CERRO DO LOBO DAM |
|
PURPOSE - Tailings dam | |
LOCATION | GENERAL FEATURES |
District -
Beja Municipality - Castro Verde Site - Minas de Neves Corvo River Basin - Guadiana River - Barranco das Lages |
Promoting entity
- Somincor - Sociedade Mineira de Neves Corvo, S.A Owner (RSB) - Somincor Engineering by - Hidroprojecto Construction by - Moniz da Maia, Serra e Fortunato Project year - 1993 Year of completion - 1993 |
HYDROLOGY | RESERVOIR |
River basin area
- 4,1 km2 Mean annual rainfall - 426,5 mm Flood runoff - 15,85 m3/s Return period - 10000 years |
Reservoir area -
1500 x 1000m2 Gross capacity - 15500 x 1000m3 Normal water level (NWL) - 250,5 m Maximum flood level (MFL) - 250,84 m |
DAM | |
Earthfill - Zoned
embankment Other - Tailings dam Height above foundation - 36,5 m Height above foundation - 36 m Crest elevation - 252 m Crest length - 1010 m Crest width - 8 m Foundation - Greywacke and schist Volume of dam body - 873 x 1000 m3 |
|
SPILLWAY | BOTTOM OUTLET |
Location - Saddle
at left embankment Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 250,5 m Sill length - 25 m Maximum discharge - 8,42 m3/s Energy dissipation - Steps |
Location - Right
bank Type - Siphon Section - d 400 mm Maximum discharge - 0,69 m3/s Downstream control - Rotary valve DN 350 Energy dissipation - Inexistent |