Orange County Transportation Authority (OCTA) Interstate 405 Improvement Program, Los Alamitos to Costa Mesa, Orange County, CA
PROJECT BACKGROUND
OCTA, in cooperation with Caltrans District 12, is improving 16 miles of the I-405 between the SR-73 freeway in Costa Mesa to the southeast and the I-605 West County Connector in Los Alamitos, northwesterly near the Los Angeles County Line. The I-405 is an essential artery in the region and is one of the most congested freeways in Orange County, carrying more than 300,000 vehicle trips in some sections per day.
PROJECT DETAILS:
Value: Overall Client Contract $1.2BType: Design-Build
Owner: OCTA / Caltrans District 12 Right-of-Way
Location: Los Alamitos to Costa Mesa, Orange County, California
PROJECT SCOPE
By 2040, traffic volumes on the I-405 are expected to increase significantly. The project will increase freeway capacity, improve traffic, and interchange operations, and enhance road safety to meet state and federal standards. Improvements include adding one general purpose lane in each direction and constructing the I-405 Express Lanes, incorporating the existing carpool lanes, and a new lane in each direction between SR-73 and I-605. The OCTA I-405 Design-Build Improvement Project is included in one of the 16 federal critical infrastructure sectors (Transportation) and continues to undergo construction during the COVID-19 pandemic.
OUR ROLE
G3 Quality has been providing quality materials control, inspection, and testing since construction began in 2018. Our scope covers quality control management for jointed plane concrete pavement (JPCP) used on the roadway alignment. Major features of the project include the demolition and reconstruction of 18 widened bridges, new bike lanes, and new culverts and railroad overheads.
PARTNER WITH US
Let us provide quality support and expertise for your next project.
Project Details
Name:
San Bernardino County Transportation Authority Interstate 10 Express Lanes Corridor Contract 1
Contract Number:
SBCTA 17-1001599; Lane Job #9151; G3 Project Number RD300
Value:
G3 Contract $9.5 million; Overall contract $673M
Type:
Design-Build
Client:
Lane – Security Paving Joint Venture
Owner:
San Bernardino County Transportation Authority
Location:
Los Angeles/San Bernardino County Line to the I-10/I-15 Interchange in Ontario.
Duration:
2019 to 2023
