 The main building of Erie 's Union Station , three @-@ stories tall , is of steel and masonry construction . The entire exterior is clad in " rough brown " brick and sandstone layered in a Flemish bond , trimmed in terracotta , and lined with granite at the ground level . The main station building has a frontage of 116 feet ( 35 m ) along Peach Street and 206 feet ( 63 m ) on 14th Street ; a two @-@ story , narrow extension continues another 403 feet ( 123 m ) towards Sassafras before terminating at a small , attached office building . The extension eased the transfer of mail , baggage , and freight between trains and street level while the offices of the freight company were housed in the attached building at the Sassafras Street end of the station complex . 
