Wellton-Mohawk Irrigation System, Wasteway No. 1, Wellton-Mohawk Canal, North side of Wellton-Mohawk Canal, bounded by Gila River to North & the Union Pacific Railroad & Gila Mountains to south, Wellton, Yuma County, AZ

Significance: With the completion of the irrigation system, Colorado River water was delivered to previously arid lands in the lower Gila River Valley. A wastewater allows for the rapid discharge of water from the system. Wasteway No. 1 is the largest wasteway on the system, and its use of an automatic float system to regulate discharge makes it unique to the Wellton-Mohawk Division. Although not individually eligible for listing in the National Register of Historic Places, Wasteway No. 1 contributes to the function and significance of the Wellton-Mohawk irrigation system.
Survey number: HAER AZ-68-F