US Bridges

U.S. Highway 101 over Finch Creek Road

Good

Humboldt County, California · 01-HUM-101-63.10 · Structure no. 04 0113L

Built
1958
67 years old, rebuilt 2005
Condition
Good
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
21,500
2009 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Finch Creek Road is a concrete continuous tee beam carrying U.S. Highway 101 over Finch Creek Road in Humboldt County, California. It was built in 1958 and reconstructed in 2005, so it is 67 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 21,500 vehicles a day, roughly 8% of them trucks, projected to reach 31,109 by 2045. The structure is 131 ft (40 m) long and 43 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesU.S. Highway 101
CrossesFinch Creek Road
Location01-HUM-101-63.10
RouteU.S. Route 101
Coordinates40.61227, -124.19117
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 inspectionAugust 2023
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 rating35.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length131 ft (40 m)
Longest span52 ft (15.9 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,500 (2009)
Projected traffic31,109 by 2045
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed19.9 mi (32 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 Finch Creek Road built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2005.

What condition is U.S. Highway 101 over Finch 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 August 2023.

How much traffic does U.S. Highway 101 over Finch Creek Road carry?

About 21,500 vehicles per day (2009 count), of which roughly 8% are trucks.

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

The structure is 131 ft (40 m) long with a longest span of 52 ft (15.9 m) and a deck 43 ft wide.

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

It is owned by the State Highway Agency.