Lake of the Oaks
Clark County, Missouri65 acresView mapDirections
Missouri DNR publishes the water-quality measurements for Lake of the Oaks. Here is what has been measured.
- 39 ft max depth
- Limited data
Lake of the Oaks in Clark County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Phosphorus: 47 µg/L. Surface area: 65 acres.
Lake of the Oaks is a 65-acre lake in Clark County, Missouri with an estimated average depth of about 39 feet.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2022-07-28. 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 Lake of the Oaks is safe to swim in today is a call for the Missouri Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake of the Oaks
These are the measurements Missouri DNR publishes for Lake of the Oaks, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 47 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 47µg/L | Measured, not scored 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 Lake of the Oaks
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~39 ft est.
Surface area
65 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Missouri has not published bathymetry for Lake of the Oaks.
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.6 mi
HydroLAKES / HydroSHEDS
Elevation
614 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 Lake of the Oaks
Reservoir Info (USACE NID)
Lake of the Oaks is a man-made reservoir impounded by the Lake of The Oaks Dam (completed 1962), built primarily for recreation on the TR-BUCK RUN CR; earth-type dam, 34 ft tall and 990 ft long.
- Surface area
- 65 ac
- Normal storage
- 880 ac-ft
- Max storage
- 2,141 ac-ft
- Drainage area
- 900 sq mi
- Hazard class
- High
- Owner
- BEN KNAPP
Source: USACE National Inventory of Dams, NID ID MO10133 · Operator website
Nearby Lakes in Clark County
Frequently asked questions about Lake of the Oaks
Where is Lake of the Oaks?
- Lake of the Oaks is a lake in Clark County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Lake of the Oaks?
- Lake of the Oaks in Clark County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Phosphorus: 47 µg/L. Surface area: 65 acres.
Is Lake of the Oaks safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake of the Oaks?
- No published bathymetric survey covers Lake of the Oaks, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 39 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 65 acres.
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Where this data comes from
1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Missouri Dept. of Natural Resources
MDNR1 sample · 2022
Analytical methods
- Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest
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)