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caverdan wrote:You might try and get ahold of a street type sewer lid and metal fixture like the utility company uses. We did this to a vertical cave entrance right next the tourist road leading to a local tour cave. It says Sewer on it and everything. It's been there for years and nobody has bothered it. Seriously.....who would lift a sewer lid looking for a cave opening?
steven.millett wrote:Does anyone have any plans for building a decently constructed bat gate for a 36" I.D. lined, plastic culvert? It doesn't have to be bombproof, but should be strong enough to keep local kids from busting in (or damaging) with rocks. Its a vertical culvert.
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