Lake Chickasha
Caddo County, Oklahoma820 acresView mapDirections
Not enough samples to grade — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. No letter yet. Here is what we do have.
- 63 ft max depth
- Public access
- Limited data
Lake Chickasha in Caddo County, Oklahoma is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.5 ft visibility. Phosphorus: 70 µg/L. Surface area: 820 acres.
- Clarity
- 1.5 ft
- Max depth
- ~63 ft est.
- Area
- 820 acres
- Phosphorus
- 70 µg/L
- Trend
- → Stable
- Public access
- Yes
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Watch Lake Chickasha’s letter
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Why Lake Chickasha has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Chickasha, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by ODEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Chickasha is a 820-acre lake in Caddo County, Oklahoma with an estimated average depth of about 63 feet. Water clarity is improving over recent sampling years. Limited fish-species data available. Public access is available with 3 public boat landings.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2021-09-27. Grade methodology: LakeQuality methodology.
What Lake Chickasha is good for
From access and monitoring records, not editorial picks.
- Boat launch3 documented ramps
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Lake Chickasha
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 1.5 ft of visibility. Phosphorus 70 µg/L. TSI 68.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 ft | Not graded |
| Phosphorus | 70 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 68 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~63 ft est. |
| Average Depth | ~60 ft est. |
| Surface Area | 820 acres |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Lake Chickasha.
Lake Size & Watershed
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.
Recreation & Access
- Lake ChickashaPublic
- Lake ChickashaPublic
- Lake Chickasha DamPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Chickasha
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +3.711 m/yr | 3 |
| Phosphorus | ↓ Declining | +43.5 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Lake Chickasha is a man-made reservoir impounded by the Chickasha Lake (completed 1958), built primarily for water supply on the Spring Creek; earth-type dam, 57 ft tall and 3,340 ft long.
- Surface area
- 820 ac
- Normal storage
- 41,080 ac-ft
- Max storage
- 79,850 ac-ft
- Drainage area
- 73 sq mi
- Hazard class
- High
- Owner
- City of Chickasha
Source: USACE National Inventory of Dams, NID ID OK02562 · Operator website
Graded lakes near Lake Chickasha
Lake Chickasha has no grade, but these lakes within a short drive do.
Nearby Lakes in Caddo County
Frequently asked questions about Lake Chickasha
Where is Lake Chickasha?
- Lake Chickasha is a lake in Caddo County, Oklahoma. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Lake Chickasha?
- Lake Chickasha in Caddo County, Oklahoma is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.5 ft visibility. Phosphorus: 70 µg/L. Surface area: 820 acres.
Is Lake Chickasha safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Lake Chickasha?
- No published bathymetric survey covers Lake Chickasha, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 63 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 820 acres.
Are there boat ramps on Lake Chickasha?
- Lake Chickasha has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lake Chickasha, Lake Chickasha, Lake Chickasha Dam. Public access is listed as yes.
Explore Lake Chickasha across LakeQuality
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Where this data comes from
43 measurements from 4 monitoring stations, 2012–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX28 samples · 2016–2021 - Delaware Nation, Oklahoma (Tribal)
DELAWARENATION15 samples · 2012–2013
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
Monitoring station identifiers (4)
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)
Named boat-access points from the USGS National Boat Ramps inventory