AÇAFAL DAM |
|
| PURPOSE - Irrigation | |
| LOCATION | GENERAL FEATURES |
| District - Castelo
Branco Municipality - Vila Velha do Ródão Site - Tostão River Basin - Tejo River - Açafal river |
Promoting entity
- Direcção Regional de Agricultura da Beira Interior (DRABI) Owner (RSB) - Direcção Regional de Agricultura da Beira Interior (DRABI) Engineering by - HIDROPROJECTO Construction by - Soares da Costa SA e António Joaquim Maurício Lda Project year - 1997 Year of completion - 2004 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 46,5 km2 Flood runoff - 192 m3/s Return period - 1000 years |
Reservoir area -
200 x 1000 m2 Gross capacity - 1790 x 1000 m3 Effective storage - 1790 x 1000 m3 Normal water level (NWL) - 112,6 m Maximum flood level (MFL) - 114,75 m |
| DAM | |
| Rockfill - Zoned
embankment Height above foundation - 29 m Height above streambed - 26 m Crest elevation - 254,7116 m Crest length - 121 m Crest width - 7,5 m Foundation - Schist Volume of dam body - 138 x 1000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Left
bank Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 112,6 m Sill length - 47,3 m Maximum discharge - 188 m3/s Energy dissipation - Skijump |
Location - Right
bank Type - Conduit under the embankment Section - d 700 mm Maximum discharge - 1,5 m3/s Upstream control - Sluice gate Downstream control - Hollow jet valve d= 350 mm |