US Bridges

Benbow Drive over E Br South Fork Eel Riv

Good

Humboldt County, California · 0.5 MI N/O Oakcrest Ct · Structure no. 04C0101

Built
1970
55 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
300 ft
3 main spans
Daily traffic
316
2011 count
Owner
County
County Highway Agency

About this bridge

Benbow Drive over E Br South Fork Eel Riv is a concrete continuous box beam or girders - multiple carrying Benbow Drive over E Br South Fork Eel Riv in Humboldt County, California. It was built in 1970, so it is 55 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 316 vehicles a day, roughly 2% of them trucks, projected to reach 655 by 2045. The structure is 300 ft (91.4 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBenbow Drive
CrossesE Br South Fork Eel Riv
Location0.5 MI N/O Oakcrest Ct
RouteCounty Highway 0
Coordinates40.07206, -123.78764
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating40 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length300 ft (91.4 m)
Longest span115 ft (35.1 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic316 (2011)
Projected traffic655 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 Benbow Drive over E Br South Fork Eel Riv built?

It was built in 1970, making it 55 years old in 2025.

What condition is Benbow Drive over E Br South Fork Eel Riv 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 July 2023.

How much traffic does Benbow Drive over E Br South Fork Eel Riv carry?

About 316 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Benbow Drive over E Br South Fork Eel Riv?

The structure is 300 ft (91.4 m) long with a longest span of 115 ft (35.1 m) and a deck 34 ft wide.

Who owns Benbow Drive over E Br South Fork Eel Riv?

It is owned by the County Highway Agency.