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RESERVOIRS AND DAMS
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Arena Dam
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OVERVIEW
The Water And Sewerage Authority is pleased to welcome you to Arena Reservoir.
The huge softly ripping reservoir in Arena is a marriage of man-made technology and nature's geographical systems. The reservoir is sited in an area where natural faulting gives rise to steep elevations and low valleys that provide a water storage area of over 680 hectares (1700 acres).
The site was located between the El Pillar and Los Bajos faults and was covered with thick tropical forest which was cleared before the area was flooded to create the reservoir.
DAMS ACROSS THE WATER
Two dams were built at different points on the major rivers that flowed through the area - a small weir on the Tumpuna River
and a major earth fill dam across the Arena River. The Arena Dam is the largest ever built in Trinidad and Tobago reaching to 40.85 metres (134 feet) at its highest crest elevation. It has been built to withstand earthquakes of up to 8.0 on the Richter Scale.
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CONSERVATION
Located at the Arena Reservoir is the Tumpuna Pump Station from which the Water and Sewerage Authority (during the wet season when river levels are high) draws water from the river and diverts it to the reservoir for storage.
The reverse happens in the dry season when river levels run low. The water is pumped back into the Arena River where some of it is withdrawn for processing at the Caroni Water Treatment Plant.
LOCATION
Brazil
DAILY OUTPUT
181,818 cubic meters (M3/D)(North)
204,545 cubic meters (M3/D)(South)
COMPLETION DATE
1981
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View Arena Capacity (Recent)
View Arena Capacity (Historical)
View Arena Rainfall Data
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