US Bridges

Winding Road over Steely Fork Cosumnes

Good

El Dorado County, California · No Data Entered · Structure no. 050356000001014

Built
1975
50 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete
Length
135 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Steely Fork Cosumnes is a concrete slab carrying Winding Road over Steely Fork Cosumnes in El Dorado County, California. It was built in 1975, so it is 50 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 135 ft (41 m) long and 28 ft wide.

CarriesWinding Road
CrossesSteely Fork Cosumnes
LocationNo Data Entered
RouteFederal Lands Road 9N73
Coordinates38.63157, -120.5096
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41 m)
Longest span48 ft (14.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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 Steely Fork Cosumnes built?

It was built in 1975, making it 50 years old in 2025.

What condition is Winding Road over Steely Fork Cosumnes 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 Steely Fork Cosumnes carry?

About 50 vehicles per day (latest count).

How long is Winding Road over Steely Fork Cosumnes?

The structure is 135 ft (41 m) long with a longest span of 48 ft (14.6 m) and a deck 28 ft wide.

Who owns Winding Road over Steely Fork Cosumnes?

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