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Irr Bia Rte 3 over Gila River Overflow

Pinal County, Arizona · rated Fair in the 2025 National Bridge Inventory

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

Irr Bia Rte 3 over Gila River Overflow in Pinal County, Arizona, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1969, making it 56 years old at the 2025 inventory.
It carries about 150 vehicles a day (traffic count year 2023).
It is one of 256 of the 717 inventoried bridges in Pinal County rated fair (35.7%); 7 (1.0%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 210 ft
Location	2.7 Km N of Santa Cruz
NBI structure number	00000000000H142
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SR 79 over Wash	1952	179,518	Fair
US 60 over Ironwood Drive	1990	77,864	Fair
US 60 over Wash	1990	75,394	Fair
Irr I 10; EB & WB over Wash	1967	60,638	Good
Irr I 10; EB & WB over Wash	1967	60,638	Good
Irr I 10 over Wash	1967	60,638	Good