Roadway/Transportation – Capital Improvement Projects (CIP)

Capital Improvement Projects (CIP) are projects funded by the County, or through the use of grant funding. They include the replacement or construction of bridges/culverts, paving and widening of existing roadways and construction of new regional roadway arterials. Paving of existing local residential gravel roads (in old subdivisions where the roads were never built by the developer, or were built but were never accepted by the County for maintenance) are accomplished through the use of Local Improvement Districts administered through the Engineering Division. CIP staff functions with regard to the implementation of Capital Improvement Projects include: surveying, developing conceptual alignment, studies, preliminary and final design, preparation of construction plans and specifications, acquisition of right-of-way, bidding of work and management of construction activities.

Current Bid Information Available for Contractors

  • Happy Canyon Creek Drainage Improvements (Phase I):Separate sealed bids for Happy Canyon Creek Drainage Improvements (Phase I); Douglas County Projecgt Number CI 2013-023, will be received by the Owner, Douglas County Government, Department of Public Works Engineering, Philip S. Miller Building, 100 Third Street, Suite 220, Castle Rock, CO 80104, until Tuesday, November 28, 2017, at 2 p.m.  This project consists of constructing a new storm sewer with drainage inlets and manholes along a tributary to Happy Canyon Creek in the Charter Oaks Development.  The limits of work will be from W. Oakwood Ln on the North end to W. Oakwood Ln on the South end. For Contractor convenience, an electronic bid schedule is provided.  Bidders shall submit bids in accordance with the Contract Documents and Specifications. Addendum #1 – November 20, 2017
  • Rocky Mountain Online Bid System
    The Rocky Mountain E-Purchasing System provides simplified tracking of documents and amendments; instant access to the entire supplier database; streamlined bidding process and improved response times; and increased bidding competition leading to decreased cost of purchase. Currently, there is no cost to the County to utilize this system; however, enhanced membership would allow the County the opportunity to accept electronic bid and proposal responses.

I-25 Gap Coalition

Consistent with their six goals for the County, the Board of Douglas County Commissioners has committed $250,000 in the County’s 2017 budget to support a solution to the critical expansion needs of I-25 from C-470 (Douglas County) to Monument (El Paso County).  For more information visit I-25 Gap Coalition

The Colorado Department of Transportation (CDOT)  is asking drivers to ‘Mind the Gap’ as part of a new safety campaign. The Gap is an 18-mile stretch of I-25 between Monument and C-470 and is known for a higher than average number of crashes.

Daniels Park Improvements Phase 2

For more information visit

C470 Express Lanes

Information courtesy of CDOT

Project construction officially started on November 1, 2016. Travelers should now see new signage, construction equipment, and increased activity along mainline C-470 between Lucent and Quebec.

Temporary concrete barrier has been set along the shoulder to allow workers to safely perform work such as earthwork, installation of conduit for Intelligent Transportation System (ITS) equipment, soil compaction for the future trail and road-widening work, drainage operations, detour paving, potholing for utilities, surveying and geotechnical drilling for soil testing. The Broadway and mainline C-470 intersection between Quebec and Lucent has been restriped, and bridge foundation work is underway at Broadway, University, and Big Dry Creek.

New bridge girders have been set at the Broadway and University bridges for bridge widening and erection of girders for Big Dry Creek widening is anticipated for early May. Parts of the Centennial Trail between Broadway and Big Dry Creek have been relocated with asphalt pavement. Be sure to follow detour signs and obey flaggers when present.

Please remember to slow for the cone zone!  For more project information please visit

Active Projects