Final answer:
The 4 main floodplain management strategies of the Unified National Program for Floodplain Management are land use planning, flood forecasting and warning, floodplain mapping and regulation, and floodplain restoration and management.
Step-by-step explanation:
The Unified National Program for Floodplain Management's 4 main floodplain management strategies are:
- Land Use Planning: This strategy involves regulating the use of land in flood-prone areas to minimize the impact of floods. It includes zoning restrictions, construction codes, and building permit requirements. For example, prohibiting the construction of homes or businesses in floodways.
- Flood Forecasting and Warning: This strategy involves the use of advanced technologies and data to predict and warn people about upcoming floods. It includes monitoring weather patterns, river levels, and rainfall to provide accurate warnings and allow residents to evacuate or take necessary precautions.
- Floodplain Mapping and Regulation: This strategy involves mapping flood-prone areas and implementing regulations to control development in those areas. It includes creating floodplain maps, establishing setback requirements, and enforcing floodplain regulations.
- Floodplain Restoration and Management: This strategy focuses on restoring and managing natural floodplain environments to reduce flood risks. It includes restoring wetlands, creating flood storage areas, and implementing sustainable land management practices.