US Bridges

11th Avenue over Cave Creek

Good

Maricopa County, Arizona · 0.4 MI South of Bell Road · Structure no. 07734

Built
1987
38 years old
Condition
Good
inspected November 2020
Type
Culvert
Concrete Continuous
Length
73 ft
4 main spans
Daily traffic
1,500
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

11th Avenue over Cave Creek is a concrete continuous culvert carrying 11th Avenue over Cave Creek in Maricopa County, Arizona. It was built in 1987, so it is 38 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 1,500 vehicles a day, roughly 3% of them trucks, projected to reach 1,510 by 2040. The structure is 73 ft (22.1 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries11th Avenue
CrossesCave Creek
Location0.4 MI South of Bell Road
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6339, -112.0871
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2020
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating46.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length73 ft (22.1 m)
Longest span12 ft (3.7 m)
Deck width51 ft (15.6 m)
Roadway width50 ft (15.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2020)
Projected traffic1,510 by 2040
Trucks3%
Lanes on structure2
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 11th Avenue over Cave Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is 11th Avenue over Cave Creek 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 November 2020.

How much traffic does 11th Avenue over Cave Creek carry?

About 1,500 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is 11th Avenue over Cave Creek?

The structure is 73 ft (22.1 m) long with a longest span of 12 ft (3.7 m) and a deck 51 ft wide.

Who owns 11th Avenue over Cave Creek?

It is owned by the City or Municipal Highway Agency.