US Bridges

US 60 over Silver King Wash

Good

Pinal County, Arizona · 4MI W of JCT 177 · Structure no. 20066

Built
2016
9 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
142 ft
1 main span
Daily traffic
5,650
2022 count
Owner
State
State Highway Agency

About this bridge

US 60 over Silver King Wash is a prestressed concrete stringer/multi-beam or girder carrying US 60 over Silver King Wash in Pinal County, Arizona. It was built in 2016, so it is 9 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 5,650 vehicles a day, roughly 13% of them trucks, projected to reach 5,660 by 2042. The structure is 142 ft (43.3 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 60
CrossesSilver King Wash
Location4MI W of JCT 177
RouteU.S. Route 60
StateArizona
Coordinates33.2843, -111.1462
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span135 ft (41.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,650 (2022)
Projected traffic5,660 by 2042
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 US 60 over Silver King Wash built?

It was built in 2016, making it 9 years old in 2025.

What condition is US 60 over Silver King 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 February 2024.

How much traffic does US 60 over Silver King Wash carry?

About 5,650 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 60 over Silver King Wash?

The structure is 142 ft (43.3 m) long with a longest span of 135 ft (41.1 m) and a deck 45 ft wide.

Who owns US 60 over Silver King Wash?

It is owned by the State Highway Agency.