POCINHO DAM |
|
PURPOSE - Hydroelectric / Navigation | |
LOCATION | GENERAL FEATURES |
District -
Guarda Municipality - Vila Nova Foz Coa Site - Pocinho River Basin - Douro River - Douro river |
Promoting entity
- CPPE, Cª. Portuguesa de Produção de Electricidade, SA Owner - CPPE Engineering by - EDP Construction by - SOMAGUE Project year - 1974 Year of completion - 1982 |
HYDROLOGY | RESERVOIR |
River basin area
- 81 005 km2 Mean annual rainfall - 582 mm Mean annual runoff - 4 679 900 x 1 000 m3 Flood runoff - 15 100 m3/s Return period - 1 000 years |
Reservoir area
- 8 290 x 1 000m2 Gross capacity - 83 070 x 1 000m3 Effective storage - 12 240 x 1 000m3 Normal water level (NWL) - 125,5 m Maximum flood level (MFL) - 134,5 m |
DAM | |
Concrete -
Gravity Height above foundation - 49 m Crest elevation - 139 m Crest length - 430 m Crest width - 6,4 m Foundation - Rocha Volume of dam body - 120 x 10 00 m3 |
|
SPILLWAY | |
Location - Dam
body Control type - Controlled Spillway type - Over the dam Sill elevation - 112,2 m Sill length - 4 x 26 + 4,5 = 108,5 m Number of gates - 4 radial gates Maximum discharge - 15 000 m3/s Energy dissipation - Stilling basin |
|
POWER PLANT | |
Type - Underground,
run-of-water Number of installed units - 3 Type of units - Kaplan Power installed capacity - 186 MW Mean annual energy output - 534 GWh |