Quite nice! What kind of snake? Can't say I recognize it. What's to not like about early spring woods.... A bridge for bikers/walkers? Sturdily supported yet light thru it.
I'm pretty sure I recognize that bridge and (if I am right), it's for cars, with a sidewalk on it for pedestrians. Bikers/runners get their choice of surface.
Trying to ascertain type of snake. There's supposed to be a Facebook page that will help.
Here's what infallible Facebook says:
Harmless Eastern Garter Snake, Thamnophis sirtalis sirtalis.