An archaeological watching brief was undertaken between Autumn 2000 and Spring 2001 on 15 construction access shafts along the line of a major sewer pipeline extending between Chesterton (TL 5072 9374) and West Cambridge (TL 3536 8661). One shaft, M5, which has been previously reported upon, revealed a significant Roman to Post-Medieval archaeological sequence. Of the remaining 14, shaft M6 may have encountered part of the outer edge of the 4th century ditch of the Roman town, while shaft M3 revealed a Post-Medieval river defence bank. Several other shafts revealed less significant Post-Medieval features and buried soils.