US Bridges

243rd Avenue over Cap Canal

Fair

Maricopa County, Arizona · 2.33 MI S of Jomax Road · Structure no. 08646

Built
1981
44 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

243rd Avenue over Cap Canal is a prestressed concrete stringer/multi-beam or girder carrying 243rd Avenue over Cap Canal in Maricopa County, Arizona. It was built in 1981, so it is 44 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2042. The structure is 85 ft (25.9 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries243rd Avenue
CrossesCap Canal
Location2.33 MI S of Jomax Road
RouteCity Street 0
StateArizona
Coordinates33.6901, -112.5823
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating81 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span84 ft (25.6 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic35 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 243rd Avenue over Cap Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is 243rd Avenue over Cap 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 December 2024.

How much traffic does 243rd Avenue over Cap Canal carry?

About 25 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 243rd Avenue over Cap Canal?

The structure is 85 ft (25.9 m) long with a longest span of 84 ft (25.6 m) and a deck 39 ft wide.

Who owns 243rd Avenue over Cap Canal?

It is owned by the Town or Township Highway Agency.