| ÁGUA INDUSTRIAL DAM (Pirites Alentejanas) | |
| MAIN PURPOSE - Industrial use | |
| LOCATION | GENERAL FEATURES |
| District -
Beja Municipality - Aljustrel Site - Mina dos Algares River Basin - Sado River - Água Forte River |
Promoting entity
- Pirites Alentejanas, S.A Owner (RSB) - Pirites Alentejanas, S.A Engineering by - COBA Construction by - Teixeira Duarte Project year - 1988 Year of completion - 1990 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 5,6 km2 Flood runoff - 45,7 m3/s Return period - 1000 years |
Reservoir area -
236 x 1000m2 Gross capacity - 864 x 1000m3 Normal water level (NWL) - 170,9 m Maximum flood level (MFL) - 171,4 m |
| DAM FEATURES | |
| Earthfill - Zoned
embankment Height above foundation - 16,5 m Height above streambed - 15 m Crest elevation - 172,5 m Crest length - 295 m Crest width - 6 m Foundation - Metavulcanites Volume of dam body - 30,3 x 1000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Right
bank Control type - Uncontrolled Spillway type - Chute spillway Elevation of sill crest - 170,9 m Sill length - 10 m Maximum discharge capacity - 6 m3/s |
Location - Thalweg Type - Conduit under the embankment Section - d 500 mm Upstream control - Válvula de cunha Energy dissipation - Impact basin |