US Bridges

IRR BIA RTE N15 over Dry Wash

Good

Coconino County, Arizona · 5 MI East of Sunrise · Structure no. 00000000000N316

Built
1979
46 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
2,000
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N15 over Dry Wash is a concrete continuous slab carrying IRR BIA RTE N15 over Dry Wash in Coconino County, Arizona. It was built in 1979, so it is 46 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,000 vehicles a day, roughly 10% of them trucks, projected to reach 2,340 by 2043. The structure is 100 ft (30.6 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N15
CrossesDry Wash
Location5 MI East of Sunrise
RouteFederal Lands Road 0N15
CountyCoconino County
StateArizona
Coordinates35.30925, -110.91314
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
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 rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length100 ft (30.6 m)
Longest span38 ft (11.5 m)
Deck width34 ft (10.5 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2023)
Projected traffic2,340 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 N15 over Dry Wash built?

It was built in 1979, making it 46 years old in 2025.

What condition is IRR BIA RTE N15 over Dry Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does IRR BIA RTE N15 over Dry Wash carry?

About 2,000 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IRR BIA RTE N15 over Dry Wash?

The structure is 100 ft (30.6 m) long with a longest span of 38 ft (11.5 m) and a deck 34 ft wide.

Who owns IRR BIA RTE N15 over Dry Wash?

It is owned by the Bureau of Indian Affairs.