US Bridges

State Route 154 over US HWY 101 (@pm 63.30)

Good

Santa Barbara County, California · 05-SB-154-0.50 · Structure no. 51 0329

Built
2000
25 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
213 ft
2 main spans
Daily traffic
10,100
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 154 over US HWY 101 (@pm 63.30) is a prestressed concrete continuous box beam or girders - multiple carrying State Route 154 over US HWY 101 (@pm 63.30) in Santa Barbara County, California. It was built in 2000, so it is 25 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,100 vehicles a day, roughly 8% of them trucks, projected to reach 29,706 by 2042. The structure is 213 ft (65 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesState Route 154
CrossesUS HWY 101 (@pm 63.30)
Location05-SB-154-0.50
RouteState Highway 154
Coordinates34.68786, -120.15803
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length213 ft (65 m)
Longest span107 ft (32.5 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,100 (2009)
Projected traffic29,706 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

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 State Route 154 over US HWY 101 (@pm 63.30) built?

It was built in 2000, making it 25 years old in 2025.

What condition is State Route 154 over US HWY 101 (@pm 63.30) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does State Route 154 over US HWY 101 (@pm 63.30) carry?

About 10,100 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is State Route 154 over US HWY 101 (@pm 63.30)?

The structure is 213 ft (65 m) long with a longest span of 107 ft (32.5 m) and a deck 43 ft wide.

Who owns State Route 154 over US HWY 101 (@pm 63.30)?

It is owned by the State Highway Agency.