PÓVOA DAM |
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| PURPOSE - Hydroelectric | |
| LOCATION | GENERAL FEATURES |
| District -
Portalegre Municipality - Castelo de Vide Site - Póvoa e Meadas River Basin - Tejo River - Nisa river |
Promoting entity
- HIDROTEJO, Hidroeléctrica do Tejo, SA Owner - HIDROTEJO Engineering by - Hidro Eléctrica Alto Alentejo Construction by - Hidro Eléctrica Alto Alentejo Project year - 1925 Year of completion - 1928 |
| HYDROLOGY | RESERVOIR |
| Flood runoff - 250 m3/s | Reservoir area -
2 360 x 1 000m2 Gross capacity - 22 000 x 1 000m3 Effective storage - 18 800 x 1 000m3 Normal water level (NWL) - 312 m Maximum flood level (MFL) - 313 m |
| DAM | |
| Concrete - Gravity Height above foundation - 32 m Height above streambed - 28,5 m Crest elevation - 313,5 m Crest length - 400 m Foundation - Granite Volume of dam body - 32 x 1 000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Left
bank Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 309,85 m Maximum discharge - 110 m3/s |
Location -
Thalweg Type - Through the dam Upstream control - Gate Downstream control - Hollow jet Energy dissipation - Hollow jet and scour holes |
| POWER PLANT | |
| Type - Outdoor Number of installed units - 2 Type of units - Francis Power installed capacity - 0,74 MW Mean annual energy output - 1,6 GWh |
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