Ollenbäke River

CourseThe Ollenbäke has its source near the district road 346 near Langebrügge in the municipality of Bad Zwischenahn. From here it flows in a southwesterly direction. Between Bad Zwischenahn and Westerstede-Ocholt it changes its course in a northwesterly direction and flows south of Apen into the Große Süderbäke, which shortly afterwards forms the Aper Tief at the confluence with the Große Norderbäke. The Ollenbäke is influenced by the tides up to just above the municipal border between Apen and Westerstede. The tidal range is up to half a meter.The Ollenbäke has been mostly straightened along its entire course and has been embanked on the last 750 meters or so above the mouth of the Große Süderbäke since the mid-1950s. It flows through areas that are intensively used for agriculture, and only occasionally through small forest areas. At Ocholt-Howiek, an old arm of the river, the Alte Ollenbäke, branches off from the Ollenbäke. The Howieker watermill is located on it.

The Ollenbäke flows from the east over the farming communities of Godensholterfeld and Apermarsch towards Apen and there merges into the Große Süderbäke.
The tidal range is up to half a meter.
The Howieker water mill was previously powered by the Ollenbäke.