Caltrans selects Flatiron for $430m US Highway 50 widening project


The California Department of Transportation (Caltrans) has chosen Flatiron for a $430 project to widen and rehabilitate 53.6 miles of road on the US Highway 50 from Watt Avenue to Interstate 5 in Sacramento, California.

Construction on the project will begin this November and is expected to be completed by March 2024. During the preconstruction phase, Caltrans and the company worked together in identifying the major scope elements and finalised the contract.

Flatiron stated that its construction crew will add nearly seven miles of new carpool lanes in each direction to complete the US 50 carpool system from the eastern foothill communities into downtown Sacramento.

The contract will also include the widening of 12 bridges and the addition of three miles of retaining walls. The construction crew will replace all the lanes with new concrete pavement and asphalt.

As part of the project, a new sound wall will be added on the south side of the highway in the Elmhurst neighbourhood, which is located between Stockton Boulevard and 65th Street.

To improve truck traffic clearance, the company also said that it will lower the highway at seven overpasses.

Three pumping plants that move groundwater away from the highway will be rehabilitated along with upgrading all the signs, ramp metering and intelligent transportation systems.

In May this year, Flatiron had secured a $135m contract from Caltrans to rehabilitate a nearly 10 mile stretch of the State Route 210 in the Los Angeles community.

Under the project, the company will rehabilitate the pavement on SR 210 between I-5 and the Wheatland Avenue Undercrossing using about 160,000yd³ of jointed plain concrete pavement.

Flatiron, a subsidiary of German construction company Hochtief, offers construction services for highways, bridges, airports, rail transit, dams, water facilities and underground projects.


Flatiron to rehab US Highway 50 in California. (Credit: Flatiron Construction Corp.)

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