Livingston County Bridge Report Card
Livingston County scores 78 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Livingston County, Illinois
Livingston County has 579 bridges in the National Bridge Inventory, with 46 rated poor and 5 rated scour-critical. Its poor-condition share of 7.9% is at or below the 9.5% statewide average. Poor-condition bridges carry about 25,510 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Livingston County a Bridge Condition Exposure Score of 78/100 (C). The county has 579 bridges in the National Bridge Inventory, including 46 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 25,510 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 | 7.9% | 15.9 |
| Poor-condition traffic exposure | 25 | 5.4% of measured traffic | 4.0 |
| Scour-critical bridge share | 20 | 0.9% | 1.7 |
| Average age vs national baseline | 10 | 47 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 473,050 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 | 7.9% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.9% |
| Average Bridge Age | 47 years |
| Poor-Condition Traffic Exposure | 25,510 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Livingston County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Tr 24 over Mole Creek | Poor condition + traffic exposure | Poor | 100 | 1965 |
| Tr 47 over West Fork Mazon R | Poor condition + traffic exposure | Poor | 50 | 1920 |
| Tr 150 over Drainage Ditch | Poor condition + traffic exposure | Poor | 50 | 1940 |
| Tr 29 over Trib E Fork Mazon R | Poor condition + traffic exposure | Poor | 25 | 1965 |
| Ill 23 over I-55 | Poor condition + traffic exposure | Poor | 3,900 | 1972 |
| Ill 23 over Vermilion R & At&sf | Poor condition + traffic exposure | Poor | 3,350 | 1981 |
| Ill 116 over Scattering Point CR | Poor condition + traffic exposure | Poor | 3,050 | 1970 |
| US 24 over Br S Fk Vermilion Rv | Poor condition + traffic exposure | Poor | 2,950 | 1951 |
| Old RT 66 Nb/fas 2 over Wolf Creek | Poor condition + traffic exposure | Poor | 2,550 | 1955 |
| Old RT 66 Nb/fas 2 over Mazon River | Poor condition + traffic exposure | Poor | 1,550 | 1954 |
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.