Southwestern Pennsylvania’s transportation infrastructure is slated to receive a slew of expansions, updates and remodels after officials approved a regional transportation improvement plan at a meeting Monday.

The Southwestern Pennsylvania Commission approved about $6 billion in funding over a four-year period as part of the 10-county region’s plan to improve its transportation infrastructure, according to a 2023-2026 Transportation Improvement Program (TIP) investment summary.

The program’s summary includes $740 million for bridge maintenance, $2.2 billion for roads, $186 million for buses and passenger vehicles and $420 million for operations and safety projects.

Roads and bridges in Southwestern Pennsylvania will see a $300 million boost in funding because of the infrastructure law enacted in 2021.

The extra money is included in a regional plan for $1.5 billion in transportation projects that is set to be approved June 27 by the Southwestern Pennsylvania Commission.

The commission’s Transportation Improvement Program (TIP) covers 2023 through 2026 and includes increases in funding for bridges, highway safety improvements and bike-and-pedestrian infrastructure compared to the previous program.

The SPC is responsible for allocating state and federal funds to local transportation infrastructure projects across 10 Southwestern Pennsylvania counties that surround Pittsburgh.