US Bridges

Sl 101 (pima Frwy) over Mcdowell Road

Good

Maricopa County, Arizona · 5.5 MI N of JCT US 60 · Structure no. 02256

Built
1993
32 years old, rebuilt 2015
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
177 ft
2 main spans
Daily traffic
212,392
2023 count
Owner
State
State Highway Agency

About this bridge

Sl 101 (pima Frwy) over Mcdowell Road is a prestressed concrete continuous box beam or girders - multiple carrying Sl 101 (pima Frwy) over Mcdowell Road in Maricopa County, Arizona. It was built in 1993 and reconstructed in 2015, so it is 32 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 212,392 vehicles a day, roughly 8% of them trucks, projected to reach 212,402 by 2042. The structure is 177 ft (53.9 m) long and 182 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSl 101 (pima Frwy)
CrossesMcdowell Road
Location5.5 MI N of JCT US 60
RouteState Highway 101
CountyMaricopa County
StateArizona
Coordinates33.4662, -111.8885
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
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 rating99 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length177 ft (53.9 m)
Longest span91 ft (27.7 m)
Deck width182 ft (55.5 m)
Roadway width178 ft (54.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212,392 (2023)
Projected traffic212,402 by 2042
Trucks8%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 Sl 101 (pima Frwy) over Mcdowell Road built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 2015.

What condition is Sl 101 (pima Frwy) over Mcdowell 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 January 2025.

How much traffic does Sl 101 (pima Frwy) over Mcdowell Road carry?

About 212,392 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sl 101 (pima Frwy) over Mcdowell Road?

The structure is 177 ft (53.9 m) long with a longest span of 91 ft (27.7 m) and a deck 182 ft wide.

Who owns Sl 101 (pima Frwy) over Mcdowell Road?

It is owned by the State Highway Agency.