US Bridges

IRR BIA RTE N13 over Greaswood Wash

Fair

Apache County, Arizona · 1 MI North Lukachukai Az · Structure no. 00000000000N544

Built
1972
53 years old, rebuilt 1993
Condition
Fair
inspected April 2023
Type
Culvert
Steel
Length
58 ft
3 main spans
Daily traffic
2,400
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N13 over Greaswood Wash is a steel culvert carrying IRR BIA RTE N13 over Greaswood Wash in Apache County, Arizona. It was built in 1972 and reconstructed in 1993, so it is 53 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 2,400 vehicles a day, roughly 10% of them trucks, projected to reach 2,807 by 2040. The structure is 58 ft (17.6 m) long and 138 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N13
CrossesGreaswood Wash
Location1 MI North Lukachukai Az
RouteFederal Lands Road 0N13
CountyApache County
StateArizona
Coordinates36.40928, -109.25469
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length58 ft (17.6 m)
Longest span14 ft (4.4 m)
Deck width138 ft (42 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2023)
Projected traffic2,807 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 N13 over Greaswood Wash built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1993.

What condition is IRR BIA RTE N13 over Greaswood 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 April 2023.

How much traffic does IRR BIA RTE N13 over Greaswood Wash carry?

About 2,400 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IRR BIA RTE N13 over Greaswood Wash?

The structure is 58 ft (17.6 m) long with a longest span of 14 ft (4.4 m) and a deck 138 ft wide.

Who owns IRR BIA RTE N13 over Greaswood Wash?

It is owned by the Bureau of Indian Affairs.