Bois Brule River, Bois Brule River Watershed (LS04)
Bois Brule River, Bois Brule River Watershed (LS04)
Bois Brule River (2861800)
43.92 Miles
0 - 43.92
Natural Community
Natural communities (stream and lake natural communities) represent model results that use predicted flow and temperature based on landscape features and related assumptions. Ranges of flow and temperature associated with specific aquatic life communities (fish, macroinvertebrates) help biologists identify appropriate resource management goals. Wisconsin Natural Communities.
Cool-Cold Mainstem, Cool-Warm Mainstem, Large River, Coldwater
Year Last Monitored
This is the most recent date of monitoring data stored in SWIMS. Additional surveys for fish and habitat may be available subsequent to this date.
2024
Good
 
Douglas
Trout Water 
Trout Waters are represented by Class I, Class II or Class III waters. These classes have specific ecological characteristics and management actions associated with them. For more information regarding Trout Classifications, see the Fisheries Trout Class Webpages.
Yes
Outstanding or Exceptional 
Wisconsin has designated many of the state's highest quality waters as Outstanding Resource Waters (ORWs) or Exceptional Resource Waters (ERWs). Waters designated as ORW or ERW are surface waters which provide outstanding recreational opportunities, support valuable fisheries and wildlife habitat, have good water quality, and are not significantly impacted by human activities. ORW and ERW status identifies waters that the State of Wisconsin has determined warrant additional protection from the effects of pollution. These designations are intended to meet federal Clean Water Act obligations requiring Wisconsin to adopt an 'antidegradation' policy that is designed to prevent any lowering of water quality - especially in those waters having significant ecological or cultural value.
Yes
Impaired Water 
A water is polluted or 'impaired' if it does not support full use by humans, wildlife, fish and other aquatic life and it is shown that one or more of the pollutant criteria are not met.
No

Fish and Aquatic Life

Current Use
The use the water currently supports. This is not a designation or classification; it is based on the current condition of the water. Information in this column is not designed for, and should not be used for, regulatory purposes.
Supported Aquatic Life
Waters that support fish and aquatic life communities (healthy biological communities).
Attainable Use
The use that the investigator believes the water could achieve through managing "controllable" sources. Beaver dams, hydroelectric dams, low gradient streams, and naturally occurring low flows are generally not considered controllable. The attainable use may be the same as the current use or it may be higher.
Cold (Class I Trout)
Streams supporting a cold water sport fishery, or serving as a spawning area for salmonids and other cold water fish species through natural reproduction. Representative aquatic life communities, associated with these waters, generally require cold temperatures and concentrations of dissolved oxygen that remain above 6 mg/L. Since these waters are capable of supporting natural reproduction, a minimum dissolved oxygen concentration of 7 mg/L is required during times of active spawning and support of early life stages of newly-hatched fish.
Designated Use
This is the water classification legally recognized by NR102 and NR104, Wis. Adm. Code. The classification determines water quality criteria and effluent limits. Waters obtain designated uses through classification procedures.
Cold
Streams capable of supporting a cold water sport fishery, or serving as a spawning area for salmonids and other cold water fish species. Representative aquatic life communities, associated with these waters, generally require cold temperatures and concentrations of dissolved oxygen that remain above 6 mg/L. Since these waters are capable of supporting natural reproduction, a minimum dissolved oxygen concentration of 7 mg/L is required during times of active spawning and support of early life stages of newly-hatched fish.

Overview

The Bois Brule River has a renowned fishery. The original fishery contained stream-resident and migratory (coaster) strains of brook trout. The migratory strain of brook trout was extirpated by the early 1900s. The river now supports, in addition to resident brook trout, both resident and migratory strains of brown trout and migratory strains of rainbow trout, coho and chinook salmon (Pratt 1996). Migratory rainbow trout spawning runs occur in spring and fall, while other species migrate from the lake in summer and fall.

