US Bridges

IRR BIA RTE N33 over Wash

Poor

Apache County, Arizona · 4.7 MI NE Cove Day School · Structure no. 00000000000N257

Built
1997
28 years old
Condition
Poor
inspected June 2024
Type
Culvert
Steel
Length
51 ft
4 main spans
Daily traffic
330
2022 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N33 over Wash is a steel culvert carrying IRR BIA RTE N33 over Wash in Apache County, Arizona. It was built in 1997, so it is 28 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 330 vehicles a day, roughly 5% of them trucks, projected to reach 552 by 2040. The structure is 51 ft (15.4 m) long and 78 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N33
CrossesWash
Location4.7 MI NE Cove Day School
RouteFederal Lands Road 0N33
CountyApache County
StateArizona
Coordinates36.59661, -109.15075
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating99.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadUnknown
Structure length51 ft (15.4 m)
Longest span9 ft (2.6 m)
Deck width78 ft (23.8 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2022)
Projected traffic552 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE N33 over Wash built?

It was built in 1997, making it 28 years old in 2025.

What condition is IRR BIA RTE N33 over Wash in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does IRR BIA RTE N33 over Wash carry?

About 330 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N33 over Wash?

The structure is 51 ft (15.4 m) long with a longest span of 9 ft (2.6 m) and a deck 78 ft wide.

Who owns IRR BIA RTE N33 over Wash?

It is owned by the Bureau of Indian Affairs.