W.W.&F. Discussion Forum

WW&F Railway Museum Discussion => Work and Events => Topic started by: John Kokas on September 13, 2015, 03:19:39 PM

Title: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 13, 2015, 03:19:39 PM
With completion of track to TOM and looking at the future expansion, what is happening with the planning and design for the Trout Brook bridge.  I know there was mention a Looonnngggg while ago from someone who offered to help with the design who was a bridge design engineer but that discussion has fallen silent.  As a person with an extensive construction background, the lead time to accomplish such a task is long indeed.  Between environmental impact statements, design review, local and state approvals, this process can take several years.  IMHO it is time to get this process going in earnest as we may very well find ourselves building down the mountain only to find out that the bridge becomes a major obstacle.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on September 13, 2015, 04:15:40 PM
This process has been proceeding in the background.  Many small, unremarkable details ensue to these types of projects but don't really deserve reporting.  Our bridge engineer is still on board; the town has been consulted for any ordinance issues, and we have engaged the DEP.  in short- lack of report doesn't mean lack of progress!

Thanks for your interest- we don't mind answering these inquiries at all!  We'll certainly report when something noteworthy comes along.

Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 14, 2015, 12:47:36 PM
Jason,  thanks for the response.  I know there is so much going on that sometimes things get pushed to the side but I am glad that the big goal has not been forgotten.  Do we have a conceptual site plan and design as of yet?  I know when you start speaking with DEP type folks they want to see something on paper or they just brush you off.  It would be really nice to see either a newsletter article or something posted on the site so we can envision what is happening.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 14, 2015, 12:59:10 PM
John, there has been some preliminary work, but the thing is now trying to see what DEP wil allow there, before any bridge design is made or finalized. We are still some 3000 feet, a wash out and a large slide away from needing the bridge. So by the time we get there, we should just be laying track up to and over the bridge. Several, like 5 or so, years away.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on September 15, 2015, 07:01:56 PM
Bridge design will be similar to the original Trout Brook Trestle with talks of potential being reinforced with steel, but hidden in such a manner that it still looks like the original.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ted Miles on August 07, 2017, 09:05:29 PM
Folks,
         I ran across a reference to the Maine Department of Environmental Protection. which said that it has to do with preserving salmon and trout streams.

A waterway with the name Trout Creek; would I am sure be of interest to such an organization!

I hope that a contact has been made. I know in California where I live; the sooner the better is the rule of thumb to go by in dealing with this sort of agency.

I am a historian, not an engineer; but I should think some steel in the new bridge; given the history of the bridge failing in service in 1905.

Ted Miles, WW&F Member
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on August 07, 2017, 09:28:55 PM
The appropriate environmental agencies (Maine DEP and Army Corps of Engineers) have both signed off on our preliminary plans to bridge Trout Brook (which I doubt contains any trout at the location of our crossing.) The new bridge design is still being worked out - but look for an official announcement very soon.

Let's just say, we have this covered.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on August 07, 2017, 10:12:30 PM
Would this have anything to do with a project in NH?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on August 07, 2017, 10:21:16 PM
The July directors meeting minutes posted yesterday mentions the bridge.

Let's just say, we have this covered.

You worry me, Ed.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on August 07, 2017, 11:22:45 PM
Trout brook has no fish in it, at least for most of the year where the railroad crosses, as the brook becomes less than a stream most years.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Stephen Hussar on August 07, 2017, 11:27:23 PM
...most likely named after some guy named "Trout"
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on August 07, 2017, 11:49:46 PM
Better than many of the rivers, creeks, and streams here in PA which have native American names which no one can pronounce!  Now that's paybacks.   :D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on August 08, 2017, 02:21:39 AM
Ok. In an effort to keep things understood, the brook in question is Trout Brook. It is a Tributary to Sheepscot River. Sheepscot River is a protected waterway, for Salmon, I think Atlantic Salmon. This is why we approached the Maine DEP, and the Army Corps of Engineers before beginning work down the mountain.

Ed is somewhat correct in his statement. We have not appllied for any permits yet, so permission has not been granted. Both said they preferred a bridge crossing because Less disturbance to the subtrate.

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on August 14, 2017, 08:13:15 PM
Thoughts on design considerations for spanning Trout Creek (take 'em or leave em'):

Bailey Bridges can be easier to transport, handle, and install. (baileybridge.com being one source)

Prefab Abutments are an option  (www.stonestrong.com/blocks are available not far from Wiscasset)

Anyone talk to Maine National Guard, they do have a construction company. Just like with Humason Trestle this might be an option especially if methods that they normally use are leveraged. e.g Bailey Bridges are SOP for the Army.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ted Miles on August 15, 2017, 02:32:58 AM
Joe,
       I read someplace that the original and 1905 replacement bridges were Queen Truss designs.
I hope that modern standards will allow something that looks historic on the site of the earlier bridges. and if steel is required it can be covered or disguised to look old.

So far the railway seems like it is 1910; I hope the agencies let the museum keep to that. In fact, not doing so would go against the Secretaries Standards for Historic Preservation.

as you can tell from my earlier posts this subject is important to me!

 Ted Miles, WW&F Member
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on August 15, 2017, 12:58:27 PM
New options have come into play, stay tuned for details in the annual fund drive letter. Other steps are being taken as well, and time will tell what can happen and when.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on August 21, 2017, 05:17:28 PM
As you may or may not know by now, the Museum has been gifted a bridge. And not just any bridge. A B&M Howe Pony Covered Truss Bridge. By the National Society for the Preservation of Covered Bridges. This bridge has had it's trusses rebuilt, and comes with new cross timbers. We have been working with the NSPCB president Bill Caswell to iron out the details and help preserve this bridge as a historic structure.

There is some history that this bridge had. The Moose Brook Bridge on the Boston and Maine Berlin (NH) Branch. The line was abandoned in 1993 and turned rail-trail, then someone burnt the bridge in 2004. This is the reason for rebuilding. You can read about it more here, and what the original plan for the restored bridge was here..http://bridgehunter.com/nh/coos/moose-brook/ (http://bridgehunter.com/nh/coos/moose-brook/)
Note, some of the links on that page no longer work or are not active..

This bridge also comes with assembly paid for. Through a prearranged agreement between the National Park Service and a company called Barns & Bridges of New England.

We are responsible for any additional expenses. For example, we will be allowing Barns and Bridges to stay at the house during the assembly, and our volunteers will help with assembly to assist the contractor in timely completion. Also, any modifications that are made to the bridge, we assume the cost of that.

Current plans are for pressure treating of timbers this fall before assembly in Sheepscot. Assembly needs to take place before December 31, as this is the date the funding for assembly expires. This funding has already been extended several times, and asking for another extension may not be favorable.


This is the Snyder Brook Bridge. A sister to the Moose Brook Bridge we have been offered. It was removed from its abuttments about 4 years ago, the abuttments repaired and new siding installed and reset back into position. These images are from July 4th, 2017.
(http://i1132.photobucket.com/albums/m573/miketrainnut/0704171040_zps2mkhf4jo.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/0704171040a_zpsfvqqfvgi.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/0704171041_Burst02_zpszbvpn7uq.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on August 22, 2017, 03:50:32 AM
On 8/8/17 we had a drill rig come and take core samples at Trout Brook to determine what kind of foundation will be needed for the bridge abutments. Core samples were taken every 5 feet until the 45 foot mark when the casing in the bore hole broke. The original plan was to drill until bedrock was hit but the engineer determined we had enough soil data for the abutments at 45 feet. The bore hole was in glacial till (gravel) when the casing broke. The next thing the drill would have hit was bedrock however far down the rock was. The bore hole consisted of the railroad fill, then the usual layer of clay found in the Alna area, and then the glacial till.

Drilling rig

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1488.jpg)

Drilling rig setup on the right of way on the north side of Trout Brook.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1493.jpg)

Looking up to the right of way from Trout Brook.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1500.jpg)

Pulling out the drill pipe to put the bore sample tube down the hole.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1515.jpg)

Drilling down another five feet.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1520.jpg)

The driller checking to see what kind of material is coming back up the pipe in the water.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1529.jpg)

The driller removing a piece of drill pipe.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1543.jpg)

Another view of the drilling rig setup.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1551.jpg)

All packed up and driving back down the right of way to the truck.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1555.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1562.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1567.jpg)

Loading up at RT 218.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1584.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74011/IMG_1586.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on August 22, 2017, 11:53:52 AM
Our local contractor had mowed the ROW for us, using his excavator. This allowed the drill rig easy access.

ROW as of now.

Looking North from the trail entrance. 218 is through the tree tunnel.

(http://i1132.photobucket.com/albums/m573/miketrainnut/0819171718_zpsrbt1hkb8.jpg)

Looking South from the trail entrance

(http://i1132.photobucket.com/albums/m573/miketrainnut/0819171718a_zpstnar7vut.jpg)

Looking South about halfway through the curve

(http://i1132.photobucket.com/albums/m573/miketrainnut/0819171719_zps7kbu5nzi.jpg)

Bridge site.

