US Bridges

IRR BIA RTE N27 over Ganado Wash

Fair

Apache County, Arizona · 2.0 MI N of Az 264 on 27 · Structure no. 00000000000N602

Built
1974
51 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
3 main spans
Daily traffic
1,000
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N27 over Ganado Wash is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE N27 over Ganado Wash in Apache County, Arizona. It was built in 1974, so it is 51 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,166 by 2040. The structure is 200 ft (61 m) long and 29 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N27
CrossesGanado Wash
Location2.0 MI N of Az 264 on 27
RouteFederal Lands Road 0N27
CountyApache County
StateArizona
Coordinates35.7285, -109.51318
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.5 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span67 ft (20.3 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,166 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 N27 over Ganado Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is IRR BIA RTE N27 over Ganado 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 N27 over Ganado Wash carry?

About 1,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N27 over Ganado Wash?

The structure is 200 ft (61 m) long with a longest span of 67 ft (20.3 m) and a deck 29 ft wide.

Who owns IRR BIA RTE N27 over Ganado Wash?

It is owned by the Bureau of Indian Affairs.