US Bridges

IRR BIA RTE N33 over Cove Wash

Good

Apache County, Arizona · 0.5M W.Of Cove Day School · Structure no. 00000000000N253

Built
1997
28 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
225
2022 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N33 over Cove Wash is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE N33 over Cove 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 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 225 vehicles a day, roughly 5% of them trucks, projected to reach 391 by 2040. The structure is 76 ft (23.1 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIRR BIA RTE N33
CrossesCove Wash
Location0.5M W.Of Cove Day School
RouteFederal Lands Road 0N33
StateArizona
Coordinates36.55667, -109.22206
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length76 ft (23.1 m)
Longest span73 ft (22.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2022)
Projected traffic391 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 N33 over Cove Wash built?

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

What condition is IRR BIA RTE N33 over Cove 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 June 2024.

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

About 225 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N33 over Cove Wash?

The structure is 76 ft (23.1 m) long with a longest span of 73 ft (22.1 m) and a deck 28 ft wide.

Who owns IRR BIA RTE N33 over Cove Wash?

It is owned by the Bureau of Indian Affairs.