E0660 over Cimarron River
Creek County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- E0660 over Cimarron River in Creek County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1958, making it 67 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 158 of the 393 inventoried bridges in Creek County rated fair (40.2%); 79 (20.1%) 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 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (36.05967, -96.59535)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 571 ft |
| Location | 1E of Markham |
| NBI structure number | 232690000000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 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 Creek County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Turner Tp (I-44) over Rock Creek | 2018 | 31,300 | Good |
| Turner Tp (I-44) over Euchee Creek | 2018 | 31,300 | Good |
| Turner Tp (I-44) over Creek | 1953 | 26,300 | Good |
| Turner Tp (I-44) over Nickle Creek | 1953 | 26,300 | Fair |
| Turner Tp (I-44) over S.H. 166 / R.R. Under | 2006 | 26,300 | Good |
| Turner Tp (I-44) over Creek | 1953 | 25,900 | Good |
All bridges nearby: Creek County, OK bridge conditions · every bridge in Creek County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.