Description: <div style="font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;"><div><div><div><div style="overflow:auto; padding-bottom:0.375rem; max-width:100%;"><span style="font-size:1.2019rem;">Description</span></div></div></div></div></div><div style="font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;"><div><div style="margin-bottom:3rem;"><div><div style="overflow:auto; padding-bottom:0.375rem; max-width:100%;">This is a Southern California clip of the national compilation dataset of dams for the United States, including Puerto Rico and the US Virgin Islands. Updated 12/12023. This dataset feeds the National Aquatic Barrier Prioritization Tool at aquaticbarriers.org. This dataset includes large regulated dams, small dams, unregulated dams, diversion dams, farm ponds, and lowhead dams. It was compiled from multiple sources using the national inventory of dams as a baseline.</div><div style="overflow:auto; padding-bottom:0.375rem; max-width:100%;"><br /><div><span style="font-family:inherit;"><font size="3" style="font-family:inherit;"><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);">In addition to state and local datasets, national barrier datasets used in this inventory include the</span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><a href="https://nid.usace.army.mil/#/" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:Verdana, Geneva, sans-serif; box-sizing:border-box;" target="_blank">National Inventory of Dams</a><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);">,</span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><a href="https://www.usgs.gov/data/waterfalls-and-rapids-conterminous-united-states-linked-national-hydrography-datasets-v20" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:Verdana, Geneva, sans-serif; box-sizing:border-box;" target="_blank">USGS Waterfalls of the Conterminous U.S.</a><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);">, and</span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><a href="https://www.usgs.gov/data/database-stream-crossings-united-states" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:Verdana, Geneva, sans-serif; box-sizing:border-box;" target="_blank">USGS Database of Stream Crossings in the U.S.</a><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);">Barriers are snapped to aquatic networks derived from the</span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><a href="https://www.usgs.gov/core-science-systems/ngp/national-hydrography/nhdplus-high-resolution" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:Verdana, Geneva, sans-serif; box-sizing:border-box;" target="_blank">USGS High Resolution National Hydrography Dataset</a><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);">supplemented with additional information from the</span><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"> </span><a href="https://www.fws.gov/program/national-wetlands-inventory" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:Verdana, Geneva, sans-serif; box-sizing:border-box;" target="_blank">National Wetlands Inventory</a><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);">. Along with national data sources, several other regional and state efforts to collect barrier data were included in this inventory and are regularly updated within. To see a list of data sources as well as a link to submit a missing data source, visit aquaticbarriers.org</span></font></span></div><div><span style="font-family:inherit;"><font size="3" style="font-family:inherit;"><span style="font-family:Verdana, Geneva, sans-serif; color:rgb(51, 51, 51);"><br /></span></font></span></div></div><p style="margin-top:0px; margin-bottom:0rem; color:rgb(110, 110, 110);"></p></div></div></div></div><div style="font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;"><div><div><div></div></div></div></div>