Lake Ross Barnett
Lake Ross Barnett in Smith County, Mississippi is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 80 acres.
- Area
- 80 acres
- Public access
- Yes
Why Lake Ross Barnett has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Ross Barnett, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Ross Barnett is a 80-acre lake in Smith 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 2022-05-11. Grade methodology: LakeGrade methodology.
Watch Lake Ross Barnett water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Ross Barnett
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near Lake Ross Barnett
Compare lakeside cabins, hotels, and vacation rentals near Lake Ross Barnett in Smith 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 Lake Ross Barnett
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 80 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Ross Barnett, so its depth is not documented here.
Recreation & Access
- Lake Ross Barnett (Lake Prentiss Walker)Public
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Lake Ross Barnett
Reservoir Info (USACE NID)
Lake Ross Barnett is a man-made reservoir impounded by the Prentiss Walker Lake Dam (completed 1963), built primarily for recreation on the Unt of Clear Creek; earth-type dam, 47 ft tall and 1,100 ft long.
- Surface area
- 80 ac
- Normal storage
- 1,305 ac-ft
- Max storage
- 1,479 ac-ft
- Drainage area
- 2.13 sq mi
- Hazard class
- High
- Owner
- MISSISSIPPI DEPARTMENT OF WILDLIFE FISHERIES AND PARKS
Source: USACE National Inventory of Dams, NID ID MS02721 · Operator website · Matched by proximity (0.04 km)
Graded lakes near Lake Ross Barnett
Lake Ross Barnett has no grade, but these lakes within a short drive do.
Nearby Lakes in Smith County
Frequently asked questions about Lake Ross Barnett
Where is Lake Ross Barnett?
- Lake Ross Barnett is a lake in Smith County, Mississippi. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Lake Ross Barnett?
- Lake Ross Barnett in Smith County, Mississippi is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 80 acres.
Is Lake Ross Barnett safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Ross Barnett is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Lake Ross Barnett?
- Lake Ross Barnett has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Ross Barnett (Lake Prentiss Walker). Public access is listed as yes.
Explore Lake Ross Barnett across LakeGrade
More Mississippi Lake Rankings
Other Lakes in Mississippi
Where this data comes from
6 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY
21MSWQ_WQX6 samples · 2022
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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
Named boat-access points from the USGS National Boat Ramps inventory