US Bridges

State Route 254 over Bear Creek

Good

Humboldt County, California · 01-HUM-254-43.02 · Structure no. 04 0012

Built
1939
86 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
175 ft
5 main spans
Daily traffic
330
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 254 over Bear Creek is a concrete continuous tee beam carrying State Route 254 over Bear Creek in Humboldt County, California. It was built in 1939, so it is 86 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 330 vehicles a day, projected to reach 428 by 2041. The structure is 175 ft (53.3 m) long and 31 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

CarriesState Route 254
CrossesBear Creek
Location01-HUM-254-43.02
RouteState Highway 254
Coordinates40.43101, -123.98457
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length175 ft (53.3 m)
Longest span53 ft (16.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2014)
Projected traffic428 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.9 mi (98 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 254 over Bear Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is State Route 254 over Bear Creek 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 2024.

How much traffic does State Route 254 over Bear Creek carry?

About 330 vehicles per day (2014 count).

How long is State Route 254 over Bear Creek?

The structure is 175 ft (53.3 m) long with a longest span of 53 ft (16.2 m) and a deck 31 ft wide.

Who owns State Route 254 over Bear Creek?

It is owned by the State Highway Agency.