ABRILONGO DAM |
|
| MAIN PURPOSE - Irrigation | |
| LOCATION | GENERAL FEATURES |
| District -
Portalegre Municipality - Campo Maior River Basin - Guadiana River - Abrilongo river |
Promoting entity
- IHERA Construction by - EDIFER Year of completion - 2000 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 124 km2 Mean annual rainfall - 720 mm Flood runoff - 610 m3/s Return period - 1000 years |
Reservoir area -
2950 x 1000 m2 Gross capacity - 19900 x 1000 m3 Effective storage - 18900 x 1000 m3 Normal water level (NWL) - 252 m Maximum flood level (MFL) - 253,7 m Minimum operating level - 241,2 m |
| DAM FEATURES | |
| Earthfill - Zoned
embankment Height above foundation - 29 m Height above streambed - 27 m Crest elevation - 254,7 m Crest length - 1063 m Volume of dam body - 494,9 x 1000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Left
bank Control type - Uncontrolled Spillway type - Chute spillway Elevation of sill crest - 252 m Sill length - 85 m Maximum discharge capacity - 420 m3/s Energy dissipation - Hydraulic jump |
Type -
Conduit under the embankment Section - d 800 mm Maximum discharge - 5 m3/s Upstream control - Fixed roller gate Downstream control - Sluice gate Energy dissipation - Impact basin |