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.

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 most recent STIP

The 2021 Statewide Transportation Improvement Program (STIP) includes $21 billion ($11.6 billion for Highway/Bridge and $9.4 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 2021 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) and the Statewide Initiatives (STWD) TIPs. The 2021 STIP submission includes air quality conformity determinations, public comment information and other supporting documentation.

The Draft 2023 STIP was available for public review and comment from June 15 through June 30, 2022. The Draft 2023 STIP will be adopted as part of the 2023 TYP update by the State Transportation Commission (STC) during the August 17, 2022, STC business meeting.

After the adoption of the 2023 TYP, PennDOT will submit the Draft 2023 STIP to the Federal Highway Administration, Federal Transit Administration, and the US Environmental Protection Agency for review and approval.

Read the 2021 STIP (PDF) Draft 2023 STIP-TYP Spreadsheets (XLS) Learn about the STIP Process

The Draft STIP Project List

The Draft 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.