REJEITADOS DAM (PIRITES ALENTEJANAS) |
|
PURPOSE - Tailings dam | |
LOCATION | GENERAL FEATURES |
District -
Beja Municipality - Aljustrel Site - Monte do Morgado River Basin - Sado River - Barranco do Morgado |
Promoting entity
- Pirites Alentejanas, S.A Owner - Pirites Alentejanas, S.A Engineering by - Hidroprojecto Construction by - Moniz da Maia, Serra e Fortunato Project year - 1990 |
HYDROLOGY | RESERVOIR |
River basin area
- 0,69 km2 Mean annual rainfall - 552 mm Flood runoff - 1,87 m3/s Return period - 1 000 years |
Reservoir area
- 490 x 1 000m2 Gross capacity - 3 460 x 1 000m3 Normal water level (NWL) - 155,75 m Maximum flood level (MFL) - 156 m |
DAM | |
Earthfill - Zoned
embankment Height above foundation - 32 m Height above streambed - 30 m Crest elevation - 157 m Crest length - 500 m Crest width - 9 m Foundation - Schist and greywacke Volume of dam body - 289 x 1 000 m3 |
|
SPILLWAY | BOTTOM OUTLET |
Location - Saddle
at left embankment Control type - uncontrolled Spillway type - Chute spillway Sill elevation - 155,75 m Sill length - 5 m Maximum discharge - 0,9 m3/s Energy dissipation - Steps |
Type -
Inexistent |