Report: An obsession with concrete construction, dictated by greedy engineers and contractors, has led to the Gomti river rising to a dangerous level, threatening the trans-Gomti area. While the clamour for 'bund' continues, no one is talking about the long-overdue dredging that experts feel is the solution to any flood threat in future.A recently-conducted survey by RITES shows that authorities' failure to carry out 'desilting or dredging' has led to the river bed rising continuously over the years. The rise is one to three metres at various points, pushing the water level further by the same height.