MAGOS DAM |
|
PURPOSE - Irrigation | |
LOCATION | GENERAL FEATURES |
District -
Santarém Municipality - Salvaterra de Magos Site - Janho Novo River Basin - Tejo River - Magos river |
Promoting entity
- INAG Owner - Associação de Regantes e Beneficiários do Vale do Sorraia Engineering by - JAOHA Construction by - JAOHA Project year - 1933 Year of completion - 1938 |
HYDROLOGY | RESERVOIR |
River basin area
- 104,8 km2 Mean annual rainfall - 500 mm Mean annual runoff - 5100 x 1000 m3 Flood runoff - 110 m3/s |
Reservoir area -
900 x 1000m2 Gross capacity - 3384 x 1000m3 Effective storage - 3000 x 1000m3 Dead storage - 384 x 1000m3 Normal water level (NWL) - 19,02 m Maximum flood level (MFL) - 21,5 m Minimum operating level - 8,2 m |
DAM | |
Earthfill - Homogeneous
embankment Height above foundation - 17 m Height above streambed - 15 m Crest elevation - 23 m Crest length - 400 m Crest width - 5 m Foundation - Clay, sand and gravel Volume of dam body - 73 x 1000 m3 |
|
SPILLWAY | BOTTOM OUTLET |
Location - Left
bank Control type - Controlled Spillway type - Chute spillway Sill elevation - 16,18 m Sill length - 17,9 m Number of gates - 9 wooden sluice gates Maximum discharge - 110 m3/s Energy dissipation - Inexistent |
Location -
Thalweg Type - Conduit under the embankment Section - d 1,0 m Maximum discharge - 1 m3/s Upstream control - 2 sluice gates Energy dissipation - Inexistent |