CORGAS DAM |
|
PURPOSE - Water supply | |
LOCATION | GENERAL FEATURES |
District -
Castelo Branco Municipality - Proença-a-Nova River Basin - Tejo River - Isna river |
Promoting entity
- INAG Owner (RSB) - C M Proença-a-Nova Engineering by - APAGEL Construction by - Rigeral. Somague Year of completion - 1991 |
HYDROLOGY | RESERVOIR |
River basin area
- 25,3 km2 Flood runoff - 140 m3/s Return period - 1000 years |
Reservoir area
- 110 x 1000m2 Gross capacity - 660 x 1000m3 Effective storage - 534 x 1000m3 Normal water level (NWL) - 543 m Maximum flood level - 543 m |
DAM | |
Concrete - Gravity
dam Height above foundation - 30 m Height above streambed - 25,5 m Crest elevation - 545,5 m Crest length - 92 m Volume of dam body - 13,039 x 1000 m3 |
|
SPILLWAY | BOTTOM OUTLET |
Location - Center Control type - Controlled Spillway type - Over the dam Sill elevation - 539,5 m Sill length - 11,5 m Number of gates - 2 radial gates Maximum discharge - 140 m3/s Energy dissipation - Hydraulic jump |
Location - Right
bank Type - Through the dam Section - d 1,0 m Maximum discharge - 11,9 m3/s Upstream control - Sluice gate Downstream control - Hollow jet valve Energy dissipation - Hollow jet and scour holes |