State Highway Infrastructure Report - Michigan
The information below summarizes the TPM Highway Infrastructure performance measures, which include four pavement condition measures and two bridge condition measures. Per 23 CFR 490, State Departments of Transportation (DOTs) are required to establish 2- and 4-year targets for these measures. The targets should represent the anticipated condition/performance at the mid-point and end of the 4-year performance period. State DOTs establish targets at the beginning of each 4-year performance period, and report on progress every two years. When establishing targets, State DOTs have the flexibility to use the methodology they deem most appropriate. FHWA encourages States to review data sets and trends and consider factors that may affect targets. Performance targets should be data-driven, realistic, and attainable and should align with the performance management framework and legislative intent.
The targets and discussion of basis for targets, optional adjustment of targets, progress, and planned activities were provided by the State DOT in its most recent biennial performance report. FHWA has not edited this information. It is provided to help bring context to the State DOT’s performance targets and progress. The data in the tables and graphs is from the biennial performance report or HPMS data submittal as noted below each measure summary. Any questions about the information should be directed to the State DOT.
Data reported by State DOTs was collected in the previous year, representing the condition/performance at the time of collection. Thus, in the tables and graphs below, FHWA labels data with the year representing the condition/performance, rather than the year the data was reported. The same thing is done for the targets--the year represents when the corresponding actual condition/performance data will be collected, not reported. More Information.
Significant Progress Determination
FHWA determines significant progress for these measures after the mid-point and end of each performance period. A State has met or made significant progress toward target achievement if “actual” condition/performance is equal to or better than the established two-year target or “actual” condition/performance is better than baseline performance 23 CFR 490.109(e). As provided in 23 CFR 490.107(b)(2)(ii)(A), baseline condition/performance is derived from the latest data collected through the beginning date of the performance period. FHWA will classify the assessment of progress toward the achievement of an individual 2-year or 4-year target as “progress not determined” if a State provides the extenuating circumstance information required in 23 CFR 490.109(e)(5), and FHWA accepts the information.
Most recent Significant Progress Determination for the Infrastructure measures
Most Recent Significant Progress Determination for all applicable measures
Interstate Pavement in Good Condition
-
Interstate Pavement in Good Condition 2021 2022 2023 2024 2025 Condition/Performance -- -- -- -- Target -- -- 59.2 -- 56.7
Interstate Pavement in Good Condition
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
The 2021 HPMS Pavement Data Quality Summary reported 70.4 percent of interstate pavements were classified in good condition. In coordination with Michigan MPOs, MDOT analyzes historical Interstate pavement trends and current pavement performance. Using the best currently available forecasting methods and tools, MDOT analyzes a predicted rate of deterioration for NHS segments. MDOT then performs a review of respective projects on the NHS system identified in the current five-year program informed by TAMP investment strategies constrained to available revenue. Each project is reviewed for scope of work and the current condition to develop an expected condition rating upon completion of work. This analysis is then summarized into statewide 2- and 4-year predicted conditions.-
Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 HPMS Data Submittal
Interstate Pavement in Poor Condition
-
Interstate Pavement in Poor Condition 2021 2022 2023 2024 2025 Condition/Performance -- -- -- -- Target -- -- 5.0 -- 5.0
Interstate Pavement in Poor Condition
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
The 2021 HPMS Pavement Data Quality Summary reported 1.8 percent of interstate pavements were classified in poor condition. In coordination with Michigan MPOs, MDOT analyzes historical Interstate pavement trends and current pavement performance. Using the best currently available forecasting methods and tools, MDOT analyzes a predicted rate of deterioration for NHS segments. MDOT then performs a review of respective projects on the NHS system identified in the current five-year program informed by TAMP investment strategies constrained to available revenue. Each project is reviewed for scope of work and the current condition to develop an expected condition rating upon completion of work. This analysis is then summarized into statewide 2- and 4-year predicted conditions.-
Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 HPMS Data Submittal
Non-Interstate National Highway System (NHS) Pavement in Good Condition
-
Non-Interstate National Highway System (NHS) Pavement in Good Condition 2021 2022 2023 2024 2025 Condition/Performance 41.6 -- -- -- -- Target -- -- 33.1 -- 33.1
Non-Interstate National Highway System (NHS) Pavement in Good Condition
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
The 2021 HPMS Pavement Data Quality Summary reported 41.6 percent of Non-Interstate NHS pavements were classified in good condition. In coordination with Michigan MPOs, MDOT analyzes historical Non-Interstate NHS pavement trends and current pavement performance. Using the best currently available forecasting methods and tools, MDOT analyzes a predicted rate of deterioration for NHS segments. MDOT then performs a review of respective projects on the NHS system identified in the current five-year program informed by TAMP investment strategies constrained to available revenue. Each project is reviewed for scope of work and the current condition to develop an expected condition rating upon completion of work. This analysis is then summarized into statewide 2- and 4-year predicted conditions.-
Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 HPMS Data Submittal
Non-Interstate National Highway System (NHS) Pavement in Poor Condition
-
Non-Interstate National Highway System (NHS) Pavement in Poor Condition 2021 2022 2023 2024 2025 Condition/Performance 8.9 -- -- -- -- Target -- -- 10.0 -- 10.0
Non-Interstate National Highway System (NHS) Pavement in Poor Condition
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
