US Bridges

Mcdowell Road EB over Indian Bend Wash

Fair

Maricopa County, Arizona · 0.1 MI E of JCT Miller RD · Structure no. 09358

Built
1974
51 years old, rebuilt 2014
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
216 ft
4 main spans
Daily traffic
36,851
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mcdowell Road EB over Indian Bend Wash is a concrete continuous slab carrying Mcdowell Road EB over Indian Bend Wash in Maricopa County, Arizona. It was built in 1974 and reconstructed in 2014, so it is 51 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 5 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 36,851 vehicles a day, roughly 5% of them trucks, projected to reach 36,861 by 2042. The structure is 216 ft (65.8 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMcdowell Road EB
CrossesIndian Bend Wash
Location0.1 MI E of JCT Miller RD
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.4658, -111.916
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
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 typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length216 ft (65.8 m)
Longest span59 ft (18 m)
Deck width48 ft (14.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,851 (2024)
Projected traffic36,861 by 2042
Trucks5%
Lanes on structure3
Traffic directionOne-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mcdowell Road EB over Indian Bend Wash built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2014.

What condition is Mcdowell Road EB over Indian Bend 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 March 2024.

How much traffic does Mcdowell Road EB over Indian Bend Wash carry?

About 36,851 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mcdowell Road EB over Indian Bend Wash?

The structure is 216 ft (65.8 m) long with a longest span of 59 ft (18 m) and a deck 48 ft wide.

Who owns Mcdowell Road EB over Indian Bend Wash?

It is owned by the City or Municipal Highway Agency.