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I-5 Pavement Rehabilitation - Castaic to Palomas Wash Bridge

I-5 Pavement Rehabilitation - Castaic to Palomas Wash Bridge

Location
Santa Clarita, California
Client
California Department of Transportation
Designer
California Department of Transportation
Contract Value
$127.7 Million
Completion Date
2019
Market Sector
Roadways & Bridges
Capabilities
Self Performance

This project's work includes removing and replacing the existing pavement from the I-5/SR 14 Interchange north for 15.8 miles. Atkinson has separated the project into north and south segments. The south segment consists of the first four miles from the I-5/SR 14 Interchange and includes working behind temporary barrier to complete stages one to four. After completing staged construction, Atkinson is performing lane pavement and panel replacements during night and weekend closures. The north segment includes the remaining 12 miles of work and consists of lane pavement and panel replacement during numerous night and weekend closures. Atkinson is completing the panel replacement scope of work using precast panels and construct the lane pavement replacement using rapid-set concrete. Major quantities on the project include: 350,000 cubic yards of Roadway / Concrete Excavation, 60,000 cubic yards of Class 3 Aggregate Base, 60,000 cubic yards of Lean Concrete / Rapid Set Lean Concrete Base, 13,500 tons of Asphalt Paving, 55,000 cubic yards of Concrete Paving, 164,000 cubic yards of Rapid Set Concrete Paving, 2,800 Precast Concrete Panels, and miles of pavement markings.

Major challenges for the project team include removing existing pavement during nightly closures and replacing it with new concrete pavement prior to opening to live traffic the following morning. The project team can overcome these challenges by utilizing volumetric concrete batch trucks. These trucks can produce concrete that will set and reach opening age concrete strengths within two hours of placement.

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