Shadow Lake
Scott County, Mississippi130 acresView mapDirections
MDEQ publishes the water-quality measurements for Shadow Lake. Here is what has been measured.
- Eutrophic
- Public access
Shadow Lake in Scott County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 4.8 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 19.7 µg/L. Surface area: 130 acres.
Shadow Lake is a 130-acre productive, nutrient-rich eutrophic lake in Scott County, Mississippi. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-10-01. Methodology: how these readings are compared.
What Shadow Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyAlgae risk
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Shadow Lake is safe to swim in today is a call for the Mississippi Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Shadow Lake
These are the measurements MDEQ publishes for Shadow Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.8 ft. Phosphorus 30 µg/L. Chlorophyll-a 19.7 µg/L. TSI 56.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 30µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 19.7µg/L | Fair GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 56 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Shadow Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
130 acres
Public access
Yes
Listed by MDEQ
No bathymetric survey has been published for Shadow Lake, so its depth is not documented here.
Recreation & Access
- Roosevelt State ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Shadow Lake
Compare lakeside cabins, hotels, and vacation rentals near Shadow Lake in Scott County, Mississippi — 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.
Top-rated places to stay near Shadow Lake
Prices for Oct 9–11, 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.
Follow Shadow Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Shadow Lake
Reservoir Info (USACE NID)
Shadow Lake is a man-made reservoir impounded by the Roosevelt State Park Lake Dam (completed 1935), built primarily for recreation on the Unt of Line Creek; earth-type dam, 30 ft tall and 2,200 ft long.
- Surface area
- 130 ac
- Normal storage
- 1,040 ac-ft
- Max storage
- 2,860 ac-ft
- Drainage area
- 1.45 sq mi
- Hazard class
- High
- Owner
- MISSISSIPPI DEPARTMENT OF WILDLIFE FISHERIES AND PARKS
Source: USACE National Inventory of Dams, NID ID MS02349 · Operator website · Matched by proximity (0.08 km)
Nearby Lakes in Scott County
Frequently asked questions about Shadow Lake
Where is Shadow Lake?
- Shadow Lake is a lake in Scott County, Mississippi. Its water-quality measurements are published by MDEQ and shown on this page as reported.
What is the water quality of Shadow Lake?
- Shadow Lake in Scott County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 4.8 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 19.7 µg/L. Surface area: 130 acres.
Is Shadow Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Shadow Lake?
- Shadow Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Roosevelt State Park. Public access is listed as yes.
Can I fish at Shadow Lake?
- Shadow Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Mississippi's fish and wildlife agency, so check its current regulations before you go.
Explore Shadow Lake across LakeQuality
More lakes in Mississippi
Other Lakes in Mississippi
Eutrophic Lakes in Mississippi
Where this data comes from
63 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY
21MSWQ_WQX63 samples · 2020–2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory