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Layton Rd over Union Canal

Graham County, Arizona · rated Poor in the 2025 National Bridge Inventory

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

Layton Rd over Union Canal in Graham County, Arizona, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1900, making it 125 years old at the 2025 inventory.
It carries about 203 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 7 of the 181 inventoried bridges in Graham County rated poor (3.9%); 7 (3.9%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 23 ft
Location	0.1 mi W Jct Webster Rd
NBI structure number	08135
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
8th Street over Graveyard Wash	1920	14,272	Fair
US 70 over Graveyard Wash	1948	14,272	Fair
US 191 over Union Canal	1958	9,321	Good
US 70 over Stockton Wash	1950	8,642	Fair
Irr US 70 over Ash Creek	1948	8,534	Fair
US 191 over Graveyard Wash	1958	8,018	Good