Site Type

Site Name


SWK - Lower Swauk Creek

SWK is a permanent instream PIT tag detection system located at rkm 1.8 on lower Swauk creek. SWK was originally installed at rkm 0.5 and was operational from August of 2011-February of 2016. The site has been relocated to reduce the number of “dip in” detections as well as alleviating antenna noise issues. The site now consists of four rows of antennas, two 20ft HDPE flat plates and two 20ft X 8ft PEX pass-through antennas separated by ~25ft. All four rows of antennas span the wetted width of the channel during most flow conditions. The antennas were built by Yakama Nation and WDFW staff and installed using Manta ray MR4 anchors and NRS straps. The antennas are powered by Biomark IS1001 ACNs daisy chained to a Biomark IS1001 MTS. The site is connected to grid power.

Operated by:


First year:


Last year:




Site Contacts


Zack Mays
(509) 899-2422


Gabriel Temple
(509) 933-6080


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 12/9/2014 Site down June 23-July 31. Site down December 9 until the end of the year.
2016 2/11/2016 3/1/2016 Site down March 1. Site will be moved and reinstalled.
2015 1/26/2015 12/10/2015
2017 Site did not operate
2011 8/16/2011 1/1/2012
2012 1/1/2012 1/1/2013 Site was down from August 9 until December 31 due to damage from a wildfire in the area.
2013 1/1/2013 1/1/2014 No interruption in operations. Noise levels are high between 17:00 and 21:00 daily.
2018 Site did not operate
2019 8/21/2019 12/31/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 130

Start Date: 8/20/2019

End Date:

Config Seq: 120

Start Date: 12/16/2013

End Date: 3/1/2016

Config Seq: 110

Start Date: 12/31/2012

End Date: 12/16/2013

Config Seq: 100

Start Date: 8/16/2011

End Date: 12/31/2012

Event Logs