PORCHES DAM |
|
| PURPOSE - Irrigation | |
| LOCATION | GENERAL FEATURES |
| District -
Setúbal Municipality - Alcácer do Sal Site - Vale do Guiso River Basin - Sado River - Barranco do Taralhão |
Promoting entity
- Sociedade Agrícola da Herdade de Porches, Lda. Owner - Sociedade Agrícola da Herdade de Porches, Lda. Engineering by - Eteje Lda. Construction by - SODOFER Lda. Year of completion - 1991 |
| HYDROLOGY | RESERVOIR |
| River basin area
- 9,87 km2 Flood runoff - 26,2 m3/s Return period - 100 years |
Gross capacity -
738 x 1 000m3 Effective storage - 700 x 1 000m3 Normal water level (NWL) - 31 m Maximum flood level (MFL) - 31,6 m |
| DAM | |
| Earthfill -
Zoned embankment Height above foundation - Height above streambed - 20,6 m Crest elevation - 32,6 m Crest length - 207 m Crest width - 6 m Volume of dam body - 110 x 1 000 m3 |
|
| SPILLWAY | BOTTOM OUTLET |
| Location - Saddle
at left embankment Control type - Uncontrolled Spillway type - Chute spillway Sill elevation - 31 m Sill length - 20 m Maximum discharge - 19,1 m3/s Energy dissipation - Hydraulic jump |
Type -
Conduit under the embankment Section - d 600 mm Upstream control - Sluice gate Downstream control - Gate valve Energy dissipation - Impact basin |