Getar

The Getar River area is very densely populated - 5021 inhabitants per square kilometer. The surrounding area is dominated by a cold climate. The average annual air temperature at the mouth is 14 ° С. The warmest month is July, when the average temperature is 30 ° C and the coldest is January, with −8 ° C. The average annual rainfall is 655 millimeters. The wettest month is May, with an average of 100 mm of rain, and the driest month is August, 18 mm ^[3] .

In 1664, on the Getar River, not far from the old Nork district, opposite the entrance to the Yerevan Zoo , a 7 meters high was built. The design was developed by a certain architect named Grigor with the financial support of the Hovhannes Norksky vardapet . The bridge was of great importance because it served as the only way to cross the river and enter Yerevan from the north. It was one of the few structures in the area that survived the devastating earthquake in 1679 . Under Soviet rule in the 1950s, the bridge was repaired and came under state protection. It is well preserved today ^{[4] [5]} .

Mudflows often went along the Getar bed, the most noticeable of which occurred in 1860, 1866, 1873, 1912, 1923, 1924, 1946, 1947 and 1950.

The most recent serious mudflow occurred on May 25, 1946. The Seventh Stream caused great damage and destruction to the city. About 800 houses were destroyed, and another 630 were seriously damaged, about 200 people died. The disaster began at 8:30 pm and lasted five and a half hours. It affected the streets of Alaverdyan, Nalbandyan and Abovyan . After the flood, local residents were surprised to find stones 2 to 3 meters in diameter that settled on the streets ^[6] .

During the 1950s, a series of hydraulic works was implemented. Afforestation was carried out. A tunnel connecting Getar with the Hrazdan River was built to prevent future mudflows in Yerevan ^[7] .