Bridge conditions in McDonough County, Illinois
210 inventoried bridges · 13 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
McDonough County tracks close to typical: 13 of its 210 inventoried bridges (6.2%) are rated poor, against a national rate of about 7%.
- 13 of the 210 bridges in McDonough County, Illinois, are rated in poor condition (6.2%) in the 2025 National Bridge Inventory, as of .
- 112 bridges (53.3%) are rated good and 85 (40.5%) fair.
- The median McDonough County bridge was built in 1989.
- The busiest poor-rated bridge is Ill 9 over Drowning Fork (built 1960), carrying about 1,850 vehicles a day.
Good 53.3% · Fair 40.5% · Poor 6.2% of 210 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 9 over Drowning Fork | 1960 | 1,850 | Poor |
| Fas 441 - Ch 9 over Carter CR | 1955 | 750 | Poor |
| MS-1505 BulingtonR over E Fork Lamoine River | 1931 | 550 | Poor |
| Tr 418 over Drowning Fork | 1976 | 250 | Poor |
| Tr 408 over Drowning Fork | 1977 | 225 | Poor |
| Fas 1439 - Ch 8 over Camp Creek | 1937 | 200 | Poor |
| Tr 225 over E.f. Lamoine River | 1900 | 125 | Poor |
| Tr 15 over N. Fork Crooked Cree | 1959 | 50 | Poor |
| Tr 200 over Troublesome Creek | 1900 | 50 | Poor |
| Tr 234 over Camp Creek | 1900 | 25 | Poor |
| Tr 436 over Sugar Creek | 1900 | 25 | Poor |
| Tr 82 over Laharpe Creek | 1900 | 10 | Poor |
| Tr 477 over Trib Sugar CR | 1915 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 67 over Town Creek Fork | 1988 | 6,350 | Fair |
| NB US 67 over Farmers Fork | 2012 | 6,350 | Fair |
| SB US 67 over Farmers Fork | 2012 | 6,350 | Fair |
| SB US 67 over E Fork Lamoine River | 1988 | 6,050 | Fair |
| NB US 67 over E Fork Lamoine River | 1988 | 6,050 | Fair |
| SB US 67 over E Fork Crooked Creek | 1996 | 4,850 | Fair |
| NB US 67 over E Fork Crooked Creek | 1996 | 4,850 | Fair |
| US 67 over Short Fork Tributary | 1994 | 4,850 | Fair |
| US 136EB/WB over Il 336 | 2013 | 4,200 | Fair |
| Il 336EB over BNSF RR | 2008 | 3,900 | 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.