Abandoned Stormwater Culverts

Layer updated weekly.The Storm 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.本图层每周更新一次。雨水涵洞（Storm Culverts）图层采用竣工施工图、测量采集点位、正射影像图以及现场勘查记录的组合方式生成。该数据由公共工程部（DPW）技术工程人员每日开展更新与维护工作。