The oldest exhibits date back to the early 20th century. The collection contains drawings, plans, photographs and flow- charts of river regulation (mainly of Labe and Vltava), weir (Kolin, Steti), locks (Mirovice, Obristvi), hydroelectric power stations (Hradec Kralove, Podebrady), canal locks, dams, ports and river channels (Danube-Vltava). The collection is completed with several tens of models of dams, weirs, locks, ice guards, etc. A separate part is represented by water gauges.