{"id":17707,"date":"2021-08-05t15:15:30","date_gmt":"2021-08-05t20:15:30","guid":{"rendered":"\/\/www.dicovercards.com\/?post_type=snyder-projects&p=17707"},"modified":"2023-07-10t14:28:50","modified_gmt":"2023-07-10t19:28:50","slug":"manmade-stormwater-wetland-benefits-fourmile-creek-water-quality","status":"publish","type":"snyder-projects","link":"\/\/www.dicovercards.com\/projects\/manmade-stormwater-wetland-benefits-fourmile-creek-water-quality\/","title":{"rendered":"manmade stormwater wetland benefits fourmile creek water quality"},"content":{"rendered":"

stormwater wetland system as treatment option<\/strong><\/span><\/h2>\n

across the country, effective stormwater management<\/a> is vital for building\u00a0urban resiliency\u00a0and meeting stringent water quality standards. to fulfill this objective, ongoing management efforts often focus on holding water in the upland areas of a watershed through tried and true practices such as regional detention basins and wetlands<\/a>. although these practices have been used in\u00a0stormwater management\u00a0for decades, their design was originally driven as a simple manner of conveyance.<\/p>\n

\"fourmile<\/a>

fourmile creek watershed encompasses approximately 76.642 acres, covering 120 square miles primarily in polk county.<\/p><\/div>\n

today, stormwater wetland systems are being created as multi-functional infrastructure components that help regulate flooding, improve water quality, heighten biodiversity, and produce natural amenities for communities. these manmade systems are primarily designed for the purpose of treating stormwater runoff by combining the functions of natural wetlands with the added capacity for temporary water storage.<\/p>\n

polk county conservation followed this trend with their decision to build a stormwater wetland and sediment basin forebay to treat runoff from 25-acres of mixed residential, commercial<\/a>, and agricultural land. previously, this land area directly drained into the environmentally sensitive fourmile creek. the snyder & associates team was brought on board to provide their expert environmental<\/a> and stormwater design services.<\/p>\n

proper 2022世界杯32强预选赛 and design impacts stormwater improvements<\/strong><\/span><\/h2>\n

the\u00a0lower fourmile creek\u00a0area is currently being developed into a greenway<\/a> and hosts a regional\u00a0bike trail\u00a0with plans to feature restored woodlands and\u00a0pocket parks<\/a>\u00a0alongside the stormwater wetland. without precise construction 2022世界杯32强预选赛 , equipment, sequencing, and techniques, however, even a properly designed project is likely to fall short of providing maximum benefits.<\/p>\n

to ensure it would function as intended, our team ran detailed\u00a0hydrologic and hydraulic modeling<\/a>\u00a0to accurately size the wetland. this process confirmed it would\u00a0effectively treat runoff<\/a>\u00a0from small, frequent storm events while having the capability to pass large storms without causing damage to the\u00a0wetland or the adjacent trail. though the site had extreme parameter limitations, our design team achieved a successful stormwater wetland design through persistence and detailed 2022世界杯32强预选赛 .<\/p>\n

\"wetland<\/a>

to reduce stream velocity, meanders were added to the stream throughout the wetland.<\/p><\/div>\n

as designed, the project diverts stormwater from an adjacent roadway into a forebay basin pool with channel meanders added between them to increase the travel length and provide an extended contact period. this allows the wetland system time to serve its purpose of slowing flows and\u00a0reducing contaminants<\/a>. once detained, the stormwater enters a mixture of marsh, shallow-water, and deep-water areas that enhance nutrient removal and provide aquatic habitat for various species.<\/p>\n

fourmile creek stormwater wetland qualifies for idals grant<\/strong><\/span><\/h2>\n

to be approved, designs must match\u00a0established requirements\u00a0and meet stakeholder\u2019s criteria while still remaining within the given budget.\u00a0funding is often a major roadblock to the implementation of innovative and efficient stormwater infrastructure around the country. our team worked hard to match this water resources project with available funding sources<\/a>.<\/p>\n

traditional 世界杯足球比赛预选赛 funding and financing methods for stormwater infrastructure provide limited options to address current problems. at the same time, views on stormwater are changing, with increased recognition of\u00a0urban flooding<\/a>\u00a0and the\u00a0need for infrastructure to properly manage runoff. prompted by the\u00a02008 gulf hypoxia action plan<\/a>, iowa took proactive steps to protect and improve its\u00a0water quality<\/a>\u00a0by creating an additional funding source called the iowa water quality initiative. this initiative aims to fund water quality projects that can serve as examples and best practices for cities and individuals.<\/p>\n

as one of the multiple cities awarded a portion of the state grant, des moines allocated a percentage of the funds toward the fourmile stormwater wetland project. with this additional funding, the city and the iowa department of agriculture and land stewardship (idals) split project costs, making the overall cost more feasible.<\/p>\n

stormwater wetland adds to larger fourmile projects<\/strong><\/span><\/h2>\n

this project comes as an addition in support of the comprehensive\u00a0fourmile watershed management plan. the initiative helps outline a series of watershed goals to reduce flooding and improve water quality across the watershed\u2019s 76,600 acres. as this project continues to evolve, new practices are added and retrofitted, helping to enhance water quality across the state of iowa.<\/p>\n

our goal is always to deliver a project that makes a positive impact \u2014 now and for future generations. after monitoring this stormwater wetland system since completion and recording results indicating an overall improvement in water quality, we\u2019re proud to say that for this project, that goal was completed.<\/p>\n","protected":false},"excerpt":{"rendered":"

stormwater wetland system as treatment option across the country, effective stormwater management is vital for building\u00a0urban resiliency\u00a0and meeting stringent water quality standards. to fulfill this objective, ongoing management efforts often focus on holding water in the upland areas of a watershed through tried and true practices such as regional detention basins and wetlands. although these […]<\/p>\n","protected":false},"featured_media":17723,"template":"","categories":[30],"project_categories":[39,48],"client_type":[],"location":[],"class_list":["post-17707","snyder-projects","type-snyder-projects","status-publish","has-post-thumbnail","hentry","category-water","project_categories-environmental","project_categories-stormwater"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\n\t\t\n