US Bridges

Sossaman Road over Sossaman Drain

Good

Maricopa County, Arizona · 0.35 MI N of Southern Ave · Structure no. 07558

Built
1988
37 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
18,578
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sossaman Road over Sossaman Drain is a concrete continuous culvert carrying Sossaman Road over Sossaman Drain in Maricopa County, Arizona. It was built in 1988, so it is 37 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 18,578 vehicles a day, roughly 5% of them trucks, projected to reach 18,588 by 2039. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSossaman Road
CrossesSossaman Drain
Location0.35 MI N of Southern Ave
RouteCity Street 0
StateArizona
Coordinates33.3985, -111.6677
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
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 alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic18,578 (2019)
Projected traffic18,588 by 2039
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$100,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sossaman Road over Sossaman Drain built?

It was built in 1988, making it 37 years old in 2025.

What condition is Sossaman Road over Sossaman Drain 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 July 2023.

How much traffic does Sossaman Road over Sossaman Drain carry?

About 18,578 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Sossaman Road over Sossaman Drain?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns Sossaman Road over Sossaman Drain?

It is owned by the City or Municipal Highway Agency.