US Bridges

Diamondback RD over Wash

Good

Pinal County, Arizona · 0.3 MI E JCT Broadway LN · Structure no. 11408

Built
2000
25 years old
Condition
Good
inspected November 2021
Type
Culvert
Steel
Length
50 ft
7 main spans
Daily traffic
500
2021 count
Owner
County
County Highway Agency

About this bridge

Diamondback RD over Wash is a steel culvert carrying Diamondback RD over Wash in Pinal County, Arizona. It was built in 2000, so it is 25 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 510 by 2041. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDiamondback RD
CrossesWash
Location0.3 MI E JCT Broadway LN
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates33.4064, -111.4708
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 inspectionNovember 2021
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 rating66 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans7
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2021)
Projected traffic510 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Diamondback RD over Wash built?

It was built in 2000, making it 25 years old in 2025.

What condition is Diamondback RD 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 November 2021.

How much traffic does Diamondback RD over Wash carry?

About 500 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Diamondback RD over Wash?

The structure is 50 ft (15.2 m) long with a longest span of 6 ft (1.8 m).

Who owns Diamondback RD over Wash?

It is owned by the County Highway Agency.