As part of its design and build contract for the Srisailam left bank canal tunnel scheme of the Alimmineti Madhava Reddy (AMR) project, Jaiprakash Associates Limited (JAL) will use two Robbins 10 m-diameter hard rock double shield TBMs and related equipment. The machines will bore a 43.5 km-long tunnel (tunnel T-1) of 9.2 m finished circular diameter. Click here. Visit www.robbinstbm.com and www.jilindia.com 26/06.

India's three-decades-old Srisailam Left Bank Canal project SLBC, previously known as the AMR project, has stalled due to reported non-payment of contractors. The deadline for completion of the 43.5 km-long Nalgonda and 18.8 km Veligonda TBM tunnels expired a month ago. Nalgonda will be the world's longest bored tunnel. The Srisailam dam, with a huge capacity 800 sq km reservoir and 1,670 MW electricity output, is key to power supplies in Andhra Pradesh state. The 240 m-high dam came under threat a year ago when record inflows were experienced from the Krishna river. For contract details visit www.coastalprojects.co.in/ProjectAwardedLookup.asp and for project background visit www.aponline.gov.in. Visit tunnelbuilder archive in/42 and in/45 for project history. 40/10.