Rock Creek Reservoir
Carter County, Oklahoma248 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Rock Creek Reservoir. Here is what has been measured.
- 37 ft max depth
- Limited data
Rock Creek Reservoir in Carter County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.2 ft visibility. Surface area: 248 acres.
Rock Creek Reservoir is a 248-acre lake in Carter County, Oklahoma with an estimated average depth of about 37 feet.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-10-23. 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 Rock 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 Rock Creek Reservoir
These are the measurements Oklahoma DEQ publishes for Rock Creek Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3.2 ft of visibility. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.2ft | 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 Rock Creek Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~37 ft est.
Surface area
248 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 Rock Creek Reservoir.
Lake Size & Watershed
Watershed (drainage) area
5 sq mi
HydroLAKES / HydroSHEDS
Shoreline
3 mi
HydroLAKES / HydroSHEDS
Elevation
820 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 Rock Creek Reservoir
Reservoir Info (USACE NID)
Rock Creek Reservoir is a man-made reservoir impounded by the SCS-Caddo Creek Site -18 (completed 1979), built primarily for water supply on the Rock Creek; earth-type dam, 53 ft tall and 1,030 ft long.
- Surface area
- 248 ac
- Normal storage
- 2,573 ac-ft
- Max storage
- 5,377 ac-ft
- Drainage area
- 5.61 sq mi
- Hazard class
- High
- Owner
- ARBUCKLES CONSERVATION DISTRICT
Source: USACE National Inventory of Dams, NID ID OK00438 · Operator website
Nearby Lakes in Carter County
Frequently asked questions about Rock Creek Reservoir
Where is Rock Creek Reservoir?
- Rock Creek Reservoir is a lake in Carter County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Rock Creek Reservoir?
- Rock Creek Reservoir in Carter County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.2 ft visibility. Surface area: 248 acres.
Is Rock Creek Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Rock Creek Reservoir?
- No published bathymetric survey covers Rock Creek Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 37 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 248 acres.
Explore Rock Creek Reservoir across LakeQuality
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Rock Creek Reservoir is about 18 miles from Chickasaw National Recreation Area. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
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Where this data comes from
23 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_WQX23 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)