US Bridges

Black Mt BLVD-SR51 over Adot Drainage Channel

Good

Maricopa County, Arizona · SR 51 N to Black Mt. Blvd · Structure no. 07312

Built
2015
10 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
11,251
2014 count
Owner
State
State Highway Agency

About this bridge

Black Mt BLVD-SR51 over Adot Drainage Channel is a concrete continuous culvert carrying Black Mt BLVD-SR51 over Adot Drainage Channel in Maricopa County, Arizona. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,251 vehicles a day, roughly 5% of them trucks, projected to reach 11,261 by 2034. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBlack Mt BLVD-SR51
CrossesAdot Drainage Channel
LocationSR 51 N to Black Mt. Blvd
RouteState Highway 0
CountyMaricopa County
StateArizona
Coordinates33.67333, -112.00412
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,251 (2014)
Projected traffic11,261 by 2034
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Black Mt BLVD-SR51 over Adot Drainage Channel built?

It was built in 2015, making it 10 years old in 2025.

What condition is Black Mt BLVD-SR51 over Adot Drainage Channel 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 May 2024.

How much traffic does Black Mt BLVD-SR51 over Adot Drainage Channel carry?

About 11,251 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Black Mt BLVD-SR51 over Adot Drainage Channel?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns Black Mt BLVD-SR51 over Adot Drainage Channel?

It is owned by the State Highway Agency.