Brush Creek 20-Year Stream Temperature Monitoring – a partnership with Oregon Department of Agriculture & Sub-Basin Restoration

background

The Calapooia WC began a 20-year partnership in 2017 with the Oregon Department of Agriculture to monitor changes in stream temperature in Brush Creek, an important tributary of the Calapooia River and the location of multiple habitat restoration projects led by the CWC. 

The Council and its partners – Linn County Road Department, BLM, private landowners, and private industry including Cascade Timber Consulting Inc., Rosboro Lumber and Melcher Lumber- have focused restoration and conservation activities in the high priority sub-basin, Brush Creek, over the last fifteen years.

objective

The goal of the monitoring partnership is to gather long-term stream temperature data on agricultural lands in small watersheds. Then, compare stream temperature changes to changes in streamside vegetation that result from riparian enhancements.

implementation

Over the 20-year monitoring partnership, multiple temperature loggers will be placed in Brush Creek, along with periodic vegetation surveys, to assess the impact these projects have on aquatic systems. Stream temperatures can be influenced by multiple factors including: streamside vegetation, air temperatures, and stream flows. 

CWC and R. Franco Restoration successfully installed 10,000 native plants along the banks of the Calapooia River and Brush Creek to enhance and rebuild healthy riparian buffers.

Over time, streamside vegetation can help reduce the rate of stream heating by providing shade, helping make streams narrower and deeper, and increasing water storage in the soil for cooler and later season flows.

outcomes

  • All high priority fish passage barriers have been restored – as identified bby the Council’s Fish Passage Assessment (OWEB, 2004)
  • 6 miles of in-stream aquatic habitat enhanced with over 75 wood jam structures (400+ logs) on BLM, private resident and private timber industry land
  • Riparian buffer restoration & CREP enrollment at 7 large private landowner properties along with pasture management improvements and exclusion fencing through the Regional Restoration Program

ODFW Fish Habitat Surveys (2006)

Calapooia Basin RBA Snorkel Survey Brief

(2013-2014)

CWC Fish Passage Assessment (2004)