A contractor is suing the Metropolitan Transportation Authority over delays and cost overruns connected to the massive Interstate 405 widening project in Los Angeles.
The Daily News reported Tuesday that contractor Kiewit's suit alleges the county transportation agency caused "massive amounts of extra work" on the $1 billion project.
Nebraska-based Kiewit is the sole contractor on the new carpool lane, which connects Interstate 10 and U.S. 101 along the 405, and opened in May.
The company is seeking in excess of $400 million for out-of-pocket costs, according to court documents. The contractor wants an independent review board to evaluate its claims against Metro.
In a statement, Metro said it continues to negotiate in good faith with Kiewit to resolve specific outstanding claims under terms of its contract.