Bridge conditions in Miller County, Missouri
142 inventoried bridges · 16 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 142 Miller County bridges in the federal inventory, 16 carry a poor rating. That 11.3% share is roughly 2x the national average.
- 16 of the 142 bridges in Miller County, Missouri, are rated in poor condition (11.3%) in the 2025 National Bridge Inventory, as of .
- 53 bridges (37.3%) are rated good and 73 (51.4%) fair.
- The median Miller County bridge was built in 1973.
- The busiest poor-rated bridge is US 54 E over Bu 54 (built 1973), carrying about 6,847 vehicles a day.
Good 37.3% · Fair 51.4% · Poor 11.3% of 142 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 54 E over Bu 54 | 1973 | 6,847 | Poor |
| Mo 42 E over Spring Br | 1964 | 2,252 | Poor |
| Swinging Br Rd over Grand Auglaize | 1920 | 250 | Poor |
| Old Tuscumbia Rd over Saline CR | 1930 | 100 | Poor |
| Klass Rd over Saline CR | 1930 | 90 | Poor |
| Olean Rd over Blythes CR | 1930 | 55 | Poor |
| Blackmer Rd over Lit Bear CR | 1930 | 55 | Poor |
| Sparks Rd over Blythes CR | 1920 | 45 | Poor |
| Kemna Bridge Rd over Tavern CR | 1910 | 45 | Poor |
| Bluespring Rd over Lit Gravois CR | 1930 | 45 | Poor |
| Ridge Rd over Lit Tavern CR | 2006 | 35 | Poor |
| Abbott Rd over Trib to S Moreau C | 1930 | 25 | Poor |
| Singer Rd over Tavern CR | 1910 | 25 | Poor |
| Independence Rd over Br of S Moreau CR | 1930 | 20 | Poor |
| Bear Creek Rd over Trib to Bear CR | 2016 | 20 | Poor |
| Crossroads Dr over Atwell CR | 1930 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 54 E over Dry Br | 1973 | 22,009 | Fair |
| US 54 E over Saline CR | 1973 | 14,647 | Fair |
| US 54 E over Cst Wilmore Ln | 2020 | 12,660 | Good |
| US 54 E over Osage Rvr | 2003 | 12,643 | Fair |
| US 54 W over Osage Rvr | 1966 | 12,534 | Fair |
| US 54 W over Cst Connector Rd | 2020 | 12,534 | Good |
| US 54 W over Wrights CR | 1972 | 11,018 | Good |
| US 54 E over Wrights CR | 1972 | 10,991 | Fair |
| US 54 E over Little Gravois CR | 1966 | 7,947 | Good |
| US 54 W over Little Gravois CR | 1966 | 7,933 | 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.