US Bridges

IRR BIA RTE 46 over East Fork White River

Fair

Navajo County, Arizona · 7.6 KM E of Fort Apache · Structure no. 00000000000H067

Built
1962
63 years old, rebuilt 1990
Condition
Fair
inspected February 2024
Type
Frame
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
400
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 46 over East Fork White River is a concrete continuous frame carrying IRR BIA RTE 46 over East Fork White River in Navajo County, Arizona. It was built in 1962 and reconstructed in 1990, so it is 63 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 400 vehicles a day, roughly 4% of them trucks, projected to reach 468 by 2044. The structure is 85 ft (25.9 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIRR BIA RTE 46
CrossesEast Fork White River
Location7.6 KM E of Fort Apache
RouteFederal Lands Road 46
StateArizona
Coordinates33.80106, -109.92969
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span55 ft (16.7 m)
Deck width39 ft (11.9 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic468 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 46 over East Fork White River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1990.

What condition is IRR BIA RTE 46 over East Fork White River 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 February 2024.

How much traffic does IRR BIA RTE 46 over East Fork White River carry?

About 400 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is IRR BIA RTE 46 over East Fork White River?

The structure is 85 ft (25.9 m) long with a longest span of 55 ft (16.7 m) and a deck 39 ft wide.

Who owns IRR BIA RTE 46 over East Fork White River?

It is owned by the Bureau of Indian Affairs.