US Bridges

S101-S84 Connector over UP RR Spur & Veterans Bl

Good

San Mateo County, California · 04-SM-101-5.50-RDWC · Structure no. 35 0065F

Built
1972
53 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
386 ft
5 main spans
Daily traffic
12,200
1998 count
Owner
State
State Highway Agency

About this bridge

S101-S84 Connector over UP RR Spur & Veterans Bl is a concrete continuous box beam or girders - multiple carrying S101-S84 Connector over UP RR Spur & Veterans Bl in San Mateo County, California. It was built in 1972, so it is 53 years old, younger 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 12,200 vehicles a day, roughly 2% of them trucks, projected to reach 27,323 by 2043. The structure is 386 ft (117.7 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesS101-S84 Connector
CrossesUP RR Spur & Veterans Bl
Location04-SM-101-5.50-RDWC
RouteU.S. Route 101
CountySan Mateo County
StateCalifornia
Coordinates37.48869, -122.21452
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94.9 US tons
Inventory rating57 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length386 ft (117.7 m)
Longest span81 ft (24.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,200 (1998)
Projected traffic27,323 by 2043
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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-S84 Connector over UP RR Spur & Veterans Bl built?

It was built in 1972, making it 53 years old in 2025.

What condition is S101-S84 Connector over UP RR Spur & Veterans Bl 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 2023.

How much traffic does S101-S84 Connector over UP RR Spur & Veterans Bl carry?

About 12,200 vehicles per day (1998 count), of which roughly 2% are trucks.

How long is S101-S84 Connector over UP RR Spur & Veterans Bl?

The structure is 386 ft (117.7 m) long with a longest span of 81 ft (24.7 m) and a deck 26 ft wide.

Who owns S101-S84 Connector over UP RR Spur & Veterans Bl?

It is owned by the State Highway Agency.