The Dalles Project Engineering Data


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The Dalles Project - Main Page

Facilities in Operation

Pumping Plants	9
Surface Reservoirs, concrete lined	3
Reservoirs, steel tanks (1 elevated, 5 at ground level)	6
Pressure Pipeline	46 mi

Carriage Facilities

Primary Discharge Line

Type:	Pretensioned concrete pipe
Location	Extending from Mill Creek Pumping Plant to Reservoir A at Pumping Plant "A" site.
Construction period
Diameter	36 in
Length	6,283 ft
Capacity	54.2 cfs

Distribution System

Buried pipe system with pipes ranging in diameter from 36 to 4 inches, having a total length of 236,600 ft. Pretensioned concrete cylinder, mortar lined and coated steel, and asbestos-cement pipe used. Pressures ranging from 65 to 325 lb/in² are sufficient to operate sprinkler irrigation systems on individual tracts.

Pumping Plants

Designation	Number of units	Total capacity, cfs	Total dynamic head, ft	Total horsepower
Mill Creek	5	54.20	228	1,800
"A"	5	51.00	419	2,500
"B"	3	5.00	256	275
"C"	2	1.64	203	80
"D"	5	17.00	207	620
"E"	4	9.80	158	250
"F"	5	42.85	307	2,150
"G"	2	1.66	150	60
"J"	3	3.60	110	70