How It Works

Statewide Transportation Improvement Program (STIP)

The Statewide Transportation Improvement Program (STIP) lists statewide planned projects and assigns funding over a four-year period. It includes the 24 regional Transportation Improvement Programs (TIPs) and two statewide-managed TIPs (Interstate Management Program TIP and Statewide Initiatives TIP). 

Who creates it?

PennDOT combines the 24 regional and two statewide-managed TIPs to create the STIP. PennDOT submits the draft STIP to the Federal Highway Administration, Federal Transit Administration, and the US Environmental Protection Agency for review and approval.

When is it updated?

The STIP is updated every two years after the regional TIPs are submitted and approved. The Draft 2023 STIP Public Comment Period was held from June 15 through June 30, 2022. Learn more about the STIP process here.

What laws and regulations are involved?

How does it impact the planning process?

The STIP makes up the first four years of the 12-Year Program (TYP).

Public Participation Opportunities


Read the 2023 STIP

The Draft 2023 STIP was available statewide for public review and comment from June 15 through June 30, 2022. Additionally, while there are no areas in Pennsylvania under the jurisdiction of Indian Tribal governments, PennDOT considers federally-recognized Tribes to be interested parties. Accordingly, PennDOT coordinated with representatives of 15 federally-recognized Tribes that have interests in Pennsylvania to provide opportunities for review and comment on the Draft 2023 STIP during the comment period. At the end of the comment period, PennDOT had received a total of 50 comments for review and consideration. PennDOT then submitted the Draft 2023 STIP to the Federal Highway Administration, Federal Transit Administration, and the US Environmental Protection Agency for a 45-day review and approval period on August 17, 2022. The 2023 STIP submission included air quality conformity determinations, public comment information and other supporting documentation. The Draft 2023 STIP received federal approval and went into effect on October 1, 2022.

The 2023 STIP includes $28 billion ($15.9 billion for Highway/Bridge and $11.4 billion for Transit) in federal, state, local, and private resources over the four-year period for capital improvements. The STIP consists of a list of prioritized projects/project phases identified for funding by federal fiscal year. The 2023 STIP includes Transportation Improvement Programs (TIPs) as adopted by each Metropolitan Planning Organization (MPO) and Rural Planning Organization (RPO), as well as the TIP for Wayne County, the centrally managed Interstate Management (IM) TIP and the Statewide Initiatives (STWD) TIP.

Read the 2023 STIP (PDF) Read the 2023 STIP/TYP Spreadsheets (XLS) Learn about the STIP Process

The 2023 STIP Project List

The 2023 STIP has been broken up by county to make searching easy. Select a county on map to view the regional TIP project lists. The Interstate and Statewide projects are grouped separately and can be viewed here: Interstate or Statewide Project Lists. Use the toggle below to switch between the TIP (2023-2026) project lists and the full TYP (2023-2034) list.