Kolkata: State Principal Secretary, Public Works Department (PWD), Arnab Roy has directed executive engineers of all divisions to remove thick bituminous overlay if any from the bridges and flyovers and submit an action taken report within 10 days.Directions have further been issued to the engineers to clear all vegetation from the bridges and its undersides including tree roots.”After inspection, we have stumbled upon thick bituminous overlay on a number of bridges which is more than the design parameter. This may result in subsidence of the portion where this overlay has been found. So we Also Read – Rain batters Kolkata, cripples normal lifehave directed engineers of all divisions to make sure that the bridges conform to thedesign parameters,” a senior official of the state PWD said.The executive engineers of all divisions will remove the super-imposed dead load on these bridges and flyovers. According to the directions issued by Arnab Roy, Principal Secretary of PWD, thework of removing the bituminous overlay as well as the vegetation in the bridges including tree roots should be done with immediacy and a report in this regard should be sent to the joint secretary (Roads) within 10 days. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedIt may be mentioned that the state PWD department has already undertaken repair works of as many as 15 bridges that have been labeled as severely distressed after a thorough inspection that had followed after the cave-in of a portion of the Majerhat bridge on September 4.It may be mentioned that the Kolkata Metropolitan Development Authority (KMDA) has already constituted an Advisory Committee for monitoring the health of the bridges in the city.It has prepared a list of 15 bridges that need structural health audit on a priority basis. The list includes Dhakuria Bridge connecting Golpark with Dhakuria, Bijon Setu connecting Gariahat with Kasba, Aurobindo Setu connecting Gouribari with Ultadanga, Chetla Bridge connecting Kalighat with Chetla, Kalighat Bridge connecting Kalighat with Gopalnagar, Durgapur Bridge connecting New Alipore with Chetla, Ultadanga Flyover connecting EM Bypass with VIP Road, Sukanta Setu connecting Jadavpur with Santoshpur, Bankim Setuconnecting Howrah Maidan with Howrah Station, Chingrighata flyover connecting EM Bypass with Salt Lake, Sealdah flyover, Bridge Number 4 on Park Circus rail line, Jibanananda Setu near Jadavpur police station and the arch type bridge at Karunamoyee in Tollygunge.State Urban Development minister Firhad Hakim has himself visited more than 10 of these bridges.