BURGA DAM

PURPOSE - Irrigation
LOCATION GENERAL FEATURES
District - Bragança
Concelho - Alfândega da Fé
Municipality - Vilares de Vilariça
Municipality - Douro
River - Burga river
Promoting entity - INAG
Owner (RSB) - DRATM
Engineering by - Hidroprojecto
Construction by - José Bento Pedroso & Filhos
Project year - 1972
Year of completion - 1978
HYDROLOGY RESERVOIR
River basin area - 16 km2
Mean annual rainfall - 700 mm
Mean annual runoff - 2400 x 1000 m3
Flood runoff - 190 m3/s
Return period - 500 years
Reservoir area - 161 x 1000m2
Gross capacity - 1539 x 1000m3
Effective storage - 1383 x 1000m3
Normal water level (NWL) - 329 m
Maximum flood level (MFL) - 330,5 m
Minimum operating level - 307 m
DAM
Earthfill - Homogeneous embankment
Height above foundation - 35 m
Height above streambed - 28 m
Crest elevation - 331,5 m
Crest length - 353 m
Crest width - 8 m
Foundation - Schist
Volume of dam body - 436 x 1000 m3
SPILLWAY BOTTOM OUTLET
Location - Right bank
Control type - Uncontrolled
Spillway type  - Chute spillway
Sill elevation - 329 m
Sill length - 32 m
Maximum discharge - 130 m3/s
Energy dissipation - Hydraulic jump
Location - Left bank
Type - Conduit under the embankment
Section - d 1500 mm
Maximum discharge - 13,4 m3/s
Upstream control - Sluice gate
Downstream control - Radial gate
Energy dissipation - Flip bucket


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