US Bridges

Olive Hill RD over San Luis Rey River Trib

Good

San Diego County, California · 1.3MI S/O Mission RD · Structure no. 57C0314

Built
1960
65 years old, rebuilt 1990
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
3,888
2016 count
Owner
County
County Highway Agency

About this bridge

Olive Hill RD over San Luis Rey River Trib is a concrete continuous culvert carrying Olive Hill RD over San Luis Rey River Trib in San Diego County, California. It was built in 1960 and reconstructed in 1990, so it is 65 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 3,888 vehicles a day, roughly 1% of them trucks, projected to reach 3,755 by 2045. The structure is 30 ft (9.1 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOlive Hill RD
CrossesSan Luis Rey River Trib
Location1.3MI S/O Mission RD
RouteCounty Highway 0
Coordinates33.32925, -117.24486
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span10 ft (3 m)
Deck width58 ft (17.6 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,888 (2016)
Projected traffic3,755 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Olive Hill RD over San Luis Rey River Trib built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1990.

What condition is Olive Hill RD over San Luis Rey River Trib 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 June 2023.

How much traffic does Olive Hill RD over San Luis Rey River Trib carry?

About 3,888 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Olive Hill RD over San Luis Rey River Trib?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m) and a deck 58 ft wide.

Who owns Olive Hill RD over San Luis Rey River Trib?

It is owned by the County Highway Agency.