Meridiam and Aberdeen, together as Golden Link Concessionaire (GLC), proudly celebrate the 10^th anniversary of the opening of the Presidio Parkway in San Francisco, California, alongside its Project Sponsors the California Department of Transportation (Caltrans) and the San Francisco County Transportation Authority (SFCTA).

The 1.6-mile-long parkway, consisting of four tunnels and a series of low and high viaducts, has been used by about 90,000 vehicles per day since it opened to traffic on July 12, 2015. The Parkway replaced the old Doyle Drive southern approach road and serves as the US 101 gateway between the Golden Gate Bridge and the City of San Francisco. The Parkway’s construction enabled the Tunnel Tops project, a 14-acre park-within-a-park built on and around the Presidio Parkway, and connects the Presidio of San Francisco, a National Park, and a Golden Gate National Recreation Area to the San Francisco Bay. The completion of the Parkway significantly improved safety and mobility along the regional highway network, enhanced transit flow, and strengthened pedestrian access in and around the Presidio. It replaced the former undivided and striped roadway with four separate directional tunnels, improving traffic separation. A wide, landscaped median was also introduced to minimize the risk of head-on collisions. In addition, the project laid the foundation for the Presidio Tunnel Tops—offering sweeping views of the Bay, the Golden Gate Bridge, northern San Francisco, and the downtown skyline. The initiative also upgraded crosswalks, sidewalks, and curb ramps to meet ADA standards and ensure full accessibility for all users.

Phase I of the project was delivered by Caltrans using a traditional design-bid-build (DBB) approach. For Phase II, Caltrans and the San Francisco County Transportation Authority (SFCTA), in partnership with Golden Link Concessionaire (GLC), took the lead—financing, designing, and constructing three of the four tunnels along with the connecting roadway segments. Since the Parkway's opening in 2015, GLC has been responsible for its operation and maintenance, a role it will fulfill through 2045. At the end of the contract term, GLC will hand the facility back to Caltrans in good condition and with a predefined level of remaining service life.