US Bridges

Estrella Road over Santa Rosa Canal

Good

Pinal County, Arizona · 0.3 MI S JCT Houser RD · Structure no. 08958

Built
1987
38 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
20
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Estrella Road over Santa Rosa Canal is a prestressed concrete stringer/multi-beam or girder carrying Estrella Road over Santa Rosa Canal in Pinal County, Arizona. It was built in 1987, so it is 38 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 20 vehicles a day, roughly 5% of them trucks, projected to reach 30 by 2042. The structure is 74 ft (22.6 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesEstrella Road
CrossesSanta Rosa Canal
Location0.3 MI S JCT Houser RD
RouteCity Street 0
CountyPinal County
StateArizona
Coordinates32.7718, -111.6022
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span72 ft (21.9 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic30 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Estrella Road over Santa Rosa Canal built?

It was built in 1987, making it 38 years old in 2025.

What condition is Estrella Road over Santa Rosa Canal 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 2024.

How much traffic does Estrella Road over Santa Rosa Canal carry?

About 20 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Estrella Road over Santa Rosa Canal?

The structure is 74 ft (22.6 m) long with a longest span of 72 ft (21.9 m) and a deck 22 ft wide.

Who owns Estrella Road over Santa Rosa Canal?

It is owned by the City or Municipal Highway Agency.