Bridge conditions in St. Joseph County, Indiana
227 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
St. Joseph County tracks close to typical: 11 of its 227 inventoried bridges (4.8%) are rated poor, against a national rate of about 7%.
- 11 of the 227 bridges in St. Joseph County, Indiana, are rated in poor condition (4.8%) in the 2025 National Bridge Inventory, as of .
- 109 bridges (48.0%) are rated good and 107 (47.1%) fair.
- The median St. Joseph County bridge was built in 1988.
- The busiest poor-rated bridge is US 20 over Clover Road (built 1991), carrying about 38,231 vehicles a day.
Good 48.0% · Fair 47.1% · Poor 4.8% of 227 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 20 over Clover Road | 1991 | 38,231 | Poor |
| Mayflower Road over Ardmore Trail | 1970 | 9,063 | Poor |
| Mayflower Road over Conrail RR | 1970 | 9,063 | Poor |
| ELM Rd over GRIMES Ditch | 1979 | 1,207 | Poor |
| PEACH Rd over PLACE Ditch | 1971 | 391 | Poor |
| WALNUT Rd over POTATO Creek | 1968 | 386 | Poor |
| SHIVELY Rd over KLINE Ditch | 1935 | 242 | Poor |
| INWOOD Rd over GEYER Ditch | 1925 | 176 | Poor |
| DARDEN Rd over GEYER Ditch | 1971 | 157 | Poor |
| QUINN Rd over PINE Creek | 1993 | 118 | Poor |
| HARRISON Rd over GEYER Ditch | 1920 | 97 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 23 over US 20 & US 31 | 2004 | 39,562 | Good |
| US 20 over York Road | 1988 | 39,107 | Fair |
| US 2031 Ebwb over Abandoned RR | 1966 | 39,107 | Good |
| US 20 over Miami Highway | 1991 | 39,107 | Fair |
| US 20 over Ironwood Rd (& Ramps) | 1988 | 38,452 | Good |
| US 20 over Clover Road | 1991 | 38,231 | Poor |
| US 2031 Ebwb over Abandoned RR Farm Road | 1964 | 35,618 | Good |
| US 2031 Ebwb over Gtw RR Farm Road | 1961 | 35,618 | Good |
| US 31 SB over US 20 Wb/eb Lincoln Way | 2016 | 32,820 | Good |
| SR 23 over Mishawaka Ave | 1962 | 31,324 | 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.