Site Type

Site Name


ACM - Asotin Creek near mouth

ACM is a permanent instream PIT tag interrogation site located near the mouth of Asotin Creek, a tributary of the Snake River. As of 10/12/2018 all previous components present at ACM have been replaced and upgraded. The site consists of 3 rows of antennas with each row containing two 20- foot HDPE antennae, installed in flat-plate configuration. Each antenna is powered by a Biomark IS1001 (ACN) and the ACNs are connected to a Biomark IS1001-MTS master controller. The antennas were built and installed by WDFW. The site is connected to grid power to charge the battery bank powering the detection system. A cellular modem is installed on site to provide remote communication and allow for automated data collection, however, only manual data collection from the IS1001-MTS will occur at ACM until further notice. Prior to the upgrade, the site consisted of six antennas powered by an FS1001M.

Operated by:


First year:


Last year:




Site Contacts


Steve Bennett
(435) 757-5668


Ethan Crawford
(509) 751-0823


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015 Site down March 25-September 1.
2015 1/1/2015 1/1/2016
2016 1/1/2016 1/1/2017
2017 1/1/2017 1/1/2018 Site down from March 19 - August 26
2011 8/1/2011 1/1/2012 First complete year of operations
2012 1/1/2012 1/1/2013 Site down from March 26 - August 30. Two antennas were added to the site on September 21.
2013 1/1/2013 1/1/2014 No reported interruptions in operation.
2018 1/1/2018 1/1/2019
2019 1/1/2019 12/31/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 110

Start Date: 8/30/2012

End Date:

Config Seq: 100

Start Date: 8/1/2011

End Date: 8/30/2012

Event Logs