Background
The TIP is a four year schedule of transportation projects selected as priorities for funding by cities, villages, county road commissions, transit agencies, and the Michigan Department of Transportation. The TIP is an implementation tool of the Regional Transportation Plan (RTP). Projects in the FY 2023-2026 TIP must advance the goals and policies adopted in the RTP. There are five Amendment periods per year to process major changes to the TIP, while it is also regularly updated with minor changes referred to as administrative modifications.
General Program Accounts (GPAs) are groupings of similar routine transportation projects within the TIP as permitted in Federal regulation 23 CFR 450.324 (f) under 23 CFR 771.117(c) and (d) and/or 40 CFR part 93. Projects not required to be programmed as Line-Item projects are programmed under an appropriate GPA by jurisdiction and type, such as Local Road, Trunkline Road, or Transit Capital. When the total cost of all the projects within a GPA equals or exceeds 125% of the GPA’s current federally approved limit, an amendment is required to reflect this change in size.
Amendment periods designated (Full) allow major changes to be made to S/TIP Line-Item projects (projects not under a GPA) for any reason (cost, scope, etc.) and budget adjustments may be made to GPAs to increase total funding available for projects programmed under them.
Amendment periods designated (Cost-Only/GPA) are limited to S/TIP Line-item projects for cost changes of 25% or more, and adjustments to GPAs, when necessary, to increase total funding available for projects programmed under them.
A designation of (Special) refers to any special amendment periods that may be necessary.
RTP/TIP projects are selected by SEMCOG’s Federal-Aid Committees (FAC). FACs are charged with evaluating data and recommending projects that meet regional transportation goals while satisfying local needs. There is an FAC for each of SEMCOG’s seven counties as well as the City of Detroit. These committees are comprised of representatives of local units of government, transit agencies, and MDOT. FACs meet to discuss and approve project recommendations, which are submitted to SEMCOG for inclusion in the 2050 RTP and TIP project list. FAC’s are an essential part of developing and implementing the RTP and TIP.
FY 2026-2029 TIP
Southeast Michigan has transitioned from the 2023-2026 TIP to the 2026-2029 TIP. FY 2026 projects adopted in the 2023-2026 TIP have been amended into the 2026-2029 TIP for consistency and to ensure timely delivery of projects. The FY 2026-2029 TIP includes a variety of projects designed to address regional transportation policies and priorities – pavement, safety, bridge, operations, transit (capital and operations), capacity, and pedestrian and bike mobility projects. These projects consider regional and statewide transportation performance targets. Projects in the April 2025 list were either rolled over from FY 2026, submitted during the 2024 call for projects, or included in the MDOT 5-Year Plan. Additional projects may be submitted to the TIP via future administrative modifications or amendments.
View the Transportation Improvement Program Projects Map
The FY 26-29 TIP began on 10/1/2025. See the 2026 Amendment Calendar and past and present amendments below.
FY 26-29 TIP Amendment 25:5 (Full)
- See the 2025 TIP/RTP Amendment Schedule.
- This amendment accepts changes for FY 2026-2029 projects.
- Amendments to line-item projects were due 9/12/25.
- Cost-only change requests were due: 11/3/25.
- This Amendment must undergo the following reviews:
- Public review: 11/13/25 – 12/5/25
- TCC review: 11/20/25
- Executive Committee review: 12/5/25
- MDOT review and Submittal: week of 12/8/25
- FHWA review: approximately week of 12/15/25
Current TIP Cycle: FY 2026-2029
FY 26-29 TIP and companion documents approved by the SEMCOG Executive Committee on 4/25/25:
The FY 26-29 TIP underwent the following reviews during development and adoption:
- MDOT, FHWA and FTA: July-October 2025
- Public Review: 3/25/25-4/25/25
- SEMCOG Transportation Coordinating Council (TCC): 4/17/25
- SEMCOG Executive Committee: 4/25/25
Previous TIP Cycle: FY 2023-2026
FY 2023-2026 TIP Documents:
Past Amendments
Obligation Reports
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2025
This report lists the federal-aid highway and transit projects obligated in the seven-county SEMCOG region in fiscal year (FY) 2023 (10/01/23-09/30/24). “Obligated” means that the federal government has contractually agreed to pay the federal share of the obligated project. Federal share varies depending on the funding source and type of project, but is usually around 80 percent of total project costs. All projects using federal-aid highway or transit funding must be in the approved Transportation Improvement Program (TIP). In large urbanized areas, federal-aid transportation planning is managed by a federal and state approved metropolitan planning organization, or MPO. The MPO for the region that includes Livingston, Macomb, Monroe, Oakland, St. Clair, Washtenaw, and Wayne counties is SEMCOG, the Southeast Michigan Council of Governments.
Obligation Report Abbreviations
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2024
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2023
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2022
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2021
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2020
Other TIP Reports and Information
List of Federal-Aid Highway and Transit Projects Obligated in the SEMCOG Region, FY 2024
This report lists the federal-aid highway and transit projects obligated in the seven-county SEMCOG region in fiscal year (FY) 2023 (10/01/23-09/30/24). “Obligated” means that the federal government has contractually agreed to pay the federal share of the obligated project. Federal share varies depending on the funding source and type of project, but is usually around 80 percent of total project costs. All projects using federal-aid highway or transit funding must be in the approved Transportation Improvement Program (TIP). In large urbanized areas, federal-aid transportation planning is managed by a federal and state approved metropolitan planning organization, or MPO. The MPO for the region that includes Livingston, Macomb, Monroe, Oakland, St. Clair, Washtenaw, and Wayne counties is SEMCOG, the Southeast Michigan Council of Governments.
RTP Policy codes for TIP Projects
Southeast Michigan Federal Transportation Planning Certification Review: Final Report
Online Resource Library: Federal-aid Essentials for Local Public Agencies