US Bridges

State Route 94 over 28th Street

Fair

San Diego County, California · 11-SD-094-2.21-SD · Structure no. 57 0359

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
97 ft
1 main span
Daily traffic
122,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 94 over 28th Street is a concrete box beam or girders - multiple carrying State Route 94 over 28th Street in San Diego County, California. It was built in 1959, so it is 66 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 122,000 vehicles a day, roughly 4% of them trucks, projected to reach 212,814 by 2045. The structure is 97 ft (29.6 m) long and 147 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 94
Crosses28th Street
Location11-SD-094-2.21-SD
RouteState Highway 94
Coordinates32.71306, -117.13401
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span94 ft (28.7 m)
Deck width147 ft (44.8 m)
Roadway width139 ft (42.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122,000 (2020)
Projected traffic212,814 by 2045
Trucks4%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 94 over 28th Street built?

It was built in 1959, making it 66 years old in 2025.

What condition is State Route 94 over 28th Street 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 October 2024.

How much traffic does State Route 94 over 28th Street carry?

About 122,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is State Route 94 over 28th Street?

The structure is 97 ft (29.6 m) long with a longest span of 94 ft (28.7 m) and a deck 147 ft wide.

Who owns State Route 94 over 28th Street?

It is owned by the State Highway Agency.