TDEC Significant and Low Hazard Dams

Overview This feature service provides a point layer of dams identified by the Tennessee Department of Environment and Conservation (TDEC) Division of Water Resources. It includes significant and low hazard dams within the SCTDD region and supports regional water resources mapping and dam inventory review. Feature Layer SignificantandLowHazard_SCTDD: Point features representing dams with attribute information such as dam name, owner, county, address, city, state, ZIP code, construction type, topography, structural height, crest length, normal pool area, and location coordinates. Geographic Coverage The layer covers the SCTDD region in Tennessee. Use Cases Dam inventory and asset tracking Water resources planning and regional studies Emergency preparedness and hazard awareness Environmental and infrastructure mapping Source: https://tdec-division-of-water-tdec.hub.arcgis.com/datasets/significant-and-low-hazard-dams/explore概述：本要素服务（feature service）提供由田纳西州环境与保护部（Tennessee Department of Environment and Conservation，TDEC）水资源司认定的大坝点图层（point layer）。该图层涵盖SCTDD区域内的重大及低风险大坝，可支撑区域水资源制图与大坝清单审查工作。 要素图层：SignificantandLowHazard_SCTDD 要素图层以点要素形式表征大坝，附带大坝名称、权属单位、所属县、详细地址、所在城市、州别、邮政编码、建筑结构类型、地形条件、结构高度、坝顶长度、正常蓄水区面积及位置坐标等属性信息。 地理覆盖范围：本图层覆盖田纳西州SCTDD区域。 应用场景：1. 大坝清单编制与资产追踪；2. 水资源规划与区域研究；3. 应急准备与风险预警；4. 环境与基础设施制图。 数据来源：https://tdec-division-of-water-tdec.hub.arcgis.com/datasets/significant-and-low-hazard-dams/explore