+stlhiker Posted December 5, 2011 Share Posted December 5, 2011 I live near I-64 in St. Louis. Near my house, there's a set of three tunnels under the interstate. The interstate is about 30 feet above the tunnels. Each tunnel is about 5 feet high and 5 feet wide. They're designed to carry rainwater, but are dry most of the year. They all go in a straight line for 400 feet to the other side of the interstate. You can see light on the other side, but they are dark and unlit on the inside. I was thinking it would be an interesting place for a cache, but wanted a little help in planning it. First off, I haven't gone back into the tunnels because I didn't have a light either time I was there, but i'm sure there's a spot to hide a cache in one of them. 2nd- If there is a spot for the cache, is it ok to put one in the tunnel? I'm not sure who owns the land that's 30 feet under an interestate. There aren't any no-trespassing signs at either side so I'd assume it's ok? 3rd- After going 200 feet in a tunnel that's under 30 feet of concrete, you'd lose your satellite reception so the possibility for a traditional is out unless I put co-ords in the middle of the interstate. What kind of cache would this be then? Should I do a multi-cache? I could have three stage multi with a cache at one end of the tunnel with co-ords directing them through the tunnel to another cache located on the other side, the 2nd cache would tell them which of the three tunnels the cache is in and a way to find how far in it is. Is that too complicated? Should I have one stage directing you to the proper tunnel and location or is a two caches before the final ok? As far as distance in the tunnel, I'm not sure how to do that. Maybe there's a crack every 5 feet where they poured the concrete, but maybe not. Is giving a set number of paces ok? Since people have different strides, I'm not sure that would work. Any ideas or help would be greatly apprieciated. If you've ever found a cache deep in a tunnel, feel free to offer suggestions on how this could work. Thanks! Quote Link to comment
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