US Bridges

Loop 101 over Wash

Good

Maricopa County, Arizona · 0.33 MI W. of Hayden RD · Structure no. 07085

Built
2002
23 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete Continuous
Length
56 ft
5 main spans
Daily traffic
121,592
2021 count
Owner
State
State Highway Agency

About this bridge

Loop 101 over Wash is a concrete continuous culvert carrying Loop 101 over Wash in Maricopa County, Arizona. It was built in 2002, so it is 23 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 121,592 vehicles a day, roughly 7% of them trucks, projected to reach 121,602 by 2041. The structure is 56 ft (17.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLoop 101
CrossesWash
Location0.33 MI W. of Hayden RD
RouteState Highway 101
CountyMaricopa County
StateArizona
Coordinates33.65576, -111.91342
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2022
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 rating99 US tons
Inventory rating82 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length56 ft (17.1 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 traffic121,592 (2021)
Projected traffic121,602 by 2041
Trucks7%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Loop 101 over Wash built?

It was built in 2002, making it 23 years old in 2025.

What condition is Loop 101 over 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 October 2022.

How much traffic does Loop 101 over Wash carry?

About 121,592 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Loop 101 over Wash?

The structure is 56 ft (17.1 m) long with a longest span of 10 ft (3 m).

Who owns Loop 101 over Wash?

It is owned by the State Highway Agency.