Acuity Brands Provides LED Solutions to Meet the Bay Bridge Tunnel’s Rigorous Demands
Acuity Brands Provides LED Solutions to Meet the Bay Bridge Tunnel’s Rigorous Demands
2 Pages© 2015 Acuity Brands Lighting, Inc. All rights reserved. | www.acuitybrands.com Page 1 CASE STUDY / YERBA BUENA TUNNEL Constructed in 1936, Yerba Buena Tunnel lies beneath Yerba Buena Island on I-80 in San Francisco and connects the eastern and western spans of the San Francisco- Oakland Bay Bridge. The structure is 76 feet wide, 58 feet high and 540 feet long and listed in the Guinness Book of World Records as the largest diameter bore tunnel in the world. The Situation VHO fluorescent fixtures installed in the tunnel 30 years earlier required time-consuming maintenance every two years, necessitating the expensive closure of traffic lanes inside the tunnel. Approximately 270,000 vehicles pass through the Yerba Buena Tunnel daily, bringing with them the dirt and pollution
