flooding
present minnesota climate conditions
The Minnesota Department of Natural Resources has links to precipitation reports, stream flow data, and local storm reports: MN Climate Conditions.
St. Croix River and Mississippi River Levels
See the current water levels on the St. Croix River at Stillwater.
See the current water levels on the Mississippi River at Hastings.
flood insurance
Consider enrolling in FEMA’s National Flood Insurance Program (NFIP) to supplement your homeowner’s policy. A standard homeowner’s policy does not provide flood coverage and you only get disaster assistance if the President declares a disaster. Paying for flood insurance is less expensive than paying back a disaster loan. Talk to your insurance company or contact NFIP at floodsmart.gov or 1-888-379-9531.
SEPTIC SYSTEMS
If your septic system is flooded, you must stop using it until floodwaters recede and the soil has drained. If you have a pump tank, disconnect the circuit that controls the pump to avoid risk of electrical hazard. Avoid digging around the septic tank or driving heavy equipment over the drain field while the soil is water-logged. Before flooding, cover drains with a sheet and sandbag to prevent floodwaters from rising up into your home.
WELLS
Check to ensure that your well casing extends above the 100-year flood level. If flooding is imminent, disconnect the power supply for your well and install a watertight cap or cover on your well. Be prepared to have your well disinfected and tested after flood waters recede.
WET BASEMENT
Use the follow strategies to help keep your basement dry.
Gutters and downspouts: If water seeps in when it rains, install gutters and downspouts to direct water away from your home.
Window wells: Use downspout extenders to direct water away from your home and install protection around window wells to keep water out. Check your gutters and downspouts periodically to make sure they aren’t clogged by leaves or seeds.
Landscaping: If water flows downhill into your home from a driveway or the street, install landscaping to re-route the water around your home. Landscaping features could include a dry stream bed, contoured berm of soil, or a series of raingardens to capture and redirect the water. Be careful NOT to redirect water into your neighbors’ homes.
Washington Conservation District provides free site visits for Washington County residents and can provide recommendations on how to manage drainage concerns. Usually, these type of landscaping projects do not qualify for watershed district cost-share grants because they don’t provide a public water quality benefit. However, if you live uphill of a lake or stream and install a raingarden that filters water flowing downhill, you may be able to secure a small incentive grant for the project.
Sump pumps: When surficial groundwater levels are very high, groundwater will seep into basements. This happens most often in areas that are landlocked, have heavy clay soils, or are located near wetlands and lakes. The only remedy to groundwater seepage is to use a sump pump to pump water out of the basement and direct it downhill, away from your home.
Temporary protection: If you live near a lowland, wetland, lake, stream, or river, consider building temporary levees around doors and window wells to protect your home from flooding.
FLOODED LAWN and yard
Remove structures and debris such as landscaping materials, sheds, and playground equipment from flood-prone areas.
As soon as the lawn is dry (this could take several weeks), aerate it by going over it several times with a core-type aerifier. Repeat the process in early September and again the following spring. Break up aerification cores with a lawn or power rake. Overseed after aerating, or delay seeding until mid-August through mid-September. Sodding can be done throughout the growing season.
FLOODED farm FIELDS and ag buildings
Minnesota Extension offers advice for farmers: