• Contact Information

    Transportation and Engineering


    Monday - Friday
    7:30 a.m. - 5:30 p.m.

    Contact Us

    100 Jefferson County Pkwy.
    Ste. 3500
    Admin and Courts Facility
    Golden, CO 80419

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  • Traffic Signals 

    Traffic Signal ConcernsSignal Head

    If you believe a particular traffic signal is operating incorrectly or not allowing vehicles to pass through efficiently, use the online Service Request Form or call 303-271-8495, Monday through Friday, 7:30 AM to 5:30 PM.

    After hours, please call the Jefferson County Sheriff’s Office at 303-277-0211 with urgent traffic signal concerns.

    Requests for New Traffic Signals 

    Before a traffic signal is installed, an engineering study must be performed to determine whether the signal is warranted based on traffic volumes, speeds and available “gaps” in traffic for turning vehicles. Specifications for signals and their placement, along with minimum requirements for their installation and use, are contained in the Manual on Uniform Traffic Control Devices You are now leaving the jeffco.us website to an external site.  A new traffic signal costs between $150,000 and $300,000, so its installation must be carefully considered. 

    Basic information about traffic signals may be found on the Colorado Department of Transportation Traffic Guidelines & Information website You are now leaving the jeffco.us website to an external site.

    To request an evaluation for a potential traffic signal, use the online Service Request Form or call 303-271-8461.

    Last Updated: 6-8-2017