HA NOI — More than 50 weak spots in the dyke systems in northern provinces need strengthening, according to the Department of Flood, Storm Control and Dyke Management.
Vu Xuan Thanh, deputy director of the department, said landslips and fissures had appeared, apparently caused by leaks from water and sewerage pipelines – and complex water flows.
He said the provinces should be on the alert during the present rainy season, which had raised water levels in the Hong, Thai Binh, Da and Duong rivers.
According to the National Centre for Hydro-Meteorological Forecasting, more heavy rains and storms are forecast for the north in coming weeks.
The department's job is to protect and enhance the dyke system in co-operation with local authorities and police.
The director of the Ha Noi office of the department, Do Duc Thinh, said the city has worked out ways of protecting 100km of dykes along the Hong and Duong rivers.
He said the areas worst affected by landslips and fissures were in the districts of Tu Liem, Hoang Mai, Dong Anh, Soc Son, Quoc Oai, Dan Phuong and Ba Vi.
The capital city's 469-km dyke system has been able to keep large flooding in check. However, plans are being put forward to handle a one-in-100-year flood.
Thinh said hundreds of billions of dong were being funnelled every year into improving the city's dyke system. — VNS