US Bridges

Irr; SR 101L over Chapparal Road

Good

Maricopa County, Arizona · 5.0 MI N of JCT 202 · Structure no. 02253

Built
1996
29 years old, rebuilt 2016
Condition
Good
inspected October 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
205 ft
2 main spans
Daily traffic
166,759
2021 count
Owner
State
State Highway Agency

About this bridge

Irr; SR 101L over Chapparal Road is a prestressed concrete continuous box beam or girders - single or spread carrying Irr; SR 101L over Chapparal Road in Maricopa County, Arizona. It was built in 1996 and reconstructed in 2016, so it is 29 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 166,759 vehicles a day, roughly 7% of them trucks, projected to reach 166,769 by 2041. The structure is 205 ft (62.5 m) long and 170 ft wide.

Location

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CarriesIrr; SR 101L
CrossesChapparal Road
Location5.0 MI N of JCT 202
RouteState Highway 101
CountyMaricopa County
StateArizona
Coordinates33.5097, -111.888
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 inspectionOctober 2022
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 rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length205 ft (62.5 m)
Longest span106 ft (32.3 m)
Deck width170 ft (51.8 m)
Roadway width165 ft (50.2 m)
Vertical clearance over deck40 ft (12.2 m)

Traffic and service

Average daily traffic166,759 (2021)
Projected traffic166,769 by 2041
Trucks7%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Irr; SR 101L over Chapparal Road built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2016.

What condition is Irr; SR 101L over Chapparal Road 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 October 2022.

How much traffic does Irr; SR 101L over Chapparal Road carry?

About 166,759 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Irr; SR 101L over Chapparal Road?

The structure is 205 ft (62.5 m) long with a longest span of 106 ft (32.3 m) and a deck 170 ft wide.

Who owns Irr; SR 101L over Chapparal Road?

It is owned by the State Highway Agency.