Specifications include, but are not limited to: Color Closed Circuit Television (CCTV), Sonar and Laser Profile inspection of the interior of various diameter sanitary and combined sewer tunnels and other pipelines within the King County Wastewater Conveyance system. 2024 Elliott Bay Int. Sec. 6 (Second Ave. Tunnel) 10,638 102 05 & 06 W Mercer Street (Mercer Street Tunnel) 6,307 176 07 Lake Union Tunnel (Lake Union Tunnel) 5,972 72 04 Eastside Int. Sec. 5-7 (Hazelwood Tunnel) 11,720 78 01 & 02 Lake City Tunnel (N. Portal to Ravenna Access) 10,088 96 08 Lake City Tunnel (Ravenna Access to Regulator) 6,037 96 09 2026 SE Lake Sammamish Pressure Sewer 26,205 16,20 12 2027 Fort Lawton Bifurcation Structure (NINT.B21-10A/WPTP Tunnel) 8,741 144 10 NINT.B21-14 to B21-15A Tunnel 3,610 144 10 & 11 NINT.B21-15A to B21-15Tunnel 99 132 10 & 11 NINT.B21-15 to WPTP Tunnel 2,823 132 10 & 11 2028 Elliott Bay Int. Sec. 6 (Second Ave. Tunnel) 10,638 102 05 & 06 Eastside Int. Sec. 5-7 (Hazelwood Tunnel) 11,720 78 01 & 02
