US Bridges

IRR US 89 over Wash

Fair

Coconino County, Arizona · 0.6 MI S JCT US 160 · Structure no. 00581

Built
1960
65 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
93 ft
4 main spans
Daily traffic
8,930
2022 count
Owner
State
State Highway Agency

About this bridge

IRR US 89 over Wash is a concrete continuous slab carrying IRR US 89 over Wash in Coconino 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 fair condition with a lowest component rating of 5 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 8,930 vehicles a day, roughly 11% of them trucks, projected to reach 8,940 by 2042. The structure is 93 ft (28.3 m) long and 45 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIRR US 89
CrossesWash
Location0.6 MI S JCT US 160
RouteU.S. Route 89
CountyCoconino County
StateArizona
Coordinates36.06817, -111.39306
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span25 ft (7.6 m)
Deck width45 ft (13.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,930 (2022)
Projected traffic8,940 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 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 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR US 89 over Wash built?

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

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 8,930 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is IRR US 89 over Wash?

The structure is 93 ft (28.3 m) long with a longest span of 25 ft (7.6 m) and a deck 45 ft wide.

Who owns IRR US 89 over Wash?

It is owned by the State Highway Agency.