US Bridges

IRR BIA RTE N544 over Tse Bonito Wash

Fair

Apache County, Arizona · In Window Rock Az · Structure no. 00000000000N683

Built
1994
31 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
518
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N544 over Tse Bonito Wash is a steel stringer/multi-beam or girder carrying IRR BIA RTE N544 over Tse Bonito Wash in Apache County, Arizona. It was built in 1994, so it is 31 years old, younger 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 518 vehicles a day, roughly 10% of them trucks, projected to reach 606 by 2040. The structure is 80 ft (24.4 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesIRR BIA RTE N544
CrossesTse Bonito Wash
LocationIn Window Rock Az
RouteFederal Lands Road 0N544
CountyApache County
StateArizona
Coordinates35.66247, -109.05458
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span77 ft (23.6 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic518 (2023)
Projected traffic606 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 BIA RTE N544 over Tse Bonito Wash built?

It was built in 1994, making it 31 years old in 2025.

What condition is IRR BIA RTE N544 over Tse Bonito 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 March 2023.

How much traffic does IRR BIA RTE N544 over Tse Bonito Wash carry?

About 518 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IRR BIA RTE N544 over Tse Bonito Wash?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 31 ft wide.

Who owns IRR BIA RTE N544 over Tse Bonito Wash?

It is owned by the Bureau of Indian Affairs.