Bridge conditions in Ogle County, Illinois
378 inventoried bridges · 28 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Ogle County tracks close to typical: 28 of its 378 inventoried bridges (7.4%) are rated poor, against a national rate of about 7%.
- 28 of the 378 bridges in Ogle County, Illinois, are rated in poor condition (7.4%) in the 2025 National Bridge Inventory, as of .
- 178 bridges (47.1%) are rated good and 172 (45.5%) fair.
- The median Ogle County bridge was built in 1982.
- The busiest poor-rated bridge is Lakeview Drive over Kyte Creek (built 1963), carrying about 1,750 vehicles a day.
Good 47.1% · Fair 45.5% · Poor 7.4% of 378 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 |
|---|---|---|---|
| Lakeview Drive over Kyte Creek | 1963 | 1,750 | Poor |
| Seventh Avenue over Kyte Creek | 1966 | 1,600 | Poor |
| First Avenue over Kyte Creek | 1978 | 1,550 | Poor |
| Mulford Rd over Kilbuck CR | 1979 | 750 | Poor |
| Mill Road over Mill Creek | 1980 | 600 | Poor |
| Big Mound Road over Kilbuck Creek | 1981 | 500 | Poor |
| Junction Road over Drainage Ditch | 1978 | 425 | Poor |
| Hemstock Road over Unnamed Stream | 1980 | 400 | Poor |
| Big Mound Road over Stillman Creek | 1981 | 300 | Poor |
| Brush Grove Rd. over Drainage Ditch | 1962 | 275 | Poor |
| Limekiln Road over Mud Creek | 1981 | 250 | Poor |
| Conger Road over Mill Creek | 1987 | 250 | Poor |
| Woodburn Road over Unnamed Stream | 1995 | 225 | Poor |
| Penn Corner Rd over Pine Creek | 1961 | 200 | Poor |
| Mt Vernon Road over Br Leaf River | 1977 | 150 | Poor |
| East Line Road- Tr over S Br Kishwaukee Riv. | 1982 | 150 | Poor |
| Honey Creek Road over Kyte Creek | 1983 | 150 | Poor |
| Razorville Road over Spring Creek | 1983 | 125 | Poor |
| So Second Street over Kyte Creek | 1975 | 125 | Poor |
| Mt Morris Rd over Mud Creek | 1971 | 100 | Poor |
| Columbian Road over Pine Creek | 1985 | 100 | Poor |
| Plucker Road over Br of Stillman Creek | 1980 | 75 | Poor |
| Town Hall Road over Silver Creek | 1982 | 75 | Poor |
| Henry Rd - Tr 311 over Pine Creek | 1982 | 50 | Poor |
| Pilgrim Rd over Seuen Mile Branch | 1982 | 50 | Poor |
| Sumner Rd. over Br. Leaf River | 1967 | 25 | Poor |
| Oak Grove Rd. over Br of Middle Crk | 1967 | 25 | Poor |
| Wagner Rd over Branch Mud Creek | 1977 | 25 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-39 & US 51 over Stream | 1981 | 32,800 | Fair |
| I 39 & US 51 over Kilbuck Creek Trib | 1981 | 32,800 | Fair |
| I-39 & US 51 over Stream | 1981 | 32,200 | Good |
| I-39 & US 51 over Stream | 1981 | 29,600 | Fair |
| I-39 & US 51 over Stream | 1981 | 29,600 | Fair |
| I-39 & US 51 over Stream | 1981 | 29,100 | Fair |
| I-39 & US 51 over Stream | 1981 | 19,500 | Fair |
| I-88 (e-w Tollway) over Stream | 1972 | 16,600 | Fair |
| I-88 (e-w Tollway) over Stream | 1972 | 16,600 | Fair |
| I-39 & US 51 SB over Fap 553(IL 72) | 1981 | 16,400 | 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.