The flow of the Yauza is regulated (particularly in winter) and reinforced with water from the Volga that reaches the city through the Moscow Canal. 80 million cubic meters of Volga water is sourced each year from the Khimki Reservoir in northwest Moscow and fed through underground pipes and an open channel to Golovinsky Ponds and the Likhoborka River (a tributary of the Yauza). The water level in the lower Yauza is regulated by the Pererva Dam () on the Moskva River, and by the locks () on the Yauza itself east of Kursky Rail Terminal. Raised water levels in the downtown portion of the Yauza basin led to long-term flooding and death of trees deep inside Losiny Ostrov.