ALTO LINDOSO DAM

PURPOSE - Hydroelectric
LOCATION GENERAL FEATURES
District - Viana do Castelo
Municipality  - Ponte da Barca
Site - Lindoso
River Basin - Lima
River  - Lima river
Promoting entity - CPPE, Cª Portuguesa de Produção de Electricidade, S.A
Owner  (RSB) - CPPE
Engineering by - EDP; DOEPT
Construction by - ENGIL
Project year - 1983
Year of completion - 1992
HYDROLOGY RESERVOIR
River basin area - 1525 km2
Mean annual rainfall - 1950 mm
Mean annual runoff - 1329200 x 1000 m3
Flood runoff - 3500 m3/s
Return period - 1000 years
Reservoir area - 1050 x 1000m2
Gross capacity - 379010 x 1000m3
Effective storage - 347910 x 1000m3
Dead storage - 2100 x 1000m3
Normal water level (NWL) - 338 m
Maximum flood level (MFL) - 339 m
Minimum operating level - 280 m
DAM
Concrete - Double curvature arch dam
Height above foundation - 110 m
Crest elevation - 339 m
Crest length - 297 m
Foundation - Granite
Volume of dam body - 308,5 x 1000 m3
SPILLWAY BOTTOM OUTLET
Location - Right bank
Control type - Controlled
Spillway type - Shaft spillway
Sill elevation - 
Sill length - 35,7 m
Number of gates - 6 radial
Maximum discharge -
2760 m3/s
Energy dissipation - Flip bucket
Location - Thalweg
Type  - Through the dam
Section - 2 x 2,7 m
Maximum discharge - 400 m3/s
Upstream control - Yes
Downstream control - Yes
Energy dissipation - Hollow jet
POWER PLANT
Type - Underground
Number of installed units - 2
Type of units - Francis
Power installed capacity - 630 MW
Mean annual energy output - 948 GWh


ARROWA.GIF (181 bytes)            homeicona.gif (359 bytes)