US Bridges

IRR BIA RTE N151 over Cornfields Wash

Fair

Apache County, Arizona · 0.5 MI E of N15 on N151 · Structure no. 00000000000N652

Built
1975
50 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
220 ft
3 main spans
Daily traffic
545
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N151 over Cornfields Wash is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE N151 over Cornfields Wash in Apache County, Arizona. It was built in 1975, so it is 50 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 545 vehicles a day, roughly 2% of them trucks, projected to reach 1,224 by 2043. The structure is 220 ft (67.1 m) long and 31 ft wide. If it were closed, the detour would be 9.3 mi (15 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N151
CrossesCornfields Wash
Location0.5 MI E of N15 on N151
RouteFederal Lands Road 0N151
CountyApache County
StateArizona
Coordinates35.65322, -109.69417
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span73 ft (22.3 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic545 (2023)
Projected traffic1,224 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.3 mi (15 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 N151 over Cornfields Wash built?

It was built in 1975, making it 50 years old in 2025.

What condition is IRR BIA RTE N151 over Cornfields 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 N151 over Cornfields Wash carry?

About 545 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is IRR BIA RTE N151 over Cornfields Wash?

The structure is 220 ft (67.1 m) long with a longest span of 73 ft (22.3 m) and a deck 31 ft wide.

Who owns IRR BIA RTE N151 over Cornfields Wash?

It is owned by the Bureau of Indian Affairs.