Stormwater Culverts

Layer published weekly. The Culverts layer was generated using a combination of Construction drawings (as-builts), survey captured locations, orthophotos, and field inspection descriptions. The data is updated and maintained on a daily basis by DPW Technical Engineering Staff.本图层每周发布更新。涵洞（Culverts）图层结合竣工施工图（as-builts）、测量采集点位、正射影像图（orthophotos）及现场巡检记录生成。该数据由DPW技术工程人员每日开展更新与维护工作。