There have been several mudflows of the Getar throughout history, the most notable of these occurred in 1860, 1866, 1873, 1912, 1923, 1924, 1946, 1947 and 1950. The most recent serious mudflow of Getar occurred on May 25, 1946. The mudflow "caused serious damage and destruction to the city. Around 800 houses were destroyed and another 630 were seriously damaged". and lasted for five and half hours. After the flood, the locals were surprised to find rocks measuring 2 to 3 meters in diameter deposited in the streets. During the 1950s, a series of hydro-technical and
afforestation projects were implemented including a tunnel linking the Getar to Hrazdan River to prevent future mudflows in Yerevan. ==References==