Yuma Desalting Plant

1  

Bypass drain

53 mi  

MODE siphon

0.65 mi  

Type:

Membrane

Location

Located about 4 miles west of Yuma, Arizona, near the Arizona Public Service Co.'s Yucca Powerplant.

Year Completed

1978-(Under construction) 

Capacity

113 cfs  

   Welton-Mohawk drainage influent

97,300 acre-ft  

   Plant product water effluent

68,500 acre-ft  

   Reject steam and bypass

28,800 acre-ft  

Salinity concentration:

   Welton-Mohawk drainage influent

2,900 ppm  

   Product water

295 ppm  

   Reject stream

9,400 ppm  

Return flow to the Colorado River

   Blended water

78,600 acre-ft  

   Product water

68,500 acre-ft  

   MODE water

10,100 acre-ft  

Location

The bypass drain extends from the terminus of the existing MODE at Morelos Dam in Arizona to the upper end of the Santa Clara Slough, about 30 miles north of the Gulf of California, in Mexico.

Construction period

1975-1977  

Total length

53 mi  

   Length in the US

16 mi  

   Length in Mexico

37 mi  

Maximum capacity

353 cfs  

   Reject stream capacity

62.3 cfs  

   Emergency MODE capacity

290.7 cfs  

Typical section in the US, concrete lined:

   Bottom width

12 ft  

   Side slopes

1.5:1  

   Lining thickness:

3 in  

   Water depth, weighted average

6.8 ft  

Typical section in Mexico, concrete lined:

   Bottom width

10.17 ft  

   Side slopes

2:1  

   Water depth

5.09 ft  

   Lining thickness

3.94 in  

   Freeboard

1.64 ft  

Location

Adjacent to the base of Prison Hill, extends under the railroad bridge and U.S. Highway 80 Alternate bridge, continues downstream along the south bank of the Colorado River.

Construction period

1975-76

Description:

Reinforced concrete pressure pipe with monolithic concrete transitions

   Length

0.65 mi  

   Diameter

10 ft  

   Capacity

353 cfs