Saline County Bridge Report Card
Saline County scores 89 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Saline County, Illinois
Saline County has 185 bridges in the National Bridge Inventory, with 8 rated poor and 0 rated scour-critical. Its poor-condition share of 4.3% is at or below the 9.5% statewide average. Poor-condition bridges carry about 10,235 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Saline County a Bridge Condition Exposure Score of 89/100 (B). The county has 185 bridges in the National Bridge Inventory, including 8 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 10,235 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 | 4.3% | 8.6 |
| Poor-condition traffic exposure | 25 | 3.3% of measured traffic | 2.5 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 40 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 307,610 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 | 4.3% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 40 years |
| Poor-Condition Traffic Exposure | 10,235 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Saline County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Ill 34 & 145 over Stream | Poor condition + traffic exposure | Poor | 4,100 | 1924 |
| Ill 13 over Mid Fork Saline Riv. | Poor condition + traffic exposure | Poor | 3,350 | 1972 |
| US 45 over Stream | Poor condition + traffic exposure | Poor | 2,000 | 1925 |
| Tr 119 over Stream | Poor condition + traffic exposure | Poor | 300 | 1915 |
| Fas 1897-ch 25 over Stream | Poor condition + traffic exposure | Poor | 225 | 1988 |
| Ch 4 over Trib To Rector Creek | Poor condition + traffic exposure | Poor | 175 | 1983 |
| Ch 6 over Indian Creek | Poor condition + traffic exposure | Poor | 75 | 1992 |
| Tr 291 over Br Pond Creek | Poor condition + traffic exposure | Poor | 10 | 1987 |
| Fap 332-us 45 over Drainage Ditch | High traffic | Good | 10,900 | 2007 |
| US 45 over Mid Fork Saline Riv. | High traffic | Good | 10,200 | 1982 |
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.