US Bridges

SR 260 over Town Wash

Good

Navajo County, Arizona · 15.9 MI W JCT US 60 · Structure no. 06557

Built
1973
52 years old
Condition
Good
inspected March 2021
Type
Culvert
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
4,214
2020 count
Owner
State
State Highway Agency

About this bridge

SR 260 over Town Wash is a concrete continuous culvert carrying SR 260 over Town Wash in Navajo County, Arizona. It was built in 1973, so it is 52 years old, older than the Arizona average of 47.8 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 4,214 vehicles a day, roughly 13% of them trucks, projected to reach 4,224 by 2040. The structure is 36 ft (11 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 260
CrossesTown Wash
Location15.9 MI W JCT US 60
RouteState Highway 260
CountyNavajo County
StateArizona
Coordinates34.3443, -110.2914
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,214 (2020)
Projected traffic4,224 by 2040
Trucks13%
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 Town Wash built?

It was built in 1973, making it 52 years old in 2025.

What condition is SR 260 over Town Wash 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 March 2021.

How much traffic does SR 260 over Town Wash carry?

About 4,214 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is SR 260 over Town Wash?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m).

Who owns SR 260 over Town Wash?

It is owned by the State Highway Agency.