Center for Urban Water, Sri Lanka

The Center for Urban Water is being set up for flood control and water management in Metro Colombo, to become operational in 2018. Its primary function is the control of pumps and gates that are being installed under the Metro Colombo Urban Development Project.

STATE OF WATER

A combination of hydrological and hydro-dynamic  models are used to forecast the state of water in the Colombo System with rainfall inputs from numerical weather forecasts, satellite data and rain gauge observations. Current and future canal water levels, interaction with river and the lake water levels are forecast in 15 min time intervals at present.

RISK MANAGEMENT

The impact of urbanization on urban water as well as impacts of floods on population and properties are modeled. Pre-disaster loss estimations based on vulnerability functions for different building categories are carried out to clarify flood control investment needed. Various urban water management strategies including improving conveyance as well as retention, including green infrastructure are studied. 

MONITORING AND CONTROL

A dense network of rainfgauges and water level sensors are planned to be installed in the basin. A scada control system will be employed to control 3 pumping stations and 3 gate structures. In addition future developments in retention storage units will also be monitored and control through the center.

CUrW

Six stories of a new building will house a state-of-the-art center for data integration, modelling, control and dissemination. The first two floors are planned for public outreach, the 3rd floor for data integration and flood control, 4th floor for environmental services, 5th floor for R&D and the 6th floor for administration.

Mission

Develop an integrated flood control and water management information system for flood risk reduction through optimal operational use of flood control facilities such as pumps, storages facilities, surface storages and  flood early warning system for Metro Colombo. Center will also assess current and evolving future water related risks to Megapolis from urban development as well as climate change.

Vision

Promote flood safety and livability of Metro Colombo, supporting the Megapolis development and operations through integrated spatial and temporal information management.

Working With