Where is Quadra Lakes?

Quadra Lakes is a lake in Ketchikan Gateway County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.

How deep is Quadra Lakes?

No published bathymetric survey covers Quadra Lakes, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 26 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 39 acres.

Quadra Lakes

Ketchikan Gateway County, Alaska39 acresView map Directions

No nutrient or algae sampling on record from Alaska DEC for this lake.

Mean depth

~26 ft est.

HydroLAKES model

Area

39 acres

Surface area

26 ft mean depth (modelled)

See the measurements Directions Where to stay

Quadra Lakes in Ketchikan Gateway County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 39 acres.

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Quadra Lakes is a 39-acre lake in Ketchikan Gateway County, Alaska with an estimated average depth of about 26 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Quadra Lakes is safe to swim in today is a call for the Alaska Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Quadra Lakes

These are the measurements Alaska DEC publishes for Quadra Lakes, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Quadra Lakes

Answers come straight from the public measurements and survey records on this page.

Lake Details

Mean depth

~26 ft est.

Surface area

39 acres

Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Alaska has not published bathymetry for Quadra Lakes.

Lake Size & Watershed

Watershed (drainage) area

5 sq mi

HydroLAKES / HydroSHEDS

Mean depth

~26 ft est.

Modelled from terrain, not sounded

Shoreline

1 mi

HydroLAKES / HydroSHEDS

Elevation

525 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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Stays near Quadra Lakes

Compare lakeside cabins, hotels, and vacation rentals near Quadra Lakes in Ketchikan Gateway County, Alaska — 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.

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Fishing Quadra Lakes

→ Quadra Lakes fishing regulations (limits, seasons, special rules)

Nearby Lakes in Ketchikan Gateway County

Marten Arm Lake3.5 miView →Bakewell Lake4.8 miView →Hugh Smith Lake6.5 miView →Badger Lake4.4 miView →Bower Lake11.5 miView →Little Humpback Lake13.5 miView →

Frequently asked questions about Quadra Lakes

Where is Quadra Lakes?: Quadra Lakes is a lake in Ketchikan Gateway County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.
What is the water quality of Quadra Lakes?: Quadra Lakes in Ketchikan Gateway County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 39 acres.
Is Quadra Lakes safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Quadra Lakes?: No published bathymetric survey covers Quadra Lakes, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 26 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 39 acres.