PARADELA DAM

PURPOSE - Hydroelectric / Diversion
LOCATION GENERAL FEATURES
District  - Vila Real
Municipality - Montalegre
Site- Paradela
River Basin - Cávado
River - Cávado river
Promoting entity - CPPE, Cª. Portuguesa de Produção de Electricidade, SA
Owner - CPPE
Engineering by - Hidro Eléctrica do Cávado
Construction by - SEOP
Year of completion - 1956
HYDROLOGY RESERVOIR
River basin area - 269 km2
Reservoir area - 3 800 x 1 000m2
Gross capacity- 164 400 x 1 000m3
Effective storage - 159 000 x 1 000m3
Normal water level (NWL) - 740 m
Maximum flood level (MFL) - 741,6 m
DAM
Rockfill - With upstream curtain
Height above foundation - 112 m
Height above streambed - 110 m
Crest elevation - 743,5 m
Crest length - 540 m
Foundation - Granite
Volume of dam body
- 2 700 x 1 000 m3
SPILLWAY BOTTOM OUTLET
Location  - Reservoir + Right margin
Control type - Controlo misto
Spillway type - Shaft - chute spillway
Sill elevation - 720 m
Number of gates -
1 radial gate
Maximum discharge -
683 m3/s
Energy dissipation - Flip bucket
Location - Thalweg
Type - Conduit under the embankment
Section - d 500 mm
Maximum discharge - 65 m3/s
Upstream control  - Gate 0,80x0,80
Downstream control - Yes
Energy dissipation - Hollow jet
POWER PLANT
Type - Reservoir
Type of units - Francis
Mean annual energy output - 253 GWh


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