US Bridges

Granada Ave over Tucson Arroyo

Fair

Pima County, Arizona · 0.03 MI N of ST Marys RD · Structure no. 09768

Built
1931
94 years old, rebuilt 1971
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
42 ft
3 main spans
Daily traffic
7,661
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Granada Ave over Tucson Arroyo is a concrete continuous culvert carrying Granada Ave over Tucson Arroyo in Pima County, Arizona. It was built in 1931 and reconstructed in 1971, so it is 94 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,661 vehicles a day, roughly 10% of them trucks, projected to reach 7,671 by 2042. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesGranada Ave
CrossesTucson Arroyo
Location0.03 MI N of ST Marys RD
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.22825, -110.97822
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating80 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck35 ft (10.7 m)

Traffic and service

Average daily traffic7,661 (2023)
Projected traffic7,671 by 2042
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Granada Ave over Tucson Arroyo built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1971.

What condition is Granada Ave over Tucson Arroyo in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Granada Ave over Tucson Arroyo carry?

About 7,661 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Granada Ave over Tucson Arroyo?

The structure is 42 ft (12.8 m) long with a longest span of 13 ft (4 m).

Who owns Granada Ave over Tucson Arroyo?

It is owned by the City or Municipal Highway Agency.