ABSTRACT
This chapter discusses the various aspects and requirements in the planning, implementation, operation, and maintenance of urban stormwater collection systems in Singapore. The primary objective of a stormwater collection system is to maximize surface runoff collection. Parameters that have significant impact on such collection are rainfall patterns and land-use characteristics. Urban stormwater collection systems must therefore be designed to catch the "flashy" runoffs in a relatively short period. Stormwater, if it is to be used for water supply augmentation, must be of acceptably good quality. Beyond the utilitarian/functional design of the initial group of stormwater collection systems, the newer ones being constructed/planned have been upgraded to incorporate aesthetics and even limited recreational facilities into their design. In consideration of tight labor situation, operation of stormwater collection systems in Singapore is highly automated. Additional factors to consider in the development and management of urban stormwater collection systems, besides water quality aspects, would include both operations and maintenance aspects of these systems.
