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Irr Bia Rte N41 over West Fork Dennebito Wash

Navajo County, Arizona · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Irr Bia Rte N41 over West Fork Dennebito Wash in Navajo County, Arizona, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1980, making it 45 years old at the 2025 inventory.
It carries about 491 vehicles a day (traffic count year 2023).
It is one of 148 of the 278 inventoried bridges in Navajo County rated good (53.2%); 6 (2.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 151 ft
Location	4 Mi West of Forest Lake
NBI structure number	00000000000N533
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Arizona department of transportation.

Bridge	Built	Vehicles/day	Condition
I 40 Nfr & Sfr over Wash	1974	24,335	Good
I 40; EB & WB over Wash	1954	24,068	Good
I 40; EB & WB over Wash	1962	23,968	Good
I 40; EB & WB over Wash	1962	23,968	Good
I 40; EB & WB over Wash	1965	23,968	Good
I 40; EB & WB over Wash	1965	23,968	Good