CURALHA DAM

PURPOSE - Irrigation
LOCATION GENERAL FEATURES
District - Vila Real
Municipality - Chaves
River Basin - Douro
Promoting entity - Direcção Regional de Agricultura de Trás-os-Montes
Owner (RSB) -
Engineering by - Consórcio Hidroprojecto / AGRAR
Construction by - Teixeira Duarte
Project year - 1985
HYDROLOGY RESERVOIR
River basin area - 5 km2
Flood runoff - 500 m3/s
Return period - 100 years

Reservoir area - 177 x 1000m2
Gross capacity - 792 x 1000m3
Effective storage - 740 x 1000m3
Dead storage - 52 x 1000m3
Normal water level (NWL) - 405 m
Maximum flood level (MFL) - 405,4 m
DAM
Earthfill - Zoned embankment
Height above foundation - 16 m
Height above streambed - 12 m
Crest elevation - 406,5 m
Crest length - 210 m
SPILLWAY BOTTOM OUTLET
Location - Saddle at left embankment
Control type - Uncontrolled
Spillway type - Chute spillway
Sill elevation - 405 m
Sill length - 22,5 m
Maximum discharge - 15 m3/s
Location - Right bank
Type - Conduit under the embankment
Section - d 400 mm
Maximum discharge - 0,9 m3/s
Upstream control - Sluice gate
Downstream control - Butterfly valve
Energy dissipation -
: Impact basin


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