Presa, gutxi gora behera, gaur eguneko Mendiola industrialdeako zubia baino metro batzuk gorago zegoen. Zentrala, berriz, Enbalajes Ansola enpresaren esparruan, zubiaren parean. Batetik bestera Iribeko erretena esaten zioten ubidea zegoen.
Zentralera heltzeko pasabidea zegoen, 30 metro luze eta 1,10 metro zabal, oinezkoentzat; bertako etxeak Dominganekua zuen izena.
Zentralak bertako langilea zen Manuel Egiazu Lezetak erosi zuen, 1969.ko maiatzak 29an. Eta urtebete geroago, 1970.ko apirilak 25ean Jose Maria Orbegozo Altunari saldu zion.
Mapa kargatzen...
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Presak 30 metro zabal zen, eta segunduko 1.500 litro ur hartzen ziren. Ubidea edo erretena, ibaiaren eskumako aldetik zetorrena, 985 metro luze zen; Iribeko erretena esaten zitzaion.