Montgomery County Bridge Report Card
Montgomery County scores 92 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Montgomery County, Illinois
Montgomery County has 261 bridges in the National Bridge Inventory, with 10 rated poor and 0 rated scour-critical. Its poor-condition share of 3.8% is at or below the 9.5% statewide average. Poor-condition bridges carry about 1,875 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Montgomery County a Bridge Condition Exposure Score of 92/100 (A). The county has 261 bridges in the National Bridge Inventory, including 10 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 1,875 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 | 3.8% | 7.7 |
| Poor-condition traffic exposure | 25 | 0.6% of measured traffic | 0.4 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 48 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 332,450 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 | 3.8% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 48 years |
| Poor-Condition Traffic Exposure | 1,875 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Montgomery County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Ms-1070 Seward ST over Ditch | Poor condition + traffic exposure | Poor | 1,350 | 1920 |
| Tr 408 over Creek | Poor condition + traffic exposure | Poor | 150 | 1900 |
| Tr 199 over Stream | Poor condition + traffic exposure | Poor | 75 | 1900 |
| Tr 314 over Mdl Fk Shoal CR | Poor condition + traffic exposure | Poor | 75 | 1969 |
| Tr 457 over Dry Fork Crk. | Poor condition + traffic exposure | Poor | 50 | 1954 |
| Tr 17 over I-55 | Poor condition + traffic exposure | Poor | 50 | 1970 |
| Tr 0193 over Shop Creek | Poor condition + traffic exposure | Poor | 50 | 1975 |
| Tr 167 A over Fawn Creek | Poor condition + traffic exposure | Poor | 25 | 1900 |
| Tr 374 over Hurricane CR | Poor condition + traffic exposure | Poor | 25 | 1900 |
| Tr 225 over Hurricane CR | Poor condition + traffic exposure | Poor | 25 | 1900 |
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.