Bridge conditions in Menard County, Illinois
89 inventoried bridges · 10 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Menard County has 10 bridges rated poor out of 89 inventoried, a 11.2% share that puts it well above the national rate of about 7%.
- 10 of the 89 bridges in Menard County, Illinois, are rated in poor condition (11.2%) in the 2025 National Bridge Inventory, as of .
- 36 bridges (40.4%) are rated good and 43 (48.3%) fair.
- The median Menard County bridge was built in 1988.
- The busiest poor-rated bridge is Ill 97 over Sangamon R Overflow (built 1938), carrying about 1,750 vehicles a day.
Good 40.4% · Fair 48.3% · Poor 11.2% of 89 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 |
|---|---|---|---|
| Ill 97 over Sangamon R Overflow | 1938 | 1,750 | Poor |
| Fas 1571 over Salt Creek | 1978 | 100 | Poor |
| Tr 11 over Grove Creek | 1900 | 75 | Poor |
| Tr 164 over Grove CR | 1939 | 75 | Poor |
| Tr 59 over Cabiness Creek | 1900 | 50 | Poor |
| Fas 1571 over Pike Creek | 1957 | 50 | Poor |
| Tr 22 over Tar Ck | 1900 | 50 | Poor |
| Tr 37 over Concord Creek | 1977 | 50 | Poor |
| Tr 75 over Grove CR | 1900 | 25 | Poor |
| Tr 14 over Drainage Ditch | 1978 | 25 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Il 97/IL 123 over Hemp Factory Branch | 1994 | 4,850 | Good |
| Ill 123 over Sangamon River | 1985 | 4,800 | Fair |
| Ill 29 over Indian Creek | 1957 | 4,200 | Fair |
| Ill 97 & 123 over Rocky Branch Creek | 1990 | 4,200 | Good |
| Ill 97 over Rock Creek | 1989 | 3,900 | Good |
| Ill 97 over C&im RR | 1939 | 2,750 | Fair |
| Ill 123 over Indian Creek | 1991 | 2,200 | Good |
| Ill 29 over Allens Grove Ditch | 1960 | 2,000 | Good |
| Ill 29 over Drainage Ditch | 1961 | 2,000 | Fair |
| Ill 29 over Grove Creek | 1959 | 1,850 | 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.