 At the projected pool elevation of 645 feet ( 197 m ) , the resulting reservoir would have had a total capacity of 1 @,@ 145 @,@ 000 @,@ 000 acre feet ( 1 @,@ 410 km3 ) . The full pool length would have been about 270 miles ( 435 km ) , and the maximum width would have been 80 miles ( 129 km ) . The resulting lake would have had approximately 3 @,@ 600 miles ( 5 @,@ 800 km ) of shoreline and a total surface area of about 9 @,@ 844 square miles ( 25 @,@ 496 km2 ) . Because the Yukon also is a transportation route , transshipment facilities were planned for below and above the dam site and would have been connected by road and rail links . Because of the large size of the proposed reservoir and the need to allow some flow of the Yukon River downstream of the dam site for river navigation and fishing , engineers anticipated that filling the reservoir would take no fewer than 16 years to complete . 
