Redding Survey Benchmarks and Elevations

Overview This Feature Service presents survey benchmark data for the City of Redding, California, providing precise elevational and locational information. It is designed to support surveying, engineering, and mapping activities by offering reliable elevation reference points within the city limits. Vertical Datum for this benchmarks is NGVD 29 Feature Layers Benchmarks: This layer contains survey benchmark locations with detailed elevational data and descriptive attributes. Benchmarks serve as permanent reference points for elevation based on a vertical datum associated with mean sea level. The data includes elevation measurements, unique benchmark identifiers, and textual descriptions of their locations and characteristics, aiding in geospatial analysis and engineering projects. Geographic Coverage The dataset focuses specifically on the City of Redding, covering its geographic extent using the NAD 1983 StatePlane California coordinate system. This local coverage ensures relevance for municipal planning, infrastructure development, and land surveying within the city. Data Source and Quality This dataset is provided and maintained by Redding GIS in coordination with Redding Surveying and Engineering, ensuring authoritative and up-to-date survey information. The data is offered as-is with disclaimers regarding its completeness and accuracy, highlighting its use as a general reference resource. Use Cases Establishing elevation references for construction and civil engineering projects. Supporting mapping and geospatial analysis for municipal planning. Facilitating land surveying and property boundary determination.### 概述 本要素服务（Feature Service）提供加利福尼亚州雷丁市的测量基准点调查数据集，涵盖精准的高程与位置信息。本服务旨在为市域范围内的测绘、工程与制图活动提供可靠的高程基准点，支撑相关工作开展。本次基准点采用的垂直基准面（Vertical Datum）为NGVD 29。 ### 要素图层：基准点 该图层包含测量基准点（survey benchmark）的点位信息，附带详细的高程数据与描述性属性。基准点作为基于与平均海平面关联的垂直基准面的永久性高程参考点，数据涵盖高程测量值、唯一基准点标识符，以及点位与特征的文本描述，可助力地理空间分析（geospatial analysis）与各类工程项目。 ### 地理覆盖范围 本数据集仅聚焦雷丁市，采用北美1983加州州平面坐标系（NAD 1983 StatePlane California）覆盖全市域范围。该本地覆盖范围可精准适配本市范围内的市政规划、基础设施建设与土地测量工作需求。 ### 数据来源与质量 本数据集由雷丁地理信息系统（Redding GIS）协同雷丁测量与工程部门提供并维护，确保数据具备权威性与时效性。数据按现状提供，附带关于其完整性与准确性的免责声明，仅作为通用参考资源使用。 ### 应用场景 为建筑与土木工程搭建高程参考基准；支撑市政规划中的制图与地理空间分析工作；助力土地测量与宗地界址确定。