N4470 over Coal Creek
Craig County, Oklahoma · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N4470 over Coal Creek in Craig County, Oklahoma, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 2 (critical condition) on the 0-9 scale.
- It was built in 1946, making it 79 years old at the 2025 inventory.
- It carries about 24 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 30 of the 180 inventoried bridges in Craig County rated poor (16.7%); 30 (16.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: substructure 5 to 2.
- Its most recent inspection on record is dated September 2024, on a 6-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 2): scour critical: extensive scour observed, foundations unstable.
- 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 → (36.73086, -95.03545)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 3 | 3 | Serious condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 2 | Critical condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 34 ft |
| Location | 5 Mi SE of Bluejacket |
| NBI structure number | 104320000000000 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 6 months |
| Scour (item 113) | 2: scour critical: extensive scour observed, foundations unstable |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Craig County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Big Cabin Inter over Will Rogers Tp I-44 Und | 2007 | 21,600 | Good |
| Will Rogers Tpi-44 over I-44 Ramp Under | 1957 | 19,900 | Fair |
| Will Rogers Tpi-44 over U.S. 60 Under | 1957 | 19,900 | Fair |
| Will Rogers Tpi-44 over BNSF R.R. Under | 1957 | 19,900 | Fair |
| Will Rogers Tpi-44 over Little Cabin Creek | 1992 | 19,900 | Good |
| Will Rogers Tpi-44 over White Oak Creek Oflow | 1957 | 19,700 | Fair |
All bridges nearby: Craig County, OK bridge conditions · every bridge in Craig County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.