US Bridges

Santan Freeway over 56th Street

Good

Maricopa County, Arizona · 0.7 MI S Chandler Blvd · Structure no. 02589

Built
2003
22 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
247 ft
2 main spans
Daily traffic
80,456
2018 count
Owner
State
State Highway Agency

About this bridge

Santan Freeway over 56th Street is a prestressed concrete continuous box beam or girders - single or spread carrying Santan Freeway over 56th Street in Maricopa 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 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 80,456 vehicles a day, roughly 7% of them trucks, projected to reach 80,466 by 2038. The structure is 247 ft (75.3 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSantan Freeway
Crosses56th Street
Location0.7 MI S Chandler Blvd
RouteState Highway 202
StateArizona
Coordinates33.29517, -111.96314
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 inspectionMarch 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 alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length247 ft (75.3 m)
Longest span145 ft (44.2 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deck40 ft (12.2 m)

Traffic and service

Average daily traffic80,456 (2018)
Projected traffic80,466 by 2038
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed3.1 mi (5 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 Santan Freeway over 56th Street built?

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

What condition is Santan Freeway over 56th 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 March 2024.

How much traffic does Santan Freeway over 56th Street carry?

About 80,456 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is Santan Freeway over 56th Street?

The structure is 247 ft (75.3 m) long with a longest span of 145 ft (44.2 m) and a deck 55 ft wide.

Who owns Santan Freeway over 56th Street?

It is owned by the State Highway Agency.