Montgomery County Bridge Report Card
Montgomery County scores 88 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Montgomery County, Indiana
Montgomery County has 252 bridges in the National Bridge Inventory, with 8 rated poor and 5 rated scour-critical. Its poor-condition share of 3.2% is at or below the 5.3% statewide average. Poor-condition bridges carry about 11,796 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Montgomery County a Bridge Condition Exposure Score of 88/100 (B). The county has 252 bridges in the National Bridge Inventory, including 8 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 11,796 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 3.2% | 6.3 |
| Poor-condition traffic exposure | 25 | 2.0% of measured traffic | 1.5 |
| Scour-critical bridge share | 20 | 2.0% | 4.0 |
| Average age vs national baseline | 10 | 43 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 576,842 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 3.2% |
| State Poor-Condition Share | 5.3% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 2.0% |
| Average Bridge Age | 43 years |
| Poor-Condition Traffic Exposure | 11,796 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Montgomery County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| SR 32 over Walnut Fork | Poor condition + traffic exposure | Poor | 5,670 | 1940 |
| SR 32 over Mill Creek | Poor condition + traffic exposure | Poor | 3,556 | 1920 |
| SR 234 over Raccoon Creek | Poor condition + traffic exposure | Poor | 1,730 | 1941 |
| CR 500s over Sugar Creek/unnamed RD | Poor condition + traffic exposure | Poor | 320 | 1972 |
| CR 700w over North Fork Of Coal Creek | Poor condition + traffic exposure | Poor | 200 | 1967 |
| W Fall Creek RD over Branch Of Sugar Creek | Poor condition + traffic exposure | Poor | 150 | 1974 |
| CR 300n over Black Creek | Poor condition + traffic exposure | Poor | 100 | 1987 |
| CR 750e over Branch Of Raccoon Creek | Poor condition + traffic exposure | Poor | 70 | 1996 |
| I-74 EB over Little Sugar Creek | Scour-critical foundation rating | Good | 17,400 | 1964 |
| I-74 WB over Walnut Fork | Scour-critical foundation rating | Fair | 15,924 | 1964 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.