US Bridges

Black Road over Solomon Canyon Creek

Good

Santa Barbara County, California · 0.2 MI N State Route 1 · Structure no. 51C0369

Built
2014
11 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
4,000
2014 count
Owner
County
County Highway Agency

About this bridge

Black Road over Solomon Canyon Creek is a prestressed concrete box beam or girders - multiple carrying Black Road over Solomon Canyon Creek in Santa Barbara County, California. It was built in 2014, so it is 11 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 4,000 vehicles a day, roughly 5% of them trucks, projected to reach 7,415 by 2042. The structure is 94 ft (28.7 m) long and 38 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesBlack Road
CrossesSolomon Canyon Creek
Location0.2 MI N State Route 1
RouteCounty Highway 0
Coordinates34.88355, -120.49526
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.
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 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length94 ft (28.7 m)
Longest span94 ft (28.7 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2014)
Projected traffic7,415 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Black Road over Solomon Canyon Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Black Road over Solomon Canyon 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 Black Road over Solomon Canyon Creek carry?

About 4,000 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Black Road over Solomon Canyon Creek?

The structure is 94 ft (28.7 m) long with a longest span of 94 ft (28.7 m) and a deck 38 ft wide.

Who owns Black Road over Solomon Canyon Creek?

It is owned by the County Highway Agency.