US Bridges

12th Ave. CR over Ramp N-E

Good

Pima County, Arizona · 0.2 MI S JCT I-19 · Structure no. 02599

Built
2004
21 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
10,686
2022 count
Owner
State
State Highway Agency

About this bridge

12th Ave. CR over Ramp N-E is a prestressed concrete box beam or girders - single or spread carrying 12th Ave. CR over Ramp N-E in Pima County, Arizona. It was built in 2004, so it is 21 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,686 vehicles a day, roughly 2% of them trucks, projected to reach 10,696 by 2042. The structure is 95 ft (29 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries12th Ave. CR
CrossesRamp N-E
Location0.2 MI S JCT I-19
RouteInterstate 10
CountyPima County
StateArizona
Coordinates32.1925, -110.97757
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating45 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length95 ft (29 m)
Longest span90 ft (27.4 m)
Deck width58 ft (17.7 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,686 (2022)
Projected traffic10,696 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 12th Ave. CR over Ramp N-E built?

It was built in 2004, making it 21 years old in 2025.

What condition is 12th Ave. CR over Ramp N-E in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does 12th Ave. CR over Ramp N-E carry?

About 10,686 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 12th Ave. CR over Ramp N-E?

The structure is 95 ft (29 m) long with a longest span of 90 ft (27.4 m) and a deck 58 ft wide.

Who owns 12th Ave. CR over Ramp N-E?

It is owned by the State Highway Agency.