US Bridges

EB State Route 92 over Delaware Street

Fair

San Mateo County, California · 04-SM-092-R11.61-SM · Structure no. 35 0158R

Built
1963
62 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
55,500
2022 count
Owner
State
State Highway Agency

About this bridge

EB State Route 92 over Delaware Street is a concrete continuous box beam or girders - multiple carrying EB State Route 92 over Delaware Street in San Mateo County, California. It was built in 1963, so it is 62 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 6 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 55,500 vehicles a day, roughly 5% of them trucks, projected to reach 86,931 by 2045. The structure is 142 ft (43.3 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesEB State Route 92
CrossesDelaware Street
Location04-SM-092-R11.61-SM
RouteState Highway 92
Coordinates37.55239, -122.3056
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
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 alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating27.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length142 ft (43.3 m)
Longest span82 ft (25 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,500 (2022)
Projected traffic86,931 by 2045
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 EB State Route 92 over Delaware Street built?

It was built in 1963, making it 62 years old in 2025.

What condition is EB State Route 92 over Delaware 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 August 2024.

How much traffic does EB State Route 92 over Delaware Street carry?

About 55,500 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is EB State Route 92 over Delaware Street?

The structure is 142 ft (43.3 m) long with a longest span of 82 ft (25 m) and a deck 40 ft wide.

Who owns EB State Route 92 over Delaware Street?

It is owned by the State Highway Agency.