Specifications include, but are not limited to: The scope of work involves cleaning approximately 4,050 lineal feet of a 4 foot wide by 6.25 foot high arch shaped unreinforced concrete sewer tunnel. Manhole depths range from 22 feet to 107 feet. Tunnel location, materials, details of work, and other data are provided in Exhibit 2. Bypass pumping of flows is not expected to be required during cleaning or during the pre-cleaning closed circuit television (CCTV) or post-cleaning CCTV/Sonar inspection work. However, should the Contractor require bypass pumping, the Contractor must be required to provide all labor, equipment materials and supervision to complete the work and to do so in accordance with the requirements herein at no additional cost to the City;