New Delhi, Oct 13 (UNI) Prime Minister Narendra Modi will lay the foundation stone for four sewerage projects and an equal number of National Highways projects worth Rs 3,769-crores in Bihar on Saturday. The ceremony will take place at Mokama and Minister for Water Resources, River Development and Ganga Rejuvenation, Road Transport & Highways and Shipping Nitin Gadkari will also be present. These four sewerage projects costing around Rs 738.04-crore include sewage treatment plant at Beur, sewerage system with sewer network at Beur, sewage treatment plant at Karmalichak and STP and sewer network at Saidpur. These projects together will create new STP capacity of 120 MLD and upgrade the existing 20 MLD for Beur. It also includes sewer network of 234.84 km in Beur and Saidpur zones. In Patna, seven other sewerage projects are at various stages of implementation, out of which two – Digha and Kankarbagh sewerage zones – worth Rs 1,402.89 crore are sanctioned under Hybrid Annuity-based PPP mode. The existing population in the city is 16,83,000 and the existing sewage generated is 220 MLD and sewage load is expected to be 320 MLD by the year 2035. Compared to the existing sewage generation, the existing sewage treatment capacity is only 109 MLD. Also the existing STPs are outlived and are treating at a much lower capacity. The city also has 11 main drains which are discharging directly to river Ganga. More UNI RBE SV SNU 1255