VERMIOSA DAM

PURPOSE - Irrigation
LOCATION GENERAL FEATURES
District  - Guarda
Municipality - Figueira de Castelo Rodrigo
River Basin - Douro
River - Devesa river
Promoting entity - Direcção Regional de Agricultura da Beira Interior
Owner (RSB) - Junta de Agricultores da Vermiosa
Engineering by - Hidrotécnica Portuguesa
Construction by- Agrupamento do Sabugal
Project year - 1993
Year of completion - 1999
HYDROLOGY RESERVOIR
River basin area - 11,9 km2
Mean annual rainfall - 542,7 mm
Mean annual runoff - 997 x 1 000 m3
Flood runoff  - 74 m3/s
Return period  - 
1 000 years
Reservoir area - 489 x 1 000 m2
Gross capacity - 2 250 x 1 000 m3
Effective storage - 2 200 x 1 000 m3
Dead storage - 50 x 1 000 m3
Normal water level (NWL) - 684,8 m
Maximum flood level (MFL) - 686,3 m
Minimum operating level - 674,2 m
DAM
Earthfill - Zoned embankment
Height above foundation -
 18 m
height above streambed - 15,5 m
Crest elevation - 688 m
Crest length - 288 m
Crest width - 6 m
Volume of dam body
95 x 1 000 m3
SPILLWAY BOTTOM OUTLET
Location - Left bank
Control type - Uncontrolled
Spillway type - Chute spillway
Sill elevation - 684,4 m
Sill length -
20,35 m
Maximum discharge - 90 m3/s
Energy dissipation - Hydraulic jump
Type - Conduit under the embankment
Section - d 800 mm
Maximum discharge - 1,74 m3/s
Upstream control - Sluice gate
Downstream control - Valve
Energy dissipation - Impact basin


ARROWA.GIF (181 bytes)            homeicona.gif (359 bytes)