Two new trenchless tenders have been recently announced in Istanbul, the largest Turkish metropolitan city having a population of 15.4 million.
The first tender includes 65 km of 300 mm to 600 mm diameter UV CIPP lining and 4.5 km of 110 mm to 630 mm diameter horizontal directional drilling. A tender meeting was held on 8 November, 2021 at the headquarters of Istanbul Water and Sewerage Administration. More than twenty general contracting companies participated in the tender process. Lining and drilling works are expected to start in the beginning of 2022.
The second tender includes 65 km of 300 mm to 600 mm diameter close-fit sliplining (fold & form) and 3 km of 110 mm to 630 mm diameter horizontal directional drilling. A tender meeting will be held on 23 November, 2021 at the headquarters of Istanbul Water and Sewerage Administration.
Some 100 km of UV CIPP lining and 120 km of close-fit sliplining (fold & form) projects have been completed in Istanbul since 2018. Several UV CIPP lining and close-fit sliplining (fold & form) projects are under way in other Turkish metropolitan citiesincluding Izmir, Kocaeli, and others.
Some 14 tenders for CCTV inspection and cleaning of sewer lines have been held by Istanbul Water and Sewerage Administration since 2020. The condition of 9,217 km long sewer lines are being assessed across these 14 projects.
A further 7 microtunnelling projects are currently under construction for developing the water and wastewater infrastructure of Istanbul. Many microtunnel boring machines (MTBMs) presently work in the 54 km long projects.
There are also 13 new metro lines currently under construction in Istanbul. Dozens of tunnel boring machines (TBMs) presently work across the 162 km long projects.
Turkish Society for Infrastructure and Trenchless Technology (TSITT) has hosted the annual No-Dig Turkey show since 2011. ISTT and TSITT jointly held International No-Dig 2015 Conference and Exhibition in Istanbul with a great success including 94 exhibiting companies from 21 countries.
TSITT will host the next No-Dig Turkey 2022 Conference and Exhibition between 2 and 3 November 2022 at the Istanbul Lutfi Kirdar International Convention and Exhibition Centre in conjunction with the 6th Water Loss Forum and Exhibition. Details of the events are available from www.nodigturkey.com and www.waterlossforum.org
