Project Profile

Cascade Grain Ethanol Plant
Clatskanie, OR

JH Kelly constructed this dry mill ethanol plant, the largest on the West Coast and one of the ten largest in the US. The plant has a capacity of 108 million gallons per year (gpy) of undenatured ethanol with a design basis of operating 24 hours per day for 350 days per year.

JH Kelly will self-perform the following activities:

• Site preparation - 7,000 lf roadway with truck scales; 24,000 lf rail spur with rail scales and unit train grain unloading system sized for ten storage days; and stone columns for soil stabalization
• Concrete - 17,000 cubic yards of concrete
• Structural steel erection - 1,350 tons of structural steel and miscellaneous iron
• Structures - 2,500 sf administration building, 2,400 sf maintenance building, 30,000 sf process building, DDGS loadout enclosure, DDGS dryer (complete drying system including a thermal oxidizer/ heat recovery steam generator), DD&E structure, fermentation equipment building and control room
• Tanks, vessels and equipment - complete rail unloading and grain handling system, four carbon steel tanks, 20 stainless steel tanks, nine major process vessels including distillation beer column and ethanol dehydration molecular sieves
• Piping installation - 82,000 lf of pipe, over 175 miscellaneous pumps, heat exchanger, compressors, and blowers

• 82,000 lf of pipe fabricated and installed by JHK
• Peak manpower of 250
• Largest ethanol plant on the West Coast and one of the ten largest in the US
• 21 month duration