US Bridges

IRR US 89A over Wash

Good

Coconino County, Arizona · 7.5 MI N JCT US 89 · Structure no. 06898

Built
1991
34 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
1,445
2022 count
Owner
State
State Highway Agency

About this bridge

IRR US 89A over Wash is a concrete continuous culvert carrying IRR US 89A over Wash in Coconino County, Arizona. It was built in 1991, so it is 34 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 1,445 vehicles a day, roughly 11% of them trucks, projected to reach 1,455 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIRR US 89A
CrossesWash
Location7.5 MI N JCT US 89
RouteU.S. Route 89
CountyCoconino County
StateArizona
Coordinates36.7361, -111.6387
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
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 alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 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 traffic1,445 (2022)
Projected traffic1,455 by 2042
Trucks11%
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 US 89A over Wash built?

It was built in 1991, making it 34 years old in 2025.

What condition is IRR US 89A over 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 September 2024.

How much traffic does IRR US 89A over Wash carry?

About 1,445 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is IRR US 89A over Wash?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns IRR US 89A over Wash?

It is owned by the State Highway Agency.