US 60 Wb; FAP 022 over Monarch Wash

Fair

Maricopa County, Arizona · 4.6 MI W JCT SR 74 · Structure no. 00204

Built: 1929; 96 years old, rebuilt 1938
Condition: Fair; inspected November 2023
Type: Slab; Concrete
Length: 134 ft; 6 main spans
Daily traffic: 8,707; 2020 count
Owner: State; State Highway Agency

About this bridge

US 60 Wb; FAP 022 over Monarch Wash is a concrete slab carrying US 60 Wb; FAP 022 over Monarch Wash in Maricopa County, Arizona. It was built in 1929 and reconstructed in 1938, so it is 96 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,707 vehicles a day, roughly 7% of them trucks, projected to reach 8,717 by 2040. The structure is 134 ft (40.8 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 60 Wb; FAP 022

CrossesMonarch Wash

Location4.6 MI W JCT SR 74

RouteU.S. Route 60

CountyMaricopa County

StateArizona

Coordinates33.9177, -112.6766

Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionNovember 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourCountermeasures installed to correct a previously existing problem

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating53 US tons

Inventory rating32 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, cast-in-place

Main spans6

Design loadHS 20

Structure length134 ft (40.8 m)

Longest span22 ft (6.7 m)

Deck width37 ft (11.2 m)

Roadway width34 ft (10.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,707 (2020)

Projected traffic8,717 by 2040

Trucks7%

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 Wb; FAP 022 over Monarch Wash built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1938.

What condition is US 60 Wb; FAP 022 over Monarch Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does US 60 Wb; FAP 022 over Monarch Wash carry?

About 8,707 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is US 60 Wb; FAP 022 over Monarch Wash?

The structure is 134 ft (40.8 m) long with a longest span of 22 ft (6.7 m) and a deck 37 ft wide.

Who owns US 60 Wb; FAP 022 over Monarch Wash?

It is owned by the State Highway Agency.