US Bridges

Marsh Road over Santa Rosa Canal

Good

Pinal County, Arizona · 1.0 MI E JCT Stanfield RD · Structure no. 08967

Built
1987
38 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

Marsh Road over Santa Rosa Canal is a prestressed concrete stringer/multi-beam or girder carrying Marsh 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 60 vehicles a day, projected to reach 70 by 2042. The structure is 66 ft (20.1 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMarsh Road
CrossesSanta Rosa Canal
Location1.0 MI E JCT Stanfield RD
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates32.7968, -111.9444
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.
Substructure7 GoodSome minor problems.
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic70 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Marsh Road over Santa Rosa Canal built?

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

What condition is Marsh 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 Marsh Road over Santa Rosa Canal carry?

About 60 vehicles per day (2022 count).

How long is Marsh Road over Santa Rosa Canal?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 35 ft wide.

Who owns Marsh Road over Santa Rosa Canal?

It is owned by the County Highway Agency.