US Bridges

Road 25N17 over W. Branch Feather River

Fair

Butte County, California · No Data Entered · Structure no. 050651000001006

Built
1966
59 years old, rebuilt 2000
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Concrete
Length
115 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road 25N17 over W. Branch Feather River is a concrete box beam or girders - single or spread carrying Road 25N17 over W. Branch Feather River in Butte County, California. It was built in 1966 and reconstructed in 2000, so it is 59 years old, older 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 50 vehicles a day, projected to reach 30 by 2045. The structure is 115 ft (35.1 m) long and 15 ft wide.

Location

Open in Google Maps
CarriesRoad 25N17
CrossesW. Branch Feather River
LocationNo Data Entered
RouteFederal Lands Road 25N17
CountyButte County
StateCalifornia
Coordinates40.00008, -121.527
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length115 ft (35.1 m)
Longest span115 ft (35.1 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic30 by 2045
Trucks—
Lanes on structure2
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 Road 25N17 over W. Branch Feather River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2000.

What condition is Road 25N17 over W. Branch Feather 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 May 2023.

How much traffic does Road 25N17 over W. Branch Feather River carry?

About 50 vehicles per day (latest count).

How long is Road 25N17 over W. Branch Feather River?

The structure is 115 ft (35.1 m) long with a longest span of 115 ft (35.1 m) and a deck 15 ft wide.

Who owns Road 25N17 over W. Branch Feather River?

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