US Bridges

West Beaver Road over West Fork Beaver Creek

Poor

Siskiyou County, California · Beaver · Structure no. 050551000001029

Built
1983
42 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
65 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

West Beaver Road over West Fork Beaver Creek is a concrete stringer/multi-beam or girder carrying West Beaver Road over West Fork Beaver Creek in Siskiyou County, California. It was built in 1983, so it is 42 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 65 ft (19.8 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesWest Beaver Road
CrossesWest Fork Beaver Creek
LocationBeaver
RouteFederal Lands Road 47N01
CountySiskiyou County
StateCalifornia
Coordinates41.95459, -122.87285
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation*: *
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating—
Inventory rating—

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span64 ft (19.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was West Beaver Road over West Fork Beaver Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is West Beaver Road over West Fork Beaver Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does West Beaver Road over West Fork Beaver Creek carry?

About 50 vehicles per day (latest count).

How long is West Beaver Road over West Fork Beaver Creek?

The structure is 65 ft (19.8 m) long with a longest span of 64 ft (19.4 m) and a deck 16 ft wide.

Who owns West Beaver Road over West Fork Beaver Creek?

It is owned by the U.S. Forest Service.