US Bridges

SR 143 over Sky Harbor Blvd

Good

Maricopa County, Arizona · 1.73 MI W of JCT I 10 · Structure no. 02183

Built
1990
35 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
242 ft
2 main spans
Daily traffic
66,848
2023 count
Owner
State
State Highway Agency

About this bridge

SR 143 over Sky Harbor Blvd is a prestressed concrete continuous box beam or girders - single or spread carrying SR 143 over Sky Harbor Blvd in Maricopa County, Arizona. It was built in 1990, so it is 35 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 66,848 vehicles a day, roughly 7% of them trucks, projected to reach 66,858 by 2042. The structure is 242 ft (73.8 m) long and 132 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 143
CrossesSky Harbor Blvd
Location1.73 MI W of JCT I 10
RouteState Highway 143
CountyMaricopa County
StateArizona
Coordinates33.4363, -111.9789
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJune 2023
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 rating89.9 US tons
Inventory rating49.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span133 ft (40.5 m)
Deck width132 ft (40.3 m)
Roadway width127 ft (38.7 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic66,848 (2023)
Projected traffic66,858 by 2042
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 SR 143 over Sky Harbor Blvd built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR 143 over Sky Harbor Blvd 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 June 2023.

How much traffic does SR 143 over Sky Harbor Blvd carry?

About 66,848 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 143 over Sky Harbor Blvd?

The structure is 242 ft (73.8 m) long with a longest span of 133 ft (40.5 m) and a deck 132 ft wide.

Who owns SR 143 over Sky Harbor Blvd?

It is owned by the State Highway Agency.