Why do engineers love bridges? They're outstanding in their field.
Why do engineers love bridges? They're outstanding in their field.
Infrastructure Grade
Infrastructure Report Card
5.3% of bridges in poor condition
Total Bridges
19,542
Poor Condition
1,043(5.3%)
Avg Bridge Age
48 yrs
Trend
Stable
| Metric | Indiana | National Avg | Trend |
|---|---|---|---|
| % Poor Condition | 5.3% | 6.7% | Stable |
| vs. National Average | -1.4 pts | -- | -- |
| Average Bridge Age | 48 yrs | 48 yrs | -- |
| Good or Better | 9,305(47.6%) | -- | -- |
Grade Scale
Percentage of bridges in poor condition over time. The dashed line shows the national average for comparison.
Total Bridges
19,542
Poor Condition
1,043(5.3%)
Average Age
48 yrs
Daily Crossings
101.9M
Good or Better
9,305(47.6%)
These bridges have at least one major component rated "5" (Fair) — one step above the poor threshold. Sorted by daily traffic to highlight highest-impact structures at risk.
| Bridge | Location | Deck | Super | Sub | Daily Traffic |
|---|---|---|---|---|---|
| I-70 | Marion County | 5 | 6 | 6 | 137,908 |
| I-65 | Marion County | 5 | 6 | 6 | 137,773 |
| I-70 | Marion County | 6 | 6 | 5 | 111,240 |
| I-70 | Marion County | 7 | 5 | 7 | 109,416 |
| I-465 SB | Marion County | 5 | 6 | 7 | 101,476 |
| I-70 | Marion County | 7 | 5 | 6 | 98,119 |
| I-465 WB | Marion County | 8 | 5 | 5 | 92,625 |
| I-80 I-94 WB | Lake County | 6 | 8 | 5 | 88,825 |
| I-465 SB | Marion County | 7 | 5 | 6 | 83,312 |
| I-64 | Floyd County | 5 | 6 | 6 | 80,030 |
| I-465 NB | Marion County | 7 | 5 | 5 | 79,983 |
| CR 100 EHALL-BAKER | Boone County | 7 | 5 | 6 | 73,132 |
| I-70 EB | Hendricks County | 5 | 6 | 7 | 65,674 |
| I-465 EB | Hamilton County | 5 | 5 | 6 | 64,657 |
| I-465 WB | Hamilton County | 5 | 5 | 6 | 64,657 |
The 10 bridges in poorest condition, ranked by lowest sufficiency rating.
over FLATROCK RIVER
over WHITE RIVER/LOCAL ROAD
over BUSSERON CREEK
over BRANCH OF MISSISSINEWA
over PIPE CREEK
over BUSSERON CREEK
over LONGPOND AND WHITE RIVER
over BIG WALNUT CREEK
over CUP CREEK
over MILL CREEK
States with similar infrastructure profiles, ranked by percentage of bridges in poor condition.
Grading: Grades are based on the percentage of bridges classified as "poor condition." A bridge is in poor condition when at least one major component (deck, superstructure, or substructure) is rated 4 or below on the NBI 0-9 scale.
Data Source: Federal Highway Administration (FHWA) National Bridge Inventory (NBI). Data is updated annually. BridgeStats is not affiliated with or endorsed by the FHWA.
Watchlist Criteria: Bridges with any component rated "5" (Fair) are one step from the poor threshold of 4 and are flagged for monitoring. These bridges are not yet in poor condition but may deteriorate without maintenance.