US Bridges

US 60 over Mcmicken Dam Outlet

Good

Maricopa County, Arizona · 19 MI E of JCT SR 74 · Structure no. 02561

Built
2000
25 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
124 ft
4 main spans
Daily traffic
10,611
2021 count
Owner
State
State Highway Agency

About this bridge

US 60 over Mcmicken Dam Outlet is a concrete continuous slab carrying US 60 over Mcmicken Dam Outlet in Maricopa 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 10,611 vehicles a day, roughly 8% of them trucks, projected to reach 10,621 by 2041. The structure is 124 ft (37.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 60
CrossesMcmicken Dam Outlet
Location19 MI E of JCT SR 74
RouteU.S. Route 60
StateArizona
Coordinates33.68479, -112.40969
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span42 ft (12.8 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck40 ft (12.2 m)

Traffic and service

Average daily traffic10,611 (2021)
Projected traffic10,621 by 2041
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Mcmicken Dam Outlet built?

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

What condition is US 60 over Mcmicken Dam Outlet 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 December 2023.

How much traffic does US 60 over Mcmicken Dam Outlet carry?

About 10,611 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US 60 over Mcmicken Dam Outlet?

The structure is 124 ft (37.8 m) long with a longest span of 42 ft (12.8 m) and a deck 45 ft wide.

Who owns US 60 over Mcmicken Dam Outlet?

It is owned by the State Highway Agency.