Civil Works of the Hydroelectric Project Arenal Stage I-II

The "Civil Works for the Hydroelectric Project Arenal Stages I-II" contract wants to use the acknowledged hydroelectric potentials of the Yaguala river. The project consists in the realization of two parallel tunnels for the deviation of the Yaguala river of ca 300ml each. The construction will see two cofferdams and the dam of 270ml length and 100 ml height.  A 4,6km conduction tunnel will be built with drill and blast with a dinal shaft of 94m height and 3,2m diameter and a final 110ml penstock. Once complete the plant will generate up to 60MW.