US Bridges

U.S. Highway 101 over Hooker Creek Road

Good

Humboldt County, California · 01-HUM-101-R16.51 · Structure no. 04 0213

Built
1965
60 years old
Condition
Good
inspected September 2024
Type
Arch - Deck
Steel
Length
24 ft
1 main span
Daily traffic
6,700
2014 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Hooker Creek Road is a steel arch - deck carrying U.S. Highway 101 over Hooker Creek Road in Humboldt County, California. It was built in 1965, so it is 60 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 6,700 vehicles a day, roughly 16% of them trucks, projected to reach 8,771 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 55.9 mi (90 km).

CarriesU.S. Highway 101
CrossesHooker Creek Road
Location01-HUM-101-R16.51
RouteU.S. Route 101
Coordinates40.16528, -123.78475
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
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2014)
Projected traffic8,771 by 2041
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed55.9 mi (90 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 Hooker Creek Road built?

It was built in 1965, making it 60 years old in 2025.

What condition is U.S. Highway 101 over Hooker Creek Road 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 Hooker Creek Road carry?

About 6,700 vehicles per day (2014 count), of which roughly 16% are trucks.

How long is U.S. Highway 101 over Hooker Creek Road?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m).

Who owns U.S. Highway 101 over Hooker Creek Road?

It is owned by the State Highway Agency.