Olive Hill Road over Santiago Creek
GoodOrange County, California · 50 S/O Modjeska Cyn RD · Structure no. 55C0185
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 150
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Olive Hill Road over Santiago Creek is a concrete slab carrying Olive Hill Road over Santiago Creek in Orange County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 150 vehicles a day, roughly 1% of them trucks, projected to reach 206 by 2041. The structure is 36 ft (11 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Olive Hill Road over Santiago Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is Olive Hill Road over Santiago Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does Olive Hill Road over Santiago Creek carry?
About 150 vehicles per day (2021 count), of which roughly 1% are trucks.
How long is Olive Hill Road over Santiago Creek?
The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 16 ft wide.
Who owns Olive Hill Road over Santiago Creek?
It is owned by the County Highway Agency.