Water logging in agricultural lands due to drainage problems

- Rethink the polders; basically changing the current main (agriculture) function in selected polders to allow inflow of sediment and mixed farming-aquaculture

- Ganges barrage to increase flow and reduce salinity and siltation (before building barrage first use Tidal River Management to reduce sediment and lift polders)

- Sediment Management

Tidal floods (during spring tide) may cause severe loss on unprotected coastal lands as well as sometimes breach earthen embankments, leading to potentially more harm

- Strengthening and heightening of the embankments

- Repairing the sluice gate and structures in the area

Water logging in urban areas, due to drainage problems

- Clear and widen canals

- Excavate ponds and create parks subsequently

Siltation causes blockage of rivers and canals, for fisheries causes further water logging

Dredging periodically (re-excavation) of rivers and canals

Increase salinization due to reducing upstream fresh water flow, affects biodiversity and agriculture

Change to salt tolerant crops (and introduce new technologies)

Constructing of poorly designed bridges, roads and culverts without considering drainage requirements

Redesign roads and bridges alignments and enhance drainage capacity of culverts, canals and sluices

Overtopping of embankments

Redesigning the embankments according to the prediction of climate change

Embankment erosion

- Maintenance and management of the embankments, especially ensuring enough funds for O & M

- Construct river bank protection to save valuable land and prevent siltation as well

Loss of water shed area due to siltation, encroachment and illegal occupation

Empowerment local government to prevent illegal occupation

Unauthorized pipe inlet for fisheries and shrimp culture

Restriction and enforcement, including strong communication between stakeholders and decision makers for joint decision-making

Drinking water scarcity due to salinization and arsenic, including excess lifting of groundwater (350 - 400 ft) (arsenic increasing in shallow aquifers)

- Rainwater harvesting, with on-farm reservoirs

- Aquifer Storage and Recovery (ASR)

- Reduce dependence on groundwater, switch from boro to aman