Specifications and invitations. 4022. [Controls for 7.08-foot by 9-foot bulkhead gate hoist at pressure tunnel station 27+25 and for 7.08-foot by 9-foot fixed-wheel gate hoist at pressure tunnel station 255+30, and for 66-inch butterfly valves at Eklutna power plant, Eklutna project, Alaska], supplemental notice 2.