Bridge conditions in Henderson County, Illinois
142 inventoried bridges · 18 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 8 bridges in Henderson County is rated in poor condition: 18 of 142 on the federal inventory, one of the higher shares in Illinois.
- 18 of the 142 bridges in Henderson County, Illinois, are rated in poor condition (12.7%) in the 2025 National Bridge Inventory, as of .
- 46 bridges (32.4%) are rated good and 78 (54.9%) fair.
- The median Henderson County bridge was built in 1988.
- The busiest poor-rated bridge is US 34WB over Crystal Lk Dr Ditch (built 1998), carrying about 10,200 vehicles a day.
Good 32.4% · Fair 54.9% · Poor 12.7% of 142 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 34WB over Crystal Lk Dr Ditch | 1998 | 10,200 | Poor |
| Carman Rd over Dugout Creek | 1954 | 2,000 | Poor |
| Co. Hwy. 15 over Lonetree Ditch | 1979 | 575 | Poor |
| Fas 1420 over Ellison Diversion Di | 1985 | 500 | Poor |
| Fas 1420 - Ch 6 over Ellison Creek | 1975 | 375 | Poor |
| Old US 34 over Old Tom Creek | 1922 | 200 | Poor |
| Old US 34 over S Henderson Creek | 1921 | 200 | Poor |
| Tr 81 over Henderson Creek | 1984 | 100 | Poor |
| Lock & Park Traffi over Henderson River | 1937 | 100 | Poor |
| Tr 6A (warren) over Cedar Creek | 1985 | 75 | Poor |
| Tr 1A - Hancock Co over Camp Creek | 1917 | 75 | Poor |
| Ch 11 over Henderson CR | 1978 | 50 | Poor |
| Tr 160 over S.henderson Creek | 1991 | 50 | Poor |
| Tr 132 over Henderson CR | 1998 | 50 | Poor |
| Tr 178 over S Henderson CR | 1915 | 25 | Poor |
| Warren Co. Tr 4 over S. Fk. Henderson CR. | 1970 | 25 | Poor |
| Tr 26 over Honey CR | 1965 | 25 | Poor |
| Tr 64 over Stream | 1995 | 25 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 34 over Miss Riv & Cri&p RR | 1994 | 10,800 | Fair |
| US 34 over Chinn St Gulfport | 1970 | 10,200 | Fair |
| US 34 over BNSF RR (079194E) | 1970 | 10,200 | Fair |
| US 34EB over Crystal Lk Dr Ditch | 1998 | 10,200 | Fair |
| US 34WB over Crystal Lk Dr Ditch | 1998 | 10,200 | Poor |
| US 34 over P.d. Creek | 2008 | 6,050 | Fair |
| US 34 over Lone Tree Creek | 2002 | 6,050 | Fair |
| US 34EB over S. Henderson CR | 2014 | 4,000 | Fair |
| US 34WB over S. Henderson CR | 2014 | 4,000 | Fair |
| Carman Rd over Ellison Creek | 2015 | 3,200 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Illinois: Illinois bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.