US Bridges

State Route 52 WB over Park

Fair

San Diego County, California · 11-SD-052-1.93-SD · Structure no. 57 0771L

Built
1970
55 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
48,500
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 52 WB over Park is a prestressed concrete box beam or girders - single or spread carrying State Route 52 WB over Park 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 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 48,500 vehicles a day, roughly 3% of them trucks, projected to reach 57,431 by 2043. The structure is 88 ft (26.8 m) long and 51 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesState Route 52 WB
CrossesPark
Location11-SD-052-1.93-SD
RouteState Highway 52
Coordinates32.84588, -117.20914
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span86 ft (26.2 m)
Deck width51 ft (15.5 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,500 (2019)
Projected traffic57,431 by 2043
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed8.1 mi (13 km)
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 WB over Park built?

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

What condition is State Route 52 WB over Park 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 February 2025.

How much traffic does State Route 52 WB over Park carry?

About 48,500 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is State Route 52 WB over Park?

The structure is 88 ft (26.8 m) long with a longest span of 86 ft (26.2 m) and a deck 51 ft wide.

Who owns State Route 52 WB over Park?

It is owned by the State Highway Agency.