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  • Transportation & Engineering Construction Project

    Wadsworth and Waterton Road Intersection

    For a general overview of this project, please view the following presentation: Wadsworth and Waterton Road Intersection You are now leaving the jeffco.us website to an external siteSlideshow Icon

    Project Scope 

    The project will make improvements to the Wadsworth Boulevard and Waterton Road intersection. These improvements will greatly improve safety of the intersection. In addition, a portion of Waterton Road will be widened. Improvements include, but are not limited to: a new mast arm traffic signal, new raised concrete medians, new dedicated turn lanes, addition of bicycle lanes, construction of a new concrete box culvert bridge at Brush Creek, and significant drainage improvements.

    The project has been awarded to SEMA Construction, Inc. for a Contract amount of $4,096,491.20.  The project is funded by Jefferson County as well as CDOT Funding Advancements for Surface Transportation and Economy Recovery (FASTER) Act of 2009 funds. Construction is anticipated to be complete in June 2017.

    Project Update (as of March 17, 2017)

    The construction activities the Contractor is currently working on are:

    • Excavation of future water quality ponds for storm water runoff
    • Grading for a portion of the new alignment for Waterton Road
    • Final grading of shoulders along Wadsworth Blvd.
    • Construction surveying
    • Construction of wingwalls for the box culvert under Waterton Road for Brush Creek
    • Placement of riprap and soil riprap at drainage structures
    • Final grading some areas to prepare for topsoil placement and seeding
    • Coordination with various utility companies regarding utility conflict.
    • Installation of the new traffic signal poles, mast arms, signal heads, and luminaires at the intersection of Wadsworth and Waterton Road  

    Construction Update Flyer Adobe Reader is required for viewing this document 

     Current Traffic Pattern 


    A single lane remains closed 24/7 on southbound Wadsworth Boulevard approaching Waterton Road. Motorists should expect intermittent flagger control and lane closures from 9:00 AM to 3:30 PM for equipment entering and exiting work zones or for work occurring in the vicinity of the intersection.

    • Southbound Wadsworth Boulevard traffic headed toward Waterton Road: use dedicated left-turn lane approximately 1,000 feet north of the intersection and yield to oncoming traffic

    • Southbound Wadsworth Boulevard traffic headed to Lockheed Martin: stay right

    • All Waterton Road traffic onto Wadsworth Boulevard must turn right. 

    • Traffic from Waterton Road headed to the Lockheed Martin plant shall use the temporary U-turn cross over on Wadsworth Boulevard approximately ¼ mile north of the Wadsworth Boulevard and Waterton Road intersection.


    The speed limit is 25 mph through the construction zone and is strictly enforced

    Roadway Construction Plans  

    Wadsworth and Waterton Construction Plans Adobe Reader is required for viewing this document


    Latest Project Video

    Paving Wadsworth Boulevard at Waterton Road with the first lift of asphalt

    Contact Information

    If you have questions or concerns, the Contractor has set up a hotline and email address for this project:

    Hotline: 303-217-1000
    Email: wadsworth_waterton@workzone.info

    If your questions or concerns have not been addressed, the Jefferson County Project Engineer is:  

    Gary Campbell
    Project Engineer

    Last Updated: 3-20-2017