US Bridges

US Highway 101 NB over Nojoqui Creek

Poor

Santa Barbara County, California · 05-SB-101-55.00 · Structure no. 51 0075R

Built
1956
69 years old
Condition
Poor
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
281 ft
5 main spans
Daily traffic
11,000
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 NB over Nojoqui Creek is a concrete continuous tee beam carrying US Highway 101 NB over Nojoqui Creek in Santa Barbara County, California. It was built in 1956, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 11,000 vehicles a day, roughly 10% of them trucks, projected to reach 17,987 by 2043. The structure is 281 ft (85.6 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUS Highway 101 NB
CrossesNojoqui Creek
Location05-SB-101-55.00
RouteU.S. Route 101
Coordinates34.58305, -120.19363
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating20.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length281 ft (85.6 m)
Longest span61 ft (18.6 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2009)
Projected traffic17,987 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.4 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US Highway 101 NB over Nojoqui Creek built?

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

What condition is US Highway 101 NB over Nojoqui Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does US Highway 101 NB over Nojoqui Creek carry?

About 11,000 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is US Highway 101 NB over Nojoqui Creek?

The structure is 281 ft (85.6 m) long with a longest span of 61 ft (18.6 m) and a deck 33 ft wide.

Who owns US Highway 101 NB over Nojoqui Creek?

It is owned by the State Highway Agency.