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S 12th Ave over Rodeo Wash

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

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

S 12th Ave over Rodeo Wash in Pima 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 1960, making it 65 years old at the 2025 inventory.
It carries about 16,810 vehicles a day (traffic count year 2023).
Its listed owner is a city or municipal highway agency.
It is one of 361 of the 1,154 inventoried bridges in Pima County rated fair (31.3%); 11 (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 multiple box beam
Length	about 62 ft
Location	0.02 mi S of Columbia St
NBI structure number	09029
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ramp to I-10 NW over I 10 Mainline	2003	281,068	Fair
I-10 EB & WB over Cushing Street	2009	209,279	Good
I-10 EB & WB over 18th Street	2009	209,269	Good
I-10 EB & WB over Congress Street	2009	195,388	Good
I-10 over St. Marys Rd	2009	195,068	Fair
I-10 over Speedway Blvd.	2009	195,068	Good