Montrose County Civicplus #306

Montrose County B-117 Spring Creek Road Bridge Replacement

Montrose County Public Works is seeking a contractor to replace the B-117 Spring Creek Road Bridge over the Montrose and Delta Canal in Colorado. - Buyer: Montrose County Public Works, under the Montrose County Board of County Commissioners. The Bureau of Reclamation, Department of the Interior, Western Colorado Area Office, is the licensing agency. - Work requested: Remove the existing steel-girder bridge and build a prestressed-concrete slab bridge with spread footings and concrete abutments. Also realign and widen the approaches, install drainage and riprap scour protection, provide a cased domestic-waterline crossing, and manage traffic and erosion controls. - Major quantities: 1,800 sq. ft. of precast prestressed concrete slabs (618-06036), 250 cu. yd. of Class D concrete (601-03040), 190 cu. yd. of 18-inch D50 riprap (506-00000), and 12,400 lb. of epoxy-coated reinforcing steel (602-00020). The bid schedule also includes asphalt, aggregate base, geotextile, barriers, culvert, pipe, and other construction items listed below. - Named manufacturers and products: Contech is referenced for arched culvert designs at two other canal bridges covered by the Bureau of Reclamation license; it is not specified for B-117. Mirafi 180N is named as an example geotextile, or equal. The bid documents do not require a particular OEM for the B-117 bridge. - Other named organizations: Buckhorn Engineering, Inc. (geotechnical evaluation and design-related work); Chipeta Water; DMEA/Elevate; and CenturyLink/Lumen (utilities identified for coordination). - Notable requirements: Canal-affecting work must fit within the canal’s seasonal dewatered work window. The contractor must coordinate utilities, protect the canal and control erosion, maintain access as practicable during closure and detours, and follow the project drawings, special provisions, and applicable CDOT and county standards. A separate bid alternate covers a cast-in-place Type 9 concrete barrier and a bored waterline crossing. - Other contract obligations: The solicitation calls for relevant bridge-project experience, bid security, performance and payment bonds, insurance, and a one-year workmanship warranty. The schedule includes a $25,000 fixed allowance for minor contract revisions. - Related license context: The Bureau of Reclamation license covers three county bridge crossings—B-21, B-22, and B-117—and has a 50-year term. B-21 and B-22 are described as Contech-type arched culvert projects; this solicitation is for B-117.

Description

Montrose County is soliciting sealed bids from qualified contractors to replace the B-117 Spring Creek Road Bridge over the Montrose & Delta Canal, approximately 5.5 miles west of Montrose, Colorado. Work includes removing the existing bridge and building a new prestressed concrete slab bridge with concrete spread footings and abutments, realigning and widening the roadway approaches, drainage, riprap scour protection, a cased domestic waterline crossing, traffic control, and related work. Bids are due October 22, 2026, at 2:00 p.m.; attendance at the October 6, 2026 pre-bid meeting is mandatory. The source specifies a canal work window from November 15, 2026, through February 28, 2027, and completion no later than February 28, 2027.

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