Mo 151 S over Salt Rvr
Shelby County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mo 151 S over Salt Rvr in Shelby 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 1948, making it 77 years old at the 2025 inventory.
- It carries about 293 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 11 of the 106 inventoried bridges in Shelby County rated poor (10.4%); 11 (10.4%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2024, on a 24-month routine inspection cycle.
- 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 → (39.83001, -92.23028)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 184 ft |
| Location | S 15 T 58 N R 12 W |
| NBI structure number | 6100 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Shelby County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 36 E over Br of Crooked CR | 1957 | 8,098 | Fair |
| US 36 E over Brush CR | 2007 | 7,990 | Fair |
| US 36 W over Crooked CR | 2007 | 5,289 | Good |
| US 36 W over Rt Ff | 2007 | 5,098 | Good |
| US 36 W over N Fk Salt Rvr | 1978 | 3,988 | Fair |
| US 36 E over North Fk Salt Rvr | 2007 | 3,911 | Good |
All bridges nearby: Shelby County, MO bridge conditions · every bridge in Shelby County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.