N Portland Ave over Creek
McClain County, Oklahoma · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N Portland Ave over Creek in McClain 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 1985, making it 40 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2022).
- Its listed owner is a city or municipal highway agency.
- It is one of 99 of the 242 inventoried bridges in McClain County rated good (40.9%); 11 (4.5%) 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 October 2023, 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 → (35.24864, -97.58241)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 55 ft |
| Location | 1.0 E; 0.1 N Newcastle |
| NBI structure number | 209780000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 7: scour countermeasures installed |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in McClain County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-44 over S. Canadian River | 2000 | 45,900 | Fair |
| I-35 over Creek | 1959 | 45,100 | Fair |
| I-35 over Creek | 1959 | 36,300 | Fair |
| I-35 over Creek | 1959 | 36,300 | Fair |
| I-35 NB over S.H. 74 SB Ramp Under | 1967 | 35,900 | Fair |
| I-35 over Creek | 1959 | 35,100 | Good |
All bridges nearby: McClain County, OK bridge conditions · every bridge in McClain County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.