US Bridges

59th Ave over Skunk Creek

Fair

Maricopa County, Arizona · 300 N JCT Union Hills DR · Structure no. 08947

Built
1985
40 years old
Condition
Fair
inspected May 2024
Type
Slab
Prestressed Concrete Continuous
Length
168 ft
3 main spans
Daily traffic
22,738
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

59th Ave over Skunk Creek is a prestressed concrete continuous slab carrying 59th Ave over Skunk Creek in Maricopa County, Arizona. It was built in 1985, so it is 40 years old, younger 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 22,738 vehicles a day, roughly 5% of them trucks, projected to reach 22,748 by 2042. The structure is 168 ft (51.2 m) long and 101 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries59th Ave
CrossesSkunk Creek
Location300 N JCT Union Hills DR
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6553, -112.1863
Functional classUrban Minor Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span65 ft (19.8 m)
Deck width101 ft (30.8 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,738 (2024)
Projected traffic22,748 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 59th Ave over Skunk Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is 59th Ave over Skunk Creek 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 May 2024.

How much traffic does 59th Ave over Skunk Creek carry?

About 22,738 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 59th Ave over Skunk Creek?

The structure is 168 ft (51.2 m) long with a longest span of 65 ft (19.8 m) and a deck 101 ft wide.

Who owns 59th Ave over Skunk Creek?

It is owned by the City or Municipal Highway Agency.