Bridge conditions in Vernon County, Missouri
404 inventoried bridges · 15 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Vernon County tracks close to typical: 15 of its 404 inventoried bridges (3.7%) are rated poor, against a national rate of about 7%.
- 15 of the 404 bridges in Vernon County, Missouri, are rated in poor condition (3.7%) in the 2025 National Bridge Inventory, as of .
- 147 bridges (36.4%) are rated good and 242 (59.9%) fair.
- The median Vernon County bridge was built in 1997.
- The busiest poor-rated bridge is Is 49 S over US 54 Mna RR (built 1969), carrying about 9,382 vehicles a day.
Good 36.4% · Fair 59.9% · Poor 3.7% of 404 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 |
|---|---|---|---|
| Is 49 S over US 54 Mna RR | 1969 | 9,382 | Poor |
| Is 49 S over Douglas Br | 1969 | 6,540 | Poor |
| Is 49 S over Rt K | 1969 | 4,685 | Poor |
| Rt W S over Medigener CR | 1921 | 4,480 | Poor |
| US 54 E over Drywood CR | 1984 | 4,057 | Poor |
| Rt Bb S over Birch CR | 1967 | 3,149 | Poor |
| Rt B E over Is 49 | 1975 | 1,279 | Poor |
| Rt E E over Mccarty CR | 1935 | 813 | Poor |
| Rt T S over Moores Br | 1985 | 628 | Poor |
| Rt M S over Makenzie CR | 1935 | 431 | Poor |
| Rt Ww S over Lit Osage Rvr | 1966 | 221 | Poor |
| Infantry Pass over Marmaton Rvr | 1925 | 100 | Poor |
| County Rd 2775 over Clear CR | 1960 | 50 | Poor |
| County Rd Trapper over Drywood CR | 1920 | 30 | Poor |
| Logan Rd over Clear CR | 1900 | 4 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 49 S over Dry CR | 1977 | 14,957 | Fair |
| US 54 E over Cst Underpass St Mna RR | 1963 | 14,820 | Fair |
| Is 49 S over Lp 49 | 1969 | 9,382 | Fair |
| Is 49 S over Mna RR | 1969 | 9,382 | Fair |
| Is 49 S over US 54 Mna RR | 1969 | 9,382 | Poor |
| Is 49 N over Mna RR | 1969 | 8,111 | Fair |
| Is 49 N over Rt K | 1969 | 7,738 | Fair |
| Is 49 N over Mna RR | 1975 | 7,738 | Fair |
| Is 49 S over Mna Railrd | 2022 | 7,662 | Good |
| Is 49 S over Douglas Br | 1969 | 6,540 | Poor |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Missouri: Missouri 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.