U.S. 177 over Washita River
Carter County, Oklahoma · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- U.S. 177 over Washita River in Carter County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 1,900 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 124 of the 337 inventoried bridges in Carter County rated good (36.8%); 16 (4.7%) are rated poor.
- 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 → (34.23349, -96.97608)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 744 ft |
| Location | 3.3 N Jct S.H. 199 |
| NBI structure number | 306030000000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Carter County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 over Sewer Creek | 1965 | 32,700 | Fair |
| I-35 over Creek | 1965 | 32,400 | Fair |
| I-35 over Creek | 1965 | 32,200 | Fair |
| I-35 over Creek | 1965 | 31,200 | Good |
| I-35 over Tulip Creek | 1968 | 30,800 | Good |
| I-35 over Tulip Creek | 1968 | 30,800 | Good |
All bridges nearby: Carter County, OK bridge conditions · every bridge in Carter County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.