VENDA NOVA DAM |
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| PURPOSE - Hydroelectric | |
| LOCATION | DADOS GERAIS |
| District -
Vila Real Municipality - Montalegre Site - Venda Nova River Basin - Cávado River - Rabagão river |
Promoting entity
- CPPE, Cª. Portuguesa de Produção de Electricidade, SA Owner (RSB) - CPPE Engineering by - A. COYNE Construction by - SOCEL-CAP Project year - 1948 Year of completion - 1951 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 356 km2 Mean annual rainfall - 1 900 mm Flood runoff - 1 500 m3/s |
Reservoir area - 4
000 x 1 000m2 Gross capacity - 94 500 x 1 000m3 Effective storage - 93 000 x 1 000m3 Normal water level (NWL) - 700 m Minimum operating level - 645 m |
| DAM | |
| Concrete - Arch
dam Height above foundation - 97 m Crest elevation - 701 m Crest length - 230 m Foundation - Granite Volume of dam body - 228 x 1000 m3 |
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| SPILLWAY | BOTTOM OUTLET |
| Location - Dam
body Control type - Controlled Spillway type - Over the dam Sill elevation - 692 m Sill length - 22 m Number of gates - 2 radial gates Maximum discharge - 1 100 m3/s Energy dissipation - Flip bucket |
Location -
Thalweg Type - Through the dam Section - D 2,6 m Maximum discharge - 135 m3/s Upstream control - Yes Downstream control - Hollow jet valve Energy dissipation - Hollow jet |
| POWER PLANT | |
| Type - Reservoir Number of installed units - 3 Type of units - Pelton Power installed capacity - 144 MW Mean annual energy output - 389 GWh |
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