(http://i1132.photobucket.com/albums/m573/miketrainnut/0819171720_zpsasufk39b.jpg)


Turned around and looking North.

(http://i1132.photobucket.com/albums/m573/miketrainnut/0819171720a_zpsaijqir8g.jpg)


Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 06, 2017, 12:07:26 AM
My just-arrived WW&F Annual Fund Drive letter shows a perfect, timely gift to the railroad...Eric Schade's sketch of a  Howe, pony truss covered bridge to span  Trout Brook, donated by the National Society for the Preservation of Covered Bridges Inc., with assembly funds from the National Park Service, Historic Engineering Record!

WW&F will need to pay for "site preparation, approaches, abutments, actual erection of the bridge". There is a timetable for acceptance, with plans to bring bridge parts to Sheepscot "later this year" by volunteers for rebuild to 2-foot gauge.
Permitting and site soil test  borings are now done.       

The 1918 Boston & Maine standard gauge bridge, fire-damaged in 2004 but with new wood replacing damage, formerly stood astride a branch line to Berlin, NH.
The letter credits bridge engineer Wayne Duffett with finding the span.

The letter also points out installing this bridge ASAP  "will advance our efforts by at least two years!"

Ya know, sometimes miracles do happen. 
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 06, 2017, 12:27:21 AM
Here are some interesting links regarding the bridge:
https://www.loc.gov/item/nh0298/ (https://www.loc.gov/item/nh0298/)
http://bridgehunter.com/nh/coos/moose-brook/ (http://bridgehunter.com/nh/coos/moose-brook/)
http://www.woodcenter.org/docs/dayton-conference/marstonandrewsmesler_moosebrook.pdf (http://www.woodcenter.org/docs/dayton-conference/marstonandrewsmesler_moosebrook.pdf)

Also, it should be noted that a bridge of the same design was installed in Head Tide as a road bridge. It is completely appropriate for a bridge of this style be erected at Trout Brook.

Now is the time to act on this, and be sure to support the fundraising efforts.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on September 06, 2017, 12:29:03 AM

The letter points out installing this bridge ASAP  "will advance our efforts by at least two years!"

Ya know, sometimes miracles do happen.

Yes, Paul, there is a Santa Claus.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 06, 2017, 12:35:41 AM
Ed...glad you pointed out the bridge will be acceptable design-wise.
I'm fired up with this nooz!  ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 06, 2017, 12:42:14 AM
Moreover, the original railway has a history of reusing standard gauge bridges - the Whitefield Iron Bridge comes immediately to mind.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 06, 2017, 01:15:38 AM
Thank you Ed for moving this thread.

This is a very exciting time for us.

There has been much work done behind the scenes, sometimes a little, sometimes a lot, for at least 2 years that I know of.

We are in the application process, and the town permit will be the first sought after.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 06, 2017, 01:24:28 AM
Sooooo, we are hoping to get the "Moose Brook" bridge?  How appropriate for the area.  Almost had my truck wiped out by one returning to Bangor on 218 after a day at the RR back in 2011.  Are we planning on having a true covered bridge with a full roof or just side sheathed?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 06, 2017, 01:53:34 AM
Look at my photos of the Snyder Brook Bridge. Trout Brook Bridge will be identical when complete, only narrowed.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Stone on September 06, 2017, 01:57:00 AM
Just got my Annual Fund Drive letter too. Cool looking structure! Almost seems a shame to cover up that beautiful wooden truss!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Smith on September 06, 2017, 02:54:17 AM
Well John, how about Plexiglass (TM) sheathing?

(Kidding!)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on September 06, 2017, 03:45:07 AM
What will the final dimensions of the bridge be?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 06, 2017, 04:50:42 AM
Looking at Ed and Mike's very-rebuilt-bridge pics, the RR will get a practically brand new structure. ;)  Yes, wish the truss members would be visible.
BUT THAT'S NOT A COMPLAINT !!  ;D  ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Stone on September 06, 2017, 07:59:41 AM
Plexiglass....hmm. Clearly, that's the solution!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 06, 2017, 10:58:15 AM
Inside dimensions are going to be 10 feet, which is the width of our shop doors. This puts the exterior width at about 14 feet, with exception to the two longer timbers thay hold the bracing.

Planning now to send some of the timbers to be pressure treated. But it needs to be done quickly because the deadline for the reassembly funding is Dec. 31...quickly approaching..
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on September 06, 2017, 01:04:22 PM
46' long??
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 06, 2017, 01:35:43 PM
48' Long
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mark Spremulli on September 06, 2017, 01:37:05 PM
Is there a possibility that the bridge could be covered with a roof?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on September 06, 2017, 01:58:44 PM
Is there a possibility that the bridge could be covered with a roof?

Our bridge engineer was quite unhappy with that idea because of steam locomotives throwing stuff out the stack as they charge upgrade.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mark Spremulli on September 06, 2017, 02:06:03 PM
Oh cool no problem. Will still make a wonderful addition to the ride. Great photo ops abound
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 06, 2017, 04:05:22 PM
Regarding the hidden trusswork issue, why not just omit sheathing the trusses? Though the sheathing undoubtedly makes the 'walls'  stiffer, the rebuilt pics show those heavy truss elements apparently very able to do their job without help.
Is it mandatory that EVERY original bridge feature  be kept? It's going to be modified anyway to suit WW&F use.

Truss design and apps have always fascinated me, a brilliant way to safely span areas  using just-enough elements.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on September 06, 2017, 04:11:05 PM
The whole idea behind covered bridges is to keep the structural members out of the weather.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 06, 2017, 04:16:59 PM
Brendan...gotcha.  ;)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Stewart "Start" Rhine on September 06, 2017, 04:31:40 PM
The sheathed over trusses include a roof on top of the box running the length of the span which keeps water out of the truss system.  Our bridge will have a roof on both sides.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 06, 2017, 04:45:18 PM
Thanks, Start.
Will you all start work when the bridge pieces arrive at Sheepscot in the next few weeks, or wait until next spring?
I look forward  to following this project, along with the track extension work north.  :D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Stewart "Start" Rhine on September 06, 2017, 05:53:07 PM
The deadline for the NPS funding to cover reassembly is December 31st 2017 so we want to get the span rebuilt to 10' wide (inside measurement) this year.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 06, 2017, 06:42:51 PM
With regard to plexiglass, would it make sense to replace a section of the sheathing with a sheet of plexiglass so that visitors can see the truss inside?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on September 06, 2017, 07:30:42 PM
With regard to plexiglass, would it make sense to replace a section of the sheathing with a sheet of plexiglass so that visitors can see the truss inside?
We could also photograph the assembly process and produce a couple of very large poster prints for display nearby. Another possibility would be a small (or full-size) model of the truss, again for display nearby (but out of visitor camera range).
-John M
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Carl Soderstrom on September 06, 2017, 08:24:04 PM
I too like the acrylic covering idea. But maybe just a 4' X 8" window.

Are the abutments to be just poured concrete? Or can they be dressed to look like Dressed Stone?
Ideally it would be dressed Stone. Is anything left of the original abutments? I don't remember from previous
pix. None seen in latest.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Roger Cole on September 06, 2017, 09:44:00 PM
Does the bridge have to be set in place by Dec 31 or just reassembled and ready to go?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 06, 2017, 09:54:23 PM
Now that the embargo is over ...

What was the result of the core samples? Were both ends sampled, the other forum entry only talked about the north side. Since it was implied the bridge isn't quite long enough to fully span Trout Brook, what is the approach going to look like? Fill? Trestle? Poured concrete abutments with forms or precast sections with poured concrete infill?

Did someone do an artist's representation?

Inquiring engineers are interested...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on September 06, 2017, 09:54:35 PM
Just reassembled and ready to go (more than likely somewhere on the Sheepscot Campus).  Before anything happens onsite, we need to get permitted through Town of Alna, DEP, Army Corps, etc.  It may actually sit there for a year or so.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 06, 2017, 10:03:59 PM
So the December 31 funding deadline is just to get Barns & Bridges of New England to resize the bridge to 10' wide? It wasn't clear what needed to be done by the deadline.

Oh, and the actual bridge prior to the fire at it's original location in NH ...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 06, 2017, 10:14:41 PM
In reply to Carl's comment above, that's what I was thinking. Just one section to illustrate what the "interior" of the covered section looks like, obviously on the track side so folks on the train can see it.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 06, 2017, 11:03:19 PM
Question. Was plexiglass around in 1910? No. The trusses will not be visible through any plexiglass at all unless the train is stopped.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 06, 2017, 11:34:16 PM
Seems to me that a plexiglass panel in the bridge would reinforce one of our tenets: education of our visitors. It would not detract from the view of the bridge if it were on the inside of the cover, and since the train would be slowing for the station stop, folks could at least get a glimpse of the truss design if they wanted to look.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on September 06, 2017, 11:54:08 PM
A few things to mention to not make it seem like money raised this year will sit around for an unknown time span. With the necessary funds to do site prep work, permits, etc. Work will begin as soon as it makes sense and the museum doesn't want a bridge sitting in the parking lot, or other valuable location for years on end. By installing the bridge hopefully next year, this will literally be one less bridge we have to fill when the tracks get there, thus speeding up our track laying efforts considerably.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 07, 2017, 12:15:20 AM
Wayne,
We could do a 25% scale model (10ft long vs. 46ft for the actual) of one of the trusses at the "Trout Brook Station" near the RT 218 crossing. We could either 3-D print the cast iron nodes or actually cast them at Catskill Castings in Greene/Walton, NY or at Cattail near you.

