11. The power station turbine was run by water supplied from the Inangahua River via two tunnels and a headrace flume. 12. From the canal, small headraces feed two undershot water wheels in the central section of the Green Pump House. 13. The buildings include the main mill building, several lime kilns, a headrace wall, and an office building. 14. Water from an intake on the saddle dam travels through a headrace tunnel to the power station which is located underground. 15. Water from the Ufsarl�n pond is diverted down a long, diameter headrace tunnel where it joins the H�lsl�n reservoir headrace tunnel. 16. Water from the Ufsarl�n pond is diverted down a long, diameter headrace tunnel where it joins the H�lsl�n reservoir headrace tunnel. 17. In 1929 Fairbairn donated a cup and the races have continued ever since in their current form, a long distance headrace . 18. The headrace ( or water inlet ) for the powerhouse and the powerhouse itself are on the north side of the dam. 19. Connecting the upper reservoir and the power plant will first be two headrace tunnels, one long and the other in length. 20. Water from the upper reservoir is sent to the underground power station down near the lower reservoir through headrace / penstock pipes.
