US Bridges

Pinnacle Peak Road over Skunk Creek

Good

Maricopa County, Arizona · West of 35th Avenue · Structure no. 10004

Built
1994
31 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
314 ft
4 main spans
Daily traffic
28,050
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pinnacle Peak Road over Skunk Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Pinnacle Peak Road over Skunk Creek in Maricopa County, Arizona. It was built in 1994, so it is 31 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 28,050 vehicles a day, roughly 1% of them trucks, projected to reach 28,060 by 2041. The structure is 314 ft (95.7 m) long and 80 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPinnacle Peak Road
CrossesSkunk Creek
LocationWest of 35th Avenue
RouteCity Street 0
StateArizona
Coordinates33.6983, -112.137
Functional classUrban Minor 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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating42.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length314 ft (95.7 m)
Longest span85 ft (25.9 m)
Deck width80 ft (24.4 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,050 (2021)
Projected traffic28,060 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pinnacle Peak Road over Skunk Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Pinnacle Peak Road over Skunk Creek 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 Pinnacle Peak Road over Skunk Creek carry?

About 28,050 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Pinnacle Peak Road over Skunk Creek?

The structure is 314 ft (95.7 m) long with a longest span of 85 ft (25.9 m) and a deck 80 ft wide.

Who owns Pinnacle Peak Road over Skunk Creek?

It is owned by the City or Municipal Highway Agency.