Bridge conditions in Lee County, Illinois
373 inventoried bridges · 42 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Lee County has 42 bridges rated poor out of 373 inventoried, a 11.3% share that puts it well above the national rate of about 7%.
- 42 of the 373 bridges in Lee County, Illinois, are rated in poor condition (11.3%) in the 2025 National Bridge Inventory, as of .
- 147 bridges (39.4%) are rated good and 184 (49.3%) fair.
- The median Lee County bridge was built in 1982.
- The busiest poor-rated bridge is Ch 1 Lost Nation R over Franklin Creek (built 1957), carrying about 1,900 vehicles a day.
Good 39.4% · Fair 49.3% · Poor 11.3% of 373 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 |
|---|---|---|---|
| Ch 1 Lost Nation R over Franklin Creek | 1957 | 1,900 | Poor |
| Steward Rd over Trib of Steward Crk | 1969 | 650 | Poor |
| Franklin Rd over Franklin Creek | 1958 | 625 | Poor |
| Reynolds Rd.-fas 1 over Stream | 1991 | 600 | Poor |
| Franklin Road over Br of Franklin CR | 1966 | 550 | Poor |
| Fas-188 (ch-15) over Five Mile Branch | 1962 | 450 | Poor |
| Inlet Road over Br of Green River | 1962 | 400 | Poor |
| Sterling Road over Br of Green River | 1968 | 375 | Poor |
| Ch-15 Indian Head over Red Oak Ditch | 1956 | 300 | Poor |
| Naylor Road (TR61) over Chamberlain Creek | 1992 | 300 | Poor |
| West Brooklyn Road over Drainage Ditch | 1983 | 275 | Poor |
| Ch 15 Indian Head over Main Ditch | 1966 | 275 | Poor |
| Ch-6 (brooklyn Rd) over Willow Creek | 1957 | 250 | Poor |
| CH11 Pump Factory over Three Mile Branch | 1960 | 250 | Poor |
| Green Wing Road over Green River | 1970 | 200 | Poor |
| Lee Center Rd over Trib of Green River | 1950 | 200 | Poor |
| Ch 37 Sugar Grove over Reid Creek | 1961 | 175 | Poor |
| Ch 12 Maytown Rd over Branch of Green Rive | 1957 | 150 | Poor |
| Ch 8 Steward Rd over Dry Run Creek | 1959 | 125 | Poor |
| Timber Creek Rd over Sugar Creek | 1969 | 125 | Poor |
| TR201 Beemerville over Unnamed Stream | 1977 | 125 | Poor |
| Beach Road over Beach Creek Trib | 1978 | 100 | Poor |
| Morgan Rd over Drainage Ditch | 1978 | 100 | Poor |
| Lenox Rd over Sugar Creek | 1974 | 100 | Poor |
| Hoyle Road over 3 Mile Branch | 1982 | 100 | Poor |
| Dutch Road - Tr 66 over 5 Mile Branch | 1987 | 100 | Poor |
| Tr-250(zimmerman R over Trib Bureau CR | 1958 | 100 | Poor |
| Steward Road over Drainage Ditch | 1983 | 75 | Poor |
| Tr-10 (eakle Rd) over Green River Trib | 1971 | 50 | Poor |
| Meyers Rd over Green River | 1964 | 50 | Poor |
| Tr-222 (thorpe Rd) over Beach Creek | 1971 | 50 | Poor |
| Maytown Road over Branch of Bureau CR | 1982 | 50 | Poor |
| Tr-272 (paw Paw Rd over Dry Run | 1950 | 50 | Poor |
| Melugins Gr-tr238 over Drainage Ditch | 1938 | 25 | Poor |
| Pipeline Rd over Green River Trib | 1970 | 25 | Poor |
| Miller Rd over Green River Trib | 1975 | 25 | Poor |
| Bollman Rd over Three Mile Branch | 1901 | 25 | Poor |
| Tr-279 (locust Rd) over Dry Run Creek | 1994 | 25 | Poor |
| Town Hall Rd-tr230 over Drainage Ditch | 1938 | 10 | Poor |
| Melugins Grove Rd over Br Green River | 1970 | 10 | Poor |
| Lievan Rd over 3 Mi Branch | 1986 | 10 | Poor |
| Slant Rd over Big Bureau Creek | 1939 | – | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 52 & Il 2 & Il over Rock River | 2002 | 22,100 | Fair |
| I 39&US 51 over Steward Creek Branch | 1984 | 19,500 | Fair |
| I 39&US 51 over Dry Run Creek | 1982 | 19,100 | Fair |
| I 39&US 51 over Stream | 1984 | 19,100 | Fair |
| I 39&US 51 over Harmon Creek South | 1982 | 19,100 | Fair |
| I 39&US 51 over Willow Creek | 1983 | 18,700 | Fair |
| I 39&US 51 over Willow Creek | 1983 | 18,700 | Fair |
| I 39&US 51 over Willow Creek | 1983 | 18,700 | Fair |
| I-88 over Cleary Lateral Creek | 1972 | 16,100 | Good |
| I-88 over Beach Creek | 1972 | 16,100 | 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.