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City of Mounds View Page 10 Local Surface Water Management Plan 435-08-135 2.7.1 MISSISSIPPI RIVER All of Mounds View’s surface runoff reaches the Mississippi River, via Rice Creek. The Mississippi River and its tributaries form the largest river system in North America, draining about 40 percent of the continental United States. Mounds View is located in the Middle Mississippi River Basin (upstream of Saint Anthony Falls) of the Upper Mississippi River (upstream of St. Louis, MO). According to the US Geological Survey, at gauging station Number 05288500, located at 95th Street in Coon Rapids, the normal elevation of the river is approximately 804.5 feet. The DNR classifies the Mississippi River as a warm water game fish resource. It is a DNR Protected Watercourse and has a varying ordinary high water elevation that generally coincides with the top of the riverbank. 2.7.2 PUBLIC WATERCOURSES There are two public watercourses identified in Mounds View: Rice Creek and Anoka/Ramsey Judicial Ditch 1. Although not identified by the DNR as a public water, Spring Creek is another valuable watercourse within the City. There is also a historic unnamed ditch in the south central portion of the City (within the Edgewood Drainage District) that has since been primarily converted to storm sewer. Rice Creek, which runs through the southeast portion of the City, is a relatively large watercourse with a drainage area of approximately 200 square miles. All of the 2,630 acres of the City of Mounds View drains to Rice Creek via various discharge points and conveyance routes through the City. According to a recent survey by DNR Fisheries, Rice Creek has two different types of fisheries. From its confluence with the Mississippi River up to the Locke Lake dam, the game fish species composition is similar to that found in the Mississippi River (catfish, smallmouth bass, walleye and northern). Above Locke Lake and upstream to where Rice Creek crosses into the City of Mounds View, game fish are limited to fingerling size walleye. Anoka/Ramsey Judicial Ditch 1 drains the southern portion of the City of Blaine within the jurisdiction of the RCWD, through the northeast corner of Mounds View, prior to exiting the City under I-35W and discharging into Rice Creek. Branch 5 of Judicial Ditch 1 crosses under Hillview Road and Greenfield Park, and ties into Judicial Ditch 1 within the northeastern portion of Mounds View. Spring Creek is located in the far southwestern corner of the City. It extends from Woodcrest Park, crossing both Silver Lake Road and Knollwood Drive before it turns to the south. At County Road H, Spring Creek enters the City of New Brighton approximately midway between Knollwood Drive and Pleasant View Drive, discharging to Rice Creek a short distance downstream, and ultimately to the Mississippi River. The entire tributary drainage area to Spring Creek at the southern Mounds View city limits is approximately 323 acres. 2.7.3 LAKES Spring Lake (DNR ID 2-71P) is located on the western border of the City, on its border with Spring Lake Park. Spring Lake is approximately 60 acres in size, with a maximum depth of approximately 18 feet. The location of this lake is identified on Figure 2.3 and Map 1 in Appendix A.