Historically, the Bois Brule, along with the Bad River, produced about 85 percent of the sea lamprey captured at lamprey weirs. The influence of this exotic species is blamed in part for the crash of the Lake Superior trout fishery in the 1950s and 1960s. The lamprey are estimated to account for 375,000 pounds of the estimated 600,000 lake trout taken from Lake Superior annually (Fisheries Management). In 1985, a combination sea lamprey barrier/fishway was installed about six miles upstream from the mouth, effectively eliminating lamprey spawning above that point and preventing the need for electrical or chemical controls. The barrier has a sub-surface observation window that has helped managers collect a great deal of data. More than 7,000 lamprey were trapped and removed during the 1986 spawning season. By 1995, lamprey catches at the Brule barrier had steeply declined.

Under the Lake Superior Binational Program, the Brule River became a demonstration site for best-management practices to control runoff. WDNR and the Douglas County Land Conservation Department received grants that allowed the demonstration of construction and soil stabilization techniques to reduce roadside ditch erosion and protect stream habitat. Natural drainage patterns were restored to reduce dramatic erosion and highway maintenance problems that had plagued the County Highway FF crossing for years. The project expanded a pond managed for wildlife habitat and protected valuable aquatic habitat in the Brule.

An accelerated soils survey for the Brule River State Forest has assisted forest managers in the development of a state forest master plan and is a tool being used as part of the National Hierarchy of Ecological Units for determining the potential natural vegetation that could be supported if the forest was allowed to progress through natural succession to maturity.

High levels of bacteria in the river near the community of Brule from failing septic systems led to the formation of the Brule Sanitary District No. 1, which discharges to groundwater in the watershed.

During survey work conducted as part of the coastal wetlands evaluation, no rare species of macroinvertebrate were found and the overall taxa richness was moderate (5-24 species) (Epstein 1997). The survey noted some turbidity and filamentous algae at the survey site.

From: Turville-Heitz, Meg. 1999. Lake Superior Basin Water Quality Management Plan. Wisconsin Department of Natural Resources, Madison, WI.

Date  1999

Author   Aquatic Biologist

Bois Brule River, Bois Brule River Watershed (LS04) Fish and Aquatic LifeBois Brule River, Bois Brule River Watershed (LS04) RecreationBois Brule River, Bois Brule River Watershed (LS04) Fish Consumption

General Condition

Bois Brule River was assessed during the 2018 listing cycle; new total phosphorus and chloride sample data were clearly below the 2018 WisCALM listing thresholds for the Fish and Aquatic Life use. This water was meeting this designated use and was not considered impaired.

Date  2017

Author  Ashley Beranek

Condition

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.

Reports

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

Watershed Characteristics

Bois Brule River is located in the Bois Brule River watershed which is 199.64 miĀ². Land use in the watershed is primarily forest (72.30%), wetland (22.10%) and a mix of grassland (3.40%) and other uses (2.30%). This watershed has 220.94 stream miles, 3,539.94 lake acres and 18,373.66 wetland acres.

Nonpoint Source Characteristics

This watershed is ranked Not Ranked for runoff impacts on streams, Not Available 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.

Natural Community

Bois Brule River is considered a Cool-Cold Mainstem, Cool-Warm Mainstem, Large River, Coldwater under the state's Natural Community Determinations.

Natural communities (stream and lake natural communities) represent model results and DNR staff valiation processes that confirm or update predicted conditions based on flow and temperature modeling from historic and current landscape features and related variables. Predicated flow and temperatures for waters are associated predicated fish assemblages (communities). Biologists evaluate the model results against current survey data to determine if the modeled results are corect and whether biological indicators show water quaity degradation. This analysis is a core component of the state's resource management framework. Wisconsin's Riverine Natural Communities.

Cool (Cold-Transition) Mainstem streams are moderate-to-large but still wadeable perennial streams with cold to cool summer temperatures. Coldwater fishes are common to uncommon, transitional fishes are abundant to common, and warm water fishes are uncommon to absent. Headwater species are common to absent, mainstem species are abundant to common, and river species are common to absent.