Lapper County - MI
Dryden Drain Notice of Letting
Dryden Drain Contract 1 Enclosed Drain Division 1 consists of construction of an enclosed county storm sewer drain and associated improvements, including but not limited to: a. installation of approximately 8, 200 linear feet of storm sewer pipe ranging in size from 8inch to 42inch diameter, consisting of smoothlined corrugated polyethylene pipe and reinforced concrete pipe. b. construction of approximately 90 drainage structures, ranging in size from 24inch to 120inch diameter, including largediameter and outlet control structures. c. construction of underground stormwater detention facilities, including underground storage chambers, excavation of approximately 12, 000 cubic yards of earth, handling and hauling of spoils, placement of approximately 7, 400 cubic yards of aggregate backfill, and site restoration at multiple locations. d. construction of an outlet to an open channel drain, including a rock chute and grade control structure. e. clearing and grubbing of drain rightofway bulkheading of existing dr