US Bridges

SR 85 over Wash

Good

Maricopa County, Arizona · 3.5 MI N JCT SR B 8 · Structure no. 04443

Built
1956
69 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
87 ft
8 main spans
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 85 over Wash is a concrete continuous culvert carrying SR 85 over Wash in Maricopa County, Arizona. It was built in 1956, so it is 69 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 5,500 vehicles a day, roughly 34% of them trucks, projected to reach 5,510 by 2042. The structure is 87 ft (26.5 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 85
CrossesWash
Location3.5 MI N JCT SR B 8
RouteState Highway 85
CountyMaricopa County
StateArizona
Coordinates32.9889, -112.6644
Functional classRural Principal Arterial - Other

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 inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span10 ft (3 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic5,510 by 2042
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 85 over Wash built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR 85 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 May 2023.

How much traffic does SR 85 over Wash carry?

About 5,500 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is SR 85 over Wash?

The structure is 87 ft (26.5 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.

Who owns SR 85 over Wash?

It is owned by the State Highway Agency.