Richland County Bridge Report Card
Richland County scores 92 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Richland County, Illinois
Richland County has 151 bridges in the National Bridge Inventory, with 6 rated poor and 0 rated scour-critical. Its poor-condition share of 4.0% is at or below the 9.5% statewide average. Poor-condition bridges carry about 280 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Richland County a Bridge Condition Exposure Score of 92/100 (A). The county has 151 bridges in the National Bridge Inventory, including 6 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 280 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 | 4.0% | 7.9 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.2 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 46 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 95,320 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 | 4.0% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 46 years |
| Poor-Condition Traffic Exposure | 280 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Richland County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Tr-211 over E Fk Bonpas Creek | Poor condition + traffic exposure | Poor | 100 | 1909 |
| Tr-120 over Creek | Poor condition + traffic exposure | Poor | 50 | 1909 |
| Tr-266 over Paul Creek | Poor condition + traffic exposure | Poor | 50 | 1909 |
| Tr-3 over Hurricane Creek | Poor condition + traffic exposure | Poor | 35 | 1909 |
| Tr-261 over Bonpas Creek | Poor condition + traffic exposure | Poor | 25 | 1909 |
| Tr-19 over Long Branch | Poor condition + traffic exposure | Poor | 20 | 1909 |
| Fap-116 (ill-130) over Stream | High traffic | Fair | 9,750 | 1977 |
| Fap-116 (ill-130) over East Fork Fox River | High traffic | Fair | 5,800 | 1927 |
| Fap-116 (ill-130) over Long Br Fox River | High traffic | Fair | 4,850 | 1983 |
| Fap 116(il 130) over Little Fox River | High traffic | Good | 4,500 | 1999 |
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.