Reservoir Dam
QUEBRADA DE ULLÚM
SAN JUAN
This project helped to develop and increase the cultivated areas in the Province of San Juan. It also helped to mitigate floods, produce electricity, supply drinking water to the population and create conditions to stimulate tourism in the region.
This was a dam designed to regulate irrigation flows in the Valley of Tulum, Ullum and Zonda
PROJECT
Quebrada de Ullum Reservoir Dam and complementary works, Province of San Juan
CLIENT
Secretaría de Estado de Recursos Hídricos del Gobierno de San Juan
DESCRIPTION OF WORKS
Construction of a dam of graded loose materials of 300 m in length and 53 m high, with a spillway, irrigation diversion (6 m-diameter tunnel excavated in rock), bottom outlet (6.20 m-diameter tunnel excavated in rock), a lateral dike and complementary works that included the relocation of the expressway No. 14 and drainage canals.
The dam comprises three main elements: a waterproof core, filters and shoulder walls. The core is composed of fine compacted granules and a concrete slab which is 80 m long and 40 m wide. The filters, made of graded sand, are located downstream and upstream of the dam and the walls are made of compacted alluvial material.
The project was vital in helping to develop and increase cultivated areas, mitigate floods, produce electricity, supply drinking water to the population and create conditions to stimulate leisure and tourism activities in the region.
The construction of a lateral dam located in the watershed between Ullum and Zonda was necessary in order to prevent flooding in the Zonda Valley area. This consists of a dam with a vertical waterproof core and alluvium walls. It was founded on alluvial materials and lake deposits. It is 2,700 m long and its total volume is 330,000 m3.
