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Beaver Dam Lake
Enhanced dataInteractive depth contours
Beaver Dam LakeDodge County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 26% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 7-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Beaver Dam Lake.
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Fishing forecast
Best windows for Beaver Dam Lake
Weather-based planning built from the National Weather Service hourly forecast near this lake.
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Checking wind, precipitation, and near-term weather windows.
Water temperature
Beaver Dam Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
78°FPeak summer
Seasonal estimate. Checking current National Weather Service air temperatures…
Warmest water of the year. Fish hold deeper or feed in low light; swimming and watersports are at their best.
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
Wisconsin DNR water assessment
Impaired waterbody listed
The DNR lists this waterbody as impaired. This notice is not itself a closure; review the official assessment and current guidance before your trip.
303(d) / impairment recordRecreation restrictions noted
Excess Algal Growth, EutrophicationPollutants: Total Phosphorus
- Status
- TMDL Approved
- Public health
- General Advice
- Recreation
- Recreational Restrictions
- Aquatic life
- Not specified
Water is impaired due to one or more pollutants and associated quality impacts.
Review DNR water quality Check consumption advice Source updated 2026-03-25 · LakeList verified 2026-07-12
DNR water check
Water quality quick take
Historical volunteer-monitoring record for this lake.
Last sampled May 2026Volunteer monitoring 1995–2026
DNR volunteers monitored this lake for about 31 years, ending in 2026. Its final monitored summers showed murky water (~0.5 ft Secchi) in 2026 and high nutrients (phosphorus ~594 µg/L) in 2021.
78 five-year summer trophic state index · Hypereutrophic. Very nutrient-rich water — heavy algae and plant growth pressure.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2021 | — | — | 594.0 µg/L (3) |
| 2017 | — | — | 407.5 µg/L (4) |
Beaver Dam Lake - Rakes BayStation 10049214 · TSI based on chlorophyll
Historical record only — no current water-quality data exists for this lake. LakeList verified 2026-07-12.Official Wisconsin information
Plan with DNR sources
LakeList links to the authoritative record so you can verify maps, rules, and current notices before leaving.
Historical DNR depth maps6 converted map sheetsFishing regulationsVerify current seasons, limits, and restrictionsOfficial DNR lake pageFacts, advisories, boating, and water qualityWater quality reportsMonitoring stations, clarity, and DNR reportsInvasive speciesVerified, observed, and historical AIS recordsBoating ordinancesLocal slow-no-wake and water-use restrictionsFish consumption advisoriesStatewide and waterbody-specific health guidance
Historical depth maps are not for navigation. Verify regulations and access at the official source before your trip.
Historical Wisconsin DNR maps
Beaver Dam Lake depth maps
6 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Beaver Dam Lake · sheet 1
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 835100 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.
Source: Wisconsin Department of Natural Resources. Converted for browser access with source URLs, checksums, and retrieval dates retained. Historical lake maps are not for navigation.
Wisconsin DNR fisheries survey
Fish population survey
Structured LakeList extraction from the 2021 DNR fisheries survey. Population estimates, density, and catch-rate indices use different units, methods, and scopes, so each value is presented in its original form rather than normalized against a different measure.
Survey indicatorsValues keep their source unit and method; unlike measures are not scaled or compared.
Management contextThe 2021 comprehensive survey used spring fyke netting, spring and fall electrofishing and a Walleye mark-recapture estimate to assess Beaver Dam Lake's major gamefish and panfish populations.
The 2021 comprehensive survey used spring fyke netting, spring and fall electrofishing and a Walleye mark-recapture estimate to assess Beaver Dam Lake's major gamefish and panfish populations.
- Historical fisheries snapshot; not current fishing regulations or navigation guidance.
- Only metrics explicitly supported by the cited source page were promoted.
- Population estimates, relative-abundance indices, gear limitations and size thresholds retain source scope.
Black Crappie
1,387 fishSpring Netting I catch · p. 1316.9 fish/net nightSpring Netting I CPUE · p. 137.9 inchesMean length · p. 1313.2 inchesMaximum observed length · p. 13
Bluegill
123 fishSpring Netting I catch · p. 151.5 fish/net nightSpring Netting I CPUE · p. 155.9 inchesSpring Netting I mean length · p. 158.7 inchesMaximum observed length · p. 15
Channel Catfish
1,916 fishSpring Netting I catch · p. 1723.4 fish/net nightSpring Netting I CPUE · p. 1714.7 inchesMean length · p. 1726.1 inchesMaximum observed length · p. 17
Largemouth Bass
10 fishSpring Netting I catch · p. 120.1 fish/net nightSpring Netting I CPUE · p. 1212.2 inchesSpring Netting I mean length · p. 1239 fishSpring centrarchid electrofishing catch · p. 12
Northern Pike
50 fishSpring Netting I catch · p. 110.6 fish/net nightSpring Netting I CPUE · p. 1125 inchesSpring Netting I mean length · p. 1133.7 inchesMaximum observed length · p. 11
Walleye
1,050 fishSpring Netting I catch · p. 912.8 fish/net nightSpring Netting I CPUE · p. 927 inchesMaximum observed length · p. 917.6 inchesMean length · p. 9
White Crappie
719 fishSpring Netting I catch · p. 148.8 fish/net nightSpring Netting I CPUE · p. 148.5 inchesMean length · p. 1413.2 inchesMaximum observed length · p. 14
Yellow Perch
517 fishSpring Netting I catch · p. 146.3 fish/net nightSpring Netting I CPUE · p. 148.1 inchesMean length · p. 1412.4 inchesMaximum observed length · p. 14
Beaver Dam Lake comprehensive survey, 2021Matched by exact wbic name county · WBICs 835100 · verified 2026-07-19Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this public report with source attribution.
6,718surface acres
7max depth feet
8public access points
43.4965, -88.8700latitude, longitude
Access
Public access points
Boat launchAccess at Derge County Park43.49849, -88.87990Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchAccess at Spring Road43.53156, -88.90977Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchBeaver Dam Lake Fish Camp Public Access43.50704, -88.86908Managed by State(Dnr)Select One...Ramp surface: Concrete PanelsADA-accessible feature: YesVerified 2026-07-12
Boat launchBeaver Dam Lake Public Access43.53671, -88.93336Managed by STATE(DNR)TOWN OF WESTFORDRamp surface: ConcreteADA-accessible feature: NoVerified 2026-07-12
Boat launchEdgewater Park43.48650, -88.84460Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchTahoe Park Boat Ramp43.45387, -88.84767Managed by CITYCITY OF BEAVER DAMRamp surface: PavedADA-accessible feature: NoVerified 2026-07-12
Shore fishingTAHOW PARK FISHING PIER43.46170, -88.84924Managed by Wisconsin DNR verifiedBEAVER DAMVerified 2026-07-12
Boat launchWaterworks Park43.47298, -88.84736Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikeWalleyePanfish
Depth FAQ
How deep is Beaver Dam Lake?
Beaver Dam Lake is 7 feet deep at its deepest point and averages about 5 feet, according to Wisconsin DNR records.
Is there a free depth map of Beaver Dam Lake?
Yes. LakeList publishes a free interactive depth contour map of Beaver Dam Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Beaver Dam Lake depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-07-12
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