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Interrogation Site Metadata

TCM - Tryon Creek Mouth

Status:   Decommissioned
Site Type: Instream Remote Detection System  |  Organization: U.S. Fish and Wildlife Service
General Operational Period: Year Round
Start Date: 1/1/2014 12:00 AM
End Date: 9/29/2019 12:00 AM

TCM is an in-stream detection system consisting of four PIT arrays about 25 meters apart located near the mouth of Tryon Creek in Lake Oswego. Each array consists of one antenna that spans the creek width during normal flows. All arrays are oriented as pass through antennas except for F2 which is a pass over. Site is no longer active.


Primary Contact:

Brian Davis

Data Steward:

Brook Silver


Coordinates: 45.422485, -122.658549  |  River Km: 163.032.001

Operational History

Operational history describes the period the site was interrogating for PIT tags. The comments provide anecdotal information about the operation of the site during this period. Site operational periods are updated typically at the end of the calendar year.

Year Start Date End Date Comments
2019 1/1/2019 12:00 AM 9/29/2019 12:00 AM Study ended and site was permanently removed in September
2018 1/1/2018 12:00 AM 1/1/2019 12:00 AM Start and end dates based on timer tags.
2017 1/8/2017 12:00 AM 1/1/2018 12:00 AM Start and end dates based on timer tags.
2016 2/2/2016 12:00 AM 12/20/2016 12:00 AM Start and end dates based on timer tags.
2015 1/6/2015 12:00 AM 12/8/2015 12:00 AM Start and end dates based on timer tags.
2014 1/1/2014 12:00 AM 12/30/2014 12:00 AM Antenna 1 down March 6-15. Data lost for December 30-31 due to buffer overrun.


Configuration metadata includes details about the equipment used at the site to detect and record PIT tags. A new configuration sequence record is created when equipment is added or removed from the site and the period of time it was active. A configuration sequence without an End Date is currently active.

Select Configuration Number:
Start Date:  6/16/2015
End Date:  9/29/2019

Site Configuration Diagrams:

Equipment History

Select a type to view the history of equipment installed at this site. A missing End Date implies the information about the equipment is current.

Select Equipment Type:
Equipment Code Description Start Date End Date


Event Log Summary

Event Date Event Type Comments
9/16/2019 2:38:00 PM General Antennas #1 and #2 ran up until 09/29/2019 when study ended and the site was decommissioned. All data were uploaded and all down times accounted for.
1/1/2019 2:37:00 PM General All data and downtime accounted for in 2018.
11/24/2018 2:26:00 PM General Antenna # 3 no longer operational. Running only antennas #1 and #2 moving forward
4/4/2018 2:24:00 PM General Antenna # 4 no longer operational. Site was running with antennas 1, 2, and 3 moving forward.
1/1/2018 8:02:00 AM General All data have been uploaded and downtime has been accounted for the TCM site in 2017.
8/3/2017 8:02:00 AM General Antenna # 1 not functioning from 01/30/17 to 08/03/17 due to cable "pig tail" severed during high flow event . Willamette backwater rendered this unfixable till summertime.
1/1/2017 1:01:00 PM General All data have been uploaded and all downtimes have been documented for the year 2016.
10/27/2016 1:01:00 PM General Antenna # 3 was not in operation from 10/14/2016 to 10/27/2016 (cable was severed after a high flow event).
2/22/2016 1:01:00 PM General On 01/01/2016 the only functioning antenna at the mouth of Tryon Creek was antenna #2 (A2) (passover). On 02/02/2016 replacements for A1 and A3 were installed. On 02/22/2016 a replacement for A4 was installed, completing the Tryon PIT site.
12/31/2015 1:28:00 PM General All data were uploaded and all down times are accounted for.
1/6/2015 1:18:00 PM General Data were lost from 12/30/2014 to 01/06/2015 14:34:49 due to unique not being turned on (resulting in the buffer writing over data).
12/31/2014 7:44:00 AM General All data were uploaded. All down times were accounted for. 
12/31/2014 7:38:00 AM General No data are available for 12/31/2014 and the latter half of 12/30/2014 due to unique delay not being turned on and the buffer filling up. 
10/6/2014 4:15:43 PM General Registered new interrogation site TCM in PTAGIS.
9/10/2014 7:38:00 AM General Replaced Antenna #2 09/10/2014. Both antennas are reading excellent now, all the way through with less than 5% noise.
8/21/2014 7:38:00 AM General Due to low detectability and high noise, Antenna #1 was replaced. It is now reading 12 mm tags completely through and noise problems have been eliminated.
2/25/2014 7:38:00 AM General Antenna 1 was unplugged and not operating due to a high flow event, from 02/14/2014 to 02/25/2014.
2/11/2014 7:44:00 AM General Antennas have been reading intermittently and poorly due to power, cable length and noise issues. As of 02/11/2014 after resolving some of these issues, both antennas are operational.

No Archived Event Logs