US36 Hwy over N F Black Vermillion Riv
Nemaha County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US36 Hwy over N F Black Vermillion Riv in Nemaha County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1959 and reconstructed in 1987, making it 66 years old at the 2025 inventory.
- It carries about 3,045 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 184 of the 355 inventoried bridges in Nemaha County rated fair (51.8%); 37 (10.4%) 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 June 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 → (39.84139, -96.21944)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 172 ft |
| Location | 1.06 Mi E Marshall Coln |
| NBI structure number | 999903600660011 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 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 Nemaha County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-36 Hwy over South F Big Nemaha Riv | 1996 | 3,649 | Good |
| US36 Hwy over Black Vermillion Creek | 1958 | 3,307 | Fair |
| US-36 Hwy over Harris Creek Drainage | 1996 | 3,162 | Good |
| US36 Hwy over Harris Creek Drainage | 1940 | 3,092 | Good |
| US36 Hwy over Cedar Creek | 1940 | 3,092 | Good |
| US36 Hwy over Cedar Creek | 1940 | 3,092 | Good |
All bridges nearby: Nemaha County, KS bridge conditions · every bridge in Nemaha County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.