Bridge conditions in Mississippi County, Missouri
99 inventoried bridges · 10 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Mississippi County has 10 bridges rated poor out of 99 inventoried, a 10.1% share that puts it well above the national rate of about 7%.
- 10 of the 99 bridges in Mississippi County, Missouri, are rated in poor condition (10.1%) in the 2025 National Bridge Inventory, as of .
- 27 bridges (27.3%) are rated good and 62 (62.6%) fair.
- The median Mississippi County bridge was built in 1966.
- The busiest poor-rated bridge is US 62 E over Is 57 (built 1972), carrying about 4,227 vehicles a day.
Good 27.3% · Fair 62.6% · Poor 10.1% of 99 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 62 E over Is 57 | 1972 | 4,227 | Poor |
| US 60 W over Mississippi Rvr | 1929 | 2,670 | Poor |
| Mo 75 S over Drain Dtch #14 | 1922 | 690 | Poor |
| Mo 80 E over Drain Dtch #23 | 1922 | 628 | Poor |
| County Rd 525 over St James Drain Dtc | 1955 | 40 | Poor |
| County Rd 322 over Drain Dtch | 1966 | 35 | Poor |
| Rt Dd E over Drain Dtch #23 | 1948 | 28 | Poor |
| Rt Dd E over Drain Dtch #31 | 1948 | 28 | Poor |
| County Rd 319 over Drain Dtch No 29 | 1965 | 10 | Poor |
| County Rd 314 over Drain Dtch No 29 | 1900 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 57 S over Ash Slu Dtch | 1959 | 17,923 | Fair |
| Is 57 S over Drain Dtch | 1959 | 17,660 | Fair |
| Is 57 S over Lateral Dtch #2 | 1959 | 15,417 | Fair |
| Is 57 S over Mississippi Rvr | 1976 | 11,453 | Fair |
| Is 57 S over Lateral Dtch #2 | 1975 | 6,589 | Fair |
| Is 57 S over Lateral Dtch #23 | 1974 | 6,589 | Fair |
| Is 57 S over Big Lk Byu | 1974 | 6,589 | Fair |
| Is 57 N over Lateral Dtch #2 | 1975 | 4,864 | Fair |
| Is 57 N over Lateral Dtch #23 | 1974 | 4,864 | Fair |
| Is 57 N over Big Lk Byu | 1974 | 4,864 | Fair |
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.