US Bridges

Ramp to I-10 NW over I 10 Mainline

Fair

Pima County, Arizona · JCT I-19 · Structure no. 02601

Built
2003
22 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
735 ft
4 main spans
Daily traffic
281,068
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp to I-10 NW over I 10 Mainline is a prestressed concrete continuous box beam or girders - single or spread carrying Ramp to I-10 NW over I 10 Mainline in Pima County, Arizona. It was built in 2003, so it is 22 years old, younger 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 6 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 281,068 vehicles a day, roughly 8% of them trucks, projected to reach 281,078 by 2042. The structure is 735 ft (224 m) long and 43 ft wide.

Location

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CarriesRamp to I-10 NW
CrossesI 10 Mainline
LocationJCT I-19
RouteInterstate 10
CountyPima County
StateArizona
Coordinates32.1971, -110.9781
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating41 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length735 ft (224 m)
Longest span210 ft (64 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck17 ft (5 m)

Traffic and service

Average daily traffic281,068 (2022)
Projected traffic281,078 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Ramp to I-10 NW over I 10 Mainline built?

It was built in 2003, making it 22 years old in 2025.

What condition is Ramp to I-10 NW over I 10 Mainline 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 December 2024.

How much traffic does Ramp to I-10 NW over I 10 Mainline carry?

About 281,068 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ramp to I-10 NW over I 10 Mainline?

The structure is 735 ft (224 m) long with a longest span of 210 ft (64 m) and a deck 43 ft wide.

Who owns Ramp to I-10 NW over I 10 Mainline?

It is owned by the State Highway Agency.