Warsing Dam Lake
Eddy County, North Dakota51 acresView mapDirections
Nutrients and algae run above the regional average.
- Eutrophic
- Impaired · Nutrients (phosphorus, nitrogen)
- #2 of 2 in the county
- Public access
- Limited data
Warsing Dam Lake in Eddy County, North Dakota has a water quality grade of D (Nutrient-rich). Water clarity: 2.3 ft visibility. Chlorophyll-a (algae): 25.7 µg/L. Surface area: 51 acres.
- Clarity
- 2.3 ft
- Typical in September
- 48°F
- Area
- 51 acres
- Type
- Eutrophic
- Chlorophyll-a
- 25.7 µg/L
- Public access
- Yes
Stays via Stay22
Stays near Warsing Dam Lake
Compare lakeside cabins, hotels, and vacation rentals near Warsing Dam Lake in Eddy County, North Dakota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Warsing Dam Lake are listed below.
Top-rated places to stay near Warsing Dam Lake
Prices for Sep 11–13, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at North Dakota’s top lakes →
Watch Warsing Dam Lake’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Warsing Dam Lake is a 51-acre productive, nutrient-rich eutrophic lake in Eddy County, North Dakota. Water quality is graded D based on 1 sampling years through 2021. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Eddy County, Warsing Dam Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled 2021-10-18. Grade methodology: LakeQuality methodology.
What Warsing Dam Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The D is nutrients and algae, not a swimming clearance. Warsing Dam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO), sediment / turbidity. Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
Very murky, less than 2.3 ft of visibility. Chlorophyll-a 25.7 µg/L. TSI 64. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 25.7 µg/L | Poor |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Temperature
Warsing Dam Lake typically sits around 48°F at the surface in September. Summer average is about 66°F. Usually warmest in Aug (about 69°F) and coldest in Sep (about 48°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 40 field readings (2016–2021) via the EPA Water Quality Portal. See the full Warsing Dam Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 51 acres |
| Public Access | Yes |
No bathymetric survey has been published for Warsing Dam Lake, so its depth is not documented here.
Recreation & Access
- Warsing DamPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Warsing Dam Lake
Reservoir Info (USACE NID)
Warsing Dam Lake is a man-made reservoir impounded by the Warsing Dam (completed 1961), built primarily for recreation on the Sheyenne River-TR; earth-type dam, 33 ft tall and 640 ft long.
- Surface area
- 51 ac
- Normal storage
- 594.7 ac-ft
- Max storage
- 1,264.7 ac-ft
- Drainage area
- 20 sq mi
- Hazard class
- Low
- Owner
- ND Game & Fish
Source: USACE National Inventory of Dams, NID ID ND00002 · Operator website
EPA Impairment Status
Warsing Dam Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit ND-09020202-001-L_00 · Official waterbody report
County Ranking
Ranked #2 of 2 lakes in Eddy County
Nearby Lakes With Higher Grades
Warsing Dam Lake holds Grade D. 3 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Eddy County
Frequently asked questions about Warsing Dam Lake
Where is Warsing Dam Lake?
- Warsing Dam Lake is a lake in Eddy County, North Dakota. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Warsing Dam Lake?
- Warsing Dam Lake in Eddy County, North Dakota has a water quality grade of D (Nutrient-rich). Water clarity: 2.3 ft visibility. Chlorophyll-a (algae): 25.7 µg/L. Surface area: 51 acres.
Is Warsing Dam Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Warsing Dam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO), sediment / turbidity. Check local advisories before you swim.
What is the water temperature of Warsing Dam Lake?
- Warsing Dam Lake typically sits around 48°F at the surface in September, from 40 EPA Water Quality Portal field readings (2016–2021). That is a typical value for the month, not a live reading.
Are there boat ramps on Warsing Dam Lake?
- Warsing Dam Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Warsing Dam. Public access is listed as yes.
Explore Warsing Dam Lake across LakeQuality
Species activity outlook by water temperature and season
Where to stay at North Dakota's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
North Dakota's cleanest and most-polluted lakes, ranked
More North Dakota Lake Rankings
Other Grade D Lakes in North Dakota
Eutrophic Lakes in North Dakota
Where this data comes from
20 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Dakota Department Of Environmental Quality
21NDHDWQ_WQX20 samples · 2021
Analytical methods
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Depth, fish, and access data from North Dakota Game & Fish
Named boat-access points from the USGS National Boat Ramps inventory