Bokaro, July 8: Built in the late 60s to supply water to Bokaro steel plant and the township, Tenughat dam is now looking to increase capacity by more than 40 per cent to fulfil growing demand from new industries, Dhanbad and even parts of Bengal. Tenughat dam, whose concrete canal snakes through the district for about 34 km, now plans to store in its reservoir 882 feet of water as opposed to the present 850 feet. Dam authorities have, therefore, decided to acquire 494 acre in Gomia block to raise the capacity of the dam to store an additional 6.87 lakh acre feet of water