Bridge conditions in Jefferson County, Illinois
259 inventoried bridges · 21 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Jefferson County tracks close to typical: 21 of its 259 inventoried bridges (8.1%) are rated poor, against a national rate of about 7%.
- 21 of the 259 bridges in Jefferson County, Illinois, are rated in poor condition (8.1%) in the 2025 National Bridge Inventory, as of .
- 114 bridges (44.0%) are rated good and 124 (47.9%) fair.
- The median Jefferson County bridge was built in 1987.
- The busiest poor-rated bridge is Fap-821 (ill-15) over Fai-57 (built 1968), carrying about 18,800 vehicles a day.
Good 44.0% · Fair 47.9% · Poor 8.1% of 259 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 |
|---|---|---|---|
| Fap-821 (ill-15) over Fai-57 | 1968 | 18,800 | Poor |
| I 57 NB over Dodds Creek | 1965 | 18,100 | Poor |
| I 57 SB over Dodds Creek | 1965 | 18,100 | Poor |
| I 64 EB over Fap-724 (ill-37) | 1972 | 5,500 | Poor |
| I 64 WB over Casey Fk & Un Pac RR | 1972 | 5,500 | Poor |
| I 64 EB over Casey Fk & Un Pac RR | 1972 | 5,500 | Poor |
| Fap-821 (ill-15) over Big Muddy Overflow | 1923 | 5,350 | Poor |
| I 64 EB over Cnic RR | 1974 | 5,125 | Poor |
| I 64 WB over Cnic RR | 1974 | 5,125 | Poor |
| Fas-2869 (ill-37) over Stream | 1921 | 4,150 | Poor |
| Fap-849 (ill-142) over Stream | 1928 | 3,650 | Poor |
| Fap-849 (ill-142) over Dodds Creek | 1928 | 3,650 | Poor |
| Fas-826 over Snow Creek | 1976 | 2,000 | Poor |
| Fas-819 over Casey Fork | 1974 | 1,350 | Poor |
| Fas 830 (ch 8) over Bear Creek | 1974 | 1,250 | Poor |
| Fas-836 (ch-35) over Puncheon Creek | 1956 | 550 | Poor |
| Fas-830 (ch-6) over Creek | 1987 | 375 | Poor |
| Fas-2871 over Creek | 1968 | 125 | Poor |
| Tr-117 over Icg RR | 1960 | 75 | Poor |
| Tr-459 over Creek | 1909 | 10 | Poor |
| Tr-435a over Stream | 1993 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 64 over Oak Ridge School Ck | 1974 | 28,600 | Fair |
| I 64 over Harper Creek | 1974 | 28,300 | Fair |
| I 64 over Pierce Creek | 1974 | 28,300 | Fair |
| I 57 NB over Fap-726 & Un Pacf RR | 1968 | 21,400 | Good |
| I 57 SB over Fap-726 & Un Pacf RR | 1968 | 21,400 | Fair |
| I 57 NB over Ew RR | 1967 | 21,400 | Fair |
| I 57 SB over Ew RR | 1967 | 21,400 | Fair |
| I 57 over Stream | 1967 | 21,400 | Fair |
| I-57 over Creek | 1900 | 21,000 | Fair |
| Fap-821 (ill-15) over Fai-57 | 1968 | 18,800 | Poor |
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.