Route 1 & Route 8 Intersection Improvements

Provided design build engineering services for improvements to the Route 1 and Route 8 intersection in Hagatana, Guam. The project included the replacement of two bridges over the Agana River, pavement widening and strengthening, curb and gutter, driveways, signs, pavement markings, guardrail, drainage facilities, roadway lighting, utility relocation and adjustment, and traffic signal system improvements. All other necessary and collateral work necessary to complete the Project was included. The structures were designed to resist lateral and uplift forces from 11 foot waves including lateral forces from seismic events with peak Rock Acceleration of 0.34G (Seismic Category IV} and required advanced analysis methods.

In addition to the HL-93 live load in accordance with AASHTO LRFD Bridge Design Specifications, the Route 1 bridge over the Agana River designed for the special military live load vehicles.

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Client: Guam Division of Highways, Department of Public Works
Services Provided: Design Build, Phase II Design
Hagatana, Guam