CORTE BRIQUE DAM

PURPOSE - Irrigation
LOCATION GENERAL FEATURES
District - Beja
Municipality - Odemira
Site - Corte Brique
River Basin - Mira
River - Corte Brique river
Promoting entity - Associação de Beneficiários do Mira
Owner (RSB) - Associação de Beneficiários do Mira
Engineering by - ETEGE
Construction by - Construções Técnicas, S.A
Project year - 1986
Year of completion - 1993
HYDROLOGY RESERVOIR
River basin area - 14,42 km2
Mean annual rainfall - 676,7 mm
Mean annual runoff - 2700 x 1000 m3
Flood runoff - 83,1 m3/s
Return period - 500 years
Reservoir area - 178 x 1000m2
Gross capacity - 1636 x 1000m3
Effective storage - 1464 x 1000m3
Dead storage - 108 x 1000m3
Normal water level (NWL) - 134,62 m
Maximum flood level (MFL) - 135,8 m
Minimum operating level - 115 m
DAM
Earthfill - Homogeneous embankment
Height above foundation - 28 m
Crest elevation - 137 m
Crest length - 117 m
Crest width - 8 m
Foundation - Schist and greywacke
Volume of dam body - 136 x 1000 m3
SPILLWAY BOTTOM OUTLET
Location - Left bank
Control type - Uncontrolled
Spillway type - Chute spillway
Sill elevation - 134,6 m
Sill length - 22 m
Maximum discharge - 62,9 m3/s
Energy dissipation - Hydraulic jump
Location - Right bank
Type - Conduit under the embankment
Section - d 600 mm
Maximum discharge - 2,83 m3/s
Upstream control - Sluice gate
Downstream control - Butterfly valve
Energy dissipation - Impact basin


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