Site Type

Site Name


HRM - Hood River Mouth

An instream interrogation system consisting of 2 antenna arrays located at the mouth of the Hood River. The antennas are against the west side jetty just inside the bar where the Hood River meets the Columbia River. The upstream array is comprised of five 20 foot antennas covering a total of 100 feet from shore. The downstream array is comprised of two 20 foot antennas that extend 40 feet from shore. The antenna arrays cover approximately 3/4 the stream width at low water conditions and a half of the stream at bank full. The transceiver is a IS1001-MTS and power is provided by solar panels charging a battery bank. Interrogation data is submitted several times a week via cellular modem.

Operated by:


First year:


Last year:




Site Contacts


Ryan Gerstenberger
(541) 352-9326


Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015 Site down September 30-October 27 for installation of new antennas and MTS transceiver.
2015 1/1/2015 1/1/2016 Antenna 1 down April 15 - May 11. Antennas 2 and 3 down April 15 - Jume 5. All 3 upstream antennas replaced June 5 and new antenna added to downstream array.
2016 1/1/2016 1/1/2017 Start and end dates based on timer tags.
2017 1/1/2017 1/1/2018 Start and end dates based on timer tags.
2012 1/9/2012 1/1/2013 First year of operations. Site down a few times in November and December.
2013 1/1/2013 1/1/2014
2018 1/1/2018 1/1/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 130

Start Date: 10/15/2015

End Date:

Config Seq: 120

Start Date: 6/4/2015

End Date: 10/15/2015

Config Seq: 110

Start Date: 10/27/2014

End Date: 6/4/2015

Config Seq: 100

Start Date: 1/9/2012

End Date: 10/27/2014

Event Logs