The ABPP expanded the 1993 Study Area to include the location of Federal maneuvers against Rivers’ Bridge, Buford's Bridge, and Broxton's Bridge. These maneuvers, coupled with the flanking of the Confederate position at Rivers' Bridge, made the defense of the Salkehatchie River untenable.

The ABPP reduced the Core Area to only those areas that came under Confederate fire, and locations where Federal forces engaged in diversionary and flank attacks.