The U.S. Army onFriday released a broad study on the effect of moving 22,000 military jobs to Fort Belvoir, a document instantly drawing fire for its calculation of necessary road improvements surrounding the Fairfax County base.

Belvoir is slated to nearly double in size by 2011 under Base Realignment and Closure mandates. The draft environmental impact statement proposes that $458 million worth of transportation fixes, all unfunded, would be needed under the Army’s preferred plan to manage the new traffic generated by the federally imposed job shift.