The scale model would be a great avenue for the fundraising, a plaque could be put on / near the model to acknowledge the donors without being in any photos taken near the bridge.

The scale model could also be used as an exhibit to interpret the history of the bridge and the science/engineering behind Howe's design. We might even be able to do some interactivity with the exhibit. We would then have a science exhibit and it might open some additional avenues for fundraising.

Alex
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 07, 2017, 12:21:37 AM
By installing the bridge hopefully next year, this will literally be one less bridge we have to fill when the tracks get there,

Does that mean that it is "A Bridge Not too Far"? I still think that is a cool name for the Fundraising Campaign.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Rick Rowlands on September 07, 2017, 12:29:22 AM
Why not make part of the track side sheathing into a door that could be opened to show the interior structure?  Keep closed to protect the structure, then swing it open on operating days.  That would be more of an early 20th century solution than plexiglas.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 07, 2017, 12:52:15 AM
I LIKE that idea, Rick!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 07, 2017, 01:59:35 AM
Rick, I had that exact same idea, but lacking the time to really try and get the idea across..
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on September 07, 2017, 02:11:16 AM
Guys, what are we thinking to get the walking/biking trail across Trout Creek parallel to the bridge?  That will need some planning with the Mid-Coast Conservancy folks.

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Carl Soderstrom on September 07, 2017, 02:20:19 AM
I like Rick's idea - no anachronisms. Sliding rather than swinging doors.
Less likely to get hit?

And rather than a 1/4 scale model a 1/8 scale would be easier to put way for the winter.
Iron fittings could be welded or made from PVC or some such.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 07, 2017, 02:55:27 AM
Guys, what are we thinking to get the walking/biking trail across Trout Creek parallel to the bridge?  That will need some planning with the Mid-Coast Conservancy folks.

The Midcoast trail does not go across the stream. I believe in prior threads on the TOM trails it was stated that Midcoast does not have any plans on putting a trail on the other bank.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on September 07, 2017, 02:57:41 AM
I like Rick's idea - no anachronisms. Sliding rather than swinging doors.
Less likely to get hit?

And rather than a 1/4 scale model a 1/8 scale would be easier to put way for the winter.
Iron fittings could be welded or made from PVC or some such.
I think we still have the Humason Brook Bridge model. It would be interesting and educational to have the Trout Brook Bridge model be the same scale.....

John M
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 07, 2017, 05:04:43 AM
I like Rick's idea - no anachronisms. Sliding rather than swinging doors.
Less likely to get hit?

And rather than a 1/4 scale model a 1/8 scale would be easier to put way for the winter.
Iron fittings could be welded or made from PVC or some such.

The nodes are rather ingenious castings, it would be easier to 3D print or cast new parts at the proper scale than to fabricate from flat plate

http://www.woodcenter.org/docs/dayton-conference/MarstonAndrewsMesler_MooseBrook.pdf (http://www.woodcenter.org/docs/dayton-conference/MarstonAndrewsMesler_MooseBrook.pdf)
http://coveredbridgesociety.org/gorham/gorham-handout.pdf (http://coveredbridgesociety.org/gorham/gorham-handout.pdf)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dwight Winkley on September 08, 2017, 02:42:04 AM
Resize the bridge. Only the two pony trusses have been built. To resize the bridge, new deck timbers etc. will be ordered with a length shorter than standard gauge size.
New deck will be 10 feet wide between Trusses.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Glenn Christensen on September 09, 2017, 09:54:35 AM
Hi Guys,

You may want to widen the bridge to about 12'.  A 2' gauge wooden wedge plow is about 9' wide and it may be good to allow an extra foot or two on each side for safety's sake.

You don't want a repeat of the Fred H. Allen incident.  (passenger killed)


Best Regards,
Glenn

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike the Choochoo Nix on September 09, 2017, 12:09:27 PM
I checked the clearance requirements. Standard gauge requires three foot three inches on each side, I think the widest equipment used on the WW&F was 7 foot so 7+6'6" =13' 6". for safety's sake, and to allow the crew to easily walk by a train stopped on the bridge we should not go narrower than that.
Mike Nix
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 09, 2017, 12:15:22 PM
I believe Mike's calculations are correct for modern safety code.  Also, the question of FRA rules applying sometime in the future should be taken into consideration.  Better to adjust for it now than redo it later.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on September 09, 2017, 12:16:21 PM
We'll consider a wider clearance, and seek the advice of our railroad bridge engineer.  Everyone's thoughts on the matter are understood and appreciated.

Thanks,
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on September 09, 2017, 01:35:11 PM
My thought is this, we can't walk by a train on Humason so why would we need it on this one? The original railroad only designed bridges wide enough for a train, nothing more. In my opinion, to look more like a bridge the railroad would have had, one just wide enough for a train is what we should have.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 09, 2017, 03:25:55 PM
Not to harp continuously on the subject, but I read that the original Moose Brook bridge include two inspection panels on each truss to assess the condition of the timbers and monitor the tightness of the tension rods. Would it be anathema to use a piece of plexiglass or Lexan to replace one inspection panel on each truss?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ted Miles on September 09, 2017, 05:37:54 PM
Folks,
         I read the bridge announcement on the Facebook pages. I think this is a wonderful piece of historic preservation. Just another example of how the WW&F Railway Museum does projects with that extra effort that makes them really shine!  The next day my annul fund letter arrived; I will send a contribution!

Ted Miles, WW&F Member
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on September 09, 2017, 11:06:12 PM
Would we ever want to build a replica Maine two-foot wedge plow?  We have rolling stock from other Maine two-footers, so it's not necessarily outside of our mission...

(BTW, I think wedge plows are really cool, next only to D&RG rotaries.)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on September 10, 2017, 12:29:15 AM
WW&F had some wedge plows.  If we ever want to get serious about winter operations, then we need a plow and a flanger.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on September 10, 2017, 01:47:19 AM
Don't forget that Engine 52 has a wedge plow. https://www.youtube.com/watch?v=KySu8wd5yTo (https://www.youtube.com/watch?v=KySu8wd5yTo)
-John M
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 10, 2017, 01:47:53 AM
Not to harp continuously on the subject, but I read that the original Moose Brook bridge include two inspection panels on each truss to assess the condition of the timbers and monitor the tightness of the tension rods. Would it be anathema to use a piece of plexiglass or Lexan to replace one inspection panel on each truss?

I don't think you will see much through there. I would be concerned about sweating, then eventual rot of what it is hooked to.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 10, 2017, 02:09:15 AM
Okay. I know when I'm beaten. (sigh)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Stone on September 10, 2017, 06:17:54 PM
I guess they saw through your best arguments, Wayne!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 10, 2017, 07:54:01 PM
Ouch!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 10, 2017, 09:05:37 PM
This is not a PUNNY Truss. It is a PONY Truss..

Actually, during some of the original discussions, it was brought up that it would be grand to leave the interior of the trusses exposed. This then turned into roofing the whole structure to make it completely enclosed, looking similar to the covered bridge that was in Phillips. It was a major modification, not just slap a roof on it and be done. Height would need to be added. More discussions followed, and it was brought up that the original railroad would not have made a significant change like that. And since we are recreating what would have been, it was decided to keep the appearance as designed.

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on September 10, 2017, 09:42:50 PM
Wayne.
I guess the whole issue is now open and shut!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 10, 2017, 10:29:52 PM
Not shut, just fully sheathed....... :D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Stone on September 11, 2017, 01:01:23 AM
I guess the topic has been fully covered. Should move on before we get board.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Stewart "Start" Rhine on September 11, 2017, 01:16:30 AM
You wood put it that way.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 11, 2017, 01:19:36 AM
Stop now, before the moderator CUTS this thread.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on September 11, 2017, 01:21:41 AM
Perhaps the proper place to set up a display telling the bridge's story is somewhere on the Sheepscot campus, giving visitors the time and opportunity to learn the history and design of the bridge, either prior to or after riding the train.

Sometime shortly after our railroad had been rebuilt to Alna Center, I mentioned to Jason while passing over the Humason Brook trestle that after all the work that Harry and others, including the Marine Wing Support Squadron 472, Detachment B, of Selfridge Air National Guard Base in Mount Clemens, Michigan, had done, it was just momentary passing to train passengers.

We do make a point to mention the story of Humason in the museum guide booklet handed out to ticketed passengers, and the same will be done for the Moose/Trout Brook bridge.  We can also ask conductors to discuss the history of the bridge with passengers.

Signs can also be posted at each end of the bridge, though I'm not sure we want to encourage hikers to the bridge unless there's an adjacent trail.  Once the railhead reaches Route 218, perhaps a program can be developed to offer periodic walking tours back to the bridge.  In that case, it would make sense to provide a removable panel so tour guides can show the truss structure.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 11, 2017, 02:11:57 AM
"In that case, it would make sense to provide a removable panel so tour guides can show the truss structure."

