Unit B Irrigation & Drainage District

The Unit B Irrigation and Drainage District operated and maintains the water distribution facilities of the Yuma Auxiliary Project. The Yuma Auxiliary Project is one of the earliest Reclamation projects following the Reclamation Act of 1902 and consists of the original plans for irrigating 45,000 acres of agricultural land on the adjacent Yuma Mesa, located approximately 5 miles south of the city of Yuma in southwestern Arizona. The UNIT B Main Canal and distribution system provides water to up to 3,400 acres of irrigated land on the Yuma Mesa. The Main Canal is a 3.6 mile long concrete-lined canal with a capacity of approximately 100 cfs. The Main Canal receives water from the Colorado River diversion at the Imperial Dam and is delivered through the Gila Project. The Unit B distribution system consists of concrete-lined canals and underground pipelines.

Engineering

On-Call General Engineering Services

GEORGE CAIRO ENGINEERING, INC. (GCE) is currently serving as the District Engineer and we also provide support on related technical services including the development of District Standards on an on-call as needed basis. GCE also supports the Unit B Irrigation and Drainage District in their management of urbanization impacts inclusive of permitting, planning, design, and construction services efforts. All relocations or modifications to the Districts facilities due to development and urbanization are designed by GCE. In addition, impacts to the Unit B Irrigation and Drainage District's operations and maintenance are evaluated, and construction inspections are performed to ensure compliance with plans and specifications.

Further GCE is responsible for the coordination and due diligence for the United States Bureau of Reclamation review and permitting approval process for impacts to federally owned interest. GCE developed collaboratively with the District a permitting and federal due diligence review and assistance program. Relocations or modifications to the Districts facilities due to development and urbanization are reviewed by GCE for compliance with federal permitting requirements for acquisition, abandonment, relocation and or facilities modification.

Representative GCE projects completed for the Central Arizona Irrigation and Drainage District include the following:

  • Standard Details and District Master Specifications
  • Management of District Facility Crossings

Map of District

Click here to see a map of this district

Contacts:

George J. Cairo, P.E.
GEORGE CAIRO ENGINEERING, INC.
1630 South Stapley Drive
Stapley Center, Suite 117
Mesa, Arizona 85204
480.921.4080
480.921.4087 (Fax)
602.690.6661 (Cell)
gcairo@gcairoinc.com

Maaike Hough, P.E., Program Manager
GEORGE CAIRO ENGINEERING, INC.
1630 South Stapley Drive
Stapley Center, Suite 117
Mesa, Arizona 85204
480.921.4080
480.921.4087 (Fax)
mhough@gcairoinc.com

Orrin Hoppe, General Manager
Unit B Irrigation & Drainage District
15875 S. Avenue A
Somerton, AZ 85350
928.627.8891









District Website

If you have further questions, comments or concerns regarding the Yuma County Water Users' Association please click here to visit their website.