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<br />Ramsey County | Multi-Jurisdiction Hazard Mitigation Plan 40 <br />Name Owner River Primary <br />Purpose <br />Year <br />Built <br />NID <br />Height <br />Dam <br />Type <br />Classification <br />Round Lake USFWS Rice Creek <br />tributary Water Supply 1960 10' Other, <br />Earth Low <br />Source: National Inventory of Dams, Minnesota DNR <br />3.6.3 EXTENT <br />In the U.S., a common practice among federal and state dam safety officials is to classify dams according <br />to the potential impact a dam failure or breach would have on upstream or downstream areas or <br />locations remote from the dam. Three classification levels are used: Low, Significant, and High. Table 14 <br />explains these classifications. <br />Table 14. Dam Hazard Potential Classification System <br />Dam Hazard Potential Classification System <br />Classification Summary Potential <br />Loss of Life <br />Economic, <br />Environmental, <br />and Lifeline <br />Losses <br />Low Hazard Dams assigned the Low Hazard potential <br />classification are those where failure or <br />misoperation results in no probable loss of <br />human life and low economic and/or <br />environmental losses. Losses are principally <br />limited to the owner’s property. <br />None <br />expected <br />Low; generally <br />limited to owner <br />Significant <br />Hazard <br />Dams assigned the Significant Hazard potential <br />classification are those dams where failure or <br />misoperation results in no probable loss of <br />human life but can cause economic loss, <br />environmental damage, disruption of lifeline <br />facilities, or can impact other concerns. <br />Significant Hazard potential classification dams <br />are often located in predominantly rural or <br />agricultural areas but could be located in areas <br />with population and significant infrastructure. <br />None <br />Expected <br />Yes <br />High Hazard Dams assigned the High Hazard potential <br />classification are those where failure or <br />misoperation will probably cause loss of human <br />life. <br />Probable; <br />one or more <br />expected <br />Yes (but not <br />necessary for this <br />classification) <br />Source: National Inventory of Dams <br />Any owner of a dam with a hazard potential classification of High is required to develop an emergency <br />action plan (EAP). An EAP is a formal document that identifies potential emergency conditions at a dam