Is 49 S over Miami CR
Bates County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Is 49 S over Miami CR in Bates County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1986, making it 39 years old at the 2025 inventory.
- It carries about 6,951 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 228 of the 320 inventoried bridges in Bates County rated fair (71.2%); 34 (10.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (38.177, -94.35401)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 296 ft |
| Location | S 8 T 39 N R 31 W |
| NBI structure number | 3618 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| 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 Bates County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 49 S over N Fk Big Deer CR | 1969 | 20,604 | Fair |
| Is 49 S over S Fk of Deer CR | 1969 | 19,124 | Fair |
| Is 49 S over Br Bones CR | 1969 | 19,124 | Fair |
| Is 49 S over Bones Br | 1926 | 19,124 | Fair |
| Is 49 S over Fk of Bones Br | 1969 | 16,559 | Fair |
| Is 49 S over Park Br Ovrfl | 1960 | 15,153 | Fair |
All bridges nearby: Bates County, MO bridge conditions · every bridge in Bates County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.