此次关洲水道应急疏浚工程完工后，通过优化调整航标，可将航宽提升至210米，保障宜昌中水门至松 滋跨宝山航段枯水期4.5米水深稳定运行。 中新网宜昌12月19日电 (记者 郭晓莹)记者19日从长江宜昌航道局、长江荆州航道处获悉，长江中游宜 昌段关洲水道应急维护疏浚工程、荆州段陡湖堤水道应急抢通疏浚工程均于近期完工，航宽显著提升， 通航条件得到改善。 关洲水道上至石灰窑，下至跨宝山，全长10.9千米。该水道属弯曲分汊河型，浅区航宽有限，制约航道 通过能力，且给船舶航行带来安全隐患。此前，航道部门已对关洲边滩浅区实施养护疏浚，推动局部航 道条件显著改善，但航段弯曲、浅点残留等问题仍未彻底解决，枯水期水深保障压力依然突出。 为彻底解决这一长期存在的航行安全隐患，长江荆州航道处启动陡湖堤水道应急抢通疏浚项目。经过专 项施工，该水域碍航乱石现已全部清除，枯水期适航宽度由不足150米拓宽至约200米，航道通航能力大 幅提升。(完) 陡湖堤水道杨公堤区域位于荆江中段，沿线码头分布密集，通航环境复杂，水下暗藏的乱石堆侵占下行 航道，对过往船舶安全航行构成较大威胁。近年来，受荆江河床下切、枯水期水位下降及船舶大型化趋 势等多重因 ...

Core Viewpoint - The commencement of the Yangtze River's Yichang-Wuhan channel maintenance dredging project aims to enhance the water depth to 4.5 meters during dry seasons, addressing the bottleneck in the middle section of the river, which is crucial for improving shipping efficiency and logistics in Hubei province [1][2][3] Group 1: Project Overview - The Yichang-Wuhan section of the Yangtze River is approximately 612.5 kilometers long, accounting for about one-fifth of the entire Yangtze River navigation channel [1][6] - The project is part of the "645 Project," which aims to achieve a 6-meter depth from Wuhan to Anqing and a 4.5-meter depth from Wuhan to Yichang, facilitating larger vessels to navigate these waters [2][3] - The direct economic benefits from the "645 Project" are estimated to reach 54.7 billion yuan over 20 years, significantly reducing logistics costs along the river [2] Group 2: Challenges and Solutions - The Yichang-Wuhan section has historically faced challenges due to its complex riverbed composition and frequent changes in sedimentation, making it a difficult area for navigation improvements [2][6] - An alternative solution proposed is the construction of the Jinghan Canal, which aims to bypass the problematic sections of the river, although it has not yet been included in national planning [7][10] - Experts suggest that upgrading the water depth to 6 meters in the future could further enhance shipping capabilities, allowing for larger vessels to navigate upstream [12][13] Group 3: Economic Impact - The improvement of the Yichang-Wuhan channel is expected to lower transportation costs for bulk goods and enhance the connectivity of industries along the river [15][17] - Hubei province aims to establish itself as a key logistics hub, with multiple ports achieving over 100 million tons in cargo throughput, indicating a robust growth in waterway transportation [17][18] - The provincial government has set ambitious targets for fixed asset investments and port capacity enhancements, aiming to solidify Hubei's position in the national logistics network [18]