US Bridges

Indian School Road over I 17

Good

Maricopa County, Arizona · 8.9 MI North of JCT I 10 · Structure no. 02247

Built
1992
33 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
176 ft
2 main spans
Daily traffic
52,102
2021 count
Owner
State
State Highway Agency

About this bridge

Indian School Road over I 17 is a prestressed concrete continuous stringer/multi-beam or girder carrying Indian School Road over I 17 in Maricopa County, Arizona. It was built in 1992, so it is 33 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 52,102 vehicles a day, roughly 5% of them trucks, projected to reach 52,112 by 2041. The structure is 176 ft (53.6 m) long and 157 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIndian School Road
CrossesI 17
Location8.9 MI North of JCT I 10
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.495, -112.1133
Functional classUrban Other Principal Arterial

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span86 ft (26.2 m)
Deck width157 ft (47.8 m)
Roadway width136 ft (41.5 m)
Vertical clearance over deck19 ft (5.8 m)

Traffic and service

Average daily traffic52,102 (2021)
Projected traffic52,112 by 2041
Trucks5%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Indian School Road over I 17 built?

It was built in 1992, making it 33 years old in 2025.

What condition is Indian School Road over I 17 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 July 2024.

How much traffic does Indian School Road over I 17 carry?

About 52,102 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Indian School Road over I 17?

The structure is 176 ft (53.6 m) long with a longest span of 86 ft (26.2 m) and a deck 157 ft wide.

Who owns Indian School Road over I 17?

It is owned by the State Highway Agency.