泥溪绿地揭幕：27英亩泄洪绿地治世代水患、75栋商业楼与18处住宅受益
北卡罗来纳州亨德森县亨德森维尔市10月30日为泥溪绿地举行揭幕仪式，这项城市有史以来规模最大的防洪工程之一正式完工。
泥溪流经的南区地势平坦开阔，历史上只要下三到四英寸雨，溪水就会漫上周边道路，困扰当地已有多代人。从去年起，市政府拆除了溪道两岸的堤坝，在市中心以南一片27英亩的市属土地上挖出一条蜿蜒的新河道，让河道离建筑更远，同时修建步道并补种本地植物。
今后溪水上涨时可以漫入绿地而不是冲上道路和建筑，绿地里的自动闸门还会根据水深开合，把一部分洪水暂时拦蓄下来。市雨水管理部门负责人迈克尔·霍夫曼在揭幕式上说，南区水患不是新问题，泥溪泛滥已有多代历史。州环境质量部长里德·威尔逊说，就在两三周前当地一天下了半英尺雨，是飓风海伦以来最大的一场雨。
这项工程获得州水利基础设施资金190万美元、洪水韧性蓝图资金70.4万美元和水资源开发拨款25万美元，受益范围内有75栋商业建筑和18处住宅面临中高度洪水风险，合计价值6200万美元，绿地还可净化周边400英亩已开发流域的雨水。市政府上月又在泥溪沿线购入22英亩土地，计划推进第二期泄洪区修复。
来源：GSM·美国
Hendersonville Unveils Mud Creek Greenspace: 27-Acre Floodplain Project Tackles Generational South Side Flooding, Benefiting 75 Commercial Buildings and 18 Homes
Hendersonville, Henderson County, North Carolina — The city held a ribbon-cutting on October 30 for the Mud Creek greenspace, completing one of the largest flood mitigation projects in the city's history.
The South Side area along Mud Creek is a broad, flat valley where as little as three to four inches of rain has flooded surrounding roads for generations. Starting last year, the city removed the berms along the creek and dug a new, meandering channel farther from buildings through a 27-acre parcel of city land south of downtown, building trails and replanting native species.
Now, when the creek rises it can overflow into the greenspace instead of roads and buildings, and automatic flood gates in the greenspace open and close with water depth to hold some floodwater back. Stormwater Director Michael Huffman said at the ceremony that South Side flooding is not a new problem and Mud Creek has flooded the area for generations. State Environmental Quality Secretary Reid Wilson noted that just two or three weeks ago the area got half a foot of rain in a day, the most since Hurricane Helene.
The project was funded by $1.9 million from the Division of Water Infrastructure, $704,000 from the Flood Resiliency Blueprint and $250,000 from the Water Resources Development Grant Program. Within the project area, 75 commercial buildings and 18 residential properties face medium-to-high flood risk, worth a combined $62 million, and the greenspace will also filter stormwater across 400 acres of developed watershed. Last month the city bought another 22 acres along Mud Creek for a planned second phase of floodplain restoration.
Source: GSM America
来源：GSM·美国（原文链接）
图片来源：图：Hendersonville, North Carolina, USA。来源：Wikimedia Commons（Quintin Soloviev，CC BY 4.0）
