3446C Major over Cow Creek
Jefferson County, Oklahoma · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 3446C Major over Cow Creek in Jefferson County, Oklahoma, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1993, making it 32 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 8 of the 150 inventoried bridges in Jefferson County rated poor (5.3%); 8 (5.3%) 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 May 2023, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (34.24396, -97.97267)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 4 | 4 | Poor condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 44 ft |
| Location | 0.2 Mi W US 81 |
| NBI structure number | 232940000000000 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Jefferson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| U.S. 70 over Creek | 1932 | 3,000 | Good |
| U.S. 81 over Creek | 1929 | 2,900 | Good |
| U.S. 81 over Creek | 1929 | 2,900 | Good |
| U.S. 81 over Creek | 1959 | 2,900 | Good |
| U.S. 81 over Creek | 1959 | 2,900 | Good |
| U.S. 70 over Long Branch Creek | 2001 | 2,900 | Good |
All bridges nearby: Jefferson County, OK bridge conditions · every bridge in Jefferson County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.