1.0https://www.americanrivers.orgAmerican Rivershttps://www.americanrivers.org/author/american-rivers/rich600338<blockquote class="wp-embedded-content" data-secret="qbKr4XUvzY"><a href="https://www.americanrivers.org/road-stream-crossing-policy-and-design-resources/">Road-Stream Crossing Policy and Design Resources</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.americanrivers.org/road-stream-crossing-policy-and-design-resources/embed/#?secret=qbKr4XUvzY" width="600" height="338" title="“Road-Stream Crossing Policy and Design Resources” — " data-secret="qbKr4XUvzY" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> https://www.americanrivers.org/wp-content/uploads/2019/10/GRandIndianaRailroadCulvert-1-1-scaled.jpg25601237Stream crossings, where roads and railroads cross rivers and streams, are frequently unseen barriers to the movement of fish and other species. The most common culprits are culverts, pipes that serve as conduits for rivers under roads and railroads. Culverts often become barriers because they are perched above the riverbed, or they have flow that […]