US Bridges

Smith-Enke Road over Santa Rosa Wash

Good

Pinal County, Arizona · 0.8 MI E JCT SR 347 · Structure no. 10819

Built
2006
19 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
330 ft
6 main spans
Daily traffic
17,995
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Smith-Enke Road over Santa Rosa Wash is a prestressed concrete box beam or girders - multiple carrying Smith-Enke Road over Santa Rosa Wash in Pinal 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 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 17,995 vehicles a day, roughly 3% of them trucks, projected to reach 18,005 by 2042. The structure is 330 ft (100.6 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSmith-Enke Road
CrossesSanta Rosa Wash
Location0.8 MI E JCT SR 347
RouteCity Street 0
CountyPinal County
StateArizona
Coordinates33.0724, -112.0313
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length330 ft (100.6 m)
Longest span55 ft (16.8 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,995 (2022)
Projected traffic18,005 by 2042
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith-Enke Road over Santa Rosa Wash built?

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

What condition is Smith-Enke Road over Santa Rosa 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 2024.

How much traffic does Smith-Enke Road over Santa Rosa Wash carry?

About 17,995 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Smith-Enke Road over Santa Rosa Wash?

The structure is 330 ft (100.6 m) long with a longest span of 55 ft (16.8 m) and a deck 36 ft wide.

Who owns Smith-Enke Road over Santa Rosa Wash?

It is owned by the City or Municipal Highway Agency.