Edinger Avenue Bridge Widening Project


OE provided inspection services on the Edinger Avenue Bridge Widening project over the Santa Ana River in Fountain Valley and Santa Ana for the County of Orange. The project limits were from 3101 W. Edinger Avenue to 12086 W. Edinger Avenue. The bridge originally provided two-lanes of traffic in each direction with no existing sidewalk and no bike lanes on either side of the bridge. The scope of work included widening the bridge from 2 lanes to 3 lanes on each side making it a major arterial highway. It also included constructing raised sidewalks along the south side of Edinger Avenue from Harbor Boulevard to the bridge, and adding bike lanes on both sides of the bridge to provide pedestrians and bicyclist access. The bridge was widened by 26 feet on both sides in order to provide smooth transitions and to accommodate the additional lane of traffic on each side. The project was a six-phase job and entailed resurfacing to the existing bridge and street, installation of curb, gutter, and sidewalk, the relocation of electrical power lines, building two retaining walls, and installing Rip-Rap. Since the project consisted of six-phases, the Onward Engineering Inspector provided both cities and the county with extensive amounts of traffic control coordination for the duration of the project. Furthermore, the project required a great deal of coordination between the Onward Engineering team, the City of Santa Ana, the City of Fountain Valley, County of Orange, Caltrans, the Metropolitan Water District, and the Fountain Valley Water Division.