US Bridges

Frontier Street over US 60

Fair

Maricopa County, Arizona · 0.1 MI W JCT US 93 · Structure no. 01000

Built
1937
88 years old, rebuilt 1958
Condition
Fair
inspected November 2023
Type
Frame
Concrete Continuous
Length
63 ft
2 main spans
Daily traffic
500
2022 count
Owner
State
State Highway Agency

About this bridge

Frontier Street over US 60 is a concrete continuous frame carrying Frontier Street over US 60 in Maricopa County, Arizona. It was built in 1937 and reconstructed in 1958, so it is 88 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 510 by 2042. The structure is 63 ft (19.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFrontier Street
CrossesUS 60
Location0.1 MI W JCT US 93
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.9682, -112.7309
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span33 ft (10.1 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic510 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Frontier Street over US 60 built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1958.

What condition is Frontier Street over US 60 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 Frontier Street over US 60 carry?

About 500 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Frontier Street over US 60?

The structure is 63 ft (19.2 m) long with a longest span of 33 ft (10.1 m) and a deck 31 ft wide.

Who owns Frontier Street over US 60?

It is owned by the State Highway Agency.