Graphic: Chignecto Isthmus Climate Change Adaptation Engineering Feasibility Study
An engineering study looking at ways to protect the piece of land connecting New Brunswick and Nova Scotia suggests the top three options will cost between $189 million and $301 million.
The Chignecto Isthmus is a 21-kilometre wide stretch of land linking the two provinces and is the only land bridge connecting them. An estimated $35 billion worth of trade is conducted annually via this corridor between Amherst, NS and Sackville, NB.
Work on the Chignecto Isthmus Climate Change Adaptation Engineering Feasibility Study began in 2018, and the总结报告3月16日发布。该研究注意到气候诱导的海平面和沿海沉降的结合预计将在2100年之前威胁大多数大西洋加拿大沿海基础设施。
This means the Chignecto Isthmus dykes and the infrastructure they protect are at risk. The isthmus trade corridor includes the TransCanada Highway, CN Rail, 138 kV and 345kV electricity transmission lines, a wind farm, fibre optic cables, agricultural cropland activities, and other utilities.
“Situated in the Upper Bay of Fundy, the exposure of transportation infrastructure within the study Area to the tidal and climatic conditions leaves the Chignecto Isthmus particularly vulnerable to climatic change impacts given the Isthmus is only slightly above sea level,” the study’s authors note.
“目前，有这些现有地土堤保护的海峡部门的地区，没有哪些，斯蒂姆斯将被现有的海平面淹没。”
The report’s authors recommend three options to preserve the national trade corridor: raising the existing dykes ($200.2 million); building new dykes ($189.2 million); and raising the existing dykes and installing steel sheet pile walls at select locations ($300.8 million).
On Friday afternoon, New Brunswick Transportation and Infrastructure Minister Jill Green and Nova Scotia Public Works Minister Kim Masland met virtually with reporters to discuss the study and the three selected options.
“随着我们进入更详细的工程，我们开始深入了解环境评估，考古学评估，与权利持有人和利益相关者的磋商......我们如何进行可能决定自己，”绿化告诉记者。
“I could easily see maybe a hybrid of the three options that will work best when we get a little bit further down the road.”
美兰兰州将斯蒂姆描述为哈利法克斯港和内陆北美之间的唯一联系，并指出流经该地区的商品和服务和公用事业的价值使其保护至关重要。
The study suggests construction would begin five years after an option is chosen, with completion of the project taking place in 10 years.
“气候科学分析表明，目前的基础设施将适应预计的气候变化/气候变化危险进入未来，除了我们是否有其发生和强度是非常难以预测的天气事件，”墨西兰告诉记者。
“在Nova Scotia公共工程和新不伦瑞克交通部（基础设施），绿化部长和我，我们认识到在加速基础上实施该项目的重要性，这就是我们将如何前进。”
The provinces of Nova Scotia and New Brunswick will explore all three options (including funding) in collaboration with the federal government.
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