General Contact Number: (530) 621-5567

MosquitoBridge

Mosquito Road Bridge Project - Construction

Welcome to the El Dorado County Mosquito Road Bridge Project – Construction Website 



For the overall project history, including the planning and design phases of development, refer to the link below: https://www.edcgov.us/Government/dot/Bridge%20Projects/MosquitoBridge/Pages/mosquito_bridge.aspx

The construction contract for the project has been awarded to Shimmick Construction Company, Inc. by the Board of Supervisors on Tuesday, May 17, 2022.

Traffic Closures & Impacts

What’s New (Traffic Closures & Impacts)

 

UPDATE POSTED 09/02/22: Intermittent Traffic Controls to continue on Mosquito Road through November 2022

Posted 08/12/22: During intermittent traffic controls, wait times are intended to be approximately five (5) minutes. Delays could be up to twenty (20) minutes depending upon traffic of slow-moving equipment and wide loads. Please allow extra time to arrive at your destination.

Posted 8/2/22: Intermittent Traffic Controls on Mosquito Road from August 9, 2022 through September 9, 2022 (may include Saturdays and/or Sundays). Click here for lane closure notice

Updated on 6/23/22:

Mosquito Road is anticipated to be closed to through traffic beginning approximately July 5, 2022 and ending approximately August 8, 2022. Closure limits are anticipated to coincide with the current gate locations and will be coordinated with schools and emergency response as needed. Intermittent lane closures and flagging should also be anticipated as needed for mobilization of construction equipment and materials. During this time, it is also anticipated that tree removal operations will occur for the bridge project, and routine maintenance of existing Mosquito Road Bridge will also be conducted. For additional details refer to the PCMS boards located along the roadway and to this project website. Click here for road closure notice.

As seen in this figure, the Mosquito Road Bridge Replacement Project is anticipated to result in Mosquito Road closures at approximately the existing gate locations for up to 10 weeks and will be coordinated with school schedules. This Project may also have intermittent flagging operations and lane closures along Mosquito Road, Rock Creek Road, and the neighboring roadways to the Project to facilitate Project operations and mobilization of large equipment and materials. For additional details refer to the Project’s construction website. 

Construction Progress Updates

What’s New (Construction Progress Updates)


Please click on the links below for construction progress updates:

Construction Update #1 - Posted 09/09/22

Please click on the link below for construction and progress related videos:

Mosquito Road Bridge Computer Renderings & Videos - Updated 09/14/22


Aerial view of the construction site taken on September 13, 2022


Construction Schedule Overview

For an overview of the latest project construction schedule, please click here.

**This is an approximate construction schedule for the project and is subject to changes and updates as items progress. Refer to the “Construction Progress Updates” below for additional details** 


Traffic & Staging Overview 

Mosquito Road Bridge Replacement Project is anticipated to be built in three stages as seen in this figure

  • Stage 0 involves the realignment of Mosquito Road on the north side of the canyon to allow for the new bridge abutment to be constructed on the north. This work is anticipated to be performed under a full road closure. 

  • Stage 1 involves construction of the new bridge and approach roadway (on both north and south sides of the canyon). This work is performed off alignment of current Mosquito Road and may require intermittent flagging and lane closures. 

  • Stage 2 involves construction of the final roadway tie-ins, bridge barrier rails (and metal beam guardrails), and final restoration operations. This is the final stage of construction and is anticipated to be performed under a full road closure and intermittent flagging and lane closures as needed.