The Asian Development Bank's investment program in the Dhaka Water Supply and Sewerage Authority provided a breakthrough in approaching urban development, particularly the delivery of clean, reliable, affordable water and to the poor, no less. And not just a breakthrough for Dhaka or the rest of Bangladesh, but for the region of South Asia. This publication looks at the key success factors that other utilities are taking note of: the zonal approach to rehabilitating and managing urban water services, trenchless technology for expeditiously laying pipes, and how to connect the urban poor---and keeping them connected---through community-managed approaches.