Fish and Aquatic Life
This small steep stream drains an unglaciated valley and serves as a tributary to Dougherty Creek. The stream is valuable because it provides a source of cold water to Dougherty Creek (SurfaceWater Resources of Green Co, 1980). Heavily pastured, it suffers from streambank erosion; however the steep gradient maintains a sandy bottom with small amounts of gravel and cobble. Prairie Brook is a Class III trout stream whose potential is somewhat limited by flow. In (what year?) the Prairie Brook was added to the state’s list of impaired waters. The department and the Green County Land and Water Conservation Department should work with landowners to install best management practices and enforce NR151 to improve the riparian corridor of the stream. The stream was stocked with brook trout in 2005. It has not been monitored recently.
Author James Amrhein
This two-mile long creek originates in western Green County and flows westward to Dougherty Creek. Prairie Brook Creek runs primarily through pasture and there is a considerable amount of bank erosion. However, the steep gradient of the stream maintains a sandy bottom with small amounts of gravel and cobble, as well as "good" width:depth ratio (8:1). A macroinvertebrate assessment in 1990 described the water quality of this stream as "very good" with slight organic pollution (HBI = 3.636). Prairie Brook is currently classified as Class III trout stream (no evidence of natural reproduction) but is potentially a Class II. Fish monitoring conducted in 2002 recovered only two species (creek chub and brook stickleback) and a cold water index of biotic integrity was calculated as "poor". Habitat is very limited and fencing to prevent over pasturing would help improve the stream corridor.
Author Aquatic Biologist
Draining an unglaciated valley, this small, steep trout stream flows westward to Dougherty Creek. Running primarily through pasture, it experiences considerable bank erosion, howev,er the steep gradient maintains a sandy bottom with small amounts of gravel and rubble. The water is usually clear. Prairie Brook is fed by runoff, one spring-fed tributary, and two springs, one of which has been impounded for a private fishing pond. This stream is valuable because it provides a source of clear, cold water to Dougherty Creek, another trout
All of Prairie Brook is managed for brown trout, with the lower half being Class II and the remainder Class I] Small flow prevents the establishment of a sustained trout fishery and there is almost a complete annual harvest of trout by fishermen. Therefnre, fnrage fish are generally much more abundant than trout. Wildlife values are very low because of the stream's small size and a deficiency of adjacent wetlands. Public access and frontage consists of two town road crossings.
Fish Species: Brown trout, common shiner, redbelly dace unspecified, creek chub, white sucker, brook stickleback. Euddledock Hollow
Bush, D.M., R. Cornelius, D. Engle, and C.L. Brynildson. 1980. Lake and Stream Classification Project. Surface Water Resources of Green County, 2nd Edition. Wisconsin Department of Natural Resources, Madison, Wisconsin.
Surface Acres = 0.7, Length = 2.0 Miles, Gradient = 70 ft./mi., Base Discharge = 2.7 cu. ft./sec.
Author Surface Water Inventory Of Wisconsin
Wisconsin has over 84,000 miles of streams, 15,000 lakes and milllions of acres of wetlands. Assessing the condition of this vast amount of water is challenging. The state's water monitoring program uses a media-based, cross-program approach to analyze water condition. An updated monitoring strategy (2015-2020) is now available. Compliance with Clean Water Act fishable, swimmable standards are located in the Executive Summary of Water Condition in 2018. See also the 'monitoring and projects' tab.
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 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
|WBIC||Official Waterbody Name||Station ID||Station Name||Earliest Fieldwork Date||Latest Fieldwork Date||View Station||View Data|
|901500||Prairie Brook||10009526||Prairie Brook Upstream West Puddledock Bridge||10/31/1990||10/31/1990||Map||Data|
|901500||Prairie Brook||233219||Prairie Brook - Private Dr Sec 21||Map||Data|
Prairie Brook is located in the Lower East Branch Pecatonica Rivers watershed which is 144.80 mi². Land use in the watershed is primarily grassland (44.90%), agricultural (35.10%) and a mix of forest (16%) and other uses (3.90%). This watershed has 370.96 stream miles, 107.68 lake acres and 2,029.49 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Available for runoff impacts on streams, Not Available for runoff impacts on lakes and High for runoff impacts on groundwater and therefore has an overall rank of High. This value can be used in ranking the watershed or individual waterbodies for grant funding under state and county programs.This water is ranked High Stream for individual Rivers based on runoff problems and the likelihood of success from project implementation.