US Bridges

SB US Highway 101 over Bernal Road

Fair

Santa Clara County, California · 04-SCL-101-R27.00-SJS · Structure no. 37 0347L

Built
1982
43 years old, rebuilt 2004
Condition
Fair
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
214 ft
2 main spans
Daily traffic
50,000
2009 count
Owner
State
State Highway Agency

About this bridge

SB US Highway 101 over Bernal Road is a prestressed concrete continuous box beam or girders - multiple carrying SB US Highway 101 over Bernal Road in Santa Clara County, California. It was built in 1982 and reconstructed in 2004, so it is 43 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 50,000 vehicles a day, roughly 9% of them trucks, projected to reach 87,009 by 2045. The structure is 214 ft (65.2 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSB US Highway 101
CrossesBernal Road
Location04-SCL-101-R27.00-SJS
RouteU.S. Route 101
Coordinates37.24384, -121.77244
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
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

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length214 ft (65.2 m)
Longest span106 ft (32.4 m)
Deck width69 ft (21.1 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,000 (2009)
Projected traffic87,009 by 2045
Trucks9%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 SB US Highway 101 over Bernal Road built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2004.

What condition is SB US Highway 101 over Bernal Road 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 2023.

How much traffic does SB US Highway 101 over Bernal Road carry?

About 50,000 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is SB US Highway 101 over Bernal Road?

The structure is 214 ft (65.2 m) long with a longest span of 106 ft (32.4 m) and a deck 69 ft wide.

Who owns SB US Highway 101 over Bernal Road?

It is owned by the State Highway Agency.