US Bridges

State Route 52 EB over Regents Road

Good

San Diego County, California · 11-SD-052-1.35-SD · Structure no. 57 0743R

Built
1970
55 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
166 ft
1 main span
Daily traffic
49,500
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 52 EB over Regents Road is a prestressed concrete box beam or girders - single or spread carrying State Route 52 EB over Regents Road in San Diego 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 49,500 vehicles a day, roughly 3% of them trucks, projected to reach 57,431 by 2043. The structure is 166 ft (50.6 m) long and 41 ft wide.

CarriesState Route 52 EB
CrossesRegents Road
Location11-SD-052-1.35-SD
RouteState Highway 52
Coordinates32.84181, -117.21753
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span164 ft (50 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,500 (2019)
Projected traffic57,431 by 2043
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 State Route 52 EB over Regents Road built?

It was built in 1970, making it 55 years old in 2025.

What condition is State Route 52 EB over Regents Road 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 February 2025.

How much traffic does State Route 52 EB over Regents Road carry?

About 49,500 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is State Route 52 EB over Regents Road?

The structure is 166 ft (50.6 m) long with a longest span of 164 ft (50 m) and a deck 41 ft wide.

Who owns State Route 52 EB over Regents Road?

It is owned by the State Highway Agency.