Bridge conditions in Sullivan County, Indiana
217 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Sullivan County tracks close to typical: 11 of its 217 inventoried bridges (5.1%) are rated poor, against a national rate of about 7%.
- 11 of the 217 bridges in Sullivan County, Indiana, are rated in poor condition (5.1%) in the 2025 National Bridge Inventory, as of .
- 65 bridges (30.0%) are rated good and 141 (65.0%) fair.
- The median Sullivan County bridge was built in 1971.
- The busiest poor-rated bridge is US 41 NB over Busseron Creek (built 1972), carrying about 6,687 vehicles a day.
Good 30.0% · Fair 65.0% · Poor 5.1% of 217 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 |
|---|---|---|---|
| US 41 NB over Busseron Creek | 1972 | 6,687 | Poor |
| SR 154 over Turman Creek | 1946 | 2,300 | Poor |
| CR 350 S over Unnamed Ditch | 1930 | 1,020 | Poor |
| CR 75 N (90 N) over Morrison Creek | 1935 | 190 | Poor |
| CR 1175 N over Branch of Turman Creek | 1985 | 190 | Poor |
| CR 50 N over Busseron Creek | 1975 | 170 | Poor |
| CR 570 S over Branch of Rodgers Ditch | 1930 | 140 | Poor |
| CR 600 E over Sulphur Creek | 1925 | 140 | Poor |
| CR 975 S over Branch of Maria Creek | 1910 | 110 | Poor |
| CR 300 S over Busseron Creek | 1899 | 110 | Poor |
| CR 400 E over Middle Fork Creek | 1935 | 110 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 41 NB over Morrison Creek | 1968 | 8,757 | Fair |
| US 41 SB over Morrison Creek | 1952 | 8,757 | Fair |
| US 41 NB over Busseron Creek | 1972 | 6,687 | Poor |
| US 41 SB over Busseron Creek | 1953 | 6,687 | Fair |
| US 41 NB over Branch Buck Creek | 1973 | 6,126 | Good |
| US 41 SB over Branch Buck Creek | 1973 | 6,126 | Fair |
| SR 54 over Buttermilk Creek | 2009 | 5,514 | Good |
| US 41 NB over Middle Fork Creek | 1973 | 5,452 | Fair |
| US 41 SB over Middle Fork Creek | 1958 | 5,452 | Fair |
| SR 48 over Kettle Creek | 1965 | 5,399 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Indiana: Indiana 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.