US Bridges

Winding Road over Edison Spillway

Fair

Fresno County, California · 04S01-27.9 · Structure no. 051552000001001

Built
1954
71 years old, rebuilt 1991
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
41 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Edison Spillway is a concrete tee beam carrying Winding Road over Edison Spillway in Fresno County, California. It was built in 1954 and reconstructed in 1991, so it is 71 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 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 41 ft (12.4 m) long and 14 ft wide.

Location

Open in Google Maps
CarriesWinding Road
CrossesEdison Spillway
Location04S01-27.9
RouteFederal Lands Road 5S08
CountyFresno County
StateCalifornia
Coordinates37.3675, -118.98359
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.4 m)
Longest span40 ft (12.1 m)
Deck width14 ft (4.3 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
CrossesOther
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Winding Road over Edison Spillway built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1991.

What condition is Winding Road over Edison Spillway 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 Winding Road over Edison Spillway carry?

About 50 vehicles per day (latest count).

How long is Winding Road over Edison Spillway?

The structure is 41 ft (12.4 m) long with a longest span of 40 ft (12.1 m) and a deck 14 ft wide.

Who owns Winding Road over Edison Spillway?

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