ZAMBUJO DAM |
|
| PURPOSE - Water supply | |
| LOCATION | GENERAL FEATURES |
| District -
Portalegre Municipality - Alter do Chão Site - Marinheira River Basin- Tejo River - Zambujo river |
Promoting entity
- C. M. Alter do Chão Owner (RSB) - C. M. Alter do Chão Engineering by - J. M. Reboredo Pinto Leite Construction by - C M Alter do Chão / Mendes, Transportes e Construções, S.A Project year - 1989 Year of completion - 1994 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 13,6 km2 Mean annual rainfall - 629,3 mm |
Reservoir area -
370 x 1 000 m2 Gross capacity - 1 250 x 1 000 m3 Effective storage - 1 229 x 1 000 m3 Dead storage - 21 x 1 000 m3 Normal water level (NWL) - 197,2 m Maximum flood level (MFL) - 197,92 m Minimum operating level - 190 m |
| DAM | |
| Earthfill -
Homogeneous embankment Height above foundation - 24 m Height above streambed - 12 m Crest elevation - 199 m Crest length - 209,5 m Crest width - 4 m Volume of dam body - 73,2 x 1 000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Left
bank Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 197,2 m Sill length - 10 m Maximum discharge - 13,25 m3/s Energy dissipation - Hydraulic jump |
Type -
Conduit under the embankment Section - d 700 mm Maximum discharge - 1,75 m3/s Upstream control - Sluice gate |