US Bridges

Thomas RD over Rid Canal

Fair

Maricopa County, Arizona · 0.5 MI W JCT 99th Ave · Structure no. 09435

Built
1975
50 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
20,255
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Thomas RD over Rid Canal is a prestressed concrete tee beam carrying Thomas RD over Rid Canal in Maricopa County, Arizona. It was built in 1975, so it is 50 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 20,255 vehicles a day, roughly 5% of them trucks, projected to reach 20,265 by 2042. The structure is 33 ft (10.1 m) long and 80 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesThomas RD
CrossesRid Canal
Location0.5 MI W JCT 99th Ave
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.47911, -112.28111
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating40 US tons
Inventory rating24 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width80 ft (24.4 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,255 (2023)
Projected traffic20,265 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Thomas RD over Rid Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is Thomas RD over Rid Canal 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 November 2024.

How much traffic does Thomas RD over Rid Canal carry?

About 20,255 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Thomas RD over Rid Canal?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 80 ft wide.

Who owns Thomas RD over Rid Canal?

It is owned by the City or Municipal Highway Agency.