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APWA's Texas Chapter names SH 144 - Lake Granbury Storm Sewer Outfall Replacement Project of the

About the Project This emergency repair project arose out of a torrential rain event that hit the City of Granbury in 2015. The storm overwhelmed local storm sewer systems, causing an old corrugated metal pipe which drained into an unnamed stream and a significant portion of the city had gradually corroded and failed. The storm inundated the pipe, causing it to separate and erode quickly into a 35-foot deep sinkhole that was nearly 50-feet in width. The sinkhole opened immediately beneath a City of Granbury lift station, causing the lift station to shift, separate from its related service lines, and ultimately wash out towards Lake Granbury. City crews discovered the sinkhole at approximatel