US Bridges

Benbow DR over Fish Creek

Good

Humboldt County, California · 0.7 MI S/O N JCT HWY 101 · Structure no. 04C0154

Built
1967
58 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
627
1999 count
Owner
County
County Highway Agency

About this bridge

Benbow DR over Fish Creek is a prestressed concrete box beam or girders - multiple carrying Benbow DR over Fish Creek in Humboldt County, California. It was built in 1967, so it is 58 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 627 vehicles a day, roughly 1% of them trucks, projected to reach 1,228 by 2041. The structure is 94 ft (28.8 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBenbow DR
CrossesFish Creek
Location0.7 MI S/O N JCT HWY 101
RouteCounty Highway 0
Coordinates40.05888, -123.7793
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.3 US tons
Inventory rating33.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.8 m)
Longest span92 ft (28.1 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic627 (1999)
Projected traffic1,228 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 DR over Fish Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Benbow DR over Fish 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 July 2023.

How much traffic does Benbow DR over Fish Creek carry?

About 627 vehicles per day (1999 count), of which roughly 1% are trucks.

How long is Benbow DR over Fish Creek?

The structure is 94 ft (28.8 m) long with a longest span of 92 ft (28.1 m) and a deck 35 ft wide.

Who owns Benbow DR over Fish Creek?

It is owned by the County Highway Agency.