And mosquito repellant!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on September 11, 2017, 11:05:44 AM
Considering that we will need to re-route a Midcoast Conservancy trail or two to get them off the track bed, while doing that we can include a sign near where the trail crosses close to the bridge that covers the history of the bridge. 
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 11, 2017, 12:42:59 PM
Part of the requirement for the gift of this bridge is the construction of an informational Kiosk, near the bridge.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on September 11, 2017, 12:44:12 PM
Wayne RIPS another one.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 11, 2017, 03:21:22 PM
Why not just have a model at the Trout Brook station and explain it there during the layover. It can be interactive and show the science behind the bridge.

If we start showcasing the science behind the railway we can go after new foundation funding sources instead of just coming from a historical angle.

I think we want to keep people from being too close to the bridge on an active rail line. There are lots of opportunities for injuries.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 11, 2017, 03:24:05 PM
"In that case, it would make sense to provide a removable panel so tour guides can show the truss structure."

And mosquito repellant!

don't forget the tick repellant!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 11, 2017, 03:37:13 PM
The existing Trout Brook Preserve trail comes to within sight of the bridge's North embankment. I think the kiosk should be located there (but not obstructing photography of the bridge) and include, among its information, a notice to not trespass onto the bridge itself. A couple of period "no trespassing" signs on the north end of the bridge would also be appropriate.

Moreover, since the approach trestle will also be on the north side, assuming that does not have sides and/or a walkway, that alone will discourage many trespassers. Of course, that also limits our access to the bridge if we want to give tours when it is safe to do so.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 11, 2017, 03:47:50 PM
Perhaps at the bottom of the embankment on the preserve's parking lot side?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Stephen Piwowarski on September 11, 2017, 08:19:45 PM
I would think that the point at which the stop will be located would be a good location for the trail to cross the railway and for the interpretive kiosk. If this is too far from the bridge site, locate the kiosk further down and direct visitors from the stop to the kiosk
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Benjamin Campbell on September 12, 2017, 09:05:08 PM
Super cool news about the bridge!

I have a collection of original handwritten B&MRR divisional bridge and culvert notebooks and found the following about the Moose River Bridge.

It seems to be referred to as both bridge number 262 and 1085, was 2/10 of a mile east of Gorham and was called a PONY HOWE TRUSS. It states that it had a 39’ 6” clear span with a 46’ overall length and was 20’ from the base of the rails to the ground. It gives a measurement of 17’ 11” c to c trusses.

A construction date of 1892 is given which is just about perfect for our history. “Cast iron blocks put in in 1896”. “Trusses boarded up”. “6 new HP(hard pine) floor beams, ties & guards new in 1905”. “5 10” x 16” floor beams renewed in 1914”. “Rebuild 1918”.

I took several photographs of the pages but don’t know how to resize them fit here. I can email them to someone who can resize them and add them to this discussion if they like.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Benjamin Campbell on September 12, 2017, 09:17:34 PM
I may have jumped the gun with my above post. The B&MRR records state that the bridge was "rebuilt" in 1918. Other online sources would seem to suggest that it was replaced in 1918 rather than "rebuilt" . If it was in fact replaced rather than rebuilt the data I supplied above pertains to our bridges predecessor rather than our bridge
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 12, 2017, 09:35:59 PM
I would surmise that the wood truss beams and cross-members were replaced in 1918.  I would venture to guess that the iron rods and castings are from the original structure.  So one could say its of 19th-early 20th century construction.  Time period still works for me.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on September 12, 2017, 11:21:59 PM
Whatever the history, it's all worth preserving...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 12, 2017, 11:40:55 PM
I believe that based on my research, the bridge replaced the original structure at that location.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 13, 2017, 02:29:45 PM
So I have a burning question. If we are going to use "Moose Brook" bridge to span Trout Brook, does that mean the bridge should be re-named "Moose Trout Brook" bridge? Is this like a Jackalope? ::)

I'd hate to meet a Moose Trout in a dark alley unless I had a skillet and some lemon. mmmm....
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on September 13, 2017, 03:03:46 PM
Make that a big skillet and a lot of lemons.  Mooses are big animals.  Or is that meeses?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 13, 2017, 03:30:02 PM
Here's something you should know...
The plural of moose is moose.
The plural of trout is trout.

So, if we got 2 bridges, they would be collectively known as the Moose Trout Brook Bridge.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on September 13, 2017, 03:53:55 PM
Ed,

I guess that is a better than response than the moderator sending me to the whimsy and tomfoolery listing.

Bill
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 13, 2017, 04:01:02 PM
Oh, don't worry; it's inevitable that part of this thread will end up getting flooded with bridge and water puns.
But we'll cross that bridge when we come to it.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 13, 2017, 04:25:34 PM
As a frustrated Charlie Brown would finally lament..."I can't stand it!"  :D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on September 13, 2017, 04:29:31 PM
A New Hampshire Bridge over a Maine Brook..
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on September 13, 2017, 04:59:52 PM
Must be part of the just-started New England Share A Bridge Program.
Wonderful!  ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on September 13, 2017, 06:15:03 PM
Make that a big skillet and a lot of lemons.  Mooses are big animals.  Or is that meeses?

I was assuming that the Trout genes were dominant, so the size would be small, but the horns would be a pain to deal with...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on September 15, 2017, 12:59:18 AM
Only slightly related, in this morning's newspaper, a local campground owner is offering two connected covered bridges for $1 to the person or organization that will move them to a place of safety.

http://lancasteronline.com/news/local/this-historic-covered-bridge-on-pequea-creek-can-be-yours/article_c290ee86-98c9-11e7-a7fe-47616505b471.html
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Stone on September 15, 2017, 08:06:35 AM
I bet it has some really nice truss work under that sheeting!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 20, 2017, 09:16:53 PM
The saving of the Moose Brook bridge has been mentioned by Trains magazine's online columnist Justin Franz as an example of great collaboration in historic preservation. Read more at: http://cs.trains.com/trn/b/observation-tower/archive/2017/09/20/history-lost-history-saved.aspx (http://cs.trains.com/trn/b/observation-tower/archive/2017/09/20/history-lost-history-saved.aspx)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Robert Hale on September 21, 2017, 12:30:37 PM
Oh, don't worry; it's inevitable that part of this thread will end up getting flooded with bridge and water puns.
But we'll cross that bridge when we come to it.

I truss that you have an angle on this subject. I'm beaming with anticipation.  8)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on September 21, 2017, 12:41:54 PM
Oh no........ now it begins......... I have never seen such a clever group of railroad enthusiasts.....
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Robert Hale on September 21, 2017, 12:52:45 PM
Oh no........ now it begins......... I have never seen such a clever group of railroad enthusiasts.....

It keeps the forum lively. Careful though, compliments like that will cause a boil over into a steaming pile of puns. Just don't rake me over the coals for adding fuel to the fire.  :o
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on September 21, 2017, 01:08:08 PM
Warning; sometimes it does sometimes get the moderator steaming.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Robert Hale on September 21, 2017, 01:22:43 PM
Warning; sometimes it does sometimes get the moderator steaming.

Hence why 2 puns per week is my limit. Don't want the mods throwing ballast at me.

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on September 21, 2017, 01:40:06 PM
If you limit to just two puns per week,
you may not be able to bridge the gap,
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on September 21, 2017, 01:59:31 PM
And as the Brits would say 'Mind the gap'.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on September 21, 2017, 03:17:34 PM
As long as our puns don't become a Bridge Too Far...........
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 04, 2017, 05:43:43 PM
After several weeks of planning, the bridge parts were shipped today from Gorham, NH, and arrived in Sheepscot to be unloaded a little after 1. Lee Corrigan of Lee T. Corrigan LLC of Gorham had a crew available to load when NC Hunt arrived, and due to the time it took I would say it went like clock work. A major step is now behind us.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on October 04, 2017, 06:59:43 PM
Any photos taken of the unloading? Would like to have 1 really good one saved for the Story...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 04, 2017, 07:23:10 PM
The Facebook Team was there, so some will show up soon
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 05, 2017, 01:30:53 AM
Photos Courtesy of Jason

