Daniel Boyle Engineering

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FY 2004/05 SEWER LINE RECONSTRUCTION
City of Laguna Beach
Laguna Beach, CA

This project involved the assessment and design for reconstruction or repair of 26 separate sewer mains in various locations around the City. The project totaled approximately 6,500 feet of 6-inch through 15-inch diameter gravity sewers, manholes and force mains. The scope of services included survey, geotechnical, assessment inspection, traffic control plans, preliminary design and final design. A variety of design and construction methods were considered including dig and replace, cast-in-place pipe (CIPP) rehabilitation, and other lining methods. Project locations included Pacific Coast Highway and Highway 133, both under Caltrans jurisdiction, that required special coordination and permitting. One project extended onto Crescent Bay Beach, which contained its own unique coordination and construction issues.

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NORTH BATIQUITOS FORCE MAIN
POINSETTIA PARK SEWER
SAHI 24-INCH INTERCEPTOR SEWER
Carlsbad Municipal Water District
Carlsbad, CA

These three sewers were designed, bid and constructed as one project. They consisted of 1,200 feet of 14-inch diameter force main, 3,520 feet of 8-inch diameter gravity sewer and 2,700 feet of 24-inch diameter gravity sewer. DBE was responsible for all planning and design services including survey, mapping, preliminary design, final design, traffic control plans and construction support services. All manholes were designed with PVC T-lock liners. The sewer alignments were coordinated with current and planned roadway improvements by the City and Caltrans.

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FREEWAY LIFT STATION
FORCE MAIN RECONSTRUCTION
El Toro Water District
Lake Forest, CA

This existing 3,200 LF, 12-inch diameter force main, which is a critical facility, had failed several times. The new force main had to be constructed along a different alignment so that the existing line could remain in service. The new alignment included a bore and jack crossing under a flood control channel, deep excavation at the lift station and creative construction details at both connections to minimize down time during the switch over. DBE provided all preliminary design, final design, permitting and construction support services for this project.