LEDs Provide Big Savings for Oakland Bay Bridge
The California Department of Transportation recently completed an LED lighting overhaul to the East Span of the San Francisco-Oakland Bay Bridge. After three years of testing and designing custom fixtures, Musco Lighting provided an LED lighting system featuring Cree XLamp XM-L LEDs.
The bridge now employs more than 51,500 high-performance LEDs, lighting the entire East Span at an estimated energy savings of 50 percent.
The new bridge required long-lasting, efficient lighting for the new 2,047-foot East Span. After deeming a metal halide light source as an unsuitable solution for this application, Musco teamed up with Cree to deliver uniform light with glare control using compact, custom-designed fixtures. Musco was able to reduce fixture size by reducing the number of LEDs and optics in the system because of the small footprint of Cree’s LED light source.
In addition to the roadway and suspension cables, the East Span now features custom, optically directed Musco LED light fixtures along the bridge deck, bike and pedestrian paths, tunnel entrance and self-anchored suspension tower.
The expected lifespan of the lighting is 15 years.
Photo credit: Photograph courtesy of Musco.
- Alarms Management: The Future is Now
- Energy Efficiency Ratings: Benchmarks that Drive Excellence in Building Design & Operations
- NAEM Trends Report: Planning for a Sustainable Future
- Essential Guide to Lighting Retrofits and Upgrades
- EHS Managers: The Evolution from Necessary Evil to Vital Leaders
- Trends in Energy Management: Where Should Your Next Investment Be?
- The CFO and the Sustainability Reporting Chain
- 6 Steps from Getting the Most From Every Lighting Retrofit
- Integrated Building Optimization
- 2014 Environmental Leader Product and Project Awards
- Energy Efficiency Requires Engineering Efficiency
- Integrated Building Optimization: A Crucial Convergence of Demand-side and Supply-Side Energy Management Strategies
- Driving Productivity and Profit with Industrial Energy Management
- Energy Procurement in 2014: Products & Programs to Optimize Savings
- BUYING STRATEGIES IN A VOLATILE MARKET: What Businesses Need to Know about Retail Electricity Procurement