Greene County Bridge Report Card
Greene County scores 79 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Greene County, Illinois
Greene County has 162 bridges in the National Bridge Inventory, with 11 rated poor and 0 rated scour-critical. Its poor-condition share of 6.8% is at or below the 9.5% statewide average. Poor-condition bridges carry about 7,985 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Greene County a Bridge Condition Exposure Score of 79/100 (C). The county has 162 bridges in the National Bridge Inventory, including 11 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 7,985 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 | 6.8% | 13.6 |
| Poor-condition traffic exposure | 25 | 9.8% of measured traffic | 7.4 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 45 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 81,265 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 | 6.8% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 45 years |
| Poor-Condition Traffic Exposure | 7,985 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Greene County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| US 67 over Macoupin Creek | Poor condition + traffic exposure | Poor | 4,750 | 1969 |
| Il-16 & 100 over Illinois River & Tr-423 | Poor condition + traffic exposure | Poor | 2,250 | 1930 |
| Fas 740 Ch 6 over Bear Creek | Poor condition + traffic exposure | Poor | 250 | 2006 |
| Fas 1739 over Hurricane Creek | Poor condition + traffic exposure | Poor | 200 | 1994 |
| Mss 5090a over Seminary Ck | Poor condition + traffic exposure | Poor | 175 | 1901 |
| Tr 258 over Stream | Poor condition + traffic exposure | Poor | 150 | 1901 |
| Tr 240 over Bear Creek | Poor condition + traffic exposure | Poor | 50 | 1977 |
| Tr-48 over Apple Creek | Poor condition + traffic exposure | Poor | 50 | 1984 |
| Tr 0267 over Sand Creek | Poor condition + traffic exposure | Poor | 50 | 1985 |
| Tr 251 over Branch Taylor Ck. | Poor condition + traffic exposure | Poor | 50 | 1990 |
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.