US Bridges

84th ST over Wash

Good

Maricopa County, Arizona · 0.25MI N of E Westland RD · Structure no. 11291

Built
2002
23 years old
Condition
Good
inspected March 2021
Type
Culvert
Concrete Continuous
Length
30 ft
3 main spans
Daily traffic
110
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

84th ST over Wash is a concrete continuous culvert carrying 84th ST over Wash in Maricopa County, Arizona. It was built in 2002, so it is 23 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 110 vehicles a day, roughly 1% of them trucks, projected to reach 120 by 2041. The structure is 30 ft (9.1 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries84th ST
CrossesWash
Location0.25MI N of E Westland RD
RouteCity Street 0
StateArizona
Coordinates33.7976, -111.8999
Functional classUrban Local

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 inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width77 ft (23.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2021)
Projected traffic120 by 2041
Trucks1%
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 84th ST over Wash built?

It was built in 2002, making it 23 years old in 2025.

What condition is 84th ST 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 March 2021.

How much traffic does 84th ST over Wash carry?

About 110 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is 84th ST over Wash?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 77 ft wide.

Who owns 84th ST over Wash?

It is owned by the City or Municipal Highway Agency.