COVÃO DO FERRO DAM

PURPOSE - Hydroelectric
LOCATION GENERAL FEATURES
District - Castelo Branco
Municipality - Covilhã
Site - Covão da Nave
River Basin - Tejo
River - Alforfa river
Promoting entity - Hidroeléctrica da Ribeira de Alforfa, S.A
Owner (RSB) - Hidroeléctrica da Ribeira de Alforfa, S.A
Engineering by - Sociedade Ind. Penteação e Fiação de Lãs
Construction by - Sociedade Ind. Penteação e Fiação de Lãs
Project year - 1935
Year of completion - 1956
HYDROLOGY RESERVOIR
River basin area - 1,92 km2
Mean annual rainfall - 2500 mm
Mean annual runoff - 2900 x 1000 m3
Reservoir area - 65 x 1000m2
Gross capacity - 1100 x 1000m3
Effective storage - 870 x 1000m3
Normal water level (NWL) - 1573,4 m
Maximum flood level (MFL) - 1575,7 m
Minimum operating level - 1545 m
DAM
Type - Masonry gravity dam
Height above foundation - 32,5 m
Height above streambed - 30 m
Crest elevation - 1575,7 m
Crest length - 400 m
Crest width - 3 m
Foundation - Granite
Volume of dam body - 111 x 1000 m3
SPILLWAY BOTTOM OUTLET
Location - Saddle at left embankment
Control type - Uncontrolled
Spillway type - Over the dam
Sill elevation - 1573,4 m
Sill length - 5,25 m
Maximum discharge - 30 m3/s
Energy dissipation - Inexistent
Location - Right bank
Type - Through the dam
Section -
d 600 mm
Upstream control -
Sluice gate 1x1 m2
Downstream control -
Válvula de cunha
Energy dissipation -
Inexistent
POWER PLANT
Type - Far away from the dam
Type of units - Pelton turbine
Power installed capacity - 1,2 MW
Power production - 2,4 GWh


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