US Bridges

SR 303L over Indian School Road

Good

Maricopa County, Arizona · 2.3 MI N of I-10 · Structure no. 20016

Built
2013
12 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
229 ft
2 main spans
Daily traffic
44,106
2021 count
Owner
State
State Highway Agency

About this bridge

SR 303L over Indian School Road is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 303L over Indian School Road in Maricopa County, Arizona. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 44,106 vehicles a day, roughly 7% of them trucks, projected to reach 44,116 by 2041. The structure is 229 ft (69.8 m) long and 197 ft wide.

Location

Open in Google Maps
CarriesSR 303L
CrossesIndian School Road
Location2.3 MI N of I-10
RouteState Highway 303
CountyMaricopa County
StateArizona
Coordinates33.4934, -112.4206
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length229 ft (69.8 m)
Longest span112 ft (34.1 m)
Deck width197 ft (59.9 m)
Roadway width190 ft (58 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,106 (2021)
Projected traffic44,116 by 2041
Trucks7%
Lanes on structure6
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 SR 303L over Indian School Road built?

It was built in 2013, making it 12 years old in 2025.

What condition is SR 303L over Indian School 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 2024.

How much traffic does SR 303L over Indian School Road carry?

About 44,106 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR 303L over Indian School Road?

The structure is 229 ft (69.8 m) long with a longest span of 112 ft (34.1 m) and a deck 197 ft wide.

Who owns SR 303L over Indian School Road?

It is owned by the State Highway Agency.