US Bridges

8th Ave over Dry Wash

Good

Maricopa County, Arizona · S of Sweetwater Ave · Structure no. 11506

Built
1979
46 years old
Condition
Good
inspected April 2024
Type
Culvert
Steel
Length
20 ft
3 main spans
Daily traffic
350
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th Ave over Dry Wash is a steel culvert carrying 8th Ave over Dry Wash in Maricopa County, Arizona. It was built in 1979, so it is 46 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 350 vehicles a day, roughly 1% of them trucks, projected to reach 360 by 2040. The structure is 20 ft (6.1 m) long and 41 ft wide.

Location

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Carries8th Ave
CrossesDry Wash
LocationS of Sweetwater Ave
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6033, -112.0844
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2020)
Projected traffic360 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 8th Ave over Dry Wash built?

It was built in 1979, making it 46 years old in 2025.

What condition is 8th Ave over Dry 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 2024.

How much traffic does 8th Ave over Dry Wash carry?

About 350 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is 8th Ave over Dry Wash?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m) and a deck 41 ft wide.

Who owns 8th Ave over Dry Wash?

It is owned by the City or Municipal Highway Agency.