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Highway Program & Non-Capital Uses

Public Act 51 of 1951 (Act 51) mandates how transportation funds are distributed and spent between MDOT and local entities. The intent of Act 51 is to distribute approximately 25 percent of federal aid to local jurisdictions for use on federal aid-eligible roads, with MDOT remaining responsible for ensuring federal regulations are followed and funds are managed appropriately. MDOT complies with this provision in an oversight role at various points throughout a project, while local agencies are responsible for planning scoping and design, as well as testing and construction engineering services. Local agencies ultimately deliver more than 500 federal-aid projects annually, with an average project cost of $500,000.

The table below displays the investment strategy for FY 2024-2028 for the Highway Capital Program at $11.15 billion. This total reflects investments for pre-building activity (i.e., scoping, design, environmental clearance, and right of way (ROW) acquisition) and building activities.

2024-2028 Highway Program Investment, Including Routine Maintenance (in millions)

Investment table showing the 2023-2027 Highway Program Investment, Including Routine Maintenance (in millions).

*Including Trunkline Modernization.
**Includes $40 million in FY 24 and $600 million total from FY 24 to 2028 for ongoing Blue Water Bridge Plaza work accounted for in previous years.

The figure below illustrates Highway Program investments over the total five-year period, with system preservation, outlined in red, being funded by both the regular highway program as well as the addition of RBMP bond funds up through 2025. Routine maintenance is also expected to increase year by year.

 A graph showing the Highway Program Investment for FY 2024-2028.

This level of investment will provide Michigan travelers with approximately 1,244 miles of improved roads per year over the next five years, extending the life of approximately 620 miles of pavement each year through the capital preventive maintenance (CPM) program and 33 miles per year with non-freeway resurfacing. MDOT also will manage its bridge assets with repairs to 121 bridges per year.

MDOT allocates pavement preservation funding by formula to its seven regions between the Road Improvements and Rebuilding, Non-Freeway Resurfacing, and Freeway Resurfacing programs. The formula is updated annually with current pavement condition, average daily traffic, regional costs, and eligible lane miles.

For the Bridge program, funding is distributed to MDOT regions through a bridge preservation allocation formula that uses the deck area of bridges in each National Bridge Inventory (NBI) condition. Funding is split into investment targets for replacement, repair, and preventive maintenance work.