US Bridges

Fdr 91-40-2 over S. Fk. Yuba River

FairPosted for load

Placer County, California · S28 T17N R13E · Structure no. 051755000001020

Built
1938
87 years old
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
120 ft
4 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 91-40-2 over S. Fk. Yuba River is a steel girder and floorbeam system carrying Fdr 91-40-2 over S. Fk. Yuba River in Placer County, California. It was built in 1938, so it is 87 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 120 ft (36.6 m) long and 12 ft wide.

Location

Open in Google Maps
CarriesFdr 91-40-2
CrossesS. Fk. Yuba River
LocationS28 T17N R13E
RouteFederal Lands Road 9140-
CountyPlacer County
StateCalifornia
Coordinates39.30717, -120.5185
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation*: *
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating—
Inventory rating—

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans4
Design loadH 15
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 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 Fdr 91-40-2 over S. Fk. Yuba River built?

It was built in 1938, making it 87 years old in 2025.

What condition is Fdr 91-40-2 over S. Fk. Yuba 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 September 2024.

How much traffic does Fdr 91-40-2 over S. Fk. Yuba River carry?

About 50 vehicles per day (latest count).

How long is Fdr 91-40-2 over S. Fk. Yuba River?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 12 ft wide.

Who owns Fdr 91-40-2 over S. Fk. Yuba River?

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