TEJA DAM

PURPOSE - Water supply
LOCATION GENERAL FEATURES
District  - Guarda
Municipality - Trancoso
Site - Terrenho
River Basin - Douro
River - Teja river
Promoting entity - C M Trancoso
Owner - C M Trancoso
Engineering by - Gabinete de Estudos Técnicos
Construction by - TRAPSA
Project year - 1990
Year of completion - 1995
HYDROLOGY RESERVOIR
River basin area - 35,5 km2
Mean annual rainfall - 860,8 mm
Mean annual runoff - 9 970 x 1 000 m3
Flood runoff  - 121 m3/s
Return period  - 
100 years
Gross capacity - 2 805 x 1 000 m3
Effective storage - 2 743 x 1 000 m3
Normal water level (NWL) - 689,5 m
Maximum flood level (MFL) - 690,74 m
Minimum operating level - 680 m
DAM
Earthfill - Zoned embankment
Height above streambed - 
16 m
Crest elevation - 692 m
Crest length - 177 m
Crest width - 6 m
Volume of dam body
70 x 1 000 m3
SPILLWAY BOTTOM OUTLET
Location - Left bank
Control type - Uncontrolled
Spillway type - Chute spillway
Sill elevation - 689,5 m
Energy dissipation -
Flip bucket
Location - Right bank
Type - Conduit under the embankment
Section - d 600 mm
Maximum discharge - 1,04 m3/s
Upstream control - Sluice gate
Downstream control  - Válvula de cunha
Energy dissipation - Impact basin


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