Streets & Highway

Streets & Highway


← Back to Jeffrey Road Infrastructure Improvements


With new developments driving the expansion of several communities including Irvine, Lake Forest, and Tustin, the Jeffrey Road Infrastructure Improvement project was necessary to meet traffic demand. The project included realignment of 1.5-miles of Jeffrey Road, from a four-lane to a six-lane roadway, as well as improvement of one mile of Portola Parkway. Other improvements included raised medians, curbs, sidewalks, ADA compliant ramps, pedestrian undercrossing, roadway rehabilitation, storm drain, sewer line, waterline, reclaimed water, Edison electrical conduits, and cable and telephone improvements. Cannon was selected to provide the civil engineering design, surveying, right-of-way engineering, and construction assistance services for this project.

Cannon’s services included design and relocations of 8-inch sewer; 12-inch domestic water; 12-inch reclaimed water; new 18-inch to 72-inch storm drain; new 36-inch reclaimed water; new 16-inch reclaimed water; 8-inch medium pressure gas line; undergrounding of 2×66 kV and 12 kV electrical overhead lines; joint trench cable telephone; and 12 kV SCE line, CACI line. Improvement plans were processed and approved by the City of Irvine and Irvine Ranch Water District.

As part of the project, Cannon prepared traffic detour plans for four phases of construction and coordinated three new traffic signal designs and four traffic signal modifications.

Cannon’s survey group provided horizontal and vertical control, design survey with GPS-based aerial strip topographic map, 25-foot cross sections, and prepared base maps for civil engineering design.

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Irvine, California

Streets & Highway