PEGO DO ALTAR DAM |
|
PURPOSE - Irrigation / Hydroelectric | |
LOCATION | GENERAL FEATURES |
District -
Setúbal Municipality - Alcácer do Sal Site - Pego do Altar / Santa Susana River Basin - Sado River - Alcáçovas river |
Promoting entity
- Associação de Benef. do Vale do Sado Owner - Ass. Benef. do Vale do Sado Engineering by - JAOHA Construction by - R. Rosa, SPEL, Bastien & Costa, SETH, JAOHA Project year - 1934 Year of completion - 1949 |
HYDROLOGY | RESERVOIR |
River basin area
- 743 km2 Mean annual rainfall - 550 mm |
Reservoir area-
6 550 x 1 000m2 Gross capacity - 94 000 x 1 000m3 Effective storage - 93 600 x 1 000m3 Dead storage - 400 x 1 000m3 Normal water level (NWL) - 52,26 m Maximum flood level (MFL) - 52,26 m Minimum operating level - 15 m |
DAM | |
Rockfill - With
upstream facing Height above foundation - 43,5 m Height above streambed - 63 m Crest elevation - 56 m Crest length - 192 m Crest width - 5 m Foundation - Clayey schist Volume of dam body - 371 x 1000 m3 |
|
SPILLWAY | BOTTOM OUTLET |
Location -
Right bank Control type - Controlled Spillway type - Shaft spillway Sill elevation - 47,56 m Sill length - 4 x 21,25 m Number of gates - 4 radial gates Maximum discharge - 1 200 m3/s Energy dissipation - Inexistent |
Location -
Right bank Type - Rock tunnel Section - 2 x 1,2 x 1,5 m2 Maximum discharge - 80 m3/s Upstream control - 2 sluice gates Downstream control - 2 sluice gates Energy dissipation - Inexistent |
POWER PLANT | |
Type - Dam
toe Mean annual energy output - 5,2 GWh |