SANTA CLARA DAM |
|
PURPOSE - Irigation
/ Water supply / Hydroelectric / / Flood control |
|
LOCATION | GENERAL FEATURES |
District -
Beja Municipality - Odemira Site - Santa Clara-a-Velha River Basin - Mira River - Mira river |
Promoting entity
- INAG Owner - Assoc. de Beneficiários do Mira Engineering by - DGSH Construction by - Engº A. Supico Project year - 1960 Year of completion - 1968 |
HYDROLOGY | RESERVOIR |
River basin area
- 520 km2 Mean annual rainfall - 618 mm Mean annual runoff - 90 600 x 1 000 m3 Flood runoff - 2 000 m3/s Return period- 1 000 years |
Reservoir area
- 19 860 x 1 000 m2 Gross capacity - 485 000 x 1 000 m3 Effective storage - 240 300 x 1 000 m3 Dead storage - 244 700 x 1 000 m3 Normal water level (NWL)- 130 m Maximum flood level (MFL) - 132 m Minimum operating level - 114,7 m |
DAM | |
Earthfill -
Zoned embankment Height above foundation - 87 m Height above streambed - 83 m Crest elevation - 135 m Crest length - 428 m Crest width - 10 m Foundation - Porphiry, schist and greywacke Volume of dam body - 3 966 x 1 000 m3 |
|
SPILLWAY | BOTTOM OUTLE |
Location - Left
bank Control type - Uncontrolled Spillway type - Shaft spillway Sill elevation - 130 m Sill length - 28,3 m Maximum discharge - 208 m3/s Energy dissipation - Hydraulic jump |
Location -
Left bank Type - Rock tunnel Section - d 1,5 m Maximum discharge - 124 m3/s Upstream control - Catterpiller gate Downstream control - 2 sluice gates Energy dissipation - Hydraulic jump |
POWER PLANT | |
Type - Far
from the dam Mean annual energy output - 1,9 GWh |