Brushy Creek Reservoir
Sequoyah County, Oklahoma358 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Brushy Creek Reservoir. Here is what has been measured.
- 74 ft max depth
- Limited data
Brushy Creek Reservoir in Sequoyah County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.4 ft visibility. Surface area: 358 acres.
Brushy Creek Reservoir is a 358-acre lake in Sequoyah County, Oklahoma with an estimated average depth of about 74 feet.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-10-02. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Brushy Creek Reservoir is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Brushy Creek Reservoir
These are the measurements Oklahoma DEQ publishes for Brushy Creek Reservoir, 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 3.4 ft. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.4ft | 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) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Brushy Creek Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~74 ft est.
Surface area
358 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Brushy Creek Reservoir.
Lake Size & Watershed
Watershed (drainage) area
21 sq mi
HydroLAKES / HydroSHEDS
Shoreline
3 mi
HydroLAKES / HydroSHEDS
Elevation
650 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.
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Fishing Brushy Creek Reservoir
Water quality readings over time
2 seasons of samples on record (2020–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Stable2 years
Reservoir Info (USACE NID)
Brushy Creek Reservoir is a man-made reservoir impounded by the SCS-Sallisaw Creek Site-29 (completed 1964), built primarily for water supply on the Sallisaw Creek; earth-type dam, 62 ft tall and 1,225 ft long.
- Surface area
- 358 ac
- Normal storage
- 3,258 ac-ft
- Max storage
- 4,800 ac-ft
- Hazard class
- High
- Owner
- SEQUOYAH CO CONS DIST
Source: USACE National Inventory of Dams, NID ID OK01232 · Operator website · Matched by proximity (0.93 km)
Nearby Lakes in Sequoyah County
Frequently asked questions about Brushy Creek Reservoir
Where is Brushy Creek Reservoir?
- Brushy Creek Reservoir is a lake in Sequoyah County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Brushy Creek Reservoir?
- Brushy Creek Reservoir in Sequoyah County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.4 ft visibility. Surface area: 358 acres.
Is Brushy Creek Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Brushy Creek Reservoir?
- No published bathymetric survey covers Brushy Creek Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 74 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 358 acres.
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Where this data comes from
27 measurements from 3 monitoring stations, 2019–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX27 samples · 2019–2023
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (3)
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)