revival of buckingham canal took shape by government's national waterway 4 (nw-4) declaration on november 2008. both north buckingham (peddakanjam, ongole-chennai) and south buckingham (basin bridge, chennai - marakkanam) canal will be developed under the proposed national waterway 4 by inland waterways authority of india. periodically, government of tamil nadu also takes up dredging and widening of the canal through water resources department, public works department (pwd). with the provisions of state-center shared jawaharlal nehru national urban renewal mission (jnnurm), pwd has started widening the south buckingham canal from okkiyam madu to muttukadu for a stretch of about has been allocated under the jnnurm for integrated development of waterways and macro drainages like buckingham canal, otteri nullah, virugambakkam – arumbakkam drain, cooum and adyar river. despite of the development, the central section of the canal running through the most congested areas of chennai, a length of will remain unnavigable due to severe encroachments and construction of the chennai mass rapid transport system.