Rd 21 over Trib. to Rattlesnake Ck.
Kiowa County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rd 21 over Trib. to Rattlesnake Ck. in Kiowa County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1980, making it 45 years old at the 2025 inventory.
- It carries about 70 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 50 of the 89 inventoried bridges in Kiowa County rated fair (56.2%); 2 (2.2%) are rated poor.
- 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 → (37.56678, -99.37576)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 26 ft |
| Location | 5.0E 1.3S of Mullinville |
| NBI structure number | 000490597006343 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Kiowa County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US54/US400 Hwy over Kiowa Co State Lake Drg. | 1955 | 8,434 | Good |
| US54/US400 Hwy over Rattlesnake Creek Drg | 1986 | 6,536 | Good |
| US54/US400 Hwy over S Br Rattlesnake CR | 1954 | 6,454 | Good |
| US54/US400 Hwy over E F Rattlesnake CR | 1994 | 5,976 | Good |
| US54/US400 Hwy over E F Rattlesnake CR Dr | 1994 | 5,976 | Good |
| US54 Hwy over Rattlesnake Creek Drg. | 1959 | 2,678 | Good |
All bridges nearby: Kiowa County, KS bridge conditions · every bridge in Kiowa County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.