US Bridges

Silverlake Road over Santa Cruz River

Good

Pima County, Arizona · 0.5 MI E JCT Mission RD · Structure no. 10224

Built
2000
25 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
227 ft
2 main spans
Daily traffic
14,559
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Silverlake Road over Santa Cruz River is a prestressed concrete continuous stringer/multi-beam or girder carrying Silverlake Road over Santa Cruz River in Pima County, Arizona. It was built in 2000, so it is 25 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 14,559 vehicles a day, roughly 5% of them trucks, projected to reach 14,569 by 2042. The structure is 227 ft (69.2 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSilverlake Road
CrossesSanta Cruz River
Location0.5 MI E JCT Mission RD
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.19953, -110.98816
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 inspectionMay 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length227 ft (69.2 m)
Longest span111 ft (33.8 m)
Deck width95 ft (28.9 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic14,559 (2023)
Projected traffic14,569 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silverlake Road over Santa Cruz River built?

It was built in 2000, making it 25 years old in 2025.

What condition is Silverlake Road over Santa Cruz River 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 May 2023.

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

About 14,559 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Silverlake Road over Santa Cruz River?

The structure is 227 ft (69.2 m) long with a longest span of 111 ft (33.8 m) and a deck 95 ft wide.

Who owns Silverlake Road over Santa Cruz River?

It is owned by the City or Municipal Highway Agency.