Bridge conditions in Washington County, Illinois
234 inventoried bridges · 14 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 234 bridges in Washington County: 116 rated good, 104 fair, and 14 poor.
- 14 of the 234 bridges in Washington County, Illinois, are rated in poor condition (6.0%) in the 2025 National Bridge Inventory, as of .
- 116 bridges (49.6%) are rated good and 104 (44.4%) fair.
- The median Washington County bridge was built in 1982.
- The busiest poor-rated bridge is I-64 EB over Prairie Rd Abandoned UPR (built 1972), carrying about 14,000 vehicles a day.
Good 49.6% · Fair 44.4% · Poor 6.0% of 234 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 |
|---|---|---|---|
| I-64 EB over Prairie Rd Abandoned UPR | 1972 | 14,000 | Poor |
| I-64 WB over Prairie Rd Abandoned UPR | 1972 | 14,000 | Poor |
| Ill 127 over Fai-64 | 1971 | 10,100 | Poor |
| Ch 27 over Willow Creek | 1960 | 625 | Poor |
| Tr 279 over South Fork Mud Creek | 1925 | 350 | Poor |
| Ch 7 over Beaucoup Creek | 1977 | 275 | Poor |
| Tr 102 over Br Williams CR | 1920 | 50 | Poor |
| Tr 13 over Herzog Creek | 1957 | 50 | Poor |
| Tr 162A over North Creek | 1930 | 25 | Poor |
| Tr 190 over Br North Creek | 1920 | 25 | Poor |
| Tr-239 over Br of Elkhorn Creek | 1915 | 25 | Poor |
| Tr 191 over Brushy Creek | 1968 | 25 | Poor |
| Tr 182 over Br North Creek | 1920 | 10 | Poor |
| Tr 188 over Br North Creek | 1915 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai 64 EB over Kaskaskia River | 1971 | 15,500 | Fair |
| Fai 64 WB over Kaskaskia River | 1971 | 15,500 | Fair |
| Fai 64 EB over Kaskaskia R Overflow | 1969 | 15,500 | Good |
| Fai 64 WB over Kaskaskia R Overflow | 1969 | 15,500 | Good |
| Fai 64 WB over Plum Creek | 1969 | 15,500 | Fair |
| Fai 64 EB over Plum Creek | 1969 | 15,500 | Fair |
| Fai 64 EB over Beaver Pond Creek | 1969 | 14,650 | Fair |
| Fai 64 WB over Beaver Pond Creek | 1969 | 14,650 | Fair |
| Fai 64 EB over Little Crooked Creek | 1969 | 14,650 | Fair |
| Fai 64 WB over Little Crooked Ck | 1969 | 14,650 | 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.