US Bridges

Bear Canyon Road over South Fork Eel River

Fair

Humboldt County, California · 0.3 MI Sw/O Redwood DR · Structure no. 04C0129

Built
2000
25 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
650 ft
4 main spans
Daily traffic
158
2011 count
Owner
County
County Highway Agency

About this bridge

Bear Canyon Road over South Fork Eel River is a prestressed concrete continuous box beam or girders - multiple carrying Bear Canyon Road over South Fork Eel River in Humboldt County, California. It was built in 2000, so it is 25 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 158 vehicles a day, roughly 1% of them trucks, projected to reach 326 by 2045. The structure is 650 ft (198 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBear Canyon Road
CrossesSouth Fork Eel River
Location0.3 MI Sw/O Redwood DR
RouteCounty Highway 0
Coordinates40.10653, -123.79826
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length650 ft (198 m)
Longest span195 ft (59.4 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic158 (2011)
Projected traffic326 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Bear Canyon Road over South Fork Eel River built?

It was built in 2000, making it 25 years old in 2025.

What condition is Bear Canyon Road over South Fork Eel River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Bear Canyon Road over South Fork Eel River carry?

About 158 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Bear Canyon Road over South Fork Eel River?

The structure is 650 ft (198 m) long with a longest span of 195 ft (59.4 m) and a deck 31 ft wide.

Who owns Bear Canyon Road over South Fork Eel River?

It is owned by the County Highway Agency.