Oil Service over Tidal Inlet Channel
Orange County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Oil Service over Tidal Inlet Channel in Orange County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 2006, making it 19 years old at the 2025 inventory.
- It carries about 1,000 vehicles a day (traffic count year 2016).
- It is one of 479 of the 1,181 inventoried bridges in Orange County rated fair (40.6%); 33 (2.8%) 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 September 2023, 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 → (33.68329, -118.03458)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 410 ft |
| Location | 350 Ft East Pch |
| NBI structure number | 55P0001 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| 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 California department of transportation.
Busiest bridges in Orange County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 405 over Bolsa Chica Ditch | 1959 | 374,000 | Fair |
| Route 5 over Route 55 | 1955 | 329,500 | Fair |
| Interstate 5 over La Paz Rd | 1959 | 327,000 | Fair |
| Interstate 5 over Red Hill Ave | 1992 | 324,300 | Fair |
| State Route 91 over Patt Drain #4 | 1959 | 319,000 | Good |
| State Route 91 over Patt Drain #5 | 1959 | 319,000 | Good |
All bridges nearby: Orange County, CA bridge conditions · every bridge in Orange County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.