The Beardsley Regional Stormwater Detention Facility for the City of Norwalk consists of mass grading and drainage improvements.
There are two permanent pool detention ponds including the following: approximately 174,100 cubic yards of excavation, impervious clay seal, hauling and spreading excess excavation of approximately 156,000 cubic yards on adjacent commercial properties, approximately 78 linear feet of 6-foot by 6-foot RCBC, 68 linear feet of 8-foot by 5-foot RCBC, 6 linear feet of 42-inch RCAP, 9 RCP culverts varying from 15-inch to 24-inch diameter in open cut with area intakes, 9 manhole adjustments, 6 spillway structures, outlet structure, excavation, backfill, gabion lined drainage swales, rip-rap, erosion stone, erosion control, surface restoration, mobilization, traffic control, and miscellaneous work including cleanup. Development of Turnberry Road connecting Highway 28 to Colonial Drive is also planned for April 2017.
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