Irr E1320 over Cobb Creek
Caddo County, Oklahoma · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr E1320 over Cobb Creek in Caddo 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 2009, making it 16 years old at the 2025 inventory.
- It carries about 401 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 104 of the 423 inventoried bridges in Caddo County rated good (24.6%); 50 (11.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: deck 8 to 7, substructure 8 to 7.
- Its most recent inspection on record is dated February 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 → (35.10278, -98.42583)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 131 ft |
| Location | .6E of Fort Cobb |
| NBI structure number | 298220000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 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 Caddo County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-40 over Creek | 1960 | 20,400 | Good |
| I-40 over Creek | 1959 | 20,300 | Good |
| I-40 over Creek | 1959 | 19,700 | Good |
| I-40 over Deer Creek Trib. | 1964 | 19,600 | Good |
| I-40 over Creek | 1960 | 19,000 | Good |
| I-40 over White Canyon Creek Trib. | 1960 | 19,000 | Fair |
All bridges nearby: Caddo County, OK bridge conditions · every bridge in Caddo County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.