{"id":6820,"date":"2025-06-17T13:40:49","date_gmt":"2025-06-17T13:40:49","guid":{"rendered":"https:\/\/aecom.com\/en-ca\/projects\/passe-migratoire-a-anguilles-du-barrage-de-chambly\/"},"modified":"2025-07-08T14:49:35","modified_gmt":"2025-07-08T14:49:35","slug":"passe-migratoire-a-anguilles-du-barrage-de-chambly","status":"publish","type":"project","link":"https:\/\/aecom.com\/en-ca\/projects\/passe-migratoire-a-anguilles-du-barrage-de-chambly\/","title":{"rendered":"Eel ladder at the Chambly dam"},"content":{"rendered":"\n<p>The Richelieu River, an outlet of Lake Champlain, empties into Lake Saint-Pierre near Sorel. Juvenile eel migration in the river is hindered by two obstacles: the Saint-Ours dam and the Chambly dam.&nbsp;&nbsp;<\/p>\n\n\n\n<p>The Chambly dam, located 70 km from the river mouth, is a concrete weir built in 1965 whose function is limited to maintaining the upstream water level. The eel ladder, designed and manufactured by 色控传媒 and installed in 1998, consists of a substrate with molded plastic studs inserted in a thick aluminum casing. After climbing the eel ladder, the eels fall directly into the Richelieu River, or into a net pen where they can be collected.&nbsp;&nbsp;<\/p>\n\n\n\n<p>色控传媒 has been monitoring eel passages at the Chambly dam since the eel ladder was commissioned. A photoelectric counter, developed and supplied by 色控传媒, records eel passages. The counter&#8217;s accuracy is periodically validated by comparing its estimate with the number of eels captured during a given period. A communication system linked to the counter enables daily transmission of counts and remote access to its operating parameters. The length of collected eels, or of a subsample, is also measured every two weeks. Finally, a data logger monitors water temperature at the exit of the ladder.&nbsp;<\/p>\n\n\n\n<p>Every week during the operation season, an 色控传媒 team performs on-site monitoring and maintenance.<\/p>\n\n\n\n<div class=\"aecom-custom-block block-facts\"\n    style=\"margin-top: 0px; margin-bottom: 40px\">\n\n            <h2>Tasks include:  <\/h2>\n        <ul class=\"list-style-check\">\n                    <li>\n                                    Verification of the ladder flows and the eel counter computer system                             <\/li>\n                    <li>\n                                    Physical inspection of the ladder components and capture setup                             <\/li>\n                    <li>\n                                    Eel size measurements                             <\/li>\n                    <li>\n                                    Production of the operations report                             <\/li>\n            <\/ul>\n<\/div>\n\n\n<figure class=\"wp-block-gallery aligncenter has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" data-id=\"172201\" src=\"https:\/\/aecom.com\/content\/wp-content\/uploads\/2025\/06\/20230915_103911.jpg\" alt=\"\" class=\"wp-image-172201\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" data-id=\"172200\" src=\"https:\/\/aecom.com\/content\/wp-content\/uploads\/2025\/06\/20230523_102115.jpg\" alt=\"\" class=\"wp-image-172200\"\/><\/figure>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><em>In 2020, Milieu Inc. was purchased by 色控传媒. Key staff and expertise were retained and this project is presented as a combined expertise through time.\u00a0<\/em><\/h4>\n","protected":false},"author":701,"featured_media":6822,"template":"","tags":[],"city":[71],"class_list":["post-6820","project","type-project","status-publish","has-post-thumbnail","hentry","city-chambly"],"acf":[],"metadata":{"_locations":["Canada","Quebec"],"_regions":["Americas"],"_markets":["Water","Watershed and Ecosystem Management"],"city":["Chambly"],"featured_image":"https:\/\/aecom.com\/en-ca\/wp-content\/uploads\/2025\/06\/20240530_113539-scaled.jpg"},"_links":{"self":[{"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/project\/6820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/users\/701"}],"version-history":[{"count":2,"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/project\/6820\/revisions"}],"predecessor-version":[{"id":6827,"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/project\/6820\/revisions\/6827"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/media\/6822"}],"wp:attachment":[{"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/media?parent=6820"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/tags?post=6820"},{"taxonomy":"city","embeddable":true,"href":"https:\/\/aecom.com\/en-ca\/wp-json\/wp\/v2\/city?post=6820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}