Home › Arizona › Pima County › Granada Ave over Tucson Arroyo

Granada Ave over Tucson Arroyo

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

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

Granada Ave over Tucson Arroyo 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 culvert, rated 5 (fair condition) on the 0-9 scale.
It was built in 1931 and reconstructed in 1971, making it 94 years old at the 2025 inventory.
It carries about 7,661 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

Component	Rating (2025)	FHWA scale meaning
Culvert	5	Fair condition


Structure	Continuous concrete culvert
Length	about 41 ft
Location	0.03 mi N of St Marys Rd
NBI structure number	09768
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