US Bridges

Pinnacle Peak RD over Dry Wash

Fair

Maricopa County, Arizona · E of Cave Creek · Structure no. 11510

Built
2006
19 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
26 ft
6 main spans
Daily traffic
6,984
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pinnacle Peak RD over Dry Wash is a steel culvert carrying Pinnacle Peak RD over Dry Wash in Maricopa County, Arizona. It was built in 2006, so it is 19 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 6,984 vehicles a day, roughly 1% of them trucks, projected to reach 6,994 by 2042. The structure is 26 ft (7.9 m) long and 79 ft wide.

Location

Open in Google Maps
CarriesPinnacle Peak RD
CrossesDry Wash
LocationE of Cave Creek
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6992, -112.0254
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating92 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span4 ft (1.2 m)
Deck width79 ft (24.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,984 (2023)
Projected traffic6,994 by 2042
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pinnacle Peak RD over Dry Wash built?

It was built in 2006, making it 19 years old in 2025.

What condition is Pinnacle Peak RD over Dry 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 March 2024.

How much traffic does Pinnacle Peak RD over Dry Wash carry?

About 6,984 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Pinnacle Peak RD over Dry Wash?

The structure is 26 ft (7.9 m) long with a longest span of 4 ft (1.2 m) and a deck 79 ft wide.

Who owns Pinnacle Peak RD over Dry Wash?

It is owned by the City or Municipal Highway Agency.