US Bridges

Tepusquet Road over Colson Creek

Good

Santa Barbara County, California · At Colson Canyon Road · Structure no. 51C0101

Built
1952
73 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Concrete
Length
33 ft
1 main span
Daily traffic
344
2014 count
Owner
County
County Highway Agency

About this bridge

Tepusquet Road over Colson Creek is a concrete stringer/multi-beam or girder carrying Tepusquet Road over Colson Creek in Santa Barbara County, California. It was built in 1952, so it is 73 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 344 vehicles a day, roughly 21% of them trucks, projected to reach 579 by 2042. The structure is 33 ft (10 m) long and 25 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

CarriesTepusquet Road
CrossesColson Creek
LocationAt Colson Canyon Road
RouteCounty Highway 0
Coordinates34.92356, -120.21986
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.1 US tons
Inventory rating24.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length33 ft (10 m)
Longest span31 ft (9.5 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic344 (2014)
Projected traffic579 by 2042
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Tepusquet Road over Colson Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Tepusquet Road over Colson 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 January 2025.

How much traffic does Tepusquet Road over Colson Creek carry?

About 344 vehicles per day (2014 count), of which roughly 21% are trucks.

How long is Tepusquet Road over Colson Creek?

The structure is 33 ft (10 m) long with a longest span of 31 ft (9.5 m) and a deck 25 ft wide.

Who owns Tepusquet Road over Colson Creek?

It is owned by the County Highway Agency.