Carla B. Hass


El Dorado County's Department of Transportation (DOT) will be performing an 1,100 cubic yard concrete delivery and placement on Mosquito Road between 0.6 miles north to 0.8 miles south of the Mosquito Road Bridge. The construction work will require full closure of Mosquito Road at the gates beginning Friday, March 8, 2024 at 10:00 pm, and continue through Saturday, March 9, 2024 at 5:00 pm. A detour has been established via Rock Creek Road for which motorists should expect delays and allow extra time for travel.

Mosquito Road & Mosquito Bridge

March 8, 2024


March 9, 2024

10:00 pm


5:00 pm


Closure at the gates


The Mosquito Road closure is necessary to ensure motorist and worker safety while the County's contractor performs delivery and placement of 1,100 cubic yards of concrete for the Pier 3 footing at the north side of the Project. This equates to 120 concrete truckloads at an estimated 10 truckloads leaving and 10 empties returning per hour at the concrete batch plant.


Closure of Mosquito Road at the gates will reduce conflicts between the concrete trucks, pumps, and workers during the nighttime concrete placement from 10:00 pm Friday night through 5:00 pm Saturday afternoon.


The concrete truck route will be from the project's batch plant near Finnon Lake across Rock Creek Road to Mosquito Cut-off Road, and down Mosquito Road to the Pier 3 location at the 3rd switchback on the north side of the river.


The public will need to utilize Rock Creek Road for all access and expect delays during the nighttime concrete operation. Additionally, drivers are advised that if they must be on the roads during the hours of the concrete placement, extra caution should be exercised at the intersections of Rock Creek Road/Mosquito Cutoff Road and Mosquito Cutoff Road/Mosquito Road. Flaggers will be stationed above the gates at adequate turn around areas and to coordinate with Emergency Services if needed.


The County sincerely appreciates the cooperation and patience of motorists that use this roadway, and we apologize for any inconvenience resulting from this closure.


For questions regarding this construction, please contact the County's Transportation main line at (530) 621-5900 (select Option 3 for Engineering).

PR 24-04 location map.JPG


Exceptional quality of life with a strong sense of community, rural character, managed growth, and opportunity for all.