Where is Beaver Dam Lake?

Beaver Dam Lake is a lake in Macoupin County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.

How deep is Beaver Dam Lake?

Beaver Dam Lake has a maximum depth of 9.5 feet and an average depth of 7.4 feet. The lake covers 52 acres.

Are there boat ramps on Beaver Dam Lake?

Beaver Dam Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Beaver Dam Lake. Public access is listed as yes.

Can I fish at Beaver Dam Lake?

Beaver Dam 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 Illinois's fish and wildlife agency, so check its current regulations before you go.

Beaver Dam Lake

Macoupin County, Illinois52 acresView map Directions

No nutrient or algae sampling on record from Illinois EPA for this lake.

Max depth

9.5 ft

Bathymetric survey

Area

52 acres

Surface area

Shoreline

1.6 mi

Measured length

Impaired · Mercury
10 ft max depth
Public access

See the measurements Directions Where to stay

Beaver Dam Lake in Macoupin County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 9.5 ft. Surface area: 52 acres.

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Beaver Dam Lake is a 52-acre lake in Macoupin County, Illinois with a maximum depth of 10 feet (7-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.

What Beaver Dam Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Beaver Dam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Beaver Dam Lake is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Beaver Dam Lake

These are the measurements Illinois EPA publishes for Beaver Dam 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. TSI undefined.

Ask about Beaver Dam Lake

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

Lake Details

Max depth

9.5 ft

Average depth

7.4 ft

Surface area

52 acres

Shoreline

1.6 mi

Public access

Yes

Listed by Illinois EPA

Recreation & Access

Boat Landings

Yes

Public Access

Beaver Dam LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Beaver Dam Lake

Compare lakeside cabins, hotels, and vacation rentals near Beaver Dam Lake in Macoupin County, Illinois — 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 Beaver Dam Lake

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Fishing Beaver Dam Lake

→ Beaver Dam Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Beaver Dam Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)

Designated uses not supporting: Fish consumption, Other.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit IL_RDH · Official waterbody report

Nearby Lakes in Macoupin County

Lake Catatoga2.4 miView →Bullard Lake2.3 miView →Smith Reservoir4.9 miView →New Gillespie Lake6.3 miView →Lake Carlinville6.4 miView →Old Gillespie Lake7.5 miView →

Frequently asked questions about Beaver Dam Lake

Where is Beaver Dam Lake?: Beaver Dam Lake is a lake in Macoupin County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Beaver Dam Lake?: Beaver Dam Lake in Macoupin County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 9.5 ft. Surface area: 52 acres.
Is Beaver Dam Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Beaver Dam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Beaver Dam Lake?: Beaver Dam Lake has a maximum depth of 9.5 feet and an average depth of 7.4 feet. The lake covers 52 acres.
Are there boat ramps on Beaver Dam Lake?: Beaver Dam Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Beaver Dam Lake. Public access is listed as yes.
Can I fish at Beaver Dam Lake?: Beaver Dam 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 Illinois's fish and wildlife agency, so check its current regulations before you go.