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2024 Hennepin County All -Jurisdiction Hazard Mitigation Plan <br />Volume 2 — Hazard Inventory <br />Late May through June 2014 - repeated/persistent heavy rainfall events <br />A persistently wet pattern punctuated by <br />numerous heavy rainfall events during June <br />2014 led to significant flooding and <br />estimates of approximately $12 million in <br />damage throughout Hennepin County. The <br />greatest impacts tended to be focused near <br />water bodies and low-lying areas. <br />Numerous stations in Minnesota reported <br />record monthly rainfall for June. <br />May 31- June 2: 2-4 inches of rainfall was <br />common over the county, with 4.3" <br />reported at Flying Cloud. This was part of a <br />nearly statewide heavy rainfall event. Lake <br />Minnetonka rose to its highest levels in 109 <br />years following this event. <br />June 6-8: A scattered rainfall event, with up <br />to 2 inches in western Hennepin County, <br />and an isolated 3-inch report near <br />Independence. <br />June 14-16: 2-3 inches throughout the county. Levels began rising rapidly along many waterways. <br />June 18: Isolated reports of up to 1 inch in association with a major event concentrated over <br />southern MN, and in advance of the more significant event on the following day. <br />June 19: Major, long -duration intense rainfall event, with waves of heavy precipitation throughout <br />the day. Flooding became common and widespread. 3-5 inches were common throughout the <br />county, with 4.13 reported at MSP—the heaviest daily total since October 2005. 5.47" was <br />reported by CoCoRaHS in Eden Prairie. Seven-day rainfall amounts of 4-8 inches were common <br />across the county, with even more to the south and west. <br />Municipalities, school districts, and other public interests within Hennepin County reported losses <br />and expenses more than $12 million USD (2014). The following list is not exhaustive, but rather <br />representative of the scale and impact of damage from the excessive rainfall. <br />• Bloomington, $265-270k: parkland damage; destruction of warming house <br />• Eden Prairie, $360-370k: pipe ruptures damage to Duck Lake Trail, Eden Prairie Road, <br />recreational trails, sewers, and banks of Riley Creek <br />• Golden Valley, $90-95k: unspecified damages to roads, sewers, culverts <br />• Greenfield, $20-25k: roads, sewers <br />• Hennepin County Sheriff's Office, $26k: water patrol docks and one boat damaged. <br />• Hopkins School District, $5k: washouts at High School, West Jr. High, Gatewood <br />Elementary, and Eisenhower <br />123 <br />