US Bridges

US Highway 101 SB over San Jose Creek

Poor

Santa Barbara County, California · 05-SB-101-21.62 · Structure no. 51 0163L

Built
1946
79 years old, rebuilt 1989
Condition
Poor
inspected February 2025
Type
Slab
Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
60,500
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 SB over San Jose Creek is a concrete continuous slab carrying US Highway 101 SB over San Jose Creek in Santa Barbara County, California. It was built in 1946 and reconstructed in 1989, so it is 79 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 60,500 vehicles a day, roughly 4% of them trucks, projected to reach 61,368 by 2043. The structure is 93 ft (28.3 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS Highway 101 SB
CrossesSan Jose Creek
Location05-SB-101-21.62
RouteU.S. Route 101
Coordinates34.44081, -119.81668
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span30 ft (9.1 m)
Deck width58 ft (17.7 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,500 (2009)
Projected traffic61,368 by 2043
Trucks4%
Lanes on structure3
Traffic directionOne-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$841,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US Highway 101 SB over San Jose Creek built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1989.

What condition is US Highway 101 SB over San Jose Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2025.

How much traffic does US Highway 101 SB over San Jose Creek carry?

About 60,500 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is US Highway 101 SB over San Jose Creek?

The structure is 93 ft (28.3 m) long with a longest span of 30 ft (9.1 m) and a deck 58 ft wide.

Who owns US Highway 101 SB over San Jose Creek?

It is owned by the State Highway Agency.