This is on Billy Dog.
This is through a section that took us by surprise in that it's a friggin swamp for about a month in the spring. The runoff seems to appear about 3 weeks after all the snow is melted and it shows up in two ~80-100 foot sections.
Re-routing the "bad" sections was not really an option unless we wanted to decommission the entire second half of trail and find a totally different route that would have no guarantees to be dry. The fact that there's a ishton of fresh blowdown in the very near vicinity made the decision easy to bridge the bejesus out of the sections. It's also something that'll help with trail speed a fair bit as the lower section of trail is pretty flat with lots of duff and topsoil.
This is the first wet section:
First and second bump in the distance. These are just little floaters..something to keep the bridge interesting…"fun" in "functional" or something cheezy like that.
All the support posts have been sharpened like a fencepost and driven with a sledge until they stop..normally works out to about 2-3 feet into the virgin clay. Deeper than we would have dug them in, anyways. Plus, digging holes would mean cutting through a ridiculous layer if aspen roots.
Looking down from the second bump.
Sender off in the distance…have to keep this rollable for the masses so it'll be a jump to a tranny 10-12 feet out with a table in between.
Looking up from the launch…