US Bridges

I 10 Sky Harb Ramp over 24th Street

Good

Maricopa County, Arizona · 0.3 MI E JCT I 10 · Structure no. 02031

Built
1988
37 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
146 ft
1 main span
Daily traffic
7,994
2020 count
Owner
State
State Highway Agency

About this bridge

I 10 Sky Harb Ramp over 24th Street is a prestressed concrete box beam or girders - single or spread carrying I 10 Sky Harb Ramp over 24th Street in Maricopa County, Arizona. It was built in 1988, so it is 37 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 7,994 vehicles a day, roughly 6% of them trucks, projected to reach 8,004 by 2040. The structure is 146 ft (44.5 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 10 Sky Harb Ramp
Crosses24th Street
Location0.3 MI E JCT I 10
RouteInterstate 10
StateArizona
Coordinates33.4377, -112.0344
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span142 ft (43.3 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,994 (2020)
Projected traffic8,004 by 2040
Trucks6%
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 NetworkInterstate 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 I 10 Sky Harb Ramp over 24th Street built?

It was built in 1988, making it 37 years old in 2025.

What condition is I 10 Sky Harb Ramp over 24th Street 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 August 2024.

How much traffic does I 10 Sky Harb Ramp over 24th Street carry?

About 7,994 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I 10 Sky Harb Ramp over 24th Street?

The structure is 146 ft (44.5 m) long with a longest span of 142 ft (43.3 m) and a deck 37 ft wide.

Who owns I 10 Sky Harb Ramp over 24th Street?

It is owned by the State Highway Agency.