VÁRZEA DE CALDE DAM |
|
| PURPOSE - Irrigation | |
| LOCATION | GENERAL FEATURES |
| District -
Viseu Municipality - Viseu Site- Várzea de Calde River Basin - Vouga River - Várzea river |
Promoting entity
- Direcçăo Regional de Agricultura da Beira Litoral Owner - Junta de Agricultores do Regadio de Várzea de Calde Engineering by - Hidrotécnica Construction by - Sociedade de Empreitadas Adriano Project year - 1995 Year of completion - 2000 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 3,1 km2 Mean annual rainfall - 1 430 mm Flood runoff - 24 m3/s Return period - 1 000 years |
Reservoir area - 66
x 1 000 m2 Gross capacity - 563,8 x 1 000 m3 Effective storage - 556 x 1 000 m3 Dead storage - 7,8 x 1 000 m3 Normal water level (NWL) - 547,2 m Maximum flood level (MFL) - 547,8 m Minimum operating level - 527 m |
| DAM | |
| Earthfill -
Zoned embankment Height above foundation - 33,5 m Height above streambed - 31,5 m Crest elevation - 549 m Crest length - 131 m Crest width - 6 m Volume of dam body - 165 x 1 000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Left
bank Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 547,2 m Sill length - 28 m Maximum discharge - 21 m3/s Energy dissipation - Flip bucket |
Location -
Right bank Type - Conduit under the embankment Section - d 1,0 m Maximum discharge - 2,3 m3/s Upstream control - Fixed roller gate Downstream control - Hollow jet valve Energy dissipation - Hollow jet and scour holes |