US Bridges

Sf AIRPORT-S101 on over Airport Property

Fair

San Mateo County, California · A1 - B7 of 35 0274K · Structure no. 35C0177

Built
1987
38 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
151 ft
6 main spans
Daily traffic
10,270
2010 count
Owner
Local
Other Local Agency

About this bridge

Sf AIRPORT-S101 on over Airport Property is a concrete continuous slab carrying Sf AIRPORT-S101 on over Airport Property in San Mateo County, California. It was built in 1987, so it is 38 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 10,270 vehicles a day, roughly 5% of them trucks, projected to reach 25,304 by 2042. The structure is 151 ft (46 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSf AIRPORT-S101 on
CrossesAirport Property
LocationA1 - B7 of 35 0274K
RouteCounty Highway 0
CountySan Mateo County
StateCalifornia
Coordinates37.61392, -122.39584
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length151 ft (46 m)
Longest span28 ft (8.4 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic10,270 (2010)
Projected traffic25,304 by 2042
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Sf AIRPORT-S101 on over Airport Property built?

It was built in 1987, making it 38 years old in 2025.

What condition is Sf AIRPORT-S101 on over Airport Property 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 January 2024.

How much traffic does Sf AIRPORT-S101 on over Airport Property carry?

About 10,270 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Sf AIRPORT-S101 on over Airport Property?

The structure is 151 ft (46 m) long with a longest span of 28 ft (8.4 m) and a deck 39 ft wide.

Who owns Sf AIRPORT-S101 on over Airport Property?

It is owned by the Other Local Agency.