US Bridges

Turquoise over Floodway

Fair

Maricopa County, Arizona · Turquoise & 64th ST · Structure no. 09368

Built
1973
52 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,260
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Turquoise over Floodway is a concrete continuous culvert carrying Turquoise over Floodway in Maricopa County, Arizona. It was built in 1973, so it is 52 years old, older 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 1,260 vehicles a day, roughly 1% of them trucks, projected to reach 1,270 by 2042. The structure is 23 ft (7 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTurquoise
CrossesFloodway
LocationTurquoise & 64th ST
RouteCity Street 0
StateArizona
Coordinates33.57706, -111.94331
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width49 ft (14.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,260 (2024)
Projected traffic1,270 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Turquoise over Floodway built?

It was built in 1973, making it 52 years old in 2025.

What condition is Turquoise over Floodway 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 February 2024.

How much traffic does Turquoise over Floodway carry?

About 1,260 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Turquoise over Floodway?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 49 ft wide.

Who owns Turquoise over Floodway?

It is owned by the City or Municipal Highway Agency.