laid in the New Territories was more than double that of the previous year, much of the increase being attributable to drainage laid for development of the Tsuen Wan and at Shek Wu Hui. The defective drainage replaced on the Island included extensive relaying of sewers in Wan Chai to connect up to the new Wan Chai Sewerage Scheme.
193. Minor maintenance works were carried out in Government air-raid tunnels.
RESETTLEMENT (DOMESTIC AND INDUSTRIAL) AND HOUSING DEVELOPMENT
194. Extensive drainage works were carried out for the Resettlement Schemes at Wong Tai Sin, Li Cheng Uk and the Kwun Tong Industrial Development on the Mainland, and at Chai Wan on the Island. Drainage for Housing Development Schemes at So Uk, K.M.L.s 32, 33 and 47 Hung Hom, and K.M.L. 52 on the Mainland and at Java Road on the Island was well advanced. Preliminary investigation began for the drainage of the proposed Housing Authority site on Clearwater Bay Road near the village of Ngau Chi Wan. Extensive nullah and culvert construction commenced in the Jordan Valley to allow its development as a Resettlement Area.
NULLAH DECKING AND RECONSTRUCTION
195. A large programme of nullah decking included those at Hill Road, Smithfield Road, Chai Wan, Healthy Village and Sun Sing Street on the Island, and at Tonkin Street, Nelson Street, Tai Hang Tung, Lo Lung Hang Street and Waterloo Road from Soares Avenue to Peace Avenue in Kowloon. A considerable programme of nullah decking has been investigated.
196. Extensive nullah reconstruction was put in hand at Wun Sha Street to remedy the heavy flooding in Tai Hang Village and surrounding areas which has occurred in past years after each heavy rainstorm.
DISPOSAL WORKS AND INTERCEPTING SEWERS
197. In continuance of the policy of collecting the sewage of large drainage areas into intercepting sewers and carrying the final effluent out to sea in submarine pipes, the laying of intercepting sewers for the Wan Chai Sewerage Scheme continued and investigation work was carried out for the North Point Sewerage Scheme on the Island. Sections of the intercepting sewers for the Kowloon Eastern Drainage Scheme and the Cheung Sha Wan Outfall on the Mainland were also laid.
32