Irr 5840C over Shawnee Branch
Ottawa County, Oklahoma · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr 5840C over Shawnee Branch in Ottawa County, Oklahoma, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1940, making it 85 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 59 of the 271 inventoried bridges in Ottawa County rated poor (21.8%); 59 (21.8%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: substructure 2 to 4.
- Its most recent inspection on record is dated March 2024, 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 → (36.82991, -94.72477)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 2 | 4 | Poor condition |
Bridge details
| Structure | Concrete slab |
| Length | about 31 ft |
| Location | 2.8S 1.2W 10&10C |
| NBI structure number | 081580000000000 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | March 2024 |
| 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 Oklahoma department of transportation.
Busiest bridges in Ottawa County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Old S.H. 137 over Will Rogers Tp I-44 Und | 1956 | 21,000 | Fair |
| Will Rogers Tpi-44 over Creek | 1957 | 19,900 | Good |
| Will Rogers Tpi-44 over Horse Creek | 1957 | 19,900 | Good |
| Will Rogers Tpi-44 over BNSF R.R. Under | 1957 | 19,900 | Good |
| Will Rogers Tpi-44 over Creek | 1957 | 19,000 | Good |
| Will Rogers Tpi-44 over Creek | 1957 | 19,000 | Good |
All bridges nearby: Ottawa County, OK bridge conditions · every bridge in Ottawa County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.