US Bridges

US Highway 101 NB over Solomon Summit Uc

Fair

Santa Barbara County, California · 05-SB-101-78.69 · Structure no. 51 0191R

Built
1956
69 years old, rebuilt 1995
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
14,500
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 NB over Solomon Summit Uc is a concrete slab carrying US Highway 101 NB over Solomon Summit Uc in Santa Barbara County, California. It was built in 1956 and reconstructed in 1995, so it is 69 years old, older 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 6 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 14,500 vehicles a day, roughly 12% of them trucks, projected to reach 31,323 by 2042. The structure is 31 ft (9.4 m) long and 49 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesUS Highway 101 NB
CrossesSolomon Summit Uc
Location05-SB-101-78.69
RouteU.S. Route 101
CountySanta Barbara County
StateCalifornia
Coordinates34.82525, -120.35872
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating110 US tons
Inventory rating68.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width49 ft (15 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2009)
Projected traffic31,323 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed19.9 mi (32 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 NB over Solomon Summit Uc built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1995.

What condition is US Highway 101 NB over Solomon Summit Uc 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 December 2024.

How much traffic does US Highway 101 NB over Solomon Summit Uc carry?

About 14,500 vehicles per day (2009 count), of which roughly 12% are trucks.

How long is US Highway 101 NB over Solomon Summit Uc?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 49 ft wide.

Who owns US Highway 101 NB over Solomon Summit Uc?

It is owned by the State Highway Agency.