US Bridges

Cave Creek Road over Cap Canal

Fair

Maricopa County, Arizona · 0.45 MI S of Deer Valley · Structure no. 09675

Built
1979
46 years old
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
2 main spans
Daily traffic
52,981
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cave Creek Road over Cap Canal is a prestressed concrete stringer/multi-beam or girder carrying Cave Creek Road over Cap Canal in Maricopa County, Arizona. It was built in 1979, so it is 46 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 52,981 vehicles a day, roughly 4% of them trucks, projected to reach 52,991 by 2041. The structure is 160 ft (48.8 m) long and 82 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCave Creek Road
CrossesCap Canal
Location0.45 MI S of Deer Valley
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6806, -112.0311
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating46.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span76 ft (23.2 m)
Deck width82 ft (25 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,981 (2021)
Projected traffic52,991 by 2041
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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 Cave Creek Road over Cap Canal built?

It was built in 1979, making it 46 years old in 2025.

What condition is Cave Creek Road 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 November 2022.

How much traffic does Cave Creek Road over Cap Canal carry?

About 52,981 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Cave Creek Road over Cap Canal?

The structure is 160 ft (48.8 m) long with a longest span of 76 ft (23.2 m) and a deck 82 ft wide.

Who owns Cave Creek Road over Cap Canal?

It is owned by the City or Municipal Highway Agency.