US Bridges

IRR SR 264 over Cienega Wash

Good

Navajo County, Arizona · 16.4 MI E JCT SR 87 · Structure no. 05104

Built
1960
65 years old
Condition
Good
inspected July 2022
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
1,591
2021 count
Owner
State
State Highway Agency

About this bridge

IRR SR 264 over Cienega Wash is a concrete continuous culvert carrying IRR SR 264 over Cienega Wash in Navajo County, Arizona. It was built in 1960, so it is 65 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 1,591 vehicles a day, roughly 7% of them trucks, projected to reach 1,601 by 2041. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIRR SR 264
CrossesCienega Wash
Location16.4 MI E JCT SR 87
RouteState Highway 264
CountyNavajo County
StateArizona
Coordinates35.839, -110.233
Functional classRural Minor Arterial

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 inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.6 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 traffic1,591 (2021)
Projected traffic1,601 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 IRR SR 264 over Cienega Wash built?

It was built in 1960, making it 65 years old in 2025.

What condition is IRR SR 264 over Cienega 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 July 2022.

How much traffic does IRR SR 264 over Cienega Wash carry?

About 1,591 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is IRR SR 264 over Cienega Wash?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns IRR SR 264 over Cienega Wash?

It is owned by the State Highway Agency.