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English to Bulgarian translations [PRO] Environment & Ecology / dams and reservoirs
English term or phrase:upstream watershed
The Topolnitza reservoir was constructed in 1963. It gathers waters from Topolnitza and Mativir rivers in the mountainous upper part (North western) of Maritza basin about 60 km upstream from Pazardjik.
The upstream watershed or drained area is about 1381 sqkm
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These dams with large retention capacity (above 100 Mm3) receive direct inflow from rivers of Maritza and Tundja basin with significant upstream watershed (above 500 sqkm).