US Bridges

S101-W380 Connectr over 7th Avenue

Fair

San Mateo County, California · 04-SM-101-R20.65-SBR · Structure no. 35 0256F

Built
1976
49 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
158 ft
2 main spans
Daily traffic
17,000
1998 count
Owner
State
State Highway Agency

About this bridge

S101-W380 Connectr over 7th Avenue is a concrete continuous box beam or girders - multiple carrying S101-W380 Connectr over 7th Avenue in San Mateo County, California. It was built in 1976, so it is 49 years old, younger 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 17,000 vehicles a day, roughly 6% of them trucks, projected to reach 55,425 by 2040. The structure is 158 ft (48.3 m) long and 43 ft wide.

CarriesS101-W380 Connectr
Crosses7th Avenue
Location04-SM-101-R20.65-SBR
RouteU.S. Route 101
Coordinates37.63478, -122.40626
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 inspectionApril 2023
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 alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length158 ft (48.3 m)
Longest span83 ft (25.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (1998)
Projected traffic55,425 by 2040
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 S101-W380 Connectr over 7th Avenue built?

It was built in 1976, making it 49 years old in 2025.

What condition is S101-W380 Connectr over 7th Avenue 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 2023.

How much traffic does S101-W380 Connectr over 7th Avenue carry?

About 17,000 vehicles per day (1998 count), of which roughly 6% are trucks.

How long is S101-W380 Connectr over 7th Avenue?

The structure is 158 ft (48.3 m) long with a longest span of 83 ft (25.4 m) and a deck 43 ft wide.

Who owns S101-W380 Connectr over 7th Avenue?

It is owned by the State Highway Agency.