US Bridges

Twisted Leaf over Wash

Good

Pinal County, Arizona · 0.4 MI NW JCT Donnelly TR · Structure no. 11389

Built
2001
24 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete Continuous
Length
67 ft
6 main spans
Daily traffic
300
2021 count
Owner
County
County Highway Agency

About this bridge

Twisted Leaf over Wash is a concrete continuous culvert carrying Twisted Leaf over Wash in Pinal County, Arizona. It was built in 2001, so it is 24 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 1% of them trucks, projected to reach 310 by 2041. The structure is 67 ft (20.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesTwisted Leaf
CrossesWash
Location0.4 MI NW JCT Donnelly TR
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates33.38089, -111.45859
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.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2021)
Projected traffic310 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 Twisted Leaf over Wash built?

It was built in 2001, making it 24 years old in 2025.

What condition is Twisted Leaf 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 October 2021.

How much traffic does Twisted Leaf over Wash carry?

About 300 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Twisted Leaf over Wash?

The structure is 67 ft (20.4 m) long with a longest span of 10 ft (3 m).

Who owns Twisted Leaf over Wash?

It is owned by the County Highway Agency.