US-based technology firm Parsons has been contracted to provide engineering services for the Interstate 10 (I-10) express lane project in Los Angeles, California.

The $23.5m contract was awarded to the company by the Los Angeles County Metropolitan Transportation Authority (LA Metro).

Under the contract, Parsons will be responsible for preparing environmental reporting and concept of operations for a 17-mile express lane section on I-10.

The 17-mile express lane will integrate two existing segments to create a continuous 64-mile express lane corridor along I-10 between Alameda Street and Ford Street.

Parsons mobility solutions market executive vice-president Mark Fialkowski said: “Parsons has deep roots in California and we are proud to use our local presence and experience to expand express lane access between Los Angeles and San Bernardino counties.”

Under the terms of the contract, Parsons has also agreed to help LA Metro decide the appropriate delivery method for the project’s next phase.

Parsons said that the latest contract builds on its successful relationship with LA Metro.

In March, LA Metro’s Board of Directors approved a $679m life-of-project budget for the I-5 North County Enhancements Project.

The project aims to improve the movement of freight and people and improve the operations and safety of the freeway corridor.

The project design also included the addition of a high-occupancy vehicle (HOV) lane in each direction between Santa Clarita and Castaic to accommodate an anticipated increase in traffic.

The authority has planned other improvements in this 14-mile corridor.

LA Metro said that it will be managing the project, which will be funded through a combination of Measure R and Measure M funding, in partnership with the California Department of Transportation (Caltrans).

Last December, Parsons was given a $32m contract by the San Bernardino County Transportation Authority (SBCTA) for continued programme management expertise.

Under the five-year contract, Parsons will support the administration of a $4.3bn programme to enhance transportation and traffic management in the county.