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6073_zpspe5b4mwx.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6076_zpsvsmbmi4v.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6083_zpsdifndloj.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6094_zpskvvxvftm.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6097_zpshgg1xvm7.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on October 05, 2017, 01:34:48 AM
Wow.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on October 05, 2017, 01:49:07 AM
Kudos to Steve Z.  He was a master at using the forklift to unload the NC Hunt trucks.  As you can see, the 48' trusses were especially precarious. It all went like clockwork at this end as well.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on October 05, 2017, 02:56:25 AM
Let's tell people that assembly is a Fall Work Weekend project. ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on October 05, 2017, 04:48:56 AM
Wow squared!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on October 05, 2017, 10:56:55 AM
Why does this look like one of those "some assembly required" purchases?   ;)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on October 05, 2017, 11:08:43 AM
Instructions and batteries not included.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 05, 2017, 11:51:05 AM
Very impressive.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Gordon Cook on October 05, 2017, 05:53:45 PM
Did I see "Campbell" on one of the trucks?  That's going to take one huuge bottle of Zap a gap.   :P
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on October 05, 2017, 08:06:22 PM
Is there a 90-day return guarantee? Assembly handbook?  ;D
BTW, good FWW luck!
PLEASE bombard us with pics!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on October 05, 2017, 08:20:57 PM
And I'd say the pic of Steve forklift-moving that balanced, heavy,  truss chord is a winner. He's good!
Used to run a bedraggled, WWII Clark forklift at 2926 rebuild with a few well-meaning guys directing me simultaneously, till I told all but one to SHUT UP!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Smith on October 06, 2017, 05:02:18 PM
That final picture of the group makes you realize how valuable it is to have a flat parking lot. I don't remember what Mother Nature had created there beforehand, but doubt it was that flat. So a big thank you to the volunteers who leveled it in the past.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Roger Cole on October 06, 2017, 08:21:34 PM
I'm sure there are reasons why the bridge is being assembled where it is, but from an armchair construction superintendent's viewpoint, it would seem easier to transport the pieces of the bridge and assemble it on-site once the piers are finished.  It would seem that the track could be extended to the south pier and the bottom chords transported via flatcar(s) and lifted into place with a much smaller (and cheaper) crane than a completed bridge would require.  The rest of the bridge could be transported in like manner.  Of course, I realize what works in one's head doesn't always work in practice.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 06, 2017, 09:45:27 PM
The bridge has to be assembled by Dec. 31, 2017. There is a signed contract between the National Preservation Society for Covered Bridges, National Park Service and Barns & Bridges of New England to cover assembly. To delay any further would be another extension that the National Park Service was not in favor of. So we build it.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Roger Cole on October 06, 2017, 10:33:30 PM
Gotcha!  That explains it.  I've always heard that you shouldn't look a gift horse in the mouth (unless it's a gigantic wooden one left in the middle of the night).
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on October 06, 2017, 10:34:12 PM
Can we construct it at Sheepscot, photograph it, number the pieces, disassemble it when the site is ready, and reconstruct it on-site?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on October 06, 2017, 11:36:38 PM
It makes sense to transport the bridge as one piece and set it in one shot once assembled. Saves money on transporting back and forth, saves hassel of trying to reassemble in place, and at that point we would basically be setting a pre-fabed bridge so that may make other things a little easier/different.

It makes sense to have the bridge ready for track before the track reaches it so it does not hault progress. Humason Brook was completed before the track got there, and it worked very well.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on October 07, 2017, 12:25:52 AM
We talked about using a house moving company to move and set the bridge.  Moving big objects is something they do, they know who to contact and what to get for permits, they'll have all the equipment needed to slide the bridge into place.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on October 07, 2017, 11:14:29 AM
We also want to minimize site work, so as to minimize potential environmental disturbance, and the time taken on site.  On site work must occur in the same work window that Mike was restricted to this summer; that work window must also include site prep, pile driving, abutment finishing, and final bridge setting.  Having the bridge arrive in one piece and set within a couple of days saves boatloads of time.

See ya
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on October 07, 2017, 04:59:14 PM
Ah, bureaucracy...don'tcha love it?
The job time limit and site restrictions seem over the top.
But, knowing how you guys work, the bridge/supports will be set correctly in the time agreed to, and the site returned to original condition.  ;)
No doubt that clear, level, Sheepscot lot near tools and equipment, road access, will really help.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on October 07, 2017, 11:44:01 PM
What do I know, but it might not be so difficult to bring the assembled bridge up from 218 along the current conservancy trail/ROW???
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 09, 2017, 03:14:58 PM
http://m.wiscassetnewspaper.com/article/free-bridge-arrives-ww-f-museum-s-push-north/92989
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 09, 2017, 11:02:33 PM
Thanks for the link to the article, Mike. Hopefully, it will generate some donations.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 10, 2017, 11:24:44 PM
Jason reports and supplied the pictures..

"Today we laid out 4 rows of cribbing, carefully leveled them, and placed the 4 chords in preparation of building the trusses.  They’ll be built on their side, prepped, and tipped inward until upright.  then the floor timbers will be brought in and attached from underneath"


(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6174_zpsmxrthbf0.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6176_zpsedcpmeam.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/IMG_6179_zpsoashzs1r.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on October 10, 2017, 11:44:05 PM
So that was what all the parking lot 'Casey' work was about Saturday afternoon.  Creating the flat spot to erect the bridge timbers. 

Another WW&F project continues to move along.

Bill
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Benjamin Campbell on October 11, 2017, 01:33:08 AM
I know that at least some of the wood structure was damaged by fire and replaced. Are these longer members original or replacements?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on October 11, 2017, 01:45:28 AM
All of the wood timbers were replaced.
I believe that most (if not all) of the steel rods, castings, bolts, etc. were saved, reconditioned, and repaired.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on October 11, 2017, 02:12:02 AM
All of the wood timbers were replaced.
I believe that most (if not all) of the steel rods, castings, bolts, etc. were saved, reconditioned, and repaired.

All wood has been replaced, a few of the cast iron nodes were cracked and brazed, two nuts were made brand new...the rest of the metal is original.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on October 11, 2017, 02:15:07 AM
Jason reports and supplied the pictures..

"Today we laid out 4 rows of cribbing, carefully leveled them, and placed the 4 chords in preparation of building the trusses.  They’ll be built on their side, prepped, and tipped inward until upright.  then the floor timbers will be brought in and attached from underneath"

The cast iron nodes are the most ingenious part of the design, it allows for rapid on-site assembly of pre-fabricated parts like a jig-saw puzzle. 
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on October 11, 2017, 09:24:45 AM
Helping lay out the bridge assembly yesterday, some construction details became evident.

To Alax’s Comment, it’s amazing what was considered “quick on site work.”  All of the nodes are let into the chord timbers in exacting fashion, so they bear evenly.  Further- the nodes on the top chords are spaced farther apart than those in the bottom, on account of truss camber (slight arching of the truss).  The increase in spacing is something like 3/16” each.  This was part of the study in Cleveland, I understand.

I believe Alex is right that the nodes allowed quick on site work.  After all, the alternative was a slew of very intricate timber frame joints. 

See ya
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on October 11, 2017, 11:39:56 AM
I believe Alex is right that the nodes allowed quick on site work.  After all, the alternative was a slew of very intricate timber frame joints. 

I'll point everyone back to the story on Facebook, but the routine assembly speed was 200' of bridging in 2 days.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 23, 2017, 06:16:07 PM
Jason supplied this picture, showing the progress today..

(http://i1132.photobucket.com/albums/m573/miketrainnut/Bridge.10.23.17_zpswbupq1kr.jpeg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on October 23, 2017, 07:09:09 PM
Wow! Color me impressed!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on October 23, 2017, 07:14:43 PM
In perspective of the picture, Steve never looked so small and dainty.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Zuppa on October 23, 2017, 07:43:41 PM
Thank you, Bill. I was going for "svelte" but I think that ship has sailed. All kidding aside, we made some nice progress today.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 23, 2017, 09:35:40 PM
Very impressive.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on October 23, 2017, 10:39:29 PM
Great progress!  I can hardly wait to see a train over the finished bridge!  Thanks Jason and Mike for posting this.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ted Miles on October 23, 2017, 11:22:34 PM
A further question now that the Pony Truss Bridge has been announced; which I think will be a wonderful piece of historic preservation. 

I imagine that the original abutments were cut stone. Are they still available? If not, will the new ones be poured concrete? They can be scribed to look like stone when they are done.

Ted Miles, WW&F Member
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Gordon Cook on October 23, 2017, 11:54:43 PM
In perspective of the picture, Steve never looked so small and dainty.
Dainty and Steve Z are not concepts I ever expected to see in one sentence.  :o
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on October 24, 2017, 12:07:13 AM
Query:  why is Steve (and perhaps other WW&F volunteers) helping with the bridge fabrication.  I thought this was the total responsibility of the other group.  (Not that I'm complaining...I think the more involvement we have, the better outcome it will be for us.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on October 24, 2017, 01:13:51 AM
I am impressed. What a wonderful project.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on October 24, 2017, 01:53:58 AM
My understanding is that Tim Andrews of Barns and Bridges of New England, who holds the contract to reassemble the bridge, is allowing our volunteers to assist him under his direction and discretion. I also believe this is occurring based on Tim's availability/schedule. Jason may have some additional details...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on October 24, 2017, 07:56:59 AM
Tim Andrews holds the contract to reassemble the bridge.  Wayne Duffett, our member and volunteer, is he lead engineer for our bridges.

Our agreement with NSPCB includes the provision of some volunteer labor to help them complete the reassembly of the bridge.  This was, in turn, a result of their agreement with Tim, as Tim’s contract was let a number of years ago and they desired not amending that contract.  In the spirit of cooperation, and to give volunteers the opportunity to take part, we agreed. 

