McCorkle Creek Detention Structure Phase 2

Providing all materials and labor to raise the existing earthen detention structure approximately 15-feet and construct an approximately 200 foot long by 75 foot wide reinforced concrete spillway, a 12-foot x 10-foot by 40-foot tall reinforced concrete slide gate structure, reinforced concrete low flow inlet structure, reinforced concrete flow control outlet structures, 305 linear feet of 48-inch diameter ductile iron pipe, approximately 1,500 linear feet of gravel access road, 125 linear feet of 12-inch diameter HDPE pipe, plug and abandon 160 linear feet of existing 36-inch storm pipe, chimney drains, staff gauge, erosion and water pollution control, site restoration, and all other work as specified herein and as shown on the drawings. All construction work is to be completed within 400 working days. Bid documents can be reviewed, download or printed on your own equipment during the bidding period at the following link -https://www.co.cowlitz.wa.us/bids.aspx?bidID=456.