US Bridges

Santo Road over State Route 52

Fair

San Diego County, California · 11-SD-052-8.70-SD · Structure no. 57 1000

Built
1993
32 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
254 ft
2 main spans
Daily traffic
19,000
2014 count
Owner
State
State Highway Agency

About this bridge

Santo Road over State Route 52 is a prestressed concrete continuous box beam or girders - single or spread carrying Santo Road over State Route 52 in San Diego County, California. It was built in 1993, so it is 32 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 5 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 19,000 vehicles a day, roughly 1% of them trucks, projected to reach 20,000 by 2043. The structure is 254 ft (77.4 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSanto Road
CrossesState Route 52
Location11-SD-052-8.70-SD
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.84132, -117.09733
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length254 ft (77.4 m)
Longest span146 ft (44.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2014)
Projected traffic20,000 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Santo Road over State Route 52 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Santo Road over State Route 52 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 May 2023.

How much traffic does Santo Road over State Route 52 carry?

About 19,000 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Santo Road over State Route 52?

The structure is 254 ft (77.4 m) long with a longest span of 146 ft (44.5 m) and a deck 43 ft wide.

Who owns Santo Road over State Route 52?

It is owned by the State Highway Agency.