US Bridges

SR 260 over Willow Wash

Fair

Navajo County, Arizona · 22.9 MI West JCT US 60 · Structure no. 06192

Built
1971
54 years old
Condition
Fair
inspected March 2021
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
4,232
2020 count
Owner
State
State Highway Agency

About this bridge

SR 260 over Willow Wash is a concrete continuous culvert carrying SR 260 over Willow Wash in Navajo County, Arizona. It was built in 1971, so it is 54 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 4,232 vehicles a day, roughly 14% of them trucks, projected to reach 4,242 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 260
CrossesWillow Wash
Location22.9 MI West JCT US 60
RouteState Highway 260
CountyNavajo County
StateArizona
Coordinates34.3685, -110.4045
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating93 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,232 (2020)
Projected traffic4,242 by 2040
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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 over Willow Wash built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR 260 over Willow Wash 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 March 2021.

How much traffic does SR 260 over Willow Wash carry?

About 4,232 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SR 260 over Willow Wash?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 260 over Willow Wash?

It is owned by the State Highway Agency.