US Bridges

Sunset Road over Santa Cruz River

Fair

Pima County, Arizona · E of N Silverbell RD · Structure no. 11516

Built
2017
8 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
725 ft
6 main spans
Daily traffic
6,603
2022 count
Owner
County
County Highway Agency

About this bridge

Sunset Road over Santa Cruz River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sunset Road over Santa Cruz River in Pima County, Arizona. It was built in 2017, so it is 8 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,603 vehicles a day, roughly 5% of them trucks, projected to reach 6,613 by 2042. The structure is 725 ft (221 m) long and 64 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesSunset Road
CrossesSanta Cruz River
LocationE of N Silverbell RD
RouteCounty Highway 0
CountyPima County
StateArizona
Coordinates32.3054, -111.0501
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length725 ft (221 m)
Longest span120 ft (36.6 m)
Deck width64 ft (19.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,603 (2022)
Projected traffic6,613 by 2042
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 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 Sunset Road over Santa Cruz River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Sunset Road over Santa Cruz River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

How much traffic does Sunset Road over Santa Cruz River carry?

About 6,603 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Sunset Road over Santa Cruz River?

The structure is 725 ft (221 m) long with a longest span of 120 ft (36.6 m) and a deck 64 ft wide.

Who owns Sunset Road over Santa Cruz River?

It is owned by the County Highway Agency.