US Bridges

Market Street over 28th ST

Fair

San Diego County, California · 0.1 M S/O SR 94 · Structure no. 57C0095

Built
1928
97 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
68 ft
1 main span
Daily traffic
9,761
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Market Street over 28th ST is a concrete tee beam carrying Market Street over 28th ST in San Diego County, California. It was built in 1928, so it is 97 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 9,761 vehicles a day, roughly 2% of them trucks, projected to reach 12,203 by 2044. The structure is 68 ft (20.7 m) long and 81 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMarket Street
Crosses28th ST
Location0.1 M S/O SR 94
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.71156, -117.13397
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating45.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length68 ft (20.7 m)
Longest span66 ft (20.1 m)
Deck width81 ft (24.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,761 (2022)
Projected traffic12,203 by 2044
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Market Street over 28th ST built?

It was built in 1928, making it 97 years old in 2025.

What condition is Market Street over 28th ST 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 April 2024.

How much traffic does Market Street over 28th ST carry?

About 9,761 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Market Street over 28th ST?

The structure is 68 ft (20.7 m) long with a longest span of 66 ft (20.1 m) and a deck 81 ft wide.

Who owns Market Street over 28th ST?

It is owned by the City or Municipal Highway Agency.