Core Viewpoint - The completion of the main project of the Yongding River Lusan section comprehensive improvement project significantly enhances flood control capabilities and creates a new leisure landmark for citizens [1][2]. Group 1: Project Overview - The Yongding River Lusan section project is part of the Haihe "23·7" flood recovery and reconstruction initiative, featuring innovative underground reinforced concrete anti-scouring walls [1]. - The project includes a 9.1-kilometer waterfront slow-moving system, expected to open to the public in April next year [1][2]. Group 2: Engineering Details - The comprehensive improvement project spans 17.4 kilometers from Lugou Bridge to Sanjiadian, addressing flood safety hazards such as insufficient height and severe erosion [2]. - The last reinforcement of the levee occurred in 1983, and the new design includes a 23-meter deep, double-wall π structure flood wall, capable of withstanding flood impacts of 16,000 cubic meters per second [2]. Group 3: Community Impact - The project adopts a "dual-use" concept, allowing for both flood control and public recreational use, with the levee top serving as a pathway for citizens [2]. - The Yongding River Ji, located within the project area, has become a popular leisure space, attracting over ten thousand visitors on weekends since its opening [3].

Core Insights - The "Yongding River Collective" has become a popular new landmark in Beijing, combining urban life and nature while serving as part of the Yongding River Lu San Section Comprehensive Improvement Project, which aims to enhance flood resilience and create high-quality waterfront spaces [1][4][11] Group 1: Project Overview - The Yongding River Lu San Section Comprehensive Improvement Project is a post-disaster recovery initiative following the "23·7" flood, focusing on both flood safety and the development of surrounding areas [4][12] - The project spans 17 kilometers, with a 1.6-kilometer demonstration section where the "Yongding River Collective" is located, connecting Shijingshan and the Yongding River [8][12] Group 2: Design and Functionality - The design incorporates a "dual-use" strategy for the levee, allowing for emergency vehicle access during floods while also serving as a recreational space for the public [6][10] - The project emphasizes ecological considerations, aiming to restore the river to a "flowing, green, clean, and safe" state, while minimizing artificial structures to maintain natural aesthetics [10][11] Group 3: Community Impact - The "Yongding River Collective" has significantly increased foot traffic to the area, attracting families and enhancing the local economy [2][11] - Future plans include expanding the project to further enhance the waterfront experience and integrate more cultural and commercial activities [11][12]

Core Viewpoint - The Yongding River Lusan Section Comprehensive Improvement Project is nearing completion, featuring a 4.6-kilometer waterfront slow-moving system that will connect with an existing system to create a total of approximately 9.1 kilometers of recreational space along the river [1][2]. Group 1: Project Overview - The project includes the construction of a 4.6-kilometer long embankment top slow-moving system, which will be completed next year [1]. - The newly constructed embankment will enhance the flood control capacity through the addition of a vertical anti-erosion wall, which is 23 meters deep and 0.8 meters thick [2]. - The project is part of the post-disaster recovery efforts following the "23·7" flood in the Haihe River basin, aimed at improving the flood control system and the ecological environment of the Yongding River [2][3]. Group 2: Environmental and Recreational Aspects - The slow-moving space on the embankment will provide citizens with opportunities for walking, running, cycling, and enjoying river views, enhancing public access to the water [1]. - The project will also include ecological restoration efforts, such as planting various species of plants along the embankment and restoring riverbank areas [2][3]. - The Yongding River management is currently in a critical phase of a three-year improvement project, which includes multiple sections and aims to enhance both flood control and recreational spaces for the public [3].