US Bridges

U.S. Highway 101 over Candlestick Park Uc

Fair

San Francisco County, California · 04-SF-101-0.03-SF · Structure no. 34 0111

Built
1972
53 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
199,000
2018 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Candlestick Park Uc is a prestressed concrete stringer/multi-beam or girder carrying U.S. Highway 101 over Candlestick Park Uc in San Francisco 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 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 199,000 vehicles a day, roughly 5% of them trucks, projected to reach 258,116 by 2042. The structure is 84 ft (25.6 m) long and 190 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesU.S. Highway 101
CrossesCandlestick Park Uc
Location04-SF-101-0.03-SF
RouteU.S. Route 101
CountySan Francisco County
StateCalifornia
Coordinates37.70874, -122.39483
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span82 ft (25.1 m)
Deck width190 ft (57.8 m)
Roadway width186 ft (56.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic199,000 (2018)
Projected traffic258,116 by 2042
Trucks5%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 U.S. Highway 101 over Candlestick Park Uc built?

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

What condition is U.S. Highway 101 over Candlestick Park Uc 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 December 2023.

How much traffic does U.S. Highway 101 over Candlestick Park Uc carry?

About 199,000 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is U.S. Highway 101 over Candlestick Park Uc?

The structure is 84 ft (25.6 m) long with a longest span of 82 ft (25.1 m) and a deck 190 ft wide.

Who owns U.S. Highway 101 over Candlestick Park Uc?

It is owned by the State Highway Agency.