PENHA GARCIA DAM |
|
| PURPOSE - Water supply / Irrigation | |
| LOCATION | GENERAL FEATURES |
| District -
Castelo Branco Municipality - Idanha-a-Nova Site - Penha Garcia River Basin - Tejo River - Ponsul river |
Promoting entity
- INAG Owner - C. M. Idanha-a-Nova Engineering by - DGRAH Construction by - CONDURIL Project year - 1975 Year of completion - 1979 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 15,2 km2 Mean annual rainfall - 824 mm Mean annual runoff - 4 164 x 1 000 m3 Flood runoff - 110 m3/s Return period - 500 years |
Reservoir area
- 204 x 1 000m2 Gross capacity - 1 070 x 1 000m3 Effective storage - 1 001 x 1 000m3 Dead storage - 68 x 1 000m3 Normal water level (NWL) - 516 m Maximum flood level (MFL) - 517,65 m Minimum operating level - 506 m |
| DAM | |
| Concrete -
Gravity Height above foundation - 25 m Height above streambed - 21,5 m Crest elevation - 519 m Crest length - 112 m Crest width - 2 m Foundation - Quartzite Volume of dam body - 14 x 1000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Center Control type - Uncontrolled Spillway type - Over the dam Sill elevation - 516 m Sill length - 2 x 5,0 m Maximum discharge - 47 m3/s Energy dissipation - Flip bucket |
Location -
Thalweg Type - Through the dam Section - d 400 mm Maximum discharge - 1,7 m3/s Upstream control - Sluice gate Downstream control - Hollow jet valve Energy dissipation - Hollow jet and scour holes |