US Bridges

Swanson Ave over Pima Wash

Good

Mohave County, Arizona · 0.5 MI W JCT Acoma Blvd S · Structure no. 11158

Built
2011
14 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
9,982
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Swanson Ave over Pima Wash is a concrete continuous culvert carrying Swanson Ave over Pima Wash in Mohave County, Arizona. It was built in 2011, so it is 14 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 9,982 vehicles a day, roughly 1% of them trucks, projected to reach 9,992 by 2038. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSwanson Ave
CrossesPima Wash
Location0.5 MI W JCT Acoma Blvd S
RouteCity Street 0
CountyMohave County
StateArizona
Coordinates34.4739, -114.3288
Functional classUrban Collector

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 inspectionFebruary 2024
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 rating55 US tons
Inventory rating33 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (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 traffic9,982 (2015)
Projected traffic9,992 by 2038
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Swanson Ave over Pima Wash built?

It was built in 2011, making it 14 years old in 2025.

What condition is Swanson Ave over Pima Wash 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 February 2024.

How much traffic does Swanson Ave over Pima Wash carry?

About 9,982 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Swanson Ave over Pima Wash?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns Swanson Ave over Pima Wash?

It is owned by the City or Municipal Highway Agency.