B08_Attachment_2_Drawings_Maps_Figures.pdf

This document is a detailed set of technical drawings and traffic control plans for a deep cleaning project of the Barry Baker Tunnel in the Golden Gate National Recreation Area located in Sausalito, California. The drawings provide comprehensive information about tunnel dimensions, weep hole cleaning, mineral buildup removal, and specific traffic management strategies during the cleaning work. Key technical details include tunnel cross-section specifications showing lighting conduits, water lines, and existing infrastructure, as well as precise diagrams illustrating traffic control measures for both north and south tunnel walls.

The technical drawings outline specific requirements for the cleaning project, including traffic flow restrictions, one-way inbound traffic protocols, and designated staging areas. Specific traffic control notes indicate that vehicles leaving the Marin Headlands will be detoured to use McCullough Road, with barricades and detour signage implemented. The documentation includes aerial maps showing the tunnel entrances, staging areas, and surrounding roads, as well as detailed diagrams of tunnel cross-sections and equipment positioning. The project involves carefully managed traffic flow to accommodate deep cleaning work on the tunnel's walls, gutters, and utility lines while maintaining safety and minimal disruption.