Core Viewpoint - The construction of the Erdao River Reservoir is a critical project aimed at enhancing flood control capabilities in the southwestern region of Beijing, with a total capacity of 76.32 million cubic meters and expected completion by the end of 2030 [1][2]. Group 1: Project Overview - The Erdao River Reservoir is located in the upper reaches of the Dashi River basin, with the main dam being the first roller-compacted concrete gravity dam in Beijing, standing at 100 meters high, making it the tallest dam in the city [1][2]. - The reservoir is designed to reduce the historical maximum flood peak of 5,300 cubic meters per second, effectively controlling 75% of the mountainous watershed area of the Dashi River [2]. Group 2: Construction and Technology - The project will utilize advanced technologies such as intelligent compaction and temperature control to ensure high construction quality, and a digital twin platform will be established for more scientific and intelligent management of the reservoir post-commissioning [2]. - The construction tasks include road relocation, earthwork excavation, and concrete pouring, with a focus on adhering to the overall progress plan and key timelines to ensure the reservoir is operational by the end of 2030 [2]. Group 3: Flood Control Significance - Historically, the Dashi River basin has faced frequent flooding, with significant events recorded in 2012 and 2023, highlighting the urgent need for effective flood control measures [1]. - The completion of the Erdao River Reservoir is expected to significantly enhance flood safety in the southwestern part of the capital, providing a robust barrier against upstream floodwaters [2].

Core Viewpoint - The construction of the Erdao River Reservoir in Beijing's Fangshan District is a critical project aimed at enhancing flood control capabilities in the region, with a total capacity of 76.32 million cubic meters and expected completion by the end of 2030 [1][2]. Group 1: Project Overview - The Erdao River Reservoir is designed to mitigate flood risks by controlling the peak flow of 5,300 cubic meters per second, effectively managing 75% of the mountainous watershed area of the Dashi River [2]. - The reservoir will feature Beijing's first roller-compacted concrete gravity dam, standing at 100 meters, making it the tallest dam in the city [1]. Group 2: Historical Context and Need - The Dashi River basin has a history of severe flooding, notably during the 2012 "7.21" flood and the record-breaking flood in July 2023, which significantly impacted local communities [1]. - The absence of controlling hydraulic projects in the Dashi River basin has led to substantial downstream impacts from upstream water flow, highlighting the necessity for the reservoir [2]. Group 3: Technological and Strategic Aspects - The construction will incorporate advanced technologies such as intelligent compaction and temperature control to ensure high-quality dam construction [2]. - Post-construction, a digital twin platform will be established for more scientific and intelligent management of the reservoir's operations [2]. Group 4: Broader Implications - The project is part of a larger initiative by Beijing's water management authorities to accelerate the development of major hydraulic engineering projects, enhancing the flood control infrastructure in the capital [2].

Core Viewpoint - The construction of the Erdao River Reservoir has commenced, which will be the highest dam in Beijing upon completion, aimed at flood control and enhancing safety for the surrounding regions, including Xiong'an New Area and Zhuozhou City [1][2]. Group 1: Project Overview - The Erdao River Reservoir will have a maximum dam height of 100 meters and a total storage capacity of approximately 76.32 million cubic meters, designed to withstand a flow rate of 5,300 cubic meters per second [2][3]. - The project aims to mitigate the impact of severe flooding in the Dashi River basin, which has historically faced significant flood disasters [1][2]. Group 2: Construction Details - The construction involves advanced technologies such as intelligent compaction and temperature control to ensure high quality and efficiency [3][6]. - Key construction milestones include earth excavation by March 2026, diversion channel construction by November 2026, and completion of the dam by December 2030 [6][7]. Group 3: Environmental Considerations - The project incorporates eco-friendly designs, including the use of ecological platforms and vegetation restoration to blend the dam with the natural landscape [6]. - The construction process is designed to minimize energy consumption through smart technologies [6].