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Yard Drainage & Flooding
Your yard plays an important role in protecting your home from flooding. A properly graded yard can minimize minor drainage problems and prevent more serious flooding conditions.
In general, a properly graded yard will have some or all of the following characteristics:
- Ground sloping away from the house - The ground surrounding your home should be graded away from your house’s foundation to ensure that stormwater flows away from the house and not towards it.
- Pavement sloping away from the house - Driveways, sidewalks and patios should be graded away from your house’s foundation to ensure that the stormwater flows away from the house and not towards it.
- Drainage path towards the city’s Stormwater Management System - Stormwater runoff from your yard should have an unobstructed path towards the City’s system. Many residential properties have swales in the side and rear yards which carry water towards inlets within the yard, a neighboring yard or the street. Some properties are graded such that the stormwater can flow directly into a creek, ditch or basin.
Yard grading often changes over time due to both natural and man-made causes. The following situations can impact yard drainage by changing the grading or obstructing the intended stormwater drainage path.
Natural Changes
- Ground Settlement - The ground surrounding your home, particularly the area close to the house’s foundation, may settle overtime. This could cause the ground or any pavements to slope and direct stormwater towards your home Settlement could also result in isolated low spots throughout your yard where water may collect.
- Erosion - Heavy rainfall or sump pump and downspout discharge could cause soil erosion resulting in isolated low spots where water may collect.
Man-Made Changes
- Landscaping - The installation of landscaping, including planting beds, berms and retaining walls, is the most common man-made change to yard grading and drainage. All of these activities could change the yard grading and potentially obstruct the intended path for drainage of stormwater from within the yard and from adjacent yards.
- Home and Yard Improvements - Many common home and yard improvements could change yard grading and potentially create obstructions to the intended stormwater drainage path. Examples of common improvements that could impact yard grading and drainage include:
- Fences
- House Additions
- Patios or Decks
- Pools
- Sand Boxes or Swing Sets
- Sheds or Gazebos
Know Your Yard
Homeowners should know and understand how stormwater drains within their yard and if their yard is intended to drain onto or through a neighbor’s yard or if adjacent yards are intended to drain towards their yard. Homeowners should also know what features of the city’s Stormwater Management System are present on their property.
Key features, such as storm sewers, overflow routes and basins, are typically located within dedicated stormwater management easements. The property’s plat is a good place to check if any of these easements have been dedicated on the property.
Consider Stormwater When Making Improvements
When planning a home or yard improvement project, consider how the grading of your yard and the drainage of stormwater may be impacted not only for your yard, but for your neighbors’ yards as well. Obtain any required permits and be careful not to alter the grading or create obstructions.
Keep it Clear
Ponding of stormwater within a yard often occurs due to clogged storm sewer inlets. If there is an inlet in your yard, please keep this drain clear of all obstructions including, leaves, grass and debris. Debris at storm sewer inlets also build-up after a storm event, which is a good time to check the inlet to make sure that the system will work well in the next storm.
It is also important to never dump any debris, including but not limited to landscape waste, garbage or chemicals into a storm sewer inlet. If you cannot clear the debris yourself, please call 262-473-0560 to report the location.
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Brad Marquardt
Department of Public Works DirectorPhone: 262-473-0139
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Alison Stoll
Public Works Administrative AssistantPhone: 262-473-0560
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Public Works
Hours
Monday - Friday
7:00 am - 3:30 pm
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Brian Neumeister
Streets, Parks & Forestry SuperintendentPhone: 262-473-0560
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Streets, Parks & Forestry
Fax: 262-473-0579
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Jim Bergner
Water Utility SuperintendentPhone: 262-473-0560
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Water Utility
Fax: 262-222-5907
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Tim Reel
Wastewater Utility SuperintendentPhone: 262-473-0560