US Bridges

Alamo RD over Wash

Good

Mohave County, Arizona · 4.7 MI SE JCT I-40 · Structure no. 11084

Built
1996
29 years old
Condition
Good
inspected September 2021
Type
Culvert
Steel
Length
43 ft
4 main spans
Daily traffic
371
2019 count
Owner
County
County Highway Agency

About this bridge

Alamo RD over Wash is a steel culvert carrying Alamo RD over Wash in Mohave County, Arizona. It was built in 1996, so it is 29 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 371 vehicles a day, roughly 5% of them trucks, projected to reach 381 by 2039. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAlamo RD
CrossesWash
Location4.7 MI SE JCT I-40
RouteCounty Highway 0
CountyMohave County
StateArizona
Coordinates34.8485, -114.109
Functional classRural Local

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 inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic371 (2019)
Projected traffic381 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Alamo RD over Wash built?

It was built in 1996, making it 29 years old in 2025.

What condition is Alamo RD 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 September 2021.

How much traffic does Alamo RD over Wash carry?

About 371 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Alamo RD over Wash?

The structure is 43 ft (13.1 m) long with a longest span of 8 ft (2.4 m).

Who owns Alamo RD over Wash?

It is owned by the County Highway Agency.