US Bridges

IRR SR 95 over Willow Alley

Good

Mohave County, Arizona · 19.2 MI S JCT I 40 · Structure no. 06629

Built
1977
48 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
27,255
2018 count
Owner
State
State Highway Agency

About this bridge

IRR SR 95 over Willow Alley is a concrete continuous culvert carrying IRR SR 95 over Willow Alley in Mohave County, Arizona. It was built in 1977, so it is 48 years old, older 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 27,255 vehicles a day, roughly 6% of them trucks, projected to reach 27,265 by 2038. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIRR SR 95
CrossesWillow Alley
Location19.2 MI S JCT I 40
RouteState Highway 95
CountyMohave County
StateArizona
Coordinates34.47758, -114.34872
Functional classUrban Other Principal Arterial

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 inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic27,255 (2018)
Projected traffic27,265 by 2038
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR SR 95 over Willow Alley built?

It was built in 1977, making it 48 years old in 2025.

What condition is IRR SR 95 over Willow Alley 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 March 2024.

How much traffic does IRR SR 95 over Willow Alley carry?

About 27,255 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is IRR SR 95 over Willow Alley?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns IRR SR 95 over Willow Alley?

It is owned by the State Highway Agency.