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Interrogation Site Metadata

PRA - Priest Rapids Adult

Status:   Active - Operations Unspecified
Site Type: Adult Fishway  |  Organization: Grant County Public Utility District
General Operational Period: Year Round
Start Date: 3/30/2003 6:02 PM

Priest Rapids Dam Adult Fishways (both)

Current Operations

Last File Loaded: PRA-2022-176-P-F2.xml
Date Last File Loaded: 6/25/2022 7:21 PM
Date Last File Opened: 6/25/2022 3:00 PM
Date Last File Closed: 6/25/2022 6:00 PM
Last Observation Tag: 3DD.003DEAB58C
Last Observation Date: 6/25/2022 5:58 PM
Detection Summary: Last Day's Observations


Primary Contact:

Brett Turley

Data Steward:

Rod O'Connor


Coordinates: 46.644339, -119.910442  |  River Km: 639

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
2021 1/1/2021 12:00 AM 1/1/2022 12:00 AM Start and end dates based on timer tags.
2020 1/1/2020 12:00 AM 1/1/2021 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.
2019 1/1/2019 12:00 AM 12/31/2019 12:00 AM Start and end dates based on timer tags.
2018 1/1/2018 12:00 AM 1/1/2019 12:00 AM Start and end dates based on timer tags.
2017 1/1/2017 12:00 AM 1/1/2018 12:00 AM Start and end dates based on timer tags.
2016 1/1/2016 12:00 AM 1/1/2017 12:00 AM Start and end dates based on timer tags.
2015 1/1/2015 12:00 AM 1/1/2016 12:00 AM Right ladder watered up on January 5 and trancsevers were activated on January 6. Left ladder dewatered January 5.
2014 1/1/2014 12:00 AM 1/1/2015 12:00 AM Left ladder watered up January 15, but data collection did not start until January 29. Right ladder dewatered January 16-February 24 (scheduled). Antennas 07 and 08 down April 1-3. Antenna 05 down April 8-May 20. Right ladder dewatered December 1.
2013 1/1/2013 12:00 AM 1/1/2014 12:00 AM Right ladder active starting on April 15.
2012 1/1/2012 12:00 AM 1/1/2013 12:00 AM The left ladder watered up on February 23. The right ladder was dewatered on February 23 and scheduled water up on March 22. Left ladder was dewatered November 21-December 27. Right ladder dewatered December 27.
2011 1/1/2011 12:00 AM 1/1/2012 12:00 AM The left ladder, which was dewatered on Nov. 22, 2010, watered-up on Jan. 4, 2011. PIT tag interrogation didn't begin until 1/24 because transceivers 01, 02, 03 and 04 were in standby. The right ladder was dewatered for maintenance between Jan. 5-26. There was no PIT tag detection operation at PRD between Jan. 5-24. The left ladder was dewatered on November 21; all remaining fish were pushed out on November 22. The ladder is scheduled to remain dewatered until February 2012.
2010 1/1/2010 12:00 AM 1/1/2011 12:00 AM The left fishway was dewatered from Nov. 30, 2009 until Feb. 17, 2010 for winter maintenance. The right fishway was dewatered between Feb. 17 and Mar. 31.
2009 1/1/2009 12:00 AM 1/1/2010 12:00 AM The right fish ladder at PRA was dewatered for maintenance purposes on Jan. 27. It apparently watered up again at the end of February. The OLAFT began operations on or before June 25 and continued operations until Oct. 15. The left ladder was dewatered for winter maintenance on November 30.
2008 1/1/2008 12:00 AM 1/1/2009 12:00 AM The East (left) fish ladder was dewatered on January 3.
2007 1/1/2007 12:00 AM 1/1/2008 12:00 AM The new Off-ladder Adult Fish Trap (OLAFT), located in the East fish ladder, was brought on-line sometime after June 1, 2007. The West (right) Ladder was dewatered for annual maintenance between 11/1/07 and 12/26/07.
2006 1/1/2006 12:00 AM 1/1/2007 12:00 AM The East Shore ladder (with antennas 01 - 04) was dewatered in early November, 2006.
2005 1/1/2005 12:00 AM 1/1/2006 12:00 AM The left (East) ladder was dewatered between Nov. 24, 2004 and Feb. 3, 2005 for annual maintenance. The right (West) ladder was dewatered between Feb. 4 and Feb. 28, 2005 for annual maintenance.
2004 1/1/2004 12:00 AM 1/1/2005 12:00 AM The left (East) ladder was dewatered between Nov. 26, 2003 and Feb. 10, 2004 for annual maintenance, and again between Nov. 24, 2004 and Feb. 3, 2005. The right (West) ladder was dewatered between Feb. 12 and Mar. 3, 2004 for annual maintenance.
2003 3/30/2003 6:02 PM 1/1/2004 12:00 AM First year of PIT tag detection at Priest Rapids ladders. Start date reflects first data file available. The left (East?) ladder was dewatered between Nov. 26, 2003 and Feb. 10, 2004 for annual maintenance.


