US Bridges

State Route 154 over Branch Cota Creek

Good

Santa Barbara County, California · 05-SB-154-R6.94 · Structure no. 51 0267

Built
1936
89 years old, rebuilt 1971
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
9,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 154 over Branch Cota Creek is a concrete continuous culvert carrying State Route 154 over Branch Cota Creek in Santa Barbara County, California. It was built in 1936 and reconstructed in 1971, so it is 89 years old, older 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 9,000 vehicles a day, roughly 7% of them trucks, projected to reach 29,607 by 2041. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesState Route 154
CrossesBranch Cota Creek
Location05-SB-154-R6.94
RouteState Highway 154
Coordinates34.62249, -120.06942
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2009)
Projected traffic29,607 by 2041
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 State Route 154 over Branch Cota Creek built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1971.

What condition is State Route 154 over Branch Cota Creek 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 September 2023.

How much traffic does State Route 154 over Branch Cota Creek carry?

About 9,000 vehicles per day (2009 count), of which roughly 7% are trucks.

How long is State Route 154 over Branch Cota Creek?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).

Who owns State Route 154 over Branch Cota Creek?

It is owned by the State Highway Agency.