VALE DO ROSSIM DAM

PURPOSE - Hydroelectric / Diversion
LOCATION GENERAL FEATURES
District  - Guarda
Municipality - Gouveia
Site - Penhas Douradas
River Basin - Mondego
River - Fervença river
Promoting entity - HIDROCENEL, Energia do Centro, SA
Owner - HIDROCENEL
Engineering by- Hidro Eléctrica Serra da Estrela
Construction by- Hidro Eléctrica Serra da Estrela
Year of completion - 1956
HYDROLOGY RESERVOIR
River basin area - 5,4 km2
Reservoir area - 370 x 1 000 m2
Gross capacity - 3 500 x 1 000 m3
Effective storage - 3 400 x 1 000 m3
Dead storage - 100 x 1 000 m3
Normal water level (NWL) - 1436 m
Maximum flood level (MFL) - 1436,75 m
DAM
Concrete - Gravity (máscara)
Masonry
Height above foundation -
 27 m
Height above streambed - 17,46 m
Crest elevation - 1437,5 m
Crest length - 375 m
Crest width - 1,5 m
Foundation - Rock
Volume of dam body
- 25 x 1 000 m3
SPILLWAY BOTTOM OUTLET
Location - Dam body
Control type - Uncontrolled
Spillway type - Over the dam
Sill elevation - 1 436 m
Sill length -
60 m
Maximum discharge - 66 m3/s
Energy dissipation - Inexistent
Location - Thalweg
Type - Through the dam
Maximum discharge -  10 m3/s
Upstream control  - Gate
Downstream control  - Valve
Energy dissipation - Hollow jet and scour holes
POWER PLANT
Type - Outdoor
Number of installed units - 1
Type of units - Pelton
Power installed capacity - 10 MW
Mean annual energy output - 28 GWh


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