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:  6/5/2007
End Date:  ----

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

No Photos

Event Log Summary

This displays the last 25 events, to see the full history, log in to the Dashboard and go to Interrogation Site > Event Logs.

Event Date Event Type Comments
5/17/2022 8:22:00 AM General

Primary data computer locked up on 5/12 and no data was uploaded until 5/17 when I traveled to the site and restarted the computer. The data gap was filled in with files from the secondary computer and no data was lost. 

8/16/2021 12:00:00 AM GMC

Antenna A3 on the OLAFT completely lost tune. I drove to the site and re-tuned the antenna. I could find no issues that caused the antenna to lose tune. However, the noise levels of the antenna are now in the 30-40% range. The other two antennas in the same shield are below 5%. Despite the higher noise levels, the antenna is detecting its VTT and read test tags that I put in its field. Will continue to monitor.

1/27/2021 8:00:00 AM General Re-installed a new data computer that had issues with the rocketport card.
2/4/2020 7:52:46 AM General 2019 Summary There was a data gap from 2/26 at 9:00 am to 3/5 at 9:34 due to a power outage at the trailer housing the data computers. Buffers of the readers on the right ladder were downloaded and they contained only test tags. The left ladder was dewatered during this time. Also OLAFT was not in operation. All tag data for 2019 is present and correct.
6/18/2019 2:40:00 PM General O&M visit. I checked the diagnostics of all transceivers, I tuned the antennas on the OLAFT mux. Re-booted the data PCs.
3/5/2019 11:00:00 AM General Power was lost to the data computers from 9:00 am on 2/26 to 9:34 on 3/5. I downloaded reader buffers to check for missing detected tags and there were none other than test tags. After restoring power to the computers, I renewed the firewall and antivirus subscription for each computer for one year. The left ladder was dewatered during this power outage.
12/5/2018 2:00:00 PM General Transceiver 01 through 08 firmware was updated to version 2.1.7
5/10/2018 1:01:10 PM General I reset the clocks on the data computers
3/21/2018 7:49:00 AM General O&M visit on 3/21. Checked all reader diagnostics for tune and reading efficiency. Tuned and tested the OLAFT mux.
10/26/2017 1:09:45 PM General O&M visit on 10/24. Checked diagnostics on all readers. Re-booted data computers and archived Minimon data files.
7/11/2017 12:26:00 PM General Turned off dyanamic tune and manually tuned antennas. When dynamic tune is turned on, antennas 02 and 03 go wildly out of tune for some reason. Will continue to monitor.
7/5/2017 7:54:10 AM General Antenna 03 on the OLAFT mux went out of tune. I was able to force the tune back to its original setting. Not sure what caused the antenna to go out of tune.
12/1/2016 8:25:04 AM General Fiber optic cables on readers 02 and 04 were somehow damaged in mid-November and communications were lost. On 11/30, an electronics tech with GCPUD repaired the cables and I tested communications on all readers and confirmed that everything is communicating properly. I manually downloaded buffers on readers 02 and 04 to check for detected tags that were not uploaded to PTAGIS.
4/8/2016 2:00:00 PM General Transceiver 01 was detuned and had a low capacitance alarm. I added caps and retuned.
2/3/2016 3:46:49 PM General The right ladder was watered up on 2/3/16.
1/18/2016 2:00:00 PM General Failed antenna 05 was replaced on 1/18.
1/18/2016 2:00:00 PM General FS1001A transceivers 01 through 08 were replaced with FS2020 transceivers.
1/18/2016 8:00:00 AM General Failed antenna 05 was replaced on 1/18.
11/17/2015 9:00:00 AM General The right fishway was dewatered on 11/17. No date set on when it will be watered back up. The left bank fishway is scheduled to be dewatered in February.
2/18/2015 3:37:46 PM General PRA has been unable to upload files since 12:00 pm on 2/17 because of work being done on the network at the dam. Grant PUD personnel are working on it and it should be resolved by 2/19.
1/29/2015 10:16:14 AM General Site visit on 1/26. Re-booted the locked up primary computer. Re-tuned and tested transceivers 05 through 08. 
1/6/2015 9:13:41 AM General The right ladder was de-watered on 12/1/14 and watered back up on 1/5/15. I re-activated transceivers 05 through 08 at 09:15 PST on 1/6. The left ladder was de-watered on 1/5/15. I de-activated transceivers 01 through 04 at 09:15 on 1/6.
9/5/2014 8:00:11 AM General The network that the PRA data computers are connected to is down since 9/2. Grant PUD personnel are tracking down the issue. O&M visit on 9/3. Tuned and tested transceivers and worked with Grant computer help desk to try to find network problem - still unresolved as of 9/4.
5/22/2014 10:05:14 AM General Re-installed reader 05 on 5/20. The current level is so low however (due to antenna leak), it will not read a test tag and likely will not read a tagged fish.
4/8/2014 8:07:13 AM General Due to electrical problems, transceivers 07 and 08 were down from April 1 to April 3. Electricians at the dam repaired the bad circuit and the transceivers were powered up @ 14:50 pm on April 3.