Lucky 31 turned out to be a bit of a bust. It's a large tunnel under a historic neighborhood, but it is a bit newer in construction and buries a creek. No side drains at all flowing into it (which is a bit suprising in this down - every buried creek I've wandered into so far has had drains flowing into it.)
It was an interesting tunnel on its own and there were some nice photographic opportunities.
click to view
This was taken at the base of the slide in the middle of the tunnel. The pool of water was about two inches less deep than my boots. It was about two inches deeper than Terpbrat's boots. This was my favorite section of the tunnel. The funky lighting from the inflow (which is further away than you'd think) reflected at the bottom of the slide was pretty nice.
Here's a few pictures of some of the other recently explored tunnels. Enjoy.
click to view
General Palmer outfall. It's a nice big tunnel. I wish there was more too it.
click to view
Inside the General Palmer. The wooden posts along the left side are all over the older section of the tunnel. I *think* that may be what's left of the cribbing used to build the tunnel. Besides the normal sort of RCP in this picture, there are quite a few largish ceramic pipes connected to this tunnel (largish as ceramic goes - pry a couple feet in diameter).
click to view
Muddy, muddy tunnel in Wayward Couch. Muddy, muddy, muddy. This is one of the firmer sections. A lot of the time you are sinking into pretty deep muck.
click to view
The outfall of Crossroads.
click to view
The grate room of Crossroads.
I haven't found the older stone tunnels yet. But I'm finding some nice stuff while looking for them.