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File #: 19-1702    Version: 1
Type: Agenda Item Status: Approved
File created: 11/7/2019 In control: Board of Supervisors
On agenda: 12/10/2019 Final action: 12/10/2019
Title: Department of Transportation recommending the Board take the following actions related to the Mosquito Road Bridge at South Fork American River Project, CIP 77126/36105028: 1) Receive a presentation regarding the latest project development including design alternative details for the replacement of the Mosquito Road Bridge; 2) Direct staff to continue with final design utilizing the recommended design detail alternative; 3) Adopt the Addendum to the Final Environmental Impact Report certified by the Board on August 8, 2017 for the project; and 4) Approve the project as revised in the Addendum to the certified Environmental Impact Report. (Est. Time: 45 Min.) FUNDING: Highway Bridge Program Funds. (100% Federal Funds)
Attachments: 1. A - Approved Contract Routing Sheet, 2. B - EIR Addendum_Final Draft, 3. C - Presentation
Related files: 17-0725, 16-0629, 15-0553, 20-0914
Title
Department of Transportation recommending the Board take the following actions related to the Mosquito Road Bridge at South Fork American River Project, CIP 77126/36105028:
1) Receive a presentation regarding the latest project development including design alternative details for the replacement of the Mosquito Road Bridge;
2) Direct staff to continue with final design utilizing the recommended design detail alternative;
3) Adopt the Addendum to the Final Environmental Impact Report certified by the Board on August 8, 2017 for the project; and
4) Approve the project as revised in the Addendum to the certified Environmental Impact Report. (Est. Time: 45 Min.)

FUNDING: Highway Bridge Program Funds. (100% Federal Funds)
Body
DISCUSSION / BACKGROUND
Department of Transportation (Transportation) received federal funds from the Federal Highway Association Highway Bridge Program (HBP) to replace the existing Mosquito Road Bridge (Project) located in a steep canyon of the South Fork of the American River, six miles north of U.S. Highway 50, and 2.3 miles south of the communities of Mosquito and Swansboro. The purpose of the Project is to replace the existing bridge with a functional bridge that meets current design and safety standards. The Project continues to progress through the design phase, right of way, and moving toward preparation for construction. Within the design phase, design details for the bridge are being discussed which includes alternatives for aesthetic treatment, texture, and options for barrier rails. In collaboration with the Health and Human Services Agency, Transportation has discussed safety and height features for the barrier rails on the bridge, signs, emergency telephones, and lighting. Many options are being considered to increase the safety of the bridge.

Transportation continues to work with the California Department of Transportation (Caltrans) and HBP High Cost Bridge Program (HCBP) for reimbursement of this high cost bridg...

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