We are being mindful of the resources this is using.  We hope to have the bridge compete before the end of the year.  So far- we’ve only had two days with Tim, and two days without Tim performing structural repairs to Wayne’s specification.

Thanks,
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 24, 2017, 12:11:19 PM
A further question now that the Pony Truss Bridge has been announced; which I think will be a wonderful piece of historic preservation. 

I imagine that the original abutments were cut stone. Are they still available? If not, will the new ones be poured concrete? They can be scribed to look like stone when they are done.

Ted Miles, WW&F Member

Hi Ted.

Original abutments were wood. There is some still in place, but far from usable. The WW&F had split stone on the Whitefield Iron Bridge, but I think that was the only one.

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on October 24, 2017, 01:00:36 PM
I think Ted may have been referring to the abutments at the Moose Brook site. I imagine those are still there, now supporting the bridge used on the bike trail.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 24, 2017, 02:49:34 PM
Ok. Well those are still in use. One of our members found a picture online of the "new" Moose Brook Bridge. I will have to look for what he found, amd share here.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on October 24, 2017, 07:45:39 PM
Right after the bridge burned it was replaced with a non-covered wooden bridge since bikes and people are lighter than locomotives.

From bridgehunter.com ....

(http://bridgehunter.com/photos/33/92/339200-L.jpg)
(http://bridgehunter.com/photos/33/91/339199-L.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 24, 2017, 08:04:32 PM
While hunting for the photo of the replacement bridge, I came across the following pdf, which is a presentation of the salvaging and restoration of the trusses of the Moose Brook Bridge.

http://www.woodcenter.org/docs/dayton-conference/MarstonAndrewsMesler_MooseBrook.pdf

Also, an article on the work done at Case Western Reserve.

http://www.cleveland.com/metro/index.ssf/2012/08/reconstructed_bridge_trusses_f.html

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 24, 2017, 08:07:34 PM
Here's something you should know...
The plural of moose is moose.
The plural of trout is trout.

So, if we got 2 bridges, they would be collectively known as the Moose Trout Brook Bridge.

Ed,

What does a Moose Trout look like? ;D

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on October 24, 2017, 11:33:53 PM
Here's something you should know...
The plural of moose is moose.
The plural of trout is trout.

So, if we got 2 bridges, they would be collectively known as the Moose Trout Brook Bridge.

Ed,

What does a Moose Trout look like? ;D

Jeff S.

(http://genebahr.com/galleries/images/wall-mount-fish-carvings/DSCN4213_g12it14.JPG)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on October 26, 2017, 03:39:04 PM
While all this progress has been going on planning and assembling the bridge, Jason has been very busy assembling the Alna Shoreland Zoning application. I say assemble because it consists of almost as many different parts as the bridge. He has called on several of us for help during this process. I can not tell you how many hours I have spent, researching, proofing, discussing, measuring..and learning about turtles...

Today, Jason is in the final prep mode. A DEP rep will review it and suggest any corrections or changes. Submission to the town is set for Monday.

So, my hat is off to Jason. He has worked very hard on this recently, pulled help from those he needed it from, and compiled a very detailed permit application. Wait until you see some of it, you will be impressed.

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dave Buczkowski on October 26, 2017, 04:33:58 PM
I second what Mike has said. The application is very professional and detailed. Jason has worried and fretted over it, awoken at 3:15 a.m. for more worrying and has sought assistance from many of us. The information, research and materials he gathered will also be very helpful for the other permits we will need. I continue to stand in awe over the dedication, quality and professionalism of the many volunteers that propel the Museum forward. We are, indeed, very blessed.
Dave
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on October 26, 2017, 05:33:58 PM
Dave's comments apply to so very many of our volunteers who give so freely and willingly of their time and many talents to keep every aspect of our Museum moving forward.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on October 26, 2017, 05:41:31 PM
Hear, hear! Yes, the amount of "behind the scenes" work that has been transpiring over the last few weeks (with Jason at the charge) has been nearly staggering. Another reason to be proud of our organization.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dave Buczkowski on October 26, 2017, 05:50:24 PM
Bill;
My comments in the last two sentences of my reply were meant to be applied to the many volunteers who help us in attaining our goal whether working at Sheepscot, toiling in their basement workshop, at the computer or writing checks. As the T-shirt says - "Many hands make the work light". I appreciate each and every volunteer who supports our effort.
Dave
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on October 27, 2017, 01:16:34 AM
One thing is sure, we have a lot of spectacular talent, and  an excellent bunch of volunteers (especially work weekenders) who are so eager to learn. The only real way to express ones appreciation is to think back to the days of barn raisings and such.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on October 28, 2017, 12:15:49 AM
Assembly of second truss completed today.  Workday scheduled for Tuesday, perhaps to begin to start the deck structure.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on October 28, 2017, 02:35:09 AM
That is really going well, and rapidly.  The home team is at it again in full force.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on October 28, 2017, 09:30:26 AM
Thank you guys but for the kind words regarding the application.  I have tried to give it my full attention. 

Mike, Dave and Ed have both been a huge part of it.  Ed has produced several very professional maps for us, while I bounce nearly every reference I want to use off of Mike and Dave. 

Some of our regular crew has been actively involved in helping survey and perform other tasks, including Steve L, Randy, Phil G, Mark, and others.

See ya
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on October 28, 2017, 09:35:32 AM
The bridge assembly contractor, Tim Andrews, put in three days this week, assisted by several of our crew:  Fred Morse, Steve Zuppa, Phil Goodwin, Steve Lennox, Mark Cheetham, Eric Schade, Leon Weeks, Phil Blauvelt, Randy Beach, Zack Wyllie, Dwight Winkley, Dick Forest, Brendan Barry, and anyone else who I forgot to add...

The trusses are impressive...  Brendan has promised pictures today.

See ya
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 28, 2017, 11:42:45 AM
Sounds like things are moving along smoothly.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on October 28, 2017, 11:21:03 PM
Both trusses complete in the parking lot.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0270.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0275.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0284.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0293.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0295.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0310.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74002/DSC_0320.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on October 29, 2017, 12:00:30 AM
Monstrously big nuts!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 29, 2017, 12:52:39 AM
Any problems encountered in assembling the trusses?

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Smith on October 29, 2017, 01:11:26 AM
Brendan, that's a GREAT shot with the Moxie can. I'll bet it took a lot of same to tighten those big nuts.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on October 29, 2017, 01:40:00 AM
One pair of long timbers had a twist to them.  It must have been challenging to get that twist out.  Might have been some shouting too (twist and shout).
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dave Buczkowski on October 29, 2017, 01:43:32 AM
Interestingly, the nuts came in a big plastic bag with their own wrench... like IKEA furniture.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on October 29, 2017, 02:35:10 PM
I read somewhere that Case Western Reserve had to have a special wrench made to fit the nuts.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on October 29, 2017, 08:17:11 PM
Jeff,

There are pictures of the wrench on the Case Western Reserve Article on the Trout Brook Bridge.

http://www.woodcenter.org/docs/dayton-conference/MarstonAndrewsMesler_MooseBrook.pdf 
 
Slides 42 and 65.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Smith on October 29, 2017, 11:48:09 PM
On my computer I don't see the pictures identified by number, but the grimaces on the faces of the two guys on the wrench in "Tightening bolts on second truss Mar 19, 2012" tell it all about the Moxie required.  ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on October 30, 2017, 12:08:42 AM
FYI, there were two extension bars added to the wrenches totaling about 8 feet long.  It took two guys a lot of effort to make the final push to tighten (Jason was one of them!).

It's my understanding that there's a final process to heat the tension bars in the middle to about 150 degrees (which will expand them outward) and then do the final tightening with the wrenches/extension bars so that when they cool down (contract), the tension will be even tighter.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Smith on October 30, 2017, 12:35:58 AM
Let us temporarily refer to the very last member of the digestive tract as X. Sometimes when my father encountered a stubbornly tight cap screw, stud nut or whatever, he would exclaim "That thing is tighter'n a boar's X in fly time."
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on November 04, 2017, 09:02:46 PM
And then, there were seven...

I've been doing some research for grant applications to help fund the bridge project. We've consistently used the language adopted by the 2009 Historic American Engineering Record report that states that the "Moose Brook Bridge is one of eight boxed pony truss bridges remaining in North America."

I have since discovered that one of the two bridges of this design in Quebec, Covered Bridge # 61-02-P1 Pont Blanc over Deception Creek, burned and collapsed sometime before November 2016. FWIW, I also found a picture of the other Quebec bridge - and it is in very poor condition.

This gives us all the more reason to preserve this important bridge.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on November 04, 2017, 11:01:44 PM
I am assuming we are liberally spraying the trusses with the fire retardant NSPCB suggests? It will be significantly cheaper to apply it to the trusses in the parking lot before they are installed and covered since it will be a one-time application. The exterior boxed-surfaces would need to be treated every 5 years.

For those interested in additional detail look at Page 8-9 of the Summer 2015 NSPCB Newsletter (http://coveredbridgesociety.org/newsletters/nspcb-newsletter-summer2015.pdf).

