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.