Aquatic Traverse Points
We are working on a topo survey of a drainage channel and have an interesting challenge. Nearly all of it has dry areas where we can set control and traverse down the middle of the channel, but there is roughly 400′ between two dams that consistently holds about 2′ of water. The slopes of both sides of the channel are too aggressive and wooded to set up a gun on and the tree canopy kills any chance of operating a GPS unit, so the only alternative is to set a couple traverse points in the water down the middle of the channel. Since the channel has about two feet of water in it and the floor of the channel is limestone, I can’t think of any way we are going to be able to set something solid enough to set-up on. Any ideas?
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