According to a preliminary analysis by the garden department, repeated road work, particularly digging trenches by various utilities, leads to weakening of roots of full-grown trees.
"This problem is common in the case of trees along roads," said Vijay Hire, superintendent of gardens.
So the civic official has in a letter to the roads department, asked them to follow the rules when carrying out any work.
"Before carrying out any digging work, the road department should inform the tree officer of the ward about the work to be done and the work should be done only in the presence of the officer," the letter states.
"A distance of two metres should be kept between the tree and
the spot that is to be dug. It should be ensured that the roots are not damaged and the soil is spread evenly over the roots," states the letter. This will ensure that trees do not get uprooted easily.
As per data from the gardens department, 130 trees in the BMC's jurisdiction have collapsed between June 1 and July 29. A total 166 trees collapsed on private premises in the period.
Ashok Pawar, chief engineer, roads department, said, "We have received the letter. However, the permission for most road works is issued at the ward level these days. So, we will circulate copies of the letter to the wards, so the officials follow the directions."