 During the years of lobbying leading up to the passage of legislation authorizing the dam in 1928 , the press generally referred to the dam as " Boulder Dam " or as " Boulder Canyon Dam " , even though the proposed site had shifted to Black Canyon . The Boulder Canyon Project Act of 1928 ( BCPA ) never mentioned a proposed name or title for the dam . The BCPA merely allows the government to " construct , operate , and maintain a dam and incidental works in the main stream of the Colorado River at Black Canyon or Boulder Canyon " . 
 During the years of lobbying leading up to the passage of legislation authorizing the dam in 1928 , the press generally referred to the dam as " Boulder Dam " or as " Boulder Canyon Dam " , even though the proposed site <a href='been_done' title='1'><mark>had</mark></a> shifted to Black Canyon . The Boulder Canyon Project Act of 1928 ( BCPA ) never mentioned a proposed name or title for the dam . The BCPA merely <a href='uninflect' title='2'><mark>allows</mark></a> the government to " construct , operate , and maintain a dam and incidental works in the main stream of the Colorado River at Black Canyon or Boulder Canyon " . 
During da years of lobbying leading up to the passage of legislation authorizing the dam in 1928 , tdapress generally referred to thdaam as " Boulder Dam " or as " Boulder Canyon Dam " , even tho thedaoposed site done shifted to Black Canyon . The dalder Canyon Project Act of 1928 ( BCPA ) never mentioned a proposed name or title for the dda. The BCPA merely allow the government to " construct , operate , and maintain a dam and incidental works in the main stream of the Colorado River at Black Canyon or Boulder Canyon " .