Concannon State Fishing Lake
Finney County, Kansas15 acresView mapDirections
KDHE publishes the water-quality measurements for Concannon State Fishing Lake. Here is what has been measured.
- 11 ft max depth
- Public access
- Limited data
Concannon State Fishing Lake in Finney County, Kansas has water-quality measurements published by KDHE, shown here as reported. Phosphorus: 220 µg/L. Chlorophyll-a (algae): 1.2 µg/L. Surface area: 15.21 acres.
Concannon State Fishing Lake is a 15-acre lake in Finney County, Kansas with an estimated average depth of about 11 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2016-06-14. Methodology: how these readings are compared.
What Concannon State Fishing Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Concannon State Fishing Lake is safe to swim in today is a call for the Kansas Department of Health and Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Concannon State Fishing Lake
These are the measurements KDHE publishes for Concannon State Fishing Lake, 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 220 µg/L. Chlorophyll-a 1.2 µg/L. TSI 57.
| 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 | 220µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 1.2µg/L | Measured, not scored 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. | 57 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Concannon State Fishing Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~11 ft est.
Surface area
15 acres
Public access
Yes
Listed by KDHE
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Kansas has not published bathymetry for Concannon State Fishing Lake.
Lake Size & Watershed
Watershed (drainage) area
88 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1 mi
HydroLAKES / HydroSHEDS
Elevation
2,680 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.
Recreation & Access
- Concannon Wildlife AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Concannon State Fishing Lake
Compare lakeside cabins, hotels, and vacation rentals near Concannon State Fishing Lake in Finney County, Kansas — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Concannon State Fishing Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Kansas’s top lakes →
Follow Concannon State Fishing Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Concannon State Fishing Lake
Reservoir Info (USACE NID)
Concannon State Fishing Lake is a man-made reservoir impounded by the Concannon Marsh Dam (completed 1952), built primarily for fire protection, stock, or small fish pond on the Pawnee River-Tr; earth-type dam, 19 ft tall and 975 ft long.
- Surface area
- 15.21 ac
- Normal storage
- 45 ac-ft
- Max storage
- 150 ac-ft
- Drainage area
- 19.4 sq mi
- Hazard class
- Low
- Owner
- KANSAS DEPT OF WILDLIFE PARKS & TOURISM
Source: USACE National Inventory of Dams, NID ID KS00712 · Operator website · Matched by proximity (0.22 km)
Nearby Lakes in Finney County
Frequently asked questions about Concannon State Fishing Lake
Where is Concannon State Fishing Lake?
- Concannon State Fishing Lake is a lake in Finney County, Kansas. Its water-quality measurements are published by KDHE and shown on this page as reported.
What is the water quality of Concannon State Fishing Lake?
- Concannon State Fishing Lake in Finney County, Kansas has water-quality measurements published by KDHE, shown here as reported. Phosphorus: 220 µg/L. Chlorophyll-a (algae): 1.2 µg/L. Surface area: 15.21 acres.
Is Concannon State Fishing Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Concannon State Fishing Lake?
- No published bathymetric survey covers Concannon State Fishing Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 11 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 15.21 acres.
Are there boat ramps on Concannon State Fishing Lake?
- Concannon State Fishing Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Concannon Wildlife Area. Public access is listed as yes.
Can I fish at Concannon State Fishing Lake?
- Concannon State Fishing Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Kansas's fish and wildlife agency, so check its current regulations before you go.
Explore Concannon State Fishing Lake across LakeQuality
More lakes in Kansas
Other Lakes in Kansas
Eutrophic Lakes in Kansas
Where this data comes from
4 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX4 samples · 2016
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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)
Named boat-access points from the USGS National Boat Ramps inventory