US Bridges

31st Avenue over Scatter Wash

Fair

Maricopa County, Arizona · 250 Ft N of Deer Valley R · Structure no. 10014

Built
1993
32 years old, rebuilt 1997
Condition
Fair
inspected November 2021
Type
Culvert
Concrete Continuous
Length
80 ft
7 main spans
Daily traffic
3,156
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

31st Avenue over Scatter Wash is a concrete continuous culvert carrying 31st Avenue over Scatter Wash in Maricopa County, Arizona. It was built in 1993 and reconstructed in 1997, so it is 32 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 3,156 vehicles a day, roughly 1% of them trucks, projected to reach 4,156 by 2030. The structure is 80 ft (24.4 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries31st Avenue
CrossesScatter Wash
Location250 Ft N of Deer Valley R
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.6845, -112.126
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span10 ft (3.2 m)
Deck width62 ft (18.9 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,156 (2012)
Projected traffic4,156 by 2030
Trucks1%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 31st Avenue over Scatter Wash built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 1997.

What condition is 31st Avenue over Scatter Wash 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 2021.

How much traffic does 31st Avenue over Scatter Wash carry?

About 3,156 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is 31st Avenue over Scatter Wash?

The structure is 80 ft (24.4 m) long with a longest span of 10 ft (3.2 m) and a deck 62 ft wide.

Who owns 31st Avenue over Scatter Wash?

It is owned by the City or Municipal Highway Agency.