US Bridges

Somerton Ave over Southeast Drain

Fair

Yuma County, Arizona · 1.0 MI S JCT Main ST · Structure no. 09270

Built
1952
73 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
3,036
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Somerton Ave over Southeast Drain is a concrete continuous slab carrying Somerton Ave over Southeast Drain in Yuma County, Arizona. It was built in 1952, so it is 73 years old, older 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 3,036 vehicles a day, roughly 2% of them trucks, projected to reach 3,046 by 2042. The structure is 48 ft (14.6 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSomerton Ave
CrossesSoutheast Drain
Location1.0 MI S JCT Main ST
RouteCity Street 0
CountyYuma County
StateArizona
Coordinates32.58217, -114.70992
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span18 ft (5.5 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic3,036 (2022)
Projected traffic3,046 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Somerton Ave over Southeast Drain built?

It was built in 1952, making it 73 years old in 2025.

What condition is Somerton Ave over Southeast Drain 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 February 2023.

How much traffic does Somerton Ave over Southeast Drain carry?

About 3,036 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Somerton Ave over Southeast Drain?

The structure is 48 ft (14.6 m) long with a longest span of 18 ft (5.5 m) and a deck 32 ft wide.

Who owns Somerton Ave over Southeast Drain?

It is owned by the City or Municipal Highway Agency.