MICHÕES DAM |
|
PURPOSE - Fire | |
LOCATION | GENERAL FEATURES |
District -
Santarém Municipality - Benavente Site - Campo de Tiro de Alcochete River Basin - Tejo River - Vale de Michões river |
Promoting entity
- Força Aérea / Grupo de Engenharia de Aeródromos ( GEAFA) Owner - Força Aérea / G. E.Aer. (GEAFA) Engineering by - Engº Seco e Pinto Project year - 1995 Year of completion - 1996 |
HYDROLOGY | RESERVOIR |
River basin area
- 15,3 km2 Mean annual rainfall - 630 mm Mean annual runoff - 1741 x 1000 m3 Flood runoff - 49 m3/s Return period - 1000 years |
Reservoir area
- 960 x
1000m2 Gross capacity - 1920 x 1000m3 Effective storage - 1770 x 1000m3 Dead storage - 150 x 1000m3 Normal water level (NWL) - 27 m Maximum flood level (MFL) - 27,55 m Minimum operating level - 23 m |
DAM | |
Earthfill - Zoned
embankment Height above foundation - 15 m Height above streambed - 10 m Crest elevation - 29 m Crest length - 325 m Crest width - 6 m Foundation - Sand and claystone Volume of dam body - 38,129 x 1000 m3 |
|
SPILLWAY | BOTTOM OUTLET |
Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 25 m Sill length - 7 m Maximum discharge - 6,1 m3/s Energy dissipation - Hydraulic jump III USBR |
Location - Thalweg Type - Conduit under the embankment Section - d 0,50m Maximum discharge - 1,2 m3/s Upstream control - Sluice gate Downstream control - Butterfly valve Energy dissipation - Impact basin |