RS 607 21st over Cowskin Creek
Sedgwick County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- RS 607 21st over Cowskin Creek in Sedgwick County, Kansas, 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 1948 and reconstructed in 1977, making it 77 years old at the 2025 inventory.
- It carries about 10,607 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 408 of the 1,339 inventoried bridges in Sedgwick County rated fair (30.5%); 39 (2.9%) 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 → (37.72223, -97.49228)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 254 ft |
| Location | 21stN 0.5 E of 135thW |
| NBI structure number | 000000000870880 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Sedgwick County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| K 96 Hwy over Middle Fork Chisolm Crk | 2023 | 59,400 | Good |
| I-235 Hwy over I-235 HWY I-135 Ramps | 2023 | 59,400 | Good |
| K 96 Hwy WB over BNSF RR | 2022 | 59,400 | Good |
| US54/US400 Hwy WB over BNSF Railroad | 1953 | 59,000 | Fair |
| US 54 Hw EB over BNSF & Ko RR & Streets | 1979 | 59,000 | Good |
| US-54 Hwy WB over City Sts/arkansas River | 1994 | 59,000 | Good |
All bridges nearby: Sedgwick County, KS bridge conditions · every bridge in Sedgwick County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.