  We present a fully three-dimensional initial state model for relativistic
heavy-ion collisions at RHIC Beam Energy Scan (BES) collision energies. The
initial energy and net baryon density profiles are produced based on a
classical string deceleration model. The baryon stopping and fluctuations
during this early stage of the collision are investigated by studying the net
baryon rapidity distribution and longitudinal decorrelation of the transverse
geometry.
