FT. CARSON, Colo. -- An Army environmental study says Colorado's Fort Carson is the best location for a new combat aviation brigade.

Members of Colorado's congressional delegation announced the findings Friday.

The Army concluded that it favors consolidating aircraft of up to one combat aviation brigade at Joint Base Lewis-McChord in Washington and creating a brand new combat aviation brigade at Fort Carson outside Colorado Springs.

The stationing of a CAB at JBLM would cause traffic volume on the base to increase, a according to a report released today by the Army.  

A final decision on where to put the new brigade is expected after March 7.

If the Army picks Fort Carson, 2,700 new soldiers and 120 helicopters would begin arriving in Oct. 2012.