Pulling Out All the Stops

A sliplining project overcomes torrential challenges to keep a stone quarry and asphalt plant in operation.
Pulling Out All the Stops
Quarry workers cut back 50 feet into the 85-foot-high sand hill to expose the bad section of the 72-inch-diameter stormwater pipe. Quarry officials called Aaron Enterprises when they began to fear erosion could undermine and collapse the asphalt plant 40 feet away on the hill.

A collapsing 72-inch corrugated metal pipe jeopardized operations at a stone quarry in Stafford, Va. The 800-foot pipe was the main dewatering system for the pit, and the quarry dewatered every other day. Beginning in a 20-foot-deep swale, the pipe also collected stormwater and...

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