Morgan County Bridge Report Card
Morgan County scores 82 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Morgan County, Illinois
Morgan County has 234 bridges in the National Bridge Inventory, with 17 rated poor and 1 rated scour-critical. Its poor-condition share of 7.3% is at or below the 9.5% statewide average. Poor-condition bridges carry about 12,870 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Morgan County a Bridge Condition Exposure Score of 82/100 (B). The county has 234 bridges in the National Bridge Inventory, including 17 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 12,870 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 | 7.3% | 14.5 |
| Poor-condition traffic exposure | 25 | 3.3% of measured traffic | 2.5 |
| Scour-critical bridge share | 20 | 0.4% | 0.9 |
| Average age vs national baseline | 10 | 42 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 386,225 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 | 7.3% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.4% |
| Average Bridge Age | 42 years |
| Poor-Condition Traffic Exposure | 12,870 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Morgan County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fau 8173 College A over Mauvaise Terre CR | Poor condition + traffic exposure | Poor | 2,150 | 1975 |
| S Main ST over Town Brook | Poor condition + traffic exposure | Poor | 7,600 | 1985 |
| East ST over Town Brook | Poor condition + traffic exposure | Poor | 900 | 1979 |
| Fas 1612 over Mauvaise Terre CR | Poor condition + traffic exposure | Poor | 650 | 1976 |
| Tr 214 over Mauvaise Terre Creek | Poor condition + traffic exposure | Poor | 450 | 1969 |
| Ch 2 over Mauvaise Terre CR | Poor condition + traffic exposure | Poor | 300 | 1959 |
| Tr 166 over Mauvaise Terre CR | Poor condition + traffic exposure | Poor | 250 | 1996 |
| Ch 23 over Fai 72 | Poor condition + traffic exposure | Poor | 125 | 1976 |
| Tr 128 over Spoon Creek | Poor condition + traffic exposure | Poor | 75 | 1961 |
| Tr 230 over Creek | Poor condition + traffic exposure | Poor | 75 | 1981 |
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.