Mo 73 S over Little Niangua CR
Dallas County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mo 73 S over Little Niangua CR in Dallas County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1925, making it 100 years old at the 2025 inventory.
- It carries about 2,052 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 11 of the 114 inventoried bridges in Dallas County rated poor (9.6%); 11 (9.6%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (37.85432, -93.02283)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 209 ft |
| Location | S 21 T 36 N R 19 W |
| NBI structure number | 4790 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Dallas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 65 S over Wilson CR | 1992 | 9,071 | Fair |
| US 65 S over Buffalo CR | 1992 | 7,502 | Fair |
| US 65 S over Hankens CR | 1992 | 7,502 | Fair |
| US 65 S over Br of Lindley CR | 1928 | 5,307 | Fair |
| US 65 S over Lindley CR | 1928 | 5,290 | Fair |
| US 65 S over Br of Lindley CR | 1928 | 5,290 | Fair |
All bridges nearby: Dallas County, MO bridge conditions · every bridge in Dallas County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.