Cyclone said:
Are they strong enough are they reinforced underneath? I made a similar (not as nice) basic bridge and it bends when my loco goes over it.
Gonna add a trestle.
As said nice work.
strong enough that i can stand on them-
they are redwood -to resist rot and moisture-strong but light
there are four 1x1 stringers on each side of the rail underneath (as well as the footboards you can see on top)
every joint or connection glued with outdoor glue and nailed too -stringers underneath are glued and screwed-with shorty but wide flanged screws for good deep purchase
the stringers rest on the abutments-there is a recessed edge as well as the uprights on the abutment face itself --very strong especially given the short span
however....the footbridge the coolie is using -thats another story entirely-built that for my son years ago in about twenty minutes-(to avoid buying a $50+ one he saw at the train shop-not much different-while the risers have blocks on the angle runner to supprt and strengthen-its really rather delicate, but not flimsy-its basswood as i recall-perhap poplar but i think basswood-stained and sealed