MEIMOA DAM |
|
| PURPOSE - Irrigation / Water supply | |
| LOCATION | GENERAL FEATURES |
| District -
Castelo Branco Municipality - Penamacor Site - Cabeços Brancos River Basin - Tejo River - Meimoa river |
Promoting entity
- INAG Owner - INAG / Associação de Beneficiários da Cova da Beira Engineering by - COBA Construction by - Moniz da Maia, Serra & Fortunato Project year - 1978 Year of completion - 1985 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 61 km2 Mean annual rainfall - 1066 mm Mean annual runoff - 28400 x 1000 m3 Flood runoff - 228 m3/s Return period - 1000 years |
Reservoir area
- 2 220 x 1000m2 Gross capacity - 40 900 x 1000m3 Effective storage - 27 000 x 1000m3 Dead storage - 13 900 x 1000m3 Normal water level (NWL) - 568,5 m Maximum flood level (MFL) - 568,99 m Minimum operating level - 547 m |
| DAM | |
| Earthfill - Zoned
embankment Height above foundation - 56 m Height above streambed - 50 m Crest elevation - 571,5 m Crest length - 656 m Crest width - 10 m Foundation - Schist and greywacke Volume of dam body - 2500 x 1000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Right
bank Control type - Controlled Spillway type - Chute spillway Sill elevation - 566 m Sill length - 2 x 6 m Number of gates - 2 radial gates Maximum discharge - 124 m3/s Energy dissipation - Hydraulic jump |
Location - Left
bank Type - Conduit under the embankment Section - d 1000 mm Maximum discharge - 11 m3/s Upstream control - Fixed roller gate Downstream control - Howell-Bunger valve Energy dissipation - Hollow jet and hydraulic jump basin |