US Bridges

IRR US 89 over Wash

Good

Coconino County, Arizona · 14.05 MI S JCT SR 64 · Structure no. 04810

Built
1935
90 years old, rebuilt 1987
Condition
Good
inspected August 2022
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
7,040
2020 count
Owner
State
State Highway Agency

About this bridge

IRR US 89 over Wash is a concrete continuous culvert carrying IRR US 89 over Wash in Coconino County, Arizona. It was built in 1935 and reconstructed in 1987, so it is 90 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 7,040 vehicles a day, roughly 19% of them trucks, projected to reach 7,050 by 2040. The structure is 21 ft (6.4 m) long and 85 ft wide. If it were closed, the detour would be 77.1 mi (124 km).

Location

Open in Google Maps
CarriesIRR US 89
CrossesWash
Location14.05 MI S JCT SR 64
RouteU.S. Route 89
CountyCoconino County
StateArizona
Coordinates35.6678, -111.511
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 inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width85 ft (25.9 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,040 (2020)
Projected traffic7,050 by 2040
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed77.1 mi (124 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 IRR US 89 over Wash built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1987.

What condition is IRR US 89 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 August 2022.

How much traffic does IRR US 89 over Wash carry?

About 7,040 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is IRR US 89 over Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 85 ft wide.

Who owns IRR US 89 over Wash?

It is owned by the State Highway Agency.