US Bridges

Black Mountain Pkw over Dry Wash

Good

Maricopa County, Arizona · 0.08 MI N of Bryce Lane · Structure no. 11359

Built
2013
12 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
343
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Black Mountain Pkw over Dry Wash is a concrete culvert carrying Black Mountain Pkw over Dry Wash in Maricopa County, Arizona. It was built in 2013, so it is 12 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 343 vehicles a day, roughly 1% of them trucks, projected to reach 400 by 2030. The structure is 25 ft (7.6 m) long and 79 ft wide.

Location

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CarriesBlack Mountain Pkw
CrossesDry Wash
Location0.08 MI N of Bryce Lane
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6884, -112.0051
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.2 US tons
Inventory rating51.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width79 ft (24.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic343 (2014)
Projected traffic400 by 2030
Trucks1%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Black Mountain Pkw over Dry Wash built?

It was built in 2013, making it 12 years old in 2025.

What condition is Black Mountain Pkw over Dry Wash 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 April 2022.

How much traffic does Black Mountain Pkw over Dry Wash carry?

About 343 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Black Mountain Pkw over Dry Wash?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 79 ft wide.

Who owns Black Mountain Pkw over Dry Wash?

It is owned by the City or Municipal Highway Agency.