US Bridges

81st Ave over Wash

Good

Maricopa County, Arizona · @ JCT W/ Beardsley RD · Structure no. 10865

Built
1997
28 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
61 ft
4 main spans
Daily traffic
4,399
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

81st Ave over Wash is a concrete continuous culvert carrying 81st Ave 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 4,399 vehicles a day, roughly 10% of them trucks, projected to reach 4,409 by 2040. The structure is 61 ft (18.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries81st Ave
CrossesWash
Location@ JCT W/ Beardsley RD
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6676, -112.2339
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
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 alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,399 (2020)
Projected traffic4,409 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 81st Ave over Wash built?

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

What condition is 81st Ave 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 April 2022.

How much traffic does 81st Ave over Wash carry?

About 4,399 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is 81st Ave over Wash?

The structure is 61 ft (18.6 m) long with a longest span of 14 ft (4.3 m).

Who owns 81st Ave over Wash?

It is owned by the City or Municipal Highway Agency.