26-15 Winn971022B (Winneshiek)
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Description
Completion Dates: Construction: October 31, 2027 Seeding: December 31, 2027 for Buffer Seeding (follow the seeding periods in IA CS-006) December 31, 2027 for Structural Seeding (follow the seeding periods in IA CS-006) This project is for a conventional nutrient reduction wetland. In general, the work involves, but is not limited to, selective clearing, drain tile investigation and removal, excavation, grading, installation of high density polyethyelene (HDPE) pipe with CMP tile outlets, steel sheet pile installation, CMP water control structure, riprap and grout, seeding, and fence installation. This project includes around 35,150 cubic yards of earthwork, 8,385 linear feet (LF) of drain tile investigaiton and removal, 16,230 LF of HDPE corrugated profile wall pipe installation, 2,344 SF of steel sheet pile installation, a corrugated metal water control structure, 188 CY concrete grout, 1475 tons of riprap, 18.4 acres of seeding and 4,780 LF of fence installation. The estimated construction cost range for this project is between $900,000 and $1,100,000.