Brandy Branch Reservoir
Harrison County, Texas1,242 acresView mapDirections
TCEQ publishes the water-quality measurements for Brandy Branch Reservoir. Here is what has been measured.
- Mesotrophic
- 50 ft max depth
- Limited data
Brandy Branch Reservoir in Harrison County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 12 ft visibility. Chlorophyll-a (algae): 3.1 µg/L. Surface area: 1242 acres.
Brandy Branch Reservoir is a 1,242-acre mesotrophic lake in Harrison County, Texas with an estimated average depth of about 50 feet. Water clarity is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2024-09-18. Methodology: how these readings are compared.
Brandy Branch Reservoir covers about 1,200 acres in Harrison County. If you are planning to stay, you can search lake houses and cabins around Brandy Branch Reservoir on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Brandy Branch Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water12 ft of visibility
- Big water1,242 acres
Swimming conditions
Readings onlyLimited data
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 Brandy Branch Reservoir is safe to swim in today is a call for the Texas Commission on Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Brandy Branch Reservoir
These are the measurements TCEQ publishes for Brandy Branch Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 12 ft. Chlorophyll-a 3.1 µg/L. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 12ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 3.1µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Brandy Branch Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~50 ft est.
Surface area
1,242 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Texas has not published bathymetry for Brandy Branch Reservoir.
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Shoreline
10.1 mi
HydroLAKES / HydroSHEDS
Elevation
344 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.
Stays via Stay22
Stays near Brandy Branch Reservoir
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Fishing Brandy Branch Reservoir
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2024).
Water clarity
Improving5 years
Chlorophyll-a
Worsening+0.44 µg/L/yr5 years
Reservoir Info (USACE NID)
Brandy Branch Reservoir is a man-made reservoir impounded by the Brandy Branch Cooling Pond Dam (completed 1983), built primarily for other on the Brandy Branch; earth-type dam, 80 ft tall and 3,200 ft long.
- Surface area
- 1,242 ac
- Normal storage
- 29,513 ac-ft
- Max storage
- 38,672 ac-ft
- Drainage area
- 4.1 sq mi
- Hazard class
- Significant
- Owner
- AEP UTILITIES WEST
Source: USACE National Inventory of Dams, NID ID TX04833 · Operator website · Matched by proximity (0.44 km)
Nearby Lakes in Harrison County
Frequently asked questions about Brandy Branch Reservoir
Where is Brandy Branch Reservoir?
- Brandy Branch Reservoir is a lake in Harrison County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Brandy Branch Reservoir?
- Brandy Branch Reservoir in Harrison County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 12 ft visibility. Chlorophyll-a (algae): 3.1 µg/L. Surface area: 1242 acres.
Is Brandy Branch Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Brandy Branch Reservoir?
- No published bathymetric survey covers Brandy Branch Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 50 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 1242 acres.
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Where this data comes from
38 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN38 samples · 2020–2024
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
Lake size & watershed from HydroLAKES (HydroSHEDS)