US Bridges

Royal Oak RD over Campo Creek

Good

San Diego County, California · 150 Ft East of Old HWY 80 · Structure no. 57C0739

Built
1960
65 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
132
2023 count
Owner
County
County Highway Agency

About this bridge

Royal Oak RD over Campo Creek is a concrete culvert carrying Royal Oak RD over Campo Creek in San Diego County, California. It was built in 1960, 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 132 vehicles a day, roughly 1% of them trucks, projected to reach 140 by 2045. The structure is 25 ft (7.7 m) long and 30 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesRoyal Oak RD
CrossesCampo Creek
Location150 Ft East of Old HWY 80
RouteCounty Highway 0
Coordinates32.68724, -116.33591
Functional classUrban Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 15
Structure length25 ft (7.7 m)
Longest span6 ft (1.8 m)
Deck width30 ft (9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2023)
Projected traffic140 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed61.5 mi (99 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Royal Oak RD over Campo Creek built?

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

What condition is Royal Oak RD over Campo 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 January 2025.

How much traffic does Royal Oak RD over Campo Creek carry?

About 132 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Royal Oak RD over Campo Creek?

The structure is 25 ft (7.7 m) long with a longest span of 6 ft (1.8 m) and a deck 30 ft wide.

Who owns Royal Oak RD over Campo Creek?

It is owned by the County Highway Agency.