CARRAPATELO DAM

PURPOSE - Hydroelectric / Navigation
LOCATION GENERAL FEATURES
District - Porto
Municipality - Marco de Canavezes
Site - Mourilho
River Basin - Douro
River - Douro river
Promoting entity - CPPE, Cª. Portuguesa de Produção de Electricidade, SA
Owner (RSB) - CPPE
Engineering by - Hidro Eléctrica do Douro
Construction by - ETABRIPOL
Project year - 1964
Year of completion - 1972
HYDROLOGY RESERVOIR
River basin area - 92050 km2
Mean annual rainfall - 582 mm
Mean annual runoff - 5610300 x 1000 m3
Flood runoff - 22000 m3/s
Return period - 1000 years
Reservoir area - 9520 x 1000m2
Gross capacity - 148400 x 1000m3
Effective storage - 9000 x 1000m3
Normal water level (NWL) - 46,5 m
DAM
Concrete - Gravity
Height above foundation - 57 m
Crest elevation - 55 m
Crest length - 400 m
Foundation - Granite
Volume of dam body - 190 x 1000 m3
SPILLWAY BOTTOM OUTLET
Location - Dam body
Control type - Controlled
Spillway type - Over the dam
Sill elevation - 31,8 m
Sill length - 156 m
Number of gates - 6 radial gates
Energy dissipation - Silling basin
Location - Thalweg
Type - Through the dam
Section - 2x7,4=4,8 m2
Upstream control - No
Downstream control - Yes
Energy dissipation - Stilling basin
POWER PLANT
Type - Contiguous to the dam
Number of installed units - 3
Type of units - Kaplan
Power installed capacity - 201 MW
Power production - 870,6 GWh


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