KEARNEY STORMWATER MANAGEMENT PLAN
Cloudy winter days make the snow melt faster, says a study from the University of Utah. Snow is designed to stay cold in three ways: by deflecting the sun’s heat with it’s bright white color and crystalline structure, the bright white reflecting heat back at night, and sublimation, evaporating from snow to vapor, similar to the way sweat evaporates from our skin to keep us cool.
Cloudy humid days, however prevents snow from deflecting, reflecting and sublimating warming the snow. That is why a few humid days with temperatures hovering around the freezing point create large melt events and even minor flooding.
Do your own experiment by watching snow that remains in shadows even on warm sunny days. Then watch what happens to that same snow during gray days and nights — quickly, though, before it’s all gone.
Trees play a critical role in managing our city’s stormwater runoff. Enjoy this interactive poster from the Arbor Day Foundation highlighting the role trees play in urban stormwater management.
Permeable pavement allows water to pass through the surface into the ground generating more groundwater recharge, faster melting of ice and snow, and decreasing the amount of water runoff from a property. Porous concrete, porous asphalt, or interlocking pavers are also good for trees whose roots can access the air and water that flow through the pavers.
Photos: (Top) Demonstration of porous concrete. (Bottom) Water runoff comparison of permeable asphalt and standard concrete.
This web site links to an EPA homeowner’s guide to healthy
habits for clean water that provides tips for better vehicle and
garage care, lawn and garden techniques, home improvement, pet
care, and more.
The following is Part II of a three part series focusing on the City of Scottsbluff’s 319 grant projects. These projects are designed to reduce impervious cover in parking lots, filtering and infiltrating stormwater runoff. This article will go over challenges and lessons learned from the projects. For an overview of the projects, see Part I.
In our last article, we went over the process of removing concrete and installing landscaping to create green areas throughout our downtown parking lots. There are several factors that, when combined, make it extremely difficult for a landscape to be successful in an urban environment. The following is a list of those challenges, along with a few of the lessons that we have learned so far. Over time, we will be continuing to observe and experiment with these landscapes to determine the best ways to make them successful. Continue reading Greening Up the Urban Environment- Part II
The following is Part I of a three part series focusing on the City of Scottsbluff’s 319 grant projects. These projects are designed to reduce impervious cover in parking lots, filtering and infiltrating stormwater runoff.
In 2014, the City of Scottsbluff was awarded $40,000 through the Nebraska Department of Environmental Quality’s 319 grant program. The purpose of the grant was to allow the City to install demonstration projects that would promote better stormwater management throughout the City. Through this project, the City was able to remove over 9,600 square feet of concrete throughout several parking lots and replace it with landscaping. In addition, some of the remaining concrete in the parking lots were sloped so as to allow runoff from the concrete to be captured by the landscaped areas. Continue reading Greening Up The Urban Environment- Part I