Marin-Sonoma Narrows HOV Widening Project (Contract B-7) (Lake or Streambed Alteration Agreement No. 1600-2020-0151-R3)

Marin-Sonoma Narrows HOV Widening Project (Contract B-7) (Lake or Streambed Alteration Agreement No. 1600-2020-0151-R3)

The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement number 1600-2020-0151-R3, pursuant to section 1602 of the Fish and Game Code to the project Applicant, California Department of Transportation as represented by Wajahat Nyaz. The California Department of Transportation (Caltrans) (Permittee) proposes to add a twelve (12) foot HOV lane along southbound U.S. 101 from approximately the MSN Segment-A2 conform limits at Franklin Overhead (OH) (crossing Sonoma-Marin Area Rail Transit (SMART) to the MSN B3 conform limits near San Antonio Creek. The Project will also add a twelve (12) foot HOV lane along northbound U.S. 101 from the MSN Segment-A3 conform limits to the MSN Segment B3 conform limits. The Project will also add (widen) ten (10) foot inside and outside shoulders along the Project limits, Modify southbound gore area ramp entrances and the exit at De Long Avenue Interchange. The Project will also modify southbound gore area ramp entrances and exits at Atherton Avenue Interchange and the Redwood Landfill Interchange. Widening of the highway will require the modification, replacement or extensions of drainage cross culvert placements through replacements, upsizing or rehabilitation to multiple facilities within the U.S. 101 corridor. Post construction stormwater quality treatment best management practices (BMP) along U.S. 101 shall also be employed.

Marin