Marsh Creek, Roxbury Creek Watershed (LW18)
Marsh Creek, Roxbury Creek Watershed (LW18)
Marsh Creek (1252900)
4.29 Miles
0 - 4.29
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.
Not Determined
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.
This river is impaired
Degraded Biological Community
Unknown Pollutant
Dane, Iowa
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.
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.
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.

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.
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.
Streams capable of supporting a warm waterdependent sport fishery. Representative aquatic life communities associated with these waters generally require cool or warm temperatures and concentrations of dissolved oxygen that do not drop below 5 mg/L.
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.


Marsh Creek is a short seepage fed tributary to the Wisconsin River. Marsh Creek supports
forage fish although some sport fish may move into the stream from the Wisconsin River.
The stream has a low gradient and portions of the stream in the headwaters have been ditched.
The stream is affected by hydrologic modification and nonpoint source pollution. Migrating
waterfowl have been known to use the stream. A rare aquatic species has been found in the
creek in past surveys.

From: Ripp, Coreen, Koperski, Cindy and Folstad, Jason. 2002. The State of the Lower Wisconsin River Basin.
PUBL WT-559-2002. Wisconsin Department of Natural Resources, Madison, WI.

Date  2002

Author  Cynthia Koperski

Historical Description

Marsh Creek (Marsh Valley Creek) -T8N, R6E, Sec. 6, Surface acres = 1.3, Length = 3.5 mile,. Stream order = I, Gradient = 5.0 ft/mile, Base discharge = 2.7 cfs.
Marsh Creek is a short seepage and spring-fed tributary to the Wisconsin River. Its gradient is lowand many wetlands adjoin the stream. Portions near the headwaters have been ditched. Water quality is good although agricultural runoff and the potential for more ditching pose problems. Migrating waterfowl frequent the area. Access is available at three road crossings. Fish species: forage species.

From: Day Elizabeth A.; Grzebieniak, Gayle P.; Osterby, Kurt M.; and Brynildson, Clifford L., 1985. Lake and Stream Classification Project. Surface Water Resources of Dane County, Wisconsin Department of Natural Resources, Madison, WI

Date  1985

Author   Surface Water Inventory Of Wisconsin

Marsh Creek, Roxbury Creek Watershed (LW18) Fish and Aquatic LifeMarsh Creek, Roxbury Creek Watershed (LW18) RecreationMarsh Creek, Roxbury Creek Watershed (LW18) Fish Consumption

General Condition

This water was assessed during the 2016 listing cycle; total phosphorus sample data clearly met 2016 WisCALM listing thresholds for the Fish and Aquatic Life use. Biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the poor condition category), but it was insufficient for a stand-alone assessment.

Date  2015

Author   Wdnr Water Quality

Impaired Waters

The 2018 assessments of Marsh Creek (miles 1-4) showed biological impairment; new fish and macroinvertebrate sample data exceeded the 2018 WisCALM listing criteria for the Fish and Aquatic Life use (i.e. at least one fish and macroinvertebrate Index of Biotic Integrity (IBI) average scored in the poor condition category). However, available total phosphorus sample data clearly met 2018 WisCALM listing criteria for the Fish and Aquatic Life use. Based on the most updated information, this water was proposed for the impaired waters list.

Date  2017

Author  Ashley Beranek


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.



Monitor Aquatic Biology
This water (1252900, Marsh Creek, AU: 13346) was assessed for the 2016 integrated reporting process and found to have clearly meeting total phosphorus but poor biology (either fish or macroinvertebrates) (see parameter assessment results). Follow up monitoring should be conducted to clarify the status of biology in the water.

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 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

Marsh Creek is located in the Roxbury Creek watershed which is 71.11 mi². Land use in the watershed is primarily agricultural (40.40%), forest (28.50%) and a mix of wetland (12.80%) and other uses (18.30%). This watershed has 111.73 stream miles, 988.84 lake acres and 4,432.98 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.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

Marsh Creek's natural community is not yet identified 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.