US Bridges

Winding Road over Long Canyon

Good

Placer County, California · No Data Entered · Structure no. 050353000001049

Built
1987
38 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Long Canyon is a prestressed concrete tee beam carrying Winding Road over Long Canyon in Placer County, California. It was built in 1987, so it is 38 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 62 ft (18.9 m) long and 18 ft wide.

Location

Open in Google Maps
CarriesWinding Road
CrossesLong Canyon
LocationNo Data Entered
RouteFederal Lands Road 13N65
CountyPlacer County
StateCalifornia
Coordinates38.99822, -120.55298
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.8 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 Winding Road over Long Canyon built?

It was built in 1987, making it 38 years old in 2025.

What condition is Winding Road over Long Canyon 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 September 2023.

How much traffic does Winding Road over Long Canyon carry?

About 50 vehicles per day (latest count).

How long is Winding Road over Long Canyon?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 18 ft wide.

Who owns Winding Road over Long Canyon?

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