Big Crooked Lake, Bear River Watershed (UC15)
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Big Crooked Lake, Bear River Watershed (UC15)
Big Crooked Lake (2321400)
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394.26 Acres
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.
Two-Story
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.
2021
Excellent
 
Vilas
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.
No
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.
No
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.
Two-Story
Shallow headwater lake describes the depth and location of the lake in a watershed. These variables affect the lakes response to watershed variables.
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.
Default FAL
Fish and Aquatic Life - Default Waters do not have a specific use designation subcategory but are considered fishable, swimmable waters.
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.
Default FAL
Fish and Aquatic Life - Default Waters do not have a specific use designation subcategory but are considered fishable, swimmable waters.

Overview

Big Crooked Lake, in the Bear River Watershed, is a 394.25 acre lake that falls in Vilas County. This lake is managed for fishing and swimming and is currently not considered impaired.

Date  2011

Author   Aquatic Biologist

Historical Description

Source: 1963, Surface Water Resources of Vilas County Crooked (Big) Lake, T-41-N, R-5-E, Section 15,

Big Crooked Lake is a drainage lake with very soft water. It has slightly alkaline clear water of very high transparency. Sand is the principal bottom material. The inlet is small, but the outlet is considered to be navigable. Bass and muskellunge are the principal fish species present iii the lake. Walleyes are also present as are a variety of pan fish. Despite the excellent aesthetic quality and the fine multiple use potential of this lake, there exists no public access other than navigable water at the present time. In addition, there are no public use facilities of any kind. There is an extensive private resort or estate which controls most of the interest on the lake. As a result of the limited ownership, the lake remains in a semi-wilderness condition.

Area = 383 Surface Acres, Maximum Depth = 50 feet

Date  1963

Author   Surface Water Inventory Of Wisconsin

Big Crooked Lake, Bear River Watershed (UC15) Fish and Aquatic LifeBig Crooked Lake, Bear River Watershed (UC15) RecreationBig Crooked Lake, Bear River Watershed (UC15) Fish Consumption

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

Two-Story Fishery Lake List 2021 Revision Notes
Wisconsin's Two-Story Fishery Lake List 2021 Revision
2018 List of Healthy (Category 2) Waters
Wisconsin's Two-Story Fishery Lake List 2018 Revision
Lake Bathymetry Map for Big Crooked Lake

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

Project Name (Click for Details)Year Started
TOWN OF LAC DU FLAMBEAU: AIS Watercraft Inspection, Education & Lake Monitoring2008
TOWN OF LAC DU FLAMBEAU: AIS Watercraft Inspection, Education & Lake Monitoring Project2010
TOWN OF LAC DU FLAMBEAU: Lake Steward Program2011
TOWN OF LAC DU FLAMBEAU: AIS Boat Inspection, Education, & Lake Monitoring2006
TOWN OF LAC DU FLAMBEAU: AIS Watercraft Inspection, Education, & Lake Monitoring Project2007
TOWN OF LAC DU FLAMBEAU: AIS Watercraft Inspection, Education & Lake Monitoring Project2009
Fish Propagation Actions2001

Monitoring Projects

WBICOfficial Waterbody NameStation IDStation NameEarliest Fieldwork DateLatest Fieldwork DateView StationView Data
2321400Big Crooked Lake10055692Big Crooked Lake - Unimproved Ramp6/18/20216/18/2021MapData
2321400Big Crooked Lake10021024Big Crooked Lake - Deepest Spot8/15/20078/15/2007MapData
2321400Big Crooked Lake10006037Big Crooked Lake5/24/19949/21/2017MapData

Watershed Characteristics

Big Crooked Lake is located in the Bear River watershed which is 145.45 mi². Land use in the watershed is primarily forest (48.20%), wetland (32.30%) and a mix of open (17.90%) and other uses (1.70%). This watershed has 109.53 stream miles, 16,823.52 lake acres and 30,671.84 wetland acres.

Nonpoint Source Characteristics

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

Big Crooked Lake is considered a Two-Story 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.

Shallow headwater lake describes the depth and location of the lake in a watershed. These variables affect the lakes response to watershed variables.

Maps of Watershed
BIG CROOKED LAKE NESTS