简要规则描述：本工程为I等工程，水工建筑物级别应根据工程等别及其在工程中的重要性确定，本工程主要在海塘内青坎上进行换填土、绿化种植等海塘附属设施建设，上述设施损坏后不会立即造成海塘出险，因此可定为3级建筑物。主要内容为对海塘管理桩号21+767~22+967和19+998~20+288段的1490m海塘进行生态化改造。具体改造内容包括外坡生态改造，内青坎绿化整治，增设巡检步道、内坡台阶及栏杆、防护门、喊话系统等。

Brief Specification Description: This project is a Class I project, and the level of hydraulic structures should be determined based on the project grade and its importance in the project. The project mainly involves the construction of seawall ancillary facilities such as replacement soil and green planting on the green ridges inside the seawall. If the above facilities are damaged, it will not immediately cause danger to the seawall, so it can be classified as a Class 3 building. The main content is to carry out ecological transformation of the 1490m seawall in sections 21+767-22+967 and 19+998-20+288 of the seawall management stake. The specific renovation content includes the ecological renovation of the outer slope, the greening and improvement of the inner Qingkan, the addition of inspection trails, inner slope steps and railings, protective doors, and shouting systems.