US Bridges

Winding Road over Chilkoot Creek

Fair

Madera County, California · No Data Entered · Structure no. 051551000001008

Built
1974
51 years old
Condition
Fair
inspected June 2023
Type
Frame
Concrete
Length
157 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Chilkoot Creek is a concrete frame carrying Winding Road over Chilkoot Creek in Madera County, California. It was built in 1974, so it is 51 years old, younger 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 6 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 75 by 2045. The structure is 157 ft (47.8 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesWinding Road
CrossesChilkoot Creek
LocationNo Data Entered
RouteFederal Lands Road 5S00
CountyMadera County
StateCalifornia
Coordinates37.3706, -119.5345
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length157 ft (47.8 m)
Longest span60 ft (18.3 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.6 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 Chilkoot Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Winding Road over Chilkoot Creek 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 June 2023.

How much traffic does Winding Road over Chilkoot Creek carry?

About 50 vehicles per day (latest count).

How long is Winding Road over Chilkoot Creek?

The structure is 157 ft (47.8 m) long with a longest span of 60 ft (18.3 m) and a deck 34 ft wide.

Who owns Winding Road over Chilkoot Creek?

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