SERRA SERRADA DAM |
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| PURPOSE - Water supply / Hydroelectric / Navigation | |
| LOCATION | GENERAL FEATURES |
| District -
Bragança Municipality - Bragança Site - Serra Serrada River Basin - Douro River - Andorinhas river |
Promoting entity
- C. M. Bragança Owner - C. M. Bragança Engineering by - Hidrotécnica Portuguesa Construction by - Somague Project year - 1986 Year of completion - 1989 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 6,7 km2 Mean annual rainfall - 1 400 mm Mean annual runoff - 7 170 x 1 000 m3 Flood runoff - 46 m3/s Return period - 500 years |
Reservoir area - 264,7
x 1 000 m2 Gross capacity - 1 680 x 1 000 m3 Effective storage - 1 500 x 1 000 m3 Dead storage - 180 x 1 000 m3 Normal water level (NWL) - 1 252 m Maximum flood level (MFL) - 1 252,5 m Minimum operating level - 1 241,5 m |
| DAM | |
| Concrete - Gravity Height above foundation - 25 m height above streambed - 20 m Crest elevation - 1254 m Crest length - 170 m Crest width - 2 m Foundation - Granite Volume of dam body - 14,6 x 1 000 m3 |
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| SPILLWAY | BOTTOM OUTLET |
| Location - Center Control type - Uncontrolled Spillway type - Over the dam Sill elevation - 1 252 m Sill length - 40 m Maximum discharge - 46 m3/s Energy dissipation - Flip bucket |
Location -
Thalweg Type - Through the dam Section - d 600 mm Maximum discharge - 3,7 m3/s Downstream control - Válvulas de cunha Energy dissipation - Flip bucket |
| POWER PLANT | |
| Number of
installed units - 2 Type of units - Pelton Power installed capacity - 3,4 MW Mean annual energy output - 8,71 GWh |
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