City Light System Reliability Work Will Impact Traffic on Highway 99

Seattle City Light

Contact: Tyson Lin, Seattle City Light, (206) 684-3026;

City Light will be enhancing electrical system reliability by upgrading the communication link between two south end substations and the utility’s system control center. The work requires pulling fiber optic communications cable across State Route 99 (SR 99) near Boeing Field (see the map with construction zone on the back side). The work is being done in coordination with Washington State Department of Transportation (WSDOT) and City Light’s H-Frame/Feeder installation project currently underway in the same area.

The project is planned for October 11, 2014, from 6 a.m. to 11 a.m. Rolling slowdowns on SR 99 and traffic escorts through the construction zone for this project are necessary for motorist and worker safety. There will be up to six 15-minute rolling slowdowns during the five-hour period. Drivers are advised to carefully abide by traffic restrictions and consider using alternate routes during construction. Normal traffic flow will follow once the project is complete.

Beyond enhancing communication capabilities by keeping the system control center in touch with substations, the new fiber optics are required to monitor lights on newly placed towers near I-5.

 About Seattle City Light Seattle City Light is the 10th largest public electric utility in the United States. It has some of the lowest cost customer rates of any urban utility, providing reliable, renewable and environmentally responsible power to nearly 1 million Seattle area residents. City Light has been greenhouse gas neutral since 2005, the first electric utility in the nation to achieve that distinction.