The majority of Brunel's design for Bath was raised up on a system of earth embankments and stone arches. His objective in all his designs were to maintain his "billiard table" design philosophy. The main obstacle was a skew bridge crossing of the River Avon to link with the main Bath Spa station in the centre of the City. At the approach to the Oldfield Park section a cutting was necessary to maintain the desired level. It was into these cutting embankments that the two platforms were later accommodated.