US Bridges

West Van Duzen RD over Van Duzen River

Good

Trinity County, California · 8 MI N Zenia-Ruth RD · Structure no. 05C0247

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
182 ft
1 main span
Daily traffic
578
2020 count
Owner
County
County Highway Agency

About this bridge

West Van Duzen RD over Van Duzen River is a steel stringer/multi-beam or girder carrying West Van Duzen RD over Van Duzen River in Trinity County, California. It was built in 2013, so it is 12 years old, younger 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 578 vehicles a day, roughly 12% of them trucks, projected to reach 600 by 2042. The structure is 182 ft (55.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWest Van Duzen RD
CrossesVan Duzen River
Location8 MI N Zenia-Ruth RD
RouteCounty Highway 0
CountyTrinity County
StateCalifornia
Coordinates40.37545, -123.50342
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length182 ft (55.5 m)
Longest span175 ft (53.3 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic578 (2020)
Projected traffic600 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 West Van Duzen RD over Van Duzen River built?

It was built in 2013, making it 12 years old in 2025.

What condition is West Van Duzen RD over Van Duzen River 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 June 2023.

How much traffic does West Van Duzen RD over Van Duzen River carry?

About 578 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is West Van Duzen RD over Van Duzen River?

The structure is 182 ft (55.5 m) long with a longest span of 175 ft (53.3 m) and a deck 31 ft wide.

Who owns West Van Duzen RD over Van Duzen River?

It is owned by the County Highway Agency.