US Bridges

SR 260; FAS 326 over Wilbur Canyon

Fair

Yavapai County, Arizona · 8.1 MI N JCT I-17 · Structure no. 00781

Built
1963
62 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
274 ft
3 main spans
Daily traffic
8,346
2021 count
Owner
State
State Highway Agency

About this bridge

SR 260; FAS 326 over Wilbur Canyon is a steel continuous stringer/multi-beam or girder carrying SR 260; FAS 326 over Wilbur Canyon in Yavapai County, Arizona. It was built in 1963, so it is 62 years old, older than the Arizona average of 47.8 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 8,346 vehicles a day, roughly 7% of them trucks, projected to reach 8,356 by 2041. The structure is 274 ft (83.5 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 260; FAS 326
CrossesWilbur Canyon
Location8.1 MI N JCT I-17
RouteState Highway 260
CountyYavapai County
StateArizona
Coordinates34.6689, -111.97
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length274 ft (83.5 m)
Longest span103 ft (31.4 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,346 (2021)
Projected traffic8,356 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 260; FAS 326 over Wilbur Canyon built?

It was built in 1963, making it 62 years old in 2025.

What condition is SR 260; FAS 326 over Wilbur Canyon 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 November 2024.

How much traffic does SR 260; FAS 326 over Wilbur Canyon carry?

About 8,346 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR 260; FAS 326 over Wilbur Canyon?

The structure is 274 ft (83.5 m) long with a longest span of 103 ft (31.4 m) and a deck 35 ft wide.

Who owns SR 260; FAS 326 over Wilbur Canyon?

It is owned by the State Highway Agency.