US Bridges

Smoketree Lane over Drainage Channel

Good

Pinal County, Arizona · 1.8 MI N of JCT SR 84 · Structure no. 06925

Built
1993
32 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
3,143
2020 count
Owner
State
State Highway Agency

About this bridge

Smoketree Lane over Drainage Channel is a concrete continuous culvert carrying Smoketree Lane over Drainage Channel in Pinal County, Arizona. It was built in 1993, so it is 32 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 3,143 vehicles a day, roughly 22% of them trucks, projected to reach 9,429 by 2040. The structure is 21 ft (6.4 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSmoketree Lane
CrossesDrainage Channel
Location1.8 MI N of JCT SR 84
RouteState Highway 347
CountyPinal County
StateArizona
Coordinates32.9011, -112.0498
Functional classRural 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 protection8 Very GoodNo problems noted.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width79 ft (24.1 m)
Roadway width77 ft (23.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,143 (2020)
Projected traffic9,429 by 2040
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Smoketree Lane over Drainage Channel built?

It was built in 1993, making it 32 years old in 2025.

What condition is Smoketree Lane over 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 April 2022.

How much traffic does Smoketree Lane over Drainage Channel carry?

About 3,143 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is Smoketree Lane over Drainage Channel?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 79 ft wide.

Who owns Smoketree Lane over Drainage Channel?

It is owned by the State Highway Agency.