US Bridges

Westar Drive over Lum Wash

Good

Maricopa County, Arizona · 110 S of Sunward DR · Structure no. 11483

Built
2007
18 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
88 ft
7 main spans
Daily traffic
760
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Westar Drive over Lum Wash is a concrete continuous culvert carrying Westar Drive over Lum Wash in Maricopa County, Arizona. It was built in 2007, so it is 18 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 760 vehicles a day, roughly 2% of them trucks, projected to reach 770 by 2042. The structure is 88 ft (26.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWestar Drive
CrossesLum Wash
Location110 S of Sunward DR
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.3343, -112.448
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating82 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans7
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic760 (2023)
Projected traffic770 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Westar Drive over Lum Wash built?

It was built in 2007, making it 18 years old in 2025.

What condition is Westar Drive over Lum 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 December 2023.

How much traffic does Westar Drive over Lum Wash carry?

About 760 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Westar Drive over Lum Wash?

The structure is 88 ft (26.8 m) long with a longest span of 10 ft (3 m).

Who owns Westar Drive over Lum Wash?

It is owned by the City or Municipal Highway Agency.