Pete, the washout (the first compromise of the ROW north of TOM) was figured this summer, and a presentation to the board was made with my recommendations, which they stated they wanted bigger. So, I have planned a 48 inch steel culvert for that. Steel because it is so far down. After my initial assesment and research, I had settled on the minimum, which was 36". Going with the boards request did not increase the cost much more. 170 yards of fill will keep us busy for a bit.
Now as for the slide, that is another issue entirely, and am still researching the requirements needed along the base of it, as it may be within the flood plain of Trout Brook. But we will be ready when we get there.