Rs 578 Bb-25.3 over Coon Creek
Washington County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rs 578 Bb-25.3 over Coon Creek in Washington County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 93 vehicles a day (traffic count year 2014).
- Its listed owner is the county highway agency.
- It is one of 134 of the 335 inventoried bridges in Washington County rated fair (40.0%); 12 (3.6%) 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 March 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 → (39.6481, -96.86291)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 119 ft |
| Location | 4.3S 0.5E of Barnes |
| NBI structure number | 000000001010140 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US36 Hwy over Mill Creek Drainage | 1936 | 2,657 | Fair |
| US36 over Mill Creek | 1999 | 2,657 | Good |
| US36 Hwy over Little Blue River Drg. | 1938 | 2,452 | Good |
| US36 over Lane Branch Creek | 1999 | 2,452 | Good |
| U36 over Little Blue River | 1999 | 2,452 | Good |
| K15 Hwy over Mill Creek | 2020 | 2,329 | Good |
All bridges nearby: Washington County, KS bridge conditions · every bridge in Washington County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.