2026-03-12 CC Packet - Laserfiche WebLink

Home Browse Search

Anoka County2025 Hazard Mitigation Planz.umn.edu/AnokaHMP Neighborhoods adjacent to Coon Creek near the Medtronic campus Neighborhoods adjacent to Coon Creek between Main St. NW and Hanson Blvd. NW in Coon Rapids st Neighborhood adjacent to Coon Creek between 131 St. and Main St. NW in Andover and Coon Rapids st Neighborhood adjacent to Coon Creek between Bunker Lk Blvd NW and 131 St in Andover Neighborhood adjacent to Coon Creek between South Coon Creek Dr NW and Bunker Lk Blvd NW in Andover Neighborhood adjacent to Coon Creek between Crosstown Blvd NW and South Coon Creek Dr NW in Andover Neighborhood adjacent to Coon Creek between Hanson Blvd NW and Crosstown Blvd NW in Andover The main stem of Coon Creek which includes ditch 54 and ditch 57 from Hanson Blvd NW south to its outlet at the Mississippi River was previously excavated, ditched, and straightened for drainage purposes in the late 1800s. The increase in development and stormwater runoff since then has created unstable stream banks, water quality issues from sediment and nutrients, and flooding issues due to the lack of floodplain and storage in the contributing drainage areas. The remaining natural reaches of the stream are also undersized for the increase in stormwater runoff it receives from its urbanized drainage area. The unstable banks of the stream can slough off into the stream which can cause trees and debris to flow downstream, block drainage, and plug culverts and crossings. These situations can present major flooding risks even in small storm events when culvert crossings are unable to pass stream flow. Erosion: CCWD inspects the entire ditch system of the watershed every 5 years and keeps an active inventory of active erosion sites in the watershed. This information is used to prioritize stabilization of these sites and track the amount of sediment and other particulates released from active erosion sites to evaluate their impact on human health, safety, and welfare. Water Quality: Coon Creek, Sand Creek, Ditch 11, Ditch 58, Ditch 41, Pleasure Creek, and Springbrook Creek are each impaired for aquatic life and/or aquatic recreation due to E.coli. These impairments pose health risks to residents in Anoka County and ecosystems that impact residents in Anoka County. 3.4.2 Future Development Because Anoka County is vulnerable to a variety of natural hazards, the county government—in partnership with the state government—must make a commitment to prepare for the management of these events. Anoka County is committed to ensuring that county elected and appointed officials become informed leaders regarding community hazards so that they are better prepared to set and direct policies for emergency management and county response. As part of the vulnerability assessment conducted for the Anoka County HMP update, jurisdictions were asked to describe if there were any factors related to population growth, zoning, or development they felt have increased their community’s vulnerability to future severe weather or disaster events. Section 3 27 Hazards 36