US Bridges

US Highway 101 NB over S Higuera ST

Good

San Luis Obispo County, California · 05-SLO-101-R24.30 · Structure no. 49 0115R

Built
1963
62 years old, rebuilt 2017
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
161 ft
3 main spans
Daily traffic
31,000
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 NB over S Higuera ST is a concrete continuous box beam or girders - multiple carrying US Highway 101 NB over S Higuera ST in San Luis Obispo County, California. It was built in 1963 and reconstructed in 2017, so it is 62 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 31,000 vehicles a day, roughly 9% of them trucks, projected to reach 47,278 by 2044. The structure is 161 ft (49.1 m) long and 42 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesUS Highway 101 NB
CrossesS Higuera ST
Location05-SLO-101-R24.30
RouteU.S. Route 101
Coordinates35.22399, -120.69135
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.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating28.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length161 ft (49.1 m)
Longest span71 ft (21.5 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,000 (2009)
Projected traffic47,278 by 2044
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 S Higuera ST built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2017.

What condition is US Highway 101 NB over S Higuera ST 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 2024.

How much traffic does US Highway 101 NB over S Higuera ST carry?

About 31,000 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is US Highway 101 NB over S Higuera ST?

The structure is 161 ft (49.1 m) long with a longest span of 71 ft (21.5 m) and a deck 42 ft wide.

Who owns US Highway 101 NB over S Higuera ST?

It is owned by the State Highway Agency.