US Bridges

Sandia Creek DR over Santa Margarita River

Fair

San Diego County, California · 1.2MI N/O Deluz RD · Structure no. 57C0510

Built
1980
45 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
106 ft
10 main spans
Daily traffic
1,503
2013 count
Owner
County
County Highway Agency

About this bridge

Sandia Creek DR over Santa Margarita River is a concrete culvert carrying Sandia Creek DR over Santa Margarita River in San Diego County, California. It was built in 1980, so it is 45 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,503 vehicles a day, roughly 2% of them trucks, projected to reach 1,625 by 2040. The structure is 106 ft (32.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSandia Creek DR
CrossesSanta Margarita River
Location1.2MI N/O Deluz RD
RouteCounty Highway 0
CountySan Diego County
StateCalifornia
Coordinates33.41378, -117.24139
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadUnknown
Structure length106 ft (32.3 m)
Longest span10 ft (3 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,503 (2013)
Projected traffic1,625 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Sandia Creek DR over Santa Margarita River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Sandia Creek DR over Santa Margarita River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Sandia Creek DR over Santa Margarita River carry?

About 1,503 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Sandia Creek DR over Santa Margarita River?

The structure is 106 ft (32.3 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns Sandia Creek DR over Santa Margarita River?

It is owned by the County Highway Agency.