US Bridges

IRR US 89 over Wash

Fair

Coconino County, Arizona · 25.8 MI N JCT US 160 · Structure no. 04835

Built
1931
94 years old, rebuilt 1976
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
3,383
2022 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 1931 and reconstructed in 1976, so it is 94 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,383 vehicles a day, roughly 42% of them trucks, projected to reach 3,393 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 95.7 mi (154 km).

Location

Open in Google Maps
CarriesIRR US 89
CrossesWash
Location25.8 MI N JCT US 160
RouteU.S. Route 89
CountyCoconino County
StateArizona
Coordinates36.409, -111.5376
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic3,383 (2022)
Projected traffic3,393 by 2042
Trucks42%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed95.7 mi (154 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR US 89 over Wash built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1976.

What condition is IRR US 89 over Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does IRR US 89 over Wash carry?

About 3,383 vehicles per day (2022 count), of which roughly 42% are trucks.

How long is IRR US 89 over Wash?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns IRR US 89 over Wash?

It is owned by the State Highway Agency.