Also consider joining the NSPCB!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on November 04, 2017, 11:13:52 PM
Page 10 of the Summer 2015 NSPCB Newsletter indicates that the Moose Brook Bridge has already been treated with fire retardant.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Alex Harvilchuck on November 04, 2017, 11:20:34 PM
Page 10 of the Summer 2015 NSPCB Newsletter indicates that the Moose Brook Bridge has already been treated with fire retardant.

Well that's what I get for not reading the entire link I sent! Does it need another coat since it was sitting outside un-assembled in Gorham?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on November 04, 2017, 11:42:58 PM
Check with Jason re the status of wood preservative and fire-proofing coatings on the bridge...I think it's complicated.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on November 04, 2017, 11:44:32 PM
Page 6 of that issue shows the funding for the treatment.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on November 05, 2017, 12:10:12 AM
(http://i1132.photobucket.com/albums/m573/miketrainnut/Bridge%20Floor%20Beams%2011.4.17_zpsdvm5bacy.jpg)

Floor Beams at the ready...

(http://i1132.photobucket.com/albums/m573/miketrainnut/Bridge%20Floor%20Beams_zpsmbndl2wr.jpg)

(http://i1132.photobucket.com/albums/m573/miketrainnut/Brideg%2011.4.17_zpsb3kqnsen.jpg)

Floor Beams ready to drill and cut. The one closest is his pattern.

(http://i1132.photobucket.com/albums/m573/miketrainnut/Bridge%20Floor%20Beam%20Cut%20off_zpsxhhyvhh7.jpg)

Cut Off piece. If you measure it, it is pretty close to 2 feet 8 1/2 inches...

We also did a test lift today with the Forklift of the truss. Just going to be used to stand it up. Worked perfectly.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike the Choochoo Nix on November 05, 2017, 01:26:20 AM
Those cutoffs look like nice blocking material.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on November 05, 2017, 01:28:36 AM
Cut offs go to the bridge contractor. We can't keep them unless he gives them to us.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on November 05, 2017, 07:27:47 PM
Mike,

I don't recall the floor beams being part of the parts kit that came from Case Western.  Were they, or did we buy them out of the funds that were raised on our various projects?

Bill
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jason M Lamontagne on November 06, 2017, 12:56:57 AM
The floor beams are part of the bridge assembly contractor’s contract.  That’s why he owns the stubs.  They weren’t part of the Case Western study, so the only prep they saw before last week was being cut to length for a wide gauge bridge- which we just corrected :)

See ya
Jason
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on November 07, 2017, 03:04:12 AM
Down to six...
Both of boxed pony bridges that were in Quebec are now gone.

Covered Bridge 61-02-P01 (http://lostbridges.org/details.aspx?id=QC/61-02-P01) partially collapsed in 2010.

Covered Bridge 61-02-P11 (http://lostbridges.org/details.aspx?id=QC/61-02-P11x) collapsed in 2012 and has been carried away by a flood.

For the sake of clarity (now that I understand the difference) there were two styles of trusses employed in a Boxed Pony bridge: Howe and Town Lattice. In North America, there are only five Howe Boxed Pony bridges and just one remaining Town Lattice Pony bridge (Livermore Bridge, spanning Blood Brook at Russell Hill Road in Wilton, NH.)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on November 07, 2017, 04:14:21 AM
Boy, am I glad we weren't gifted the Blood Brook Bridge.  Because then we would have had a Blood Trout Bridge, or would that be a Bloody Trout Bridge?  If the latter we could then be accused by our British narrow gauge friends as cursing our native fish. 

Although, having a Blood Brook Bridge would open lots of new opportunities since the elusive Moose Trout seems to have escaped our forum as subject matter.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on November 07, 2017, 02:05:16 PM
Boy, am I glad we weren't gifted the Blood Brook Bridge.  Because then we would have had a Blood Trout Bridge, or would that be a Bloody Trout Bridge?  If the latter we could then be accused by our British narrow gauge friends as cursing our native fish. 

Although, having a Blood Brook Bridge would open lots of new opportunities since the elusive Moose Trout seems to have escaped our forum as subject matter.

The moose trout are hibernating.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on November 07, 2017, 02:07:53 PM
Oh, what have I done...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Marcel Levesque on November 07, 2017, 07:18:33 PM
Since it is hunting season you will only see moose trout on Sundays otherwise they are in hiding with all of the jackelopes.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on November 08, 2017, 01:16:45 AM
So that is where they went.

I had heard that they were all hiding on various walls disguised as mounted Moose Heads.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on November 08, 2017, 01:43:57 AM
Ya know, it will only be a matter of time before one of our members digs out his old Billy Bass singing fish plaque and puts moose antlers on it! 

I can't wait  ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on November 08, 2017, 03:01:14 AM
I keep thinking I need to stay out of any more of this.......

But... if the Moose Trout are either hibernating for the winter, or hiding on the walls with the mounted Moose Heads next to the jackelopes...

Does that mean they are really...

a Moosrout???  or a Trouoose???

I am going to regret this after I click on the "Post" box.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on November 08, 2017, 03:20:32 AM
I am going to regret this after I click on the "Post" box.

Not as much as the rest of us ::)......
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on November 08, 2017, 01:52:48 PM
Ya know, it will only be a matter of time before one of our members digs out his old Billy Bass singing fish plaque and puts moose antlers on it! 

I can't wait  ;D

But, wouldn't that be a moose bass? :o

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on November 09, 2017, 10:44:27 PM
Out of curiosity, will the sheathing covering the bridge trusses be installed while the bridge is in Sheepscot, or after it is installed over Trout Brook?  Is completion of the sheathing part of the work that must be completed by the end of the year?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on November 09, 2017, 10:49:03 PM
Sheepscot. Part of the contract.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on November 09, 2017, 11:37:27 PM
Thanks Mike.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on December 02, 2017, 10:00:36 PM
The bridge trusses were stood up today.

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0325.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0331.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0336.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0347.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0355.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0357.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0363.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0368.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0378.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0386.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0391.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0402.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0416.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0423.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2502.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0432.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0437.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0440.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0445.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0455.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0461.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0464.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0471.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0473.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0485.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0494.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0506.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0507.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2542.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2522.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0512.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/DSC_0516.jpg)

Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on December 02, 2017, 11:14:28 PM
wow.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on December 02, 2017, 11:49:51 PM
A time-lapse of one the bridge trusses being stood up.

https://youtu.be/dbn8ZhP7UGA
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 03, 2017, 12:19:49 AM
I love that video. Awesome.

You see in Brendans 4th picture up from the bottom, Tim and I are working on the lateral cross braces. They will be just above the floor beams when installed.

I also learned a trick or 2 today. Working with someone like Tim can teach you a few things.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on December 03, 2017, 12:35:50 AM
Zowie! I didn't know you guys worked that fast!

Seriously, men, that's impressive.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike the Choochoo Nix on December 03, 2017, 02:12:26 AM
It's nice to see then stood up, with the people, tractor, and cars in the pictures it really gives a perspective as to how big the bridge really is . Great work!
Mike Nix
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ira Schreiber on December 03, 2017, 02:22:52 AM
An upstanding job, gentlemen.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Gordon Cook on December 03, 2017, 03:10:28 AM
Hats off to everyone for a smooth and well-planned job. Even the weather cooperated.
I'm really looking forward to crossing the bridge and then the climb up the mountain. It is going to be a really exciting feature of the railroad.
Can't wait.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Gary Kraske on December 03, 2017, 03:42:06 AM
Tremendous work and accomplishments Congratulations!  We really enjoy keeping up with the museum's various efforts.  Really appreciate the photos, videos and comments.  Regret that distance and health keep us from active participation.  Thanks again and ever forward!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on December 03, 2017, 12:50:48 PM
Gary, active participation comes in three forms, onlooking, physical help, and donations or support. :) So in one way or another you are helping. Without our generous donors and supporters, our volunteers and or outside contractor(s) wouldn't be able to make such amazing progress.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on December 03, 2017, 02:59:51 PM
Fantastic work.
I see the forklift is earning its keep. What are the pieces of lumber for that are framing the trusses?

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on December 03, 2017, 08:31:40 PM
The 2x4s are for attaching the siding to the timbers.  Additional 2x4s will be joining on the insides once everything is tied together.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on December 03, 2017, 09:00:42 PM
Is the sheathing plain lumber or is it some sort of tongue and groove?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 03, 2017, 09:36:58 PM
Ship lap siding
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dave Crow on December 03, 2017, 10:14:57 PM
Does the bridge still need to be narrowed?  If so, what will be the process to do so?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: James Patten on December 03, 2017, 11:09:55 PM
The trusses were raised at the distance apart that they need to be.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on December 04, 2017, 02:05:41 AM
The 2x4s are for attaching the siding to the timbers.  Additional 2x4s will be joining on the insides once everything is tied together.

Why are the vertical pieces so tall?

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on December 04, 2017, 08:21:12 AM
Jeff the 2x4's just haven't been cut to the right height for the backside of the truss roof yet. The roofs over the trusses slopes to the outside of the bridge.

Some more pictures I took Sunday morning.

