Lincoln
No
No
No
Fish and Aquatic Life
Overview
, in the New Wood River and Noisy and Pine Creeks Watersheds, is a 207.68 acre lake that falls in Lincoln County. This lake is managed for fishing and swimming and is currently not considered impaired.
Date 2011
Author Aquatic Biologist
Historical Description
Source: 1982, Surface Water Resources of Lincoln County Grandmother Flowage, T33N, R6E, Sec. 3 Surface Acres = 119.3, Maximum Depth = 22 feet, Secchi Disc = 5 feet.
A soft water drainage lake (impoundment) on the Wisconsin River having slightly acid, light brown water of low transparency. The shoreline is 90 percent upland hardwoods and 10 percent coniferous bog wetland. The littoral zone is 50 percent sand, 30 percent muck, 15 percent gravel, and 5 percent rubble. The dam, owned by Owen-Illinois Glass Company, maintains a head of 19 feet. Fish species include northern pike, walleye, bluegill, black crappie, rock bass, pumpkinseed, yellow perch, black bullhead, yellow bullhead, white sucker, shorthead redhorse, common shiner and trout perch. Conditions suggest use by spring and fall migratory waterfowl. A poorly developed boat ramp provides public access without parking from State Highway 107. Public access of the navigable water type is also available via the Wisconsin River. There are 5 dwellings on the shoreline.
Date 1982
Author Surface Water Inventory Of Wisconsin
Management Goals
Wisconsin's Water Quality Standards provide qualitative and quantitative goals for waters that are protective of Fishable, Swimmable conditions [Learn more]. Waters that do not meet water quality standards are considered impaired and restoration actions are planned and carried out until the water is once again fishable and swimmable
Management goals can include creation or implementation of a Total Maximum Daily Load analysis, a Nine Key Element Plan, or other restoration work, education and outreach and more. If specific recommendations exist for this water, they will be displayed below online.
Monitoring
Monitoring the condition of a river, stream, or lake includes gathering physical, chemical, biological, and habitat data. Comprehensive studies often gather all these parameters in great detail, while lighter assessment events will involve sampling physical, chemical and biological data such as macroinvertebrates. Aquatic macroinvertebrates and fish communities integrate watershed or catchment condition, providing great insight into overall ecosystem health. Chemical and habitat parameters tell researchers more about human induced problems including contaminated runoff, point source dischargers, or habitat issues that foster or limit the potential of aquatic communities to thrive in a given area. Wisconsin's Water Monitoring Strategy was recenty updated.
Grants and Management Projects
Monitoring Projects
| WBIC | Official Waterbody Name | Station ID | Station Name | Earliest Fieldwork Date | Latest Fieldwork Date | View Station | View Data |
|---|
| 1503000 | Grandmother Flowage | 353097 | Grandmother Flowage - Deep Hole | 8/8/1979 | 8/20/2003 | Map | Data |
| 1503000 | Grandmother Flowage | 10012365 | Grandmother Flowage | 8/20/2003 | 9/30/2017 | Map | Data |
| 1503000 | Grandmother Flowage | 353014 | Wisconsin River - Above Grandmother Dam | 8/6/1975 | 10/22/1997 | Map | Data |
| 1179900 | Wisconsin River | 353014 | Wisconsin River - Above Grandmother Dam | 8/6/1975 | 10/22/1997 | Map | Data |
| 1503000 | Grandmother Flowage | 10021068 | Wisconsin River Above Grandmother Dam Off Of Hwy E | 8/14/1998 | 8/14/1998 | Map | Data |
| 1503000 | Grandmother Flowage | 10020387 | Grandmother Flowage -- Access | 6/25/2022 | 6/13/2024 | Map | Data |
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Watershed Characteristics
Grandmother Flowage is located in the New Wood River watershed which is 115.73 mi². Land use in the watershed is primarily forest (64.20%), wetland (33.70%) and a mix of open (1%) and other uses (1.20%). This watershed has 150.24 stream miles, 267.57 lake acres and 17,302.71 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Low for runoff impacts on streams, Medium for runoff impacts on lakes and Low for runoff impacts on groundwater and therefore has an overall rank of Low. This value can be used in ranking the watershed or individual waterbodies for grant funding under state and county programs.However, all waters are affected by diffuse pollutant sources regardless of initial water quality. Applications for specific runoff projects under state or county grant programs may be pursued. For more information, go to surface water program grants.