Projects

Project Name

Calapooia River Assessment & Restoration Prioritization Plan

Category
Watershed and Stream Assessments
Client / Agency
Calapooia Watershed Council
Partners
--
Location
Brownsville, Oregon
Date
2007 to 2008
Project Description
The Calapooia Watershed Council (CWC) retained RDG to complete an assessment and restoration recommendations for 8 miles of the Calapooia River. The section of river is bounded by the Brownsville Dam that was recently removed, and the Sodom Dam that is currently being evaluated for removal. This highly dynamic reach is characterized by a sinuous gravel bed river influenced by agriculture, residential development, and the city of Brownsville. Past bank stabilization projects and channel clearing activities have limited geomorphic function and the creation of off-channel habitats that were historically important for the native fish community.
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The Calapooia River Calapooia River Large wood and an abundant sediment load influence river processes Calapooia River Log drives in the 20th century Calapooia River An overlay of historical channel locations suggests the dynamic nature of the Calapooia River downstream from Brownsville, Oregon. Restoration and conservation measures on the Calapooia River
The Calapooia River
The Calapooia River is a dynamic alluvial floodplain river. Farmland borders much of the river corridor.
Calapooia River
Channel instability creates and destroys alluvial surfaces. Maintaining a broad riparian buffer zone is essential for protecting valuable farmland as well as ensure riverine habitat diversity.
Large wood and an abundant sediment load influence river processes
Large wood and an abundant sediment load influence river processes.
Calapooia River
Former gravel pits now provide floodplain habitats. Habitat enhancement projects aim to increase the frequency in which these features are connected with the mainstem river.
Log drives in the 20th century
Log drives in the 20th century resulted in extensive log jams, channel instability, and habitat loss.
Calapooia River
Past river training projects incorporated mature trees that were used to influence river patterns. The Calapooia River was extensively riprapped, straightened, and bermed in an effort to reduce flooding impacts and erosion.
An overlay of historical channel locations suggests the dynamic nature of the Calapooia River downstream from Brownsville, Oregon.
An overlay of historical channel locations suggests the dynamic nature of the Calapooia River downstream from Brownsville, Oregon.
Restoration and conservation measures on the Calapooia River
RDG collaborated with the Calapooia Watershed Council and local landowners to develop a plan for implementing restoration and conservation measures on the Calapooia River.