State Highway Infrastructure Report - Illinois
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 65.7 -- -- -- -- Target -- -- 65.0 -- 66.0
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 historical trends approach was used to determine the 2- and 4-year targets. In addition, IDOT took into account the miles of pavement improvements in the current Annual and MYP programs and the time required to complete and report on the updated values for the 2024 and 2026 targets. IDOT noted that the data reported in 2024 will be based on conditions evaluated in 2023. Therefore, projects initiated not later than 2022 could have an impact on the 2024 targets. IDOT also took a conservative approach for setting targets for 2024 due to the delay in construction projects in Northern Illinois due to the International Union of Operating Engineers strike. The strike affected production in quarries for seven weeks, ending July 25, 2022. While the projects that were delayed will get constructed, they may not be completed in time to be inspected in 2023 and therefore reported in 2024. The Department based the new targets on the historical trend, Annual and MYP data, and timeframes of completing and reporting of new data.-
Data Sources:
Illinois 2022 Biennial Performance Report
Illinois 2022 HPMS Data Submittal
Interstate Pavement in Poor Condition
-
Interstate Pavement in Poor Condition 2021 2022 2023 2024 2025 Condition/Performance 0.4 -- -- -- -- Target -- -- 1.0 -- 0.7
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 historical trends approach was used to determine the 2- and 4-year targets. In addition, IDOT took into account the miles of pavement improvements in the current Annual and MYP programs and the time required to complete and report on the updated values for the 2024 and 2026 targets. IDOT noted that the data reported in 2024 will be based on conditions evaluated in 2023. Therefore, projects initiated not later than 2022 could have an impact on the 2024 targets. IDOT also took a conservative approach for setting targets for 2024 due to the delay in construction projects in Northern Illinois due to the International Union of Operating Engineers strike. The strike affected production in quarries for seven weeks, ending July 25, 2022. While the projects that were delayed will get constructed, they may not be completed in time to be inspected in 2023 and therefore reported in 2024. The Department based the new targets on the historical trend, Annual and MYP data, and timeframes of completing and reporting of new data.-
Data Sources:
Illinois 2022 Biennial Performance Report
Illinois 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 29.5 -- -- -- -- Target -- -- 29.0 -- 30.0
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 historical trends approach was used to determine the 2- and 4-year targets. In addition, IDOT took into account the miles of pavement improvements in the current Annual and MYP programs and the time required to complete and report on the updated values for the 2024 and 2026 targets. IDOT noted that the data reported in 2024 will be based on conditions evaluated in 2023. Therefore, projects initiated not later than 2022 could have an impact on the 2024 targets. IDOT also took a conservative approach for setting targets for 2024 due to the delay in construction projects in Northern Illinois due to the International Union of Operating Engineers strike. The strike affected production in quarries for seven weeks, ending July 25, 2022. While the projects that were delayed will get constructed, they may not be completed in time to be inspected in 2023 and therefore reported in 2024. The Department based the new targets on the historical trend, Annual and MYP data, and timeframes of completing and reporting of new data.-
Data Sources:
Illinois 2022 Biennial Performance Report
Illinois 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 8.0 -- -- -- -- Target -- -- 8.9 -- 8.5
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 historical trends approach was used to determine the 2- and 4-year targets. In addition, IDOT took into account the miles of pavement improvements in the current Annual and MYP programs and the time required to complete and report on the updated values for the 2024 and 2026 targets. IDOT noted that the data reported in 2024 will be based on conditions evaluated in 2023. Therefore, projects initiated not later than 2022 could have an impact on the 2024 targets. IDOT also took a conservative approach for setting targets for 2024 due to the delay in construction projects in Northern Illinois due to the International Union of Operating Engineers strike. The strike affected production in quarries for seven weeks, ending July 25, 2022. While the projects that were delayed will get constructed, they may not be completed in time to be inspected in 2023 and therefore reported in 2024. The Department based the new targets on the historical trend, Annual and MYP data, and timeframes of completing and reporting of new data.-
Data Sources:
Illinois 2022 Biennial Performance Report
Illinois 2022 HPMS Data Submittal
National Highway System (NHS) Bridges in Good Condition
-
National Highway System (NHS) Bridges in Good Condition 2021 2022 2023 2024 2025 Condition/Performance 22.8 -- -- -- -- Target -- -- 18.5 -- 15.8
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
The historical trends approach was used to determine the 2- and 4-year targets. IDOT also took into account the square footage of structure improvements in the current Annual and MYP program and the time required to complete and report on the updated values for the 2024 and 2026 targets. IDOT noted that the data reported in 2024 will be based on conditions inspected and reported in 2023 and therefore projects initiated not later than 2022 could have an impact on the 2024 targets. Replacing a bridge is the only treatment that increases the overall NBI rating to Good. The Department based the new targets on the historical trend, Annual and MYP data, and timeframes of completing and reporting of new data.-
Data Sources:
Illinois 2022 Biennial Performance Report
Illinois 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 12.4 -- -- -- -- Target -- -- 12.4 -- 12.0
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 historical trends approach was used to determine the 2- and 4-year targets. IDOT also took into account the square footage of structure improvements in the current Annual and MYP program and the time required to complete and report on the updated values for the 2024 and 2026 targets. IDOT noted that the data reported in 2024 will be based on conditions inspected and reported in 2023 and therefore projects initiated not later than 2022 could have an impact on the 2024 targets. The Department based the new targets on the historical trend, Annual and MYP data, and timeframes of completing and reporting of new data.-
Data Sources:
Illinois 2022 Biennial Performance Report
Illinois 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 | 61.11 | 61.0 | 65.7 | Yes | Yes | Yes | None | |
| Percentage of pavements of the Interstate System in Poor condition | 0.72 | 2.0 | 0.4 | Yes | Yes | Yes | |||
| 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 | 37.6 | --- | 43.3 | Yes | --- | Yes | None |
| Based on Full Distress + IRI | --- | 21.0 | 29.5 | --- | Yes | ||||
| Percentage of pavements of the non-Interstate NHS in Poor condition | Based only on IRI | 19.4 | --- | 18.6 | Yes | --- | Yes | ||
| Based on Full Distress + IRI | --- | 9.0 | 8.0 | --- | Yes | ||||
| The condition of bridges on the National Highway System | Percentage of NHS bridges classified as in Good condition | 29.1 | 23.5 | 22.8 | No | No | No | Additional Reporting | |
| Percentage of NHS bridges classified as in Poor condition | 11.6 | 15.5 | 12.4 | No | Yes | Yes | |||
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.