21. Construction on the headrace tunnels was done by three full-face tunnel boring machines, while remaining areas were drilled and blasted. 22. A long headrace tunnel connects the upper reservoir to the underground power station which will house 4 x reversible Francis pump-turbines. 23. Water from the upper reservoir is sent to the underground power station down near the lower reservoir through of headrace / penstock pipes. 24. The water power engine usually had a headrace and a tailrace ( " Aufschlagr�sche " and " Abzugsr�sche " ). 25. The historic district comprises the 1887 dam, headrace , and the three-story frame mill whose oldest sections was built in 1892. 26. Water from the upper reservoir is sent to the underground power station down near the lower reservoir through a long headrace / penstock pipe. 27. Water from the upper reservoir is sent to the underground power station down near the lower reservoir through two long headrace / penstock pipes. 28. It consists of a tall gravity dam which diverts water through a long headrace tunnel to the power station which discharges back into the Chenab. 29. The concrete dam includes eight bottom outlets, a spillway and four power intakes and conduits, a stilling basin, headrace and tailrace channels. 30. In a conventional breastshot design, the water would flow off the edge of the headrace , and fall onto the blades of the wheel.
