US Bridges

State Route 1 over US HWY 101 (@pm R48.85)

Good

Santa Barbara County, California · 05-SB-001-R0.01 · Structure no. 51 0239

Built
1967
58 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
176 ft
2 main spans
Daily traffic
7,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over US HWY 101 (@pm R48.85) is a concrete continuous box beam or girders - multiple carrying State Route 1 over US HWY 101 (@pm R48.85) in Santa Barbara County, California. It was built in 1967, so it is 58 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 7,000 vehicles a day, roughly 10% of them trucks, projected to reach 25,952 by 2045. The structure is 176 ft (53.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Route 1
CrossesUS HWY 101 (@pm R48.85)
Location05-SB-001-R0.01
RouteState Highway 1
Coordinates34.50909, -120.22566
Functional classRural Principal Arterial - Other

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 inspectionJuly 2023
Inspection intervalevery 48 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 rating52.5 US tons
Inventory rating37.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length176 ft (53.6 m)
Longest span86 ft (26.2 m)
Deck width42 ft (12.8 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2009)
Projected traffic25,952 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 State Route 1 over US HWY 101 (@pm R48.85) built?

It was built in 1967, making it 58 years old in 2025.

What condition is State Route 1 over US HWY 101 (@pm R48.85) 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 July 2023.

How much traffic does State Route 1 over US HWY 101 (@pm R48.85) carry?

About 7,000 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is State Route 1 over US HWY 101 (@pm R48.85)?

The structure is 176 ft (53.6 m) long with a longest span of 86 ft (26.2 m) and a deck 42 ft wide.

Who owns State Route 1 over US HWY 101 (@pm R48.85)?

It is owned by the State Highway Agency.