A brand new program underway in Lengthy Seaside may discover a extra environment friendly option to preserve the sand at Peninsula seaside from eroding away — nevertheless it additionally may very well be the reason for some new “sinkholes.”
This system, a $300,000 pilot examine, is testing a course of of blending sand and water after which pumping it by way of a 10-inch diameter pipe to the world the place the sand is required. If profitable, it may get rid of the necessity for enormous earthmover vehicles driving up and down the seaside.
“Site visitors on the seaside is fairly heavy now, and is disruptive,” Lengthy Seaside’s Marine Bureau Supervisor Elvira Hallinan stated. “A pipe can be a lot much less disruptive.
“What we’re learning now,” she stated, “is whether or not this hydraulic pumping works, how a lot sand it could possibly transfer.”
The 30-day check is utilizing an excavator on the seaside at 55th Place to get sand and water to a pump and pipeline. Crews are readily available to alter pipe lengths — with as much as 300 toes of pipeline being examined — and function the tools.
However sand “sinkholes” have appeared close to the Claremont Lifeguard Station, presumably attributable to the work.
One of many places the place the sand was being deposited is close to the water line off Claremont. On Wednesday, Feb. 5, a girl on the seaside close to that location obtained caught in a sinkhole that trapped her leg to the purpose the place lifeguards and firefighters needed to dig her out.
One other sinkhole incident was reported the following day on the NextDoor app, however the particular person concerned was capable of free themselves, in keeping with studies. Nonetheless, officers stated they’d not linked the sand-moving undertaking on to the sinkholes.
“If this method works, it could be higher than vehicles,” stated Third District Councilwoman Suzie Value, whose district consists of this stretch of seaside. “We have to set up some finest…