US Bridges

Hunt HWY over Magma RD Drainage Chl

Good

Pinal County, Arizona · 75 S of Magma RD · Structure no. 11661

Built
2021
4 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
13,725
2014 count
Owner
County
County Highway Agency

About this bridge

Hunt HWY over Magma RD Drainage Chl is a concrete continuous culvert carrying Hunt HWY over Magma RD Drainage Chl in Pinal County, Arizona. It was built in 2021, so it is 4 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 13,725 vehicles a day, roughly 5% of them trucks, projected to reach 13,735 by 2040. The structure is 21 ft (6.4 m) long and 72 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHunt HWY
CrossesMagma RD Drainage Chl
Location75 S of Magma RD
RouteCounty Highway 0
StateArizona
Coordinates33.1332, -111.5384
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior 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 spans2
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width72 ft (21.9 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic13,725 (2014)
Projected traffic13,735 by 2040
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Hunt HWY over Magma RD Drainage Chl built?

It was built in 2021, making it 4 years old in 2025.

What condition is Hunt HWY over Magma RD Drainage Chl 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 March 2022.

How much traffic does Hunt HWY over Magma RD Drainage Chl carry?

About 13,725 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Hunt HWY over Magma RD Drainage Chl?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 72 ft wide.

Who owns Hunt HWY over Magma RD Drainage Chl?

It is owned by the County Highway Agency.