US Bridges

IRR US a 89 over Wash

Fair

Coconino County, Arizona · 1.3 MI N JCT SR 389 · Structure no. 05217

Built
1930
95 years old, rebuilt 2001
Condition
Fair
inspected July 2021
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
5,356
2019 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 1930 and reconstructed in 2001, so it is 95 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 5,356 vehicles a day, roughly 7% of them trucks, projected to reach 5,366 by 2039. The structure is 34 ft (10.4 m) long and 83 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesIRR US a 89
CrossesWash
Location1.3 MI N JCT SR 389
RouteU.S. Route 89
CountyCoconino County
StateArizona
Coordinates36.9636, -112.5269
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span14 ft (4.3 m)
Deck width83 ft (25.3 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,356 (2019)
Projected traffic5,366 by 2039
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 1930, making it 95 years old in 2025. It was reconstructed in 2001.

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 July 2021.

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

About 5,356 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is IRR US a 89 over Wash?

The structure is 34 ft (10.4 m) long with a longest span of 14 ft (4.3 m) and a deck 83 ft wide.

Who owns IRR US a 89 over Wash?

It is owned by the State Highway Agency.