Suchomasty Reservoir, Water reservoir in Králův Dvůr, Czech Republic

The Suchomasty Reservoir lies on the Suchomastý stream near the Litohlavy settlement in the Český kras karst, about 1.5 km above the stream's mouth into the Litavka. Its straight earthfill dam, 85 m long and up to 13.5 m high, closes the northern edge; the reservoir holds 0.484 million m³ over 9.32 ha. A side spillway with a concrete chute sits at the dam's right abutment.

Construction of the Suchomasty Reservoir began in 1955 and was completed in 1960. It was built on the Suchomastský potok to supply industrial cooling water for the Králův Dvůr ironworks and drinking water for nearby towns. After the 2002 floods, the dam was rebuilt and reinforced between 2013 and 2014, and sediment was dredged from the bed.

The reservoir is managed by the Vltava river basin authority, and the fishing association of the Králův Dvůr ironworks stocks it mainly with cyprinid fish. A green-marked hiking trail runs along its eastern and southern edges, from Beroun-Jarov via Havlíčkův mlýn to Koukolova hora or via Kotýz to the Koněprusy Caves.

Swimming is banned along the entire perimeter of the reservoir, so visits are for walking and fishing rather than bathing. A green-marked hiking trail runs along the eastern and southern edges, from Beroun-Jarov via Havlíčkův mlýn to Koukolova hora or via Kotýz to the Koněprusy Caves. The dam stands at the northern edge, about 1.5 km above the stream's mouth into the Litavka.

The dam is an 85-metre earth-fill embankment rising 13.5 m above the reservoir bed, holding 0.484 million m³ of water over 9.32 ha. Its spillway has an architecturally designed concrete chute at the right abutment. The reservoir was drained and its sediment removed during the 2013–2014 repairs.