Deep Creek Culvert Replacement

This project is to replace the existing 96 ft. X 112 ft. metal culvert with a 20 foot span pre-cast bottomless box culvert, or a 20 foot span multi-plate arch culvert. The bottom will be a stream-simulation bed designed to conform to the characteristics of a reference reach of Deep Creek near the project location. This work consists of, but is not limited to, erosion control, dewatering the site with a stream bypass, limited clearing and grubbing, excavating and stockpiling embankment material, removal of the existing culvert, , poured-in-place, and, or pre-cast structural concrete (for footings, stemwalls, box culvert, headwalls and wing walls), assembling a multi-plate arch or installing a box culvert, placing and compacting structural and common backfill, re-aligning and re-grading 225 feet of stream channel, placing streambed simulation rock and stream structures, placing and compacting aggregate surfacing, and re-vegetation of embankments and disturbed areas. This project is being solicited as a Request for Proposals using negotiated procedures. The project is located on the Salmon/Cobalt Ranger District, Salmon-Challis National Forest, Lemhi County, Idaho. The approximate start work date is July 15, 2008 and shall be completed no later than October 15, 2008. Proposals are due at 3:00 p.m. MST, May 15, 2008. The estimated price range is $100,000 to $250,000. The solicitation will be available on approximately April 15, 2008 and may be downloaded from this site at that time. All responsible vendors shall be registered in the Central Contractor Registration database. You may register at www.ccr.gov.