N1620 (0490C) over Kiowa Creek
Beaver County, Oklahoma · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N1620 (0490C) over Kiowa Creek in Beaver County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 61 of the 189 inventoried bridges in Beaver County rated good (32.3%); 3 (1.6%) 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 April 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (36.65833, -100.10944)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 240 ft |
| Location | 3N of Slapout |
| NBI structure number | 310500000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2024 |
| 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 Oklahoma department of transportation.
Busiest bridges in Beaver County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| U.S. 64 over Short Creek | 2003 | 3,600 | Good |
| U.S. 83 over Sharp Creek | 1997 | 3,500 | Good |
| U.S. 83 over Beaver River | 1988 | 3,200 | Fair |
| U.S. 83 over Creek | 1999 | 2,800 | Good |
| U.S. 83 over Creek | 1999 | 2,700 | Good |
| S.H. 3 over Creek | 1936 | 2,500 | Fair |
All bridges nearby: Beaver County, OK bridge conditions · every bridge in Beaver County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.