Edertalsperre Strandbad Waldeck

Germany Lake 1 - Excellent

Edertalsperre is a reservoir created by damming the Eder River in Waldeck-Frankenberg district. The dam was completed in 1914 with a crest length of 400 m, a height of 47 m, and impounds a lake 27 km long with 69 km of shoreline. The reservoir enables navigation on the Weser River during low water levels, reduces flood risk in the Eder valley, and generates electricity. Water levels fluctuate seasonally, being lowest in winter and highest in spring.

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Water

Reservoir (Talsperre) created by damming the Eder River. Surface area 1,050 hectares. Maximum depth 41.7 m. Mean depth 14 m. Elevation 245 m above sea level. Water levels vary seasonally with lowest levels in late summer and highest in spring.

Location

Strandbad Waldeck is located on the northern shore of the lower section of the reservoir in Waldeck city, in Waldeck-Frankenberg district. An esplanade with numerous tourist facilities is nearby. The beach is 200 m long with a sandy shore and adjacent meadow for lying down.

Facilities

Kiosk, toilets, showers, esplanade with tourist services. Shoreline is shallow.

Season

1 June 2026 to 16 August 2026.

Water Quality

Excellent water quality classification for all monitoring years 2021–2025. Enterococci and Escherichia coli levels consistently below or at 15 KBE/100 ml. Water temperature ranges 12–24°C during monitoring periods. The reservoir has moderate ecological potential (mesotrophic classification). Nutrient levels support potential cyanobacteria development, particularly during low water levels. Municipal sewage, combined sewer overflow, and stormwater discharge are identified as potential hygiene risks.

Risks

Cyanobacteria (blue-green algae) development is possible due to nutrient levels, particularly during low water levels. Medium observed frequency of cyanobacteria blooms during bathing season. Cyanobacteria can produce substances causing allergic reactions and skin irritation. Municipal wastewater, combined sewage, and stormwater discharge are potential pollution sources.