Detention Basin refers to a stormwater management practice designed to temporarily store excess runoff and release it at a controlled rate. This skill involves the design and implementation of basins that capture and hold stormwater, reducing the risk of flooding and erosion while improving water quality. Knowledge of Detention Basin is used to assess site conditions, calculate storage requirements, and ensure compliance with environmental regulations, ultimately contributing to effective watershed management.

Erosions refers to the process of wearing away soil, rock, or other materials from the Earth's surface due to natural forces such as water, wind, and ice. This skill encompasses the understanding of the mechanisms and factors that contribute to erosion, as well as the assessment of its impact on landscapes and ecosystems. Knowledge of Erosions is used to develop strategies for soil conservation, land management, and environmental protection by mitigating the effects of erosion and promoting sustainable practices.

Flood Controls refer to the strategies and systems implemented to manage and mitigate the impact of flooding in various environments. This skill encompasses the design, installation, and maintenance of infrastructure such as levees, floodwalls, and drainage systems that help redirect or contain excess water. Knowledge of Flood Controls is used to assess flood risk, develop emergency response plans, and ensure the safety of communities by minimizing potential damage from flood events.

Hydraulic structure pertains to the design, construction, and maintenance of structures that manage water resources such as dams, channels, culverts, and water treatment plants. This field requires expertise in engineering, hydrology, and geology to create sustainable structures that ensure the efficient and safe management of water for human consumption, irrigation, and flood control. As a specialized skill, professionals in hydraulic structure work closely with environmental experts, government officials, and communities to ensure water security and safety.

Levees are specialized embankments or earthen barriers that are built along rivers, lakes, and other bodies of water to prevent floods and protect adjacent areas from water damage. This work requires specialized engineering and construction skills, including knowledge of soil mechanics, hydrology, and geotechnical engineering. In addition, levee construction often involves coordinating with local government agencies, environmental groups, and other stakeholders to ensure that the resulting structure is safe, effective, and environmentally sound.