Temporary and permanent illumination systems, temporary and permanent intelligent transportation systems, traffic signal systems, toll structures, and utilities. Project limits are approximately mainline 1-405 Renton to Bellevue. This project will reduce congestion for drivers on Interstate 405, a main artery for Seattle’s eastern suburbs. Key parts of the project include constructing 12 miles of express toll lanes on the interstate between State Route 167 in Renton and Northeast 6th Street in Bellevue. It connects into a 40-mile system of express toll lanes, and supports the new I-405 Bus Rapid Transit System. Drivers will see a significant reduction in traffic congestion as a result of the new toll lanes.