US Bridges

IRR US a 89 over Wash

Fair

Coconino County, Arizona · 16.8 MI N JCT US 89 · Structure no. 05203

Built
1933
92 years old, rebuilt 2017
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
1,101
2022 count
Owner
State
State Highway Agency

About this bridge

IRR US a 89 over Wash is a concrete continuous culvert carrying IRR US a 89 over Wash in Coconino County, Arizona. It was built in 1933 and reconstructed in 2017, so it is 92 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 1,101 vehicles a day, roughly 11% of them trucks, projected to reach 1,111 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 a 89
CrossesWash
Location16.8 MI N JCT US 89
RouteU.S. Route 89
CountyCoconino County
StateArizona
Coordinates36.8088, -111.665
Functional classRural Minor Arterial

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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating99 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 traffic1,101 (2022)
Projected traffic1,111 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 a 89 over Wash built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2017.

What condition is IRR US a 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 a 89 over Wash carry?

About 1,101 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is IRR US a 89 over Wash?

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

Who owns IRR US a 89 over Wash?

It is owned by the State Highway Agency.