US Bridges

75th Ave over Storm Drainage

Good

Maricopa County, Arizona · 0.1 MI N JCT 101 · Structure no. 06837

Built
1990
35 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
120,073
2015 count
Owner
State
State Highway Agency

About this bridge

75th Ave over Storm Drainage is a concrete continuous culvert carrying 75th Ave over Storm Drainage in Maricopa County, Arizona. It was built in 1990, so it is 35 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 120,073 vehicles a day, roughly 5% of them trucks, projected to reach 120,083 by 2037. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries75th Ave
CrossesStorm Drainage
Location0.1 MI N JCT 101
RouteState Highway 101
CountyMaricopa County
StateArizona
Coordinates33.66944, -112.22222
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,073 (2015)
Projected traffic120,083 by 2037
Trucks5%
Lanes on structure7
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 75th Ave over Storm Drainage built?

It was built in 1990, making it 35 years old in 2025.

What condition is 75th Ave over Storm Drainage 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 May 2021.

How much traffic does 75th Ave over Storm Drainage carry?

About 120,073 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is 75th Ave over Storm Drainage?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns 75th Ave over Storm Drainage?

It is owned by the State Highway Agency.