US Bridges

16th ST over Dry Wash

Good

Maricopa County, Arizona · 16th ST N of Northern Av · Structure no. 08402

Built
1974
51 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
1,000
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

16th ST over Dry Wash is a concrete continuous culvert carrying 16th ST over Dry Wash in Maricopa County, Arizona. It was built in 1974, so it is 51 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,010 by 2039. The structure is 37 ft (11.2 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries16th ST
CrossesDry Wash
Location16th ST N of Northern Av
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.5556, -112.0481
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length37 ft (11.2 m)
Longest span10 ft (3 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2019)
Projected traffic1,010 by 2039
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 16th ST over Dry Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is 16th ST 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 November 2023.

How much traffic does 16th ST over Dry Wash carry?

About 1,000 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is 16th ST over Dry Wash?

The structure is 37 ft (11.2 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns 16th ST over Dry Wash?

It is owned by the City or Municipal Highway Agency.