US Bridges

US Highway 101 SB over State Street

Fair

Santa Barbara County, California · 05-SB-101-13.79-SB · Structure no. 51 0276L

Built
1990
35 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
54,500
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 SB over State Street is a prestressed concrete box beam or girders - multiple carrying US Highway 101 SB over State Street in Santa Barbara County, California. It was built in 1990, so it is 35 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 54,500 vehicles a day, roughly 5% of them trucks, projected to reach 59,482 by 2044. The structure is 85 ft (25.9 m) long and 108 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS Highway 101 SB
CrossesState Street
Location05-SB-101-13.79-SB
RouteU.S. Route 101
Coordinates34.41521, -119.69299
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
Deck7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length85 ft (25.9 m)
Longest span83 ft (25.3 m)
Deck width108 ft (32.8 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,500 (2009)
Projected traffic59,482 by 2044
Trucks5%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway and railroad
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 US Highway 101 SB over State Street built?

It was built in 1990, making it 35 years old in 2025.

What condition is US Highway 101 SB over State Street 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 US Highway 101 SB over State Street carry?

About 54,500 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is US Highway 101 SB over State Street?

The structure is 85 ft (25.9 m) long with a longest span of 83 ft (25.3 m) and a deck 108 ft wide.

Who owns US Highway 101 SB over State Street?

It is owned by the State Highway Agency.