Transportation Improvement Program (TIP)
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.
FY 2026-2029 TIP Development
Southeast Michigan is transitioning from the close of the current 2023-2026 TIP to the beginning of the new 2026-2029 TIP. FY 2026 projects adopted in the 2023-2026 TIP will also be amended into the 2026-2029 TIP for consistency and to ensure timely delivery of projects. The proposed 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 are proposed with consideration to meeting regional and statewide transportation performance targets. Projects in this list were either rolled over from FY 2026, submitted during the 2024 call for projects, or included in the MDOT 5-Year Plan. It is customary for additional projects to be submitted to the TIP via future administrative modifications or amendments.
The FY 26-29 TIP must undergo the following reviews:
- Public Review: 3/25/25-4/25/25 [complete]
- Transportation Coordinating Council (TCC): 4/17/25 [complete]
- Executive Committee: 4/25/25 [complete]
- MDOT, FHWA and FTA (Summer 2025)
The FY 26-29 TIP is anticipated to take effect 10/1/2025.
FY 26-29 TIP and companion documents approved by the SEMCOG Executive Committee on 4/25/25:
View the Transportation Improvement Program Projects Map
FY 2023-2026 TIP and Amendments
Approved FY 2023-2026 TIP Documents:
- Approved FY 2023-2026 TIP Project List (Approved Amendment 25-1 (Full), 2/2025)
- FY 2023-2026 Transportation Improvement Program Narrative
- Air Quality Conformity Analysis (TIP Adoption Report, 6/2022)
Background
- 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.
See the 2025* TIP/RTP Amendment Schedule.
*NOTE: Because of development of the FY26-29 TIP and its overlap with the final amendments for the FY23-26 TIP calendar, this 2025 TIP Amendment calendar is a one-time schedule of amendments. The 2026 calendar will return to the usual Full and GPA/Cost Only TIP amendment schedule.
FY 23-26 TIP Amendment 25:3 (Full)
- This amendment accepted changes for FY 2025 projects ONLY.
- Amendments to line-item projects were due 5/2/25. [complete]
- Cost-Only Change Requests were due: 6/30/25. [complete]
- Amendment Documents:
- This Amendment must undergo the following reviews:
- Public review: 7/10/25 – 7/25/25 [complete]
- TCC review: 7/17/25 [complete]
- Executive Committee review: 7/25/25 [complete]
- MDOT review and Submittal: week of 7/28/25
- FHWA review: approximately week of 8/4/25
FY 26-29 TIP Amendment 25:4 (Full)
- This amendment accepts changes for FY 2026 projects ONLY.
- Amendments to line-item projects are due 8/1/25.
- Cost-Only Change Requests were due: 8/25/25.
- This Amendment must undergo the following reviews:
- Public review: 9/11/25 – 9/26/25
- TCC review: 9/18/25
- Executive Committee review: 9/26/25
- MDOT review and Submittal: week of 10/6/25
- FHWA review: approximately week of 10/13/25
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
Obligation Report Abbreviations
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
Fiscal Year 2019 TIP Survey
Southeast Michigan Federal Transportation Planning Certification Review: Final Report
Online Resource Library: Federal-aid Essentials for Local Public Agencies