The Federal Transit Administration (FTA) of the US Department of Transportation (DOT) has announced $300m in funding for three rail transit projects in Arizona, California and Washington.

Funding will be provided through the Capital Investment Grants (CIG) Program.

Projects that will each receive $100m in CIG funding are the South Central Light Rail Extension in Phoenix, Arizona, the Westside Subway Section Three Project in Los Angeles, California, and the Federal Way Light Rail Project in Seattle, Washington.

The Metro South Central Light Rail Extension project involves the construction of a 5.5-mile light-rail extension from downtown Phoenix to the South Mountain Village Core and will include nine stations.

The Westside Subway Section Three Project is a 2.6-mile extension from the planned Century City station to the Westwood/Veterans Hospital area. This project will include two stations.

The Federal Way Light Rail Project, a 7.8-mile light rail extension from the Angle Lake station through SeaTac, Des Moines, Kent, and Federal Way cities, will include three stations.

Transportation Secretary Elaine Chao said: “These federal grants to Arizona, California and Washington will improve mobility and the quality of life for those who depend on public transit every day.”

With the latest announcement, FTA has advanced funding for 25 CIG projects throughout the US since 20 January 2017, totalling approximately $7.63bn in funding commitments.

FTA Acting Administrator Jane Williams said: “FTA continues to evaluate and advance eligible projects in the CIG program consistent with Federal law. We are pleased to allocate funding to these projects that will improve communities in Arizona, California, and Washington.”

The CIG Program provides funding for major transit infrastructure capital investments across the US.

Projects identified for inclusion in the programme will be required to go through a multi-year, multi-step process according to legal requirements to be eligible for consideration to receive funding.