Bridge conditions in Adams County, Illinois
317 inventoried bridges · 19 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 317 bridges in Adams County: 129 rated good, 169 fair, and 19 poor.
- 19 of the 317 bridges in Adams County, Illinois, are rated in poor condition (6.0%) in the 2025 National Bridge Inventory, as of .
- 129 bridges (40.7%) are rated good and 169 (53.3%) fair.
- The median Adams County bridge was built in 1982.
- The busiest poor-rated bridge is Harrison Street over Curtis Creek (built 1967), carrying about 6,150 vehicles a day.
Good 40.7% · Fair 53.3% · Poor 6.0% of 317 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 |
|---|---|---|---|
| Harrison Street over Curtis Creek | 1967 | 6,150 | Poor |
| Fai 172 SB over Burton Creek | 1980 | 4,875 | Poor |
| Il 57 over Mill Creek | 1932 | 4,450 | Poor |
| Fai 172 SB over Bn RR | 1976 | 3,675 | Poor |
| Fai 172 NB over Bn RR | 1976 | 3,675 | Poor |
| Ch 11 over South Forkbear Creek | 1975 | 900 | Poor |
| Il 61 over Big Neck Creek | 1925 | 850 | Poor |
| Ch 11 over Mckee Creek | 1988 | 725 | Poor |
| Ch 14 over Cedar Creek | 1921 | 325 | Poor |
| Tr 495 over S Quincy Ditch | 1996 | 250 | Poor |
| Fas 1599 over Drainage Canal | 1980 | 150 | Poor |
| Tr 118 over Rock Crk. | 1933 | 125 | Poor |
| Tr 362A over Bear Crk | 1967 | 100 | Poor |
| Tr 367 over Mckee Ck | 1933 | 75 | Poor |
| Tr 124 over Bear Crk. | 1922 | 75 | Poor |
| Tr 350 over Mccraney Crk | 1916 | 75 | Poor |
| Tr 5 over Trib Williams Creek | 1965 | 50 | Poor |
| O.r.# 0062 over Br Mckee Creek | 1905 | 25 | Poor |
| Tr 0418 over Bear Creek | 1978 | 25 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai 172 over Fall Creek | 1982 | 13,100 | Good |
| Ill 104 over Fai 172 | 1976 | 12,000 | Fair |
| Fau 7810 (il 96) over Emery Creek | 2016 | 11,300 | Good |
| Ill 96 over Curtis Creek | 2003 | 10,500 | Fair |
| Fai 172 over Austin Creek | 1982 | 9,750 | Fair |
| US 24(WB)/ Broadwa over Miss. R/streets/bnrr | 1986 | 8,600 | Fair |
| US 24(EB)/ Maine S over Miss. R./front St/bn | 1930 | 8,450 | Fair |
| Fai 172 over Branch of Mill Creek | 1975 | 7,400 | Fair |
| I-172 over Dry Branch | 1975 | 7,350 | Fair |
| Fap 502/IL 57/3RD over Payson St | 1959 | 7,300 | 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.