US Bridges

Sweetwater Avenue over Dry Wash

Good

Maricopa County, Arizona · W of 42nd Street · Structure no. 08507

Built
1976
49 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
2,630
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sweetwater Avenue over Dry Wash is a concrete continuous culvert carrying Sweetwater Avenue over Dry Wash in Maricopa County, Arizona. It was built in 1976, so it is 49 years old, older 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 2,630 vehicles a day, roughly 1% of them trucks, projected to reach 2,640 by 2042. The structure is 26 ft (7.9 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSweetwater Avenue
CrossesDry Wash
LocationW of 42nd Street
RouteCity Street 0
StateArizona
Coordinates33.6044, -111.991
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 inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating57.7 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width48 ft (14.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,630 (2023)
Projected traffic2,640 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Sweetwater Avenue over Dry Wash built?

It was built in 1976, making it 49 years old in 2025.

What condition is Sweetwater Avenue 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 January 2025.

How much traffic does Sweetwater Avenue over Dry Wash carry?

About 2,630 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Sweetwater Avenue over Dry Wash?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 48 ft wide.

Who owns Sweetwater Avenue over Dry Wash?

It is owned by the City or Municipal Highway Agency.