Site work for a mixed-use development in Kelso, Washington. Completed plans call for site work for a detention facility; and water / sewer project.

Work to be performed consists of 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. All bids must be labeled as SOUTH FORK McCORKLE CREEK DETENTION STRUCTURE PHASE 2 MODIFICATIONS BID and submitted in original, either delivered or mailed, before bid opening. Electronic submissions are not accepted. It is the responsibility of the bidder to obtain addenda as needed from the provided online source; the Contracting Agency does not accommodate for bidders who fail to check for addenda. A bid proposal deposit equal to five percent (5%) of the bid proposal must accompany each bid in the form of cash, certified check, cashier's check, or surety bond. The successful bidder must enter into contract and furnish a satisfactory performance bond within the specified time. The Contracting Agency reserves the right to reject any and all bids or waive immaterial irregularities or informalities in any bid or the bidding. Doc note: It is the sole responsibility of the Bidder to obtain Addenda, if any. Addenda information will be available on Cowlitz County's website at online The Contracting Agency accepts no responsibility or liability and will provide no accommodation to bidders who fail to check for addenda and thereby submit inadequate or incomplete responses. The Lexington Flood Control Zone District (Contracting Agency) will not provide paper copies of the Project bid documents for this project for bidding purposes. A copy of the plans and specifications may be reviewed at the Cowlitz County Department of Public Works office at 1600 - 13th Avenue S, Kelso, WA 98626.