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首页> 外文会议>Pipelines Conference >Eagles, Prairie Dogs, and Jumping Mice: Oh My! Installing a Large Diameter Pipeline within Sensitive Environmental Areas
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Eagles, Prairie Dogs, and Jumping Mice: Oh My! Installing a Large Diameter Pipeline within Sensitive Environmental Areas

机译：老鹰队，草原狗和跳跃老鼠：哦，我！在敏感的环境区域内安装大直径管道

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Large diameter transmission pipelines are critical infrastructure that, within more arid areas of the country, must traverse long distances to bring water to the communities that need it. As the state of Colorado continues to grow and develop, the open and rural spaces between population centers tend to have more critical wildlife habitat and environmental protections. While these rural areas can be prime pipeline corridors, consideration, and planning is necessary to successfully construct a pipeline when endangered species and environmentally sensitive areas cannot be avoided. Northern Colorado Water Conservancy District (Northern Water) is building the Southern Water Supply Project II (SWSPII)-a large-diameter raw water regional pipeline project over 20 mi in length through Larimer and Boulder Counties in Colorado. The 36-in diameter steel pipeline will provide raw water to four (4) different public entities. Routed through multiple endangered species habitats, protected prairie dog colony land, and other protected raptor species nesting zones, this project has unique design, permitting, and construction challenges. During the design phase of the project, an inventory of all wildlife impacts and associated schedule constraints was developed. Multiple raptor surveys, Preble's Meadow Jumping Mouse habitat surveys, wetland delineations, and prairie dog counts were completed. Different raptor, wetland, and prairie dog protocols for the four (4) different jurisdictions in the pipeline's path were evaluated and documented. In addition to wildlife schedule constraints, a variety of farming and irrigated land impacts and schedule limitations were prevalent on the project. A detailed list of all these constraints were provided to the contractor during the bid phase of the project. As construction on the project began in Summer 2018, it was clear the project could not proceed in a linear fashion from one end to the other. Timing the work with the variety of constraints and timelines, as well as bird nesting changes, proved very challenging. This paper will describe the challenges, construction approach, and lessons learned to both plan and construct large diameter pipelines in environmentally sensitive areas with detailed schedule constraints. Some elements to be discussed include the following: allowing time for all construction activities, testing, and contingencies; best practices for minimizing impacts in wetlands; expediting construction when needed; and getting Contractor buy-in on schedule.
机译：大直径传输管道是关键基础设施，在该国的更多干旱地区，必须长途跋涉使水带到需要它的社区。由于科罗拉多州继续发展和发展，人口中心之间的开放和农村空间往往具有更为严重的野生动物栖息地和环境保护。虽然这些农村地区可以是素质管道走廊，但考虑和规划是必要的，因为当濒危物种和环境敏感区域无法避免时，必须成功构建管道。科罗拉多州水利区（北方水）正在建设南方供水项目II（SWSPII） - 通过科罗拉多州的Larimer和Boulder县的长度超过20英里的大直径原水域管道项目。 36直径钢管管道将为四（4）个不同的公共实体提供原水。通过多种濒危物种栖息地，受保护的草原犬群土地和其他受保护的猛禽物种嵌套区，该项目具有独特的设计，允许和施工挑战。在该项目的设计阶段，开发了所有野生动物影响和相关的时间表约束的清单。多次猛禽调查，鞋面的草地跳跃鼠标栖息地调查，湿地描绘和草原狗数完成。在管道路径中的四（4）条不同司法管辖区的不同猛禽，湿地和草原狗协议被评估并记录。除了野生动物计划限制外，该项目还普遍各种农业和灌溉土地影响和安排限制。在项目的出价期间向承包商提供所有这些约束的详细名单。由于该项目的建设始于2018年夏天，因此该项目无法从一端以线性方式进行。与各种限制和时间表以及鸟类嵌套变化的工作相当，证明了非常具有挑战性。本文将描述挑战，施工方法和对计划中学的挑战，施工方法和教训，在环境敏感区域中构建大直径管道，详细的时间表约束。要讨论的一些要素包括以下内容：允许所有施工活动，测试和突发事件进行时间;最大限度地减少湿地影响的最佳实践;需要时加快建筑;并按时间表获得承包商买入。

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