News from the preserves, parks and backyards of Princeton, NJ. The website aims to acquaint Princetonians with our shared natural heritage and the benefits of restoring native diversity and beauty to the many preserved lands in and around Princeton.
Monday, June 13, 2011
Unsentimental About Sediment
Look at Pettoranello Pond, and it's clear that a plume of sediment is growing at the inlet, where the incoming water slows and drops whatever dirt it's carrying from upstream. If one digs this sediment out periodically, the sediment won't spread to the rest of the pond, and an expensive dredging operation can be avoided. I've mentioned this to the township, but the response seems to be that the state Dept. of Environmental Protection imposes regulatory barriers to this sort of proactive pond maintenance.
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Hrm -- if you were to build a low dam with upstream bins, specifically to slow the water and catch the sediment, would this solve the regulatory problem? At least, I might imagine, the approval would occur once when the structure is built, rather than once per clearing.ReplyDelete
Do you mean bins as in large containers that are buried below water level, then periodically lifted out, emptied and dropped back in place? (As opposed to shoveling out sediment with a backhoe.)I like the idea of one approval that would allow recurrent maintenance.ReplyDelete