The 2021 HPMS Pavement Data Quality Summary reported 8.9 percent of Non-Interstate NHS pavements were classified in poor condition. In coordination with Michigan MPOs, MDOT analyzes historical Non-Interstate NHS pavement trends and current pavement performance. Using the best currently available forecasting methods and tools, MDOT analyzes a predicted rate of deterioration for NHS segments. MDOT then performs a review of respective projects on the NHS system identified in the current five-year program informed by TAMP investment strategies constrained to available revenue. Each project is reviewed for scope of work and the current condition to develop an expected condition rating upon completion of work. This analysis is then summarized into statewide 2- and 4-year predicted conditions.-
Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 HPMS Data Submittal
National Highway System (NHS) Bridges in Good Condition
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National Highway System (NHS) Bridges in Good Condition 2021 2022 2023 2024 2025 Condition/Performance 22.1 -- -- -- -- Target -- -- 15.2 -- 12.8
National Highway System (NHS) Bridges in Good Condition
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
NHS bridge projects identified in the MDOT current five-year plan were sorted by the scheduled letting date. It was assumed that projects would require one construction season to be completed and inspected. Projects let before October 2022 were included in the two-year target. Projects let before October of 2024 were included in the four-year. Each project was reviewed for the scope of work and the current condition of each of the major components. An expected condition rating upon completion of work for each bridge was determined. Preservation work may not have increased the rating however, it would prevent the bridge from being assumed to deteriorate further. All trunkline projects and local agency projects within the Local Bridge Program were included in the analysis. More than 18% of the NHS deck area statewide was programmed for work in 2021 and 2022, and more than 13% is programmed between 2023 and 2024. The higher percent deck area programmed for this performance period is attributed to the increased funding through the Rebuilding Michigan Bond Program and the Infrastructure Investment Jobs Act. Starting from the condition reported with the NBI submittal in 2022, the expected improved condition for bridges currently programmed within MDOT’s Five-Year Plan and the reduced condition from deterioration for all other bridges was summarized into expected condition at the end of 2023 and 2025. The deck areas in good, fair, and poor condition at the end of each year were summarized. To account for uncertainty, the amount of deck area in good condition was conservatively reduced by 1% in both the 2-year and 4-year targets.-
Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 NBI Data Submittal
National Highway System (NHS) Bridges in Poor Condition
-
National Highway System (NHS) Bridges in Poor Condition 2021 2022 2023 2024 2025 Condition/Performance 7.0 -- -- -- -- Target -- -- 6.8 -- 5.8
National Highway System (NHS) Bridges in Poor Condition
- Basis for Targets
- 2-yr Progress
- Basis for 4-yr Target Adjustment
- 4-yr Planned Activities
- 4-yr Progress
The projects included within MDOT’s Five-Year Plan that have bridges that carry the NHS were identified. The projects were sorted by the scheduled letting date. It was assumed that projects would require one construction season to be completed and inspected. Projects let before October 2022 were included in the two-year Target. Projects let before October of 2024 were included in the four-year Target. Each project was reviewed for the scope of work and the current condition of each of the major components. An expected condition rating upon completion of work for each bridge was determined. Preservation work may not have increased the rating however, it would prevent the bridge from being assumed to deteriorate further. All trunkline projects and local agency projects within the Local Bridge Program were included in the analysis. More than 18% of the NHS deck area statewide was programmed for work in 2021 and 2022, and more than 13% is programmed between 2023 and 2024. The higher percent deck area programmed for this performance period is attributed to the increased funding through the Rebuilding Michigan Bond Program and the Infrastructure Investment Jobs Act. Starting from the condition reported with the NBI submittal in 2022, the expected improved condition for bridges currently programmed within MDOT’s Five-Year Plan and the reduced condition from deterioration for all other bridges was summarized into expected condition at the end of 2023 and 2025. To account for uncertainty, the amount of deck area in poor condition was conservatively increased by 1% in both the 2-year and 4-year targets.-
Data Sources:
Michigan 2022 Biennial Performance Report
Michigan 2022 NBI Data Submittal
Significant Progress Determination
This table shows FHWA’s most recent determination for the Infrastructure performance measures.
PLEASE NOTE: Each State’s performance target assessment is based on its own State-specific target methodology and program philosophy. Therefore, conclusions should not be drawn based only on the information in the Significant Progress Determination Results table. FHWA understands that each State’s program is unique and therefore does not prescribe a methodology for States to set targets. States have the flexibility to use the methodology they deem most appropriate when setting their performance targets.
| Measure Area | Measures | Baseline | Target | Actual | Better than Baseline? |
Achieved Target? | Made Significant Progress? |
Consequences [23 CFR 490.109(f)] |
|
|---|---|---|---|---|---|---|---|---|---|
| The condition of pavements on the Interstate System | Percentage of pavements of the Interstate System in Good condition | 63.61 | 47.8 | I/D* | No | No | Progress Not Determined | None | |
| Percentage of pavements of the Interstate System in Poor condition | 4.62 | 10.0 | I/D* | No | No | Progress Not Determined | |||
| The condition of pavements on the National Highway System (NHS) (excluding the Interstate) | Percentage of pavements of the non-Interstate NHS in Good condition | Based only on IRI | 49.2 | 43.7 | 54.0 | Yes | Yes | Yes | None |
| Based on Full Distress + IRI | --- | --- | --- | --- | --- | ||||
| Percentage of pavements of the non-Interstate NHS in Poor condition | Based only on IRI | 18.9 | 24.6 | 16.7 | Yes | Yes | Yes | ||
| Based on Full Distress + IRI | --- | --- | --- | --- | --- | ||||
| The condition of bridges on the National Highway System | Percentage of NHS bridges classified as in Good condition | 32.7 | 23.0 | 22.1 | No | No | No | Additional Reporting | |
| Percentage of NHS bridges classified as in Poor condition | 9.8 | 8.0 | 7.0 | Yes | Yes | Yes | |||
* Insufficient Data denoted by "I/D"
1 The 2-year condition/performance, in 2020 Mid Performance Period Progress Report, as the baseline condition/performance, as required in 23 CFR 490.105(e)(7)(iii).
2 Ibid.