US Bridges

Rio Vista Blvd over Small Lake

Good

Maricopa County, Arizona · N of W Thunderbird RD · Structure no. 10864

Built
2003
22 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
2 main spans
Daily traffic
3,660
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rio Vista Blvd over Small Lake is a prestressed concrete box beam or girders - multiple carrying Rio Vista Blvd over Small Lake in Maricopa County, Arizona. It was built in 2003, so it is 22 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 3,660 vehicles a day, roughly 1% of them trucks, projected to reach 3,670 by 2042. The structure is 62 ft (18.9 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRio Vista Blvd
CrossesSmall Lake
LocationN of W Thunderbird RD
RouteCity Street 0
StateArizona
Coordinates33.6148, -112.2455
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span31 ft (9.4 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic3,660 (2022)
Projected traffic3,670 by 2042
Trucks1%
Lanes on structure3
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 Rio Vista Blvd over Small Lake built?

It was built in 2003, making it 22 years old in 2025.

What condition is Rio Vista Blvd over Small Lake 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 February 2023.

How much traffic does Rio Vista Blvd over Small Lake carry?

About 3,660 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Rio Vista Blvd over Small Lake?

The structure is 62 ft (18.9 m) long with a longest span of 31 ft (9.4 m) and a deck 50 ft wide.

Who owns Rio Vista Blvd over Small Lake?

It is owned by the City or Municipal Highway Agency.