US Bridges

U.S. Highway 101 over Oakcrest Court

Good

Humboldt County, California · 01-HUM-101-R8.60 · Structure no. 04 0211

Built
1969
56 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
5,700
2014 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Oakcrest Court is a concrete continuous box beam or girders - multiple carrying U.S. Highway 101 over Oakcrest Court in Humboldt County, California. It was built in 1969, so it is 56 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 5,700 vehicles a day, roughly 16% of them trucks, projected to reach 6,036 by 2046. The structure is 131 ft (39.9 m) long and 62 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

CarriesU.S. Highway 101
CrossesOakcrest Court
Location01-HUM-101-R8.60
RouteU.S. Route 101
Coordinates40.06514, -123.78571
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 inspectionSeptember 2024
Inspection intervalevery 24 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 rating50.4 US tons
Inventory rating36.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length131 ft (39.9 m)
Longest span63 ft (19.2 m)
Deck width62 ft (18.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2014)
Projected traffic6,036 by 2046
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed37.9 mi (61 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 U.S. Highway 101 over Oakcrest Court built?

It was built in 1969, making it 56 years old in 2025.

What condition is U.S. Highway 101 over Oakcrest Court 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 September 2024.

How much traffic does U.S. Highway 101 over Oakcrest Court carry?

About 5,700 vehicles per day (2014 count), of which roughly 16% are trucks.

How long is U.S. Highway 101 over Oakcrest Court?

The structure is 131 ft (39.9 m) long with a longest span of 63 ft (19.2 m) and a deck 62 ft wide.

Who owns U.S. Highway 101 over Oakcrest Court?

It is owned by the State Highway Agency.