US Bridges

IRR SR 264 over Polacca Wash

Good

Navajo County, Arizona · 8.5 MI E JCT SR 87 · Structure no. 02010

Built
1986
39 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
261 ft
4 main spans
Daily traffic
1,798
2022 count
Owner
State
State Highway Agency

About this bridge

IRR SR 264 over Polacca Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying IRR SR 264 over Polacca Wash in Navajo County, Arizona. It was built in 1986, so it is 39 years old, younger 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 1,798 vehicles a day, roughly 14% of them trucks, projected to reach 1,808 by 2042. The structure is 261 ft (79.6 m) long and 47 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

CarriesIRR SR 264
CrossesPolacca Wash
Location8.5 MI E JCT SR 87
RouteState Highway 264
StateArizona
Coordinates35.84089, -110.36626
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length261 ft (79.6 m)
Longest span65 ft (19.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,798 (2022)
Projected traffic1,808 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 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 Polacca Wash built?

It was built in 1986, making it 39 years old in 2025.

What condition is IRR SR 264 over Polacca 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 2024.

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

About 1,798 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is IRR SR 264 over Polacca Wash?

The structure is 261 ft (79.6 m) long with a longest span of 65 ft (19.8 m) and a deck 47 ft wide.

Who owns IRR SR 264 over Polacca Wash?

It is owned by the State Highway Agency.