US Bridges

U.S. Highway 101 over Silver Creek

Fair

Santa Clara County, California · 04-SCL-101-36.37-SJS · Structure no. 37 0097

Built
1957
68 years old, rebuilt 1992
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
63 ft
3 main spans
Daily traffic
174,000
1998 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Silver Creek is a concrete continuous slab carrying U.S. Highway 101 over Silver Creek in Santa Clara County, California. It was built in 1957 and reconstructed in 1992, so it is 68 years old, older 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 6 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 174,000 vehicles a day, roughly 7% of them trucks, projected to reach 305,093 by 2043. The structure is 63 ft (19.3 m) long and 156 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesU.S. Highway 101
CrossesSilver Creek
Location04-SCL-101-36.37-SJS
RouteU.S. Route 101
Coordinates37.35662, -121.8689
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable 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 spans3
Design loadHS 20
Structure length63 ft (19.3 m)
Longest span21 ft (6.3 m)
Deck width156 ft (47.7 m)
Roadway width151 ft (46 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic174,000 (1998)
Projected traffic305,093 by 2043
Trucks7%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. Highway 101 over Silver Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1992.

What condition is U.S. Highway 101 over Silver Creek 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 February 2025.

How much traffic does U.S. Highway 101 over Silver Creek carry?

About 174,000 vehicles per day (1998 count), of which roughly 7% are trucks.

How long is U.S. Highway 101 over Silver Creek?

The structure is 63 ft (19.3 m) long with a longest span of 21 ft (6.3 m) and a deck 156 ft wide.

Who owns U.S. Highway 101 over Silver Creek?

It is owned by the State Highway Agency.