US Bridges

WB State Route 92 over Delaware Street

Good

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

Built
1963
62 years old
Condition
Good
inspected August 2022
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
52,500
2009 count
Owner
State
State Highway Agency

About this bridge

WB State Route 92 over Delaware Street is a concrete continuous box beam or girders - multiple carrying WB 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 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 52,500 vehicles a day, roughly 5% of them trucks, projected to reach 88,095 by 2044. The structure is 142 ft (43.3 m) long and 55 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWB State Route 92
CrossesDelaware Street
Location04-SM-092-R11.61-SM
RouteState Highway 92
Coordinates37.55259, -122.30563
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 inspectionAugust 2022
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating66.5 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 width55 ft (16.7 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,500 (2009)
Projected traffic88,095 by 2044
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 WB State Route 92 over Delaware Street built?

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

What condition is WB State Route 92 over Delaware Street 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 August 2022.

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

About 52,500 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is WB 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 55 ft wide.

Who owns WB State Route 92 over Delaware Street?

It is owned by the State Highway Agency.