Project Description

Orange County Sanitation District
Ellis Avenue Tunnel

Orange County Sanitation District, Ellis Avenue Tunnel

Guida provided surveying services for this 1.3-mile tunnel with several tight bends with radius of only 500 feet, using a Herrenknecht EPB 2400TB tunnel boring machine. The tunnel was constructed of rib and lagging. This project included providing control at the bottom of the pit, control for the driving the Herrenknecht gyro system using the UNS system. The project also required the use of high accuracy total station and gyro total station for survey control.

PROJECT INFORMATION

Project Owner:
Orange County Sanitation District

Location:
Orange County, CA

SERVICES PROVIDED

Tunnel Survey
Control Survey
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As an SBE/WBE firm ourselves, we have always strongly believed in the promotion and utilization of other small and disadvantaged business enterprises. We are thankful for the opportunities we have had to demonstrate our commitment to this promise by helping our clients accomplish their utilization goals.

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Orange County, CA

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