Site Type

Site Name


NAU - Upper Nason Creek

This is a permanent instream PIT tag interrogation site at rkm 19 located on upper Nason Creek. The site consists of two rows of antennas, with each row spanning the wetted width of the channel during base flows. Each row consists of 3 15-foot PVC antennas, installed in flat-plate configuration. The FS1001M transceiver is powered by a thermoelectric generator. The antennas were built and installed by WDFW. A cellular modem is installed on site to provide remote communication and allow for automated data collection. A submersible pressure transducer and temperature probes are installed on site to monitor environmental conditions.

Operated by:


First year:


Last year:




Site Contacts


Jay Deason
(509) 664-3148 x22


Matthew Stilwater
(509) 664-3148


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015 Site down July 14-25, November 23-24.
2015 1/1/2015 1/1/2016
2008 7/25/2008 11/30/2008 First year of operation of Upper Nason Creek Array.
2009 3/26/2009 1/1/2010 There are no detection data available between 5/27/09 and 7/1/09. There are no detection data available between 8/20/09 and 9/1/09. There is a datagap between 10/9/09, 11:04 am and 10/15/09, 9:30 am.
2010 1/1/2010 1/1/2011 No data available between June 24 and July 2 due to loss of power.
2011 1/1/2011 1/1/2012 WDFW assumed responsibility for NAU on February 15. Site down due to power loss September 5-7, November 22-28.
2012 1/1/2012 1/1/2013
2013 1/1/2013 1/1/2014 No reported interruptions in operations.

Current and Historic Site Configurations

Config Seq: 100

Start Date: 10/1/2007

End Date:

Event Logs