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2550.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2557.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2562.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/turntable/IMG_2565.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 04, 2017, 01:21:59 PM
The caution tape make good wind socks.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Wayne Laepple on December 04, 2017, 03:20:05 PM
I thought the tape would warn off low-flying helicopters or drones or something.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 04, 2017, 04:22:06 PM
How could they possibly hit that bridge.  It is a massive structure.  There was a picture taken from the roof of the garage and the tail end of the woods track was in the picture just beyond the two side frames when they were still lying on their sides.  They made the woods track look like "O" scale.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Gary Kraske on December 04, 2017, 06:12:14 PM
Wasn't the original bridge designed for loads of a standard gauge engine which could go to about 200,000 pounds?  Would account for size of structure.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John McNamara on December 04, 2017, 07:24:43 PM
Indeed it's very sturdy. In addition, it's historic; it's free, and we need not worry about a Masons' train falling through it like last time. Therefore, it's a win, win, win. ;)
 
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 04, 2017, 07:27:52 PM
Clever John, Very Clever...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Joe Fox on December 04, 2017, 11:16:19 PM
The original bridge collapsed from the engine derailing and striking the truss, not structural failure. And I believe I heard the original load rating for this bridge was 150,000 lbs as this bridge was designed before trains started getting heavier and when engines were about 24 tons lighter.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 05, 2017, 02:11:32 AM
It is with great pleasure I make the following announcement.

After months upon months of very tough and thorough research, meetings, and plan design (and changes), the Alna planning board accepted the permit as complete tonight. More discussion followed, and then the Alna Shoreland Zoning permit for reconstructing the railroad Including the bridge and retaining walls) was approved. The only stipulation being any design changes must be approved by the town before they are implemented.

Many thanks to Jason who has done the bulk of the application. He has had lots of help from several of us, but he just has an attention to detail and a mind numbing appreciation for rules and regs that no one else can even touch, that really made the permit complete.

So, done with one permit. Now for about 3 more..
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Reidy on December 05, 2017, 02:59:59 AM
That is huge, huge news, Mike.  Thanks for letting us know.

I've heard bits and details on the tremendous amount of work Jason, you and others have made to reach this point.  This is a big challenge overcome.  It's greatly appreciated!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 05, 2017, 03:02:28 AM
Congratulations to Jason, Mike and all the others who are doing such a yeoman's job on keeping our Museum on 'track' and 'moving forward'!

A big hoorah for all.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Steve Smith on December 05, 2017, 03:38:37 AM
AMEN!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on December 05, 2017, 04:05:27 AM
Very impressive.  ;)
The forklift, worth its weight in tons of big culvert pipe, came to WW&F just when needed.
Will work be done by Victorian Christmas ?
You have a dyno-mite display for the riders.

Well done Mike, Jason and crew!




 
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on December 05, 2017, 02:06:49 PM
Fantastic news, Mike. What are the other 3 permits you mentioned?

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on December 05, 2017, 03:21:03 PM
A report on the meeting in today's Wiscasset Newspaper:
http://www.wiscassetnewspaper.com/article/railway-museum-expansion-track/95329 (http://www.wiscassetnewspaper.com/article/railway-museum-expansion-track/95329)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dave Buczkowski on December 05, 2017, 03:32:36 PM
I didn't know Steve Z had a twin brother....
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on December 05, 2017, 05:21:44 PM
Wow Dave, you're right!  But I think there's something different with the mustache............  ;)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on December 05, 2017, 06:50:25 PM
Aw, the fun's over. They have correctly identified the individual in the photo as Frank Zappa.  ;D


(Just kidding, but they did fix the caption; and added some new photos of the bridge.)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 05, 2017, 07:20:50 PM
I guess I should have sat next to Hannah. But I like being unseen...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on December 05, 2017, 07:22:30 PM
But then they probably would have identified you as Michael J. Fox!
(oh, wait.)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 05, 2017, 07:24:51 PM
Jeff, we now need a permit for the bridge, permits for culvert work and an individual permit for the repair at the pinch point. We will then apply for a track construction permit for sections 1, 2 & 4. Section 3 will have it's track includes, as will sections 5 & 6.
 
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on December 09, 2017, 07:45:44 AM
Floor beams being installed on Thursday 12/8.

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0527.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0614.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0555.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0549.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0559.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0567.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/IMG_2576.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/IMG_2579.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/IMG_2583.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0572.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0583.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0588.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0593.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0597.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0598.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0609.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/IMG_2602.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0633.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0649.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0652.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0694.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0654.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0659.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0666.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0670.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0721.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0728.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0535.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0732.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74003/DSC_0736.jpg)



Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Jeff Schumaker on December 09, 2017, 02:29:46 PM
Impressive. Thanks for the images, Brendan.

Jeff S.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Paul Uhland on December 09, 2017, 11:00:43 PM
Half the deck members mounted.
Stupendous!
Betcha the bridge is done by first VC, next weekend.  ;D
And tnx for the detailed photo coverage.  ;)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 09, 2017, 11:50:02 PM
I see in some of the pictures that we have a new grade crossing on the woods track in the parking lot.  Will that stay?  Has it been named?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on December 10, 2017, 12:04:58 AM
So which part of the bridge actually rests on the abutments?
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on December 10, 2017, 12:19:03 AM
Re "crossing" - No crossing. Those planks were to protect the track when the forklift lifted that side of the bridge.

Re abutments - The 47' bridge will be centered across the 74' gap, supported by two piers. There will be two 12' approach spans - one on each side of the bridge. This design was chosen to minimize environmental impact, and keep the piers out of the brook waterway.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 10, 2017, 02:36:50 AM
The rest of the floor timbers were installed today, and the angled outside braces were started. I think they got one done.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 10, 2017, 03:04:05 AM
Ok.... help me out here....

One bridge that is 47 feet long
Two approach spans, each 12 feet long
According to my meager math skills that adds up to 71 feet of span
Across a 74 foot gap....
What am I missing here????

Is our wonderful machine shop working on a new star trek levitation device for the other three feet?
Will the three foot gap be divided into half so each end of bridge will only require the trains to jump a 1 1/2 foot gap????
Oh.... wait.... I figured it out.... if we put a 3/4 foot gap between each end of the bridge and the approach spans.... then.... will the radius of the wheels allow them to bridge (pun intended) the gap???? 
Might work on the locomotive with the larger wheels but what about the cars....

Oh well, it snowed today and cabin fever is setting in and now my brain hurts....
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Tom Casper on December 10, 2017, 03:27:50 PM
Bill, I am with you, doesn't add up!

Tom C.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Fred Morse on December 10, 2017, 03:35:34 PM
Maybe, at 2oo MPH!
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Ed Lecuyer on December 10, 2017, 03:56:49 PM
Sorry, I was going by memory with the numbers. I don't have the final lengths of the two approach spans.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 10, 2017, 04:01:35 PM
Good idea Fred.

Now we need to:
1. Have the Superintendent amend the speed limit in the rule book.
2. Greatly improve the brakes so we can cross the bridge at 200 mph and still stop before 218.
     Achieving this speed going down the mountain should be easy.
     Slowing down going up the mountain should also be easy.
3. Complete an engineering study to increase the boiler pressure to allow acceleration from zero at 218 to 200 mph by Trout Brook Bridge.
4. Increase the engine cylinder size to utilize the increased pressure to enable the aforementioned acceleration.
5. Implement the engineering study recommendations in our locomotives. (note I have left 51 and 52 out of this proposal)

Now my brain hurts again....
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bill Baskerville on December 10, 2017, 04:03:35 PM
But Ed,

We were beginning to have so much fun with this dilemma.
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: John Kokas on December 10, 2017, 04:18:12 PM
I can help the braking situation, I know where I can acquire some used drag chutes from the USAF.  Good up to 250 knots!   ;D
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Bob Holmes on December 10, 2017, 11:50:17 PM
Back to my question which I phrased poorly.  Which part of the bridge sets directly on the abutment:  is it the ends of the side trusses?  Are the bottom cross pieces below the level of the abutment, and do they then have the tracks mounted to them?

Or is it something else I cannot picture?

Thanks...
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 11, 2017, 12:25:21 AM
Bob,
The ends of the trusses are over the abuttments. There will be some smaller floor timbers they will sit on
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Dwight Winkley on December 11, 2017, 03:11:46 AM
Bob, The cross beams are bolted below the truss. When you look at a side view of the bridge you will see the cross beams are not located near the ends. That part of the bridge will be located over the abutments

On top of the cross beams are 3 sets of cross timbers, in the shape of a "X".

4 stringers are than put on the cross beams. A lot of cutting has to be done to fit the stingers over the cross timbers.

The 10 foot ties are than lied on the stringers

dwight
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Brendan Barry on December 11, 2017, 04:30:06 PM

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74010/mb2.jpg)

(http://i148.photobucket.com/albums/s5/bbarry74/bbarry74010/mb1.jpg)
Title: Re: Trout Brook Bridge - Official Work Thread
Post by: Mike Fox on December 11, 2017, 11:34:03 PM
The DEP permit has now been submitted.