NACC_Surveyed_Crossings_2026

All road related AOP protocol data, including those assessed using non-SARP protocol and those assessed with the SARP protocol as of February 2022. For more detailed information including photos and exact measurements of crossings surveyed, post 2019 visit the Volunteer AOP survey webmap. Structures at road stream crossings present possible barriers to aquatic organisms. In order to determine if these are barriers, data must be collected at each crossing to determine barrier severity. Various methods exist to collect data at barriers, and this dataset represents all of those points where anyone has ever assessed a crossing for AOP, regardless of protocol. All protocol datasets have been stripped of photos and detailed information only to reveal basic information and an aquatic passage determination.本数据集涵盖所有与道路相关的AOP（Aquatic Organism Passage，水生生物通道）协议数据，包含截至2022年2月采用非SARP协议与SARP协议完成评估的全部相关数据。如需获取更多详细信息（包括所勘测交叉点的照片与精确测量数据），请于2019年后访问志愿AOP调查网络地图。道路溪流交叉处的构筑物可能会对水生生物形成阻隔。为判定此类构筑物是否构成阻隔，需在每个交叉点收集数据以评估阻隔严重程度。当前存在多种阻隔点数据收集方法，本数据集涵盖所有曾被用于AOP评估的交叉点，无论其采用何种评估协议。所有协议数据集均已移除照片与详细信息，仅保留基础信息与水生生物通道通行判定结果。