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LakeQuality

Reidsville Lake

Rockingham County, North Carolina680 acresView mapDirections

D
Nutrient-rich

Nutrients and algae run above the regional average.

Water temp
No reading
No gauge
Clarity
3 ft
Secchi · sampled 2023
Level
No reading
No gauge
Trend
No reading
Not enough history
  • Eutrophic
  • #2 of 2 in the county
  • 40 ft max depth
  • Limited data

Reidsville Lake in Rockingham County, North Carolina has a water quality grade of D (Nutrient-rich). Water clarity: 3 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 16.5 µg/L. Surface area: 680 acres.

Clarity
3 ft
Max depth
~40 ft est.
Area
680 acres
Type
Eutrophic
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Stays near Reidsville Lake

Compare lakeside cabins, hotels, and vacation rentals near Reidsville Lake in Rockingham County, North Carolina — 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 Reidsville Lake are listed below.

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Reidsville Lake is a 680-acre productive, nutrient-rich eutrophic lake in Rockingham County, North Carolina with an estimated average depth of about 40 feet. Water quality is graded D based on 2 sampling years through 2023. Compared to the 1 other monitored lakes in Rockingham County, Reidsville Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2023-09-06. Grade methodology: LakeQuality methodology.

Swimming Safety

Grade only

Limited 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. Check local advisories before you swim.

Get alerts for Reidsville Lake

Water Quality Grade: D (Nutrient-rich)

Very murky, less than 3 ft of visibility. Phosphorus 30 µg/L. Chlorophyll-a 16.5 µg/L. TSI 58. The letter is not a swimming clearance.

MetricValueGrade
Water Clarity (Secchi Depth)3 ftNot graded
Phosphorus30 µg/LFair
Chlorophyll-a (Algae)16.5 µg/LPoor
Trophic State Index (TSI)58Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth~40 ft est.
Average Depth~33 ft est.
Surface Area680 acres

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. North Carolina has not published bathymetry for Reidsville Lake.

Lake Size & Watershed

Watershed (drainage) area
51 sq mi
Shoreline
11 mi
Elevation
702 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Fishing Reidsville Lake

Reservoir Info (USACE NID)

Reidsville Lake is a man-made reservoir impounded by the Troublesome Creek Dam (completed 1974), built primarily for water supply on the Troublesome Creek; earth-type dam, 47 ft tall and 1,720 ft long.

Surface area
680 ac
Normal storage
9,139 ac-ft
Max storage
21,161 ac-ft
Drainage area
53.77 sq mi
Hazard class
High
Owner
City of Reidsville Public Works Department

Source: USACE National Inventory of Dams, NID ID NC01599 · Operator website

County Ranking

Ranked #2 of 2 lakes in Rockingham County

Nearby Lakes With Higher Grades

Reidsville Lake holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.

Nearby Lakes in Rockingham County

Frequently asked questions about Reidsville Lake

Where is Reidsville Lake?

Reidsville Lake is a lake in Rockingham County, North Carolina. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Reidsville Lake?

Reidsville Lake in Rockingham County, North Carolina has a water quality grade of D (Nutrient-rich). Water clarity: 3 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 16.5 µg/L. Surface area: 680 acres.

Is Reidsville Lake safe to swim in?

The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.

How deep is Reidsville Lake?

No published bathymetric survey covers Reidsville Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 680 acres.

Where this data comes from

40 measurements from 2 monitoring stations, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • North Carolina Dept of Environmental Quality NCDEQ-DWR WQX21NC03WQ40 samples · 2023

Analytical methods

  • WSSSOP
  • Phosphorus by Colorimetry
  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
  • 2130 B ~ Nephelometric Method
Monitoring station identifiers (2)

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

Lake size & watershed from HydroLAKES (HydroSHEDS)