Indepth Civil Engineering carried out the construction of 2 No. manhole shafts using segmental rings and a top down construction. These were constructed over an existing live culvert and included headings for the inclusion of a new culvert diversion, which was also carried out by Indepth. The shafts were circa 6.0 m diameter and 5.0 m deep. The work was carried out in a safe and professional way with the client being very happy with the finished product. Where problems arose, Indepth contributed greatly to solving the problem.