US Bridges

Indian School RD over Wash

Good

Maricopa County, Arizona · Just W of Wigwam Blvd · Structure no. 10575

Built
1997
28 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
110 ft
10 main spans
Daily traffic
17,990
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Indian School RD over Wash is a concrete continuous culvert carrying Indian School RD over Wash in Maricopa County, Arizona. It was built in 1997, so it is 28 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 17,990 vehicles a day, roughly 5% of them trucks, projected to reach 18,000 by 2040. The structure is 110 ft (33.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIndian School RD
CrossesWash
LocationJust W of Wigwam Blvd
RouteCity Street 0
StateArizona
Coordinates33.493, -112.382
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans10
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,990 (2020)
Projected traffic18,000 by 2040
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Indian School RD over Wash built?

It was built in 1997, making it 28 years old in 2025.

What condition is Indian School RD over Wash 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 May 2021.

How much traffic does Indian School RD over Wash carry?

About 17,990 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Indian School RD over Wash?

The structure is 110 ft (33.5 m) long with a longest span of 10 ft (3 m).

Who owns Indian School RD over Wash?

It is owned by the City or Municipal Highway Agency.