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Interrogation Site Metadata

SCL - Spring Creek NFH Adult Ladder

Status:   Active - Operations Unspecified
Site Type: Hatchery Returns  |  Organization: U.S. Fish and Wildlife Service
General Operational Period: Seasonally
Start Date: 8/25/2010 6:00 AM

Fish ladder allowing passage from the Columbia River into the adult holding ponds at Spring Creek NFH. The adult fish ladder at Spring Creek NFH is operational from late August through early October annually. The detector is approximately 60 meters up the adult ladder and is comprised of three antennas located in separate ladder cells. All fish entering the facility from the Columbia pass through the antennas and after ladder navigation are sorted and may either be either surplused or spawned. Some captured adults are returned to the river from the spawn collections (adults with adipose fin present and no coded wire tag). Released fish are passed through a tube that empties into the Columbia River directly upstream the fish ladder entrance.

Current Operations

Last File Loaded: SCL-2021-232-P-270.xml
Date Last File Loaded: 9/27/2021 2:11 PM
Date Last File Opened: 8/20/2021 10:36 AM
Date Last File Closed: 9/27/2021 10:00 AM
Last Observation Tag: 3DD.003E0D5E30
Last Observation Date: 9/26/2021 9:19 AM
Detection Summary: Last Day's Observations


Primary Contact:

Brian Davis

Data Steward:

Rikeem Sholes


Coordinates: 45.727501, -121.544389  |  River Km: 269

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 9/28/2021 12:00 AM Start and end dates based on timer tags.
2020 8/21/2020 12:00 AM 9/21/2020 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.
2019 8/6/2019 12:00 AM 10/4/2019 12:00 AM Start and end dates based on timer tags.
2018 8/23/2018 12:00 AM 9/26/2018 12:00 AM Start and end dates based on timer tags.
2017 8/18/2017 12:00 AM 10/4/2017 12:00 AM Start and end dates based on timer tags.
2016 8/23/2016 12:00 AM 10/12/2016 12:00 AM Start and end dates based on timer tags.
2015 8/24/2015 12:00 AM 10/14/2015 12:00 AM
2014 8/25/2014 11:00 AM 10/9/2014 8:00 AM No reported interruption in operations.
2013 8/20/2013 12:00 AM 10/1/2013 12:00 AM Fish ladder was open August 22 - September 27.
2012 8/23/2012 12:00 AM 9/30/2012 12:00 AM
2011 8/25/2011 11:10 AM 9/30/2011 8:00 AM Adult ladder entrance was open from August 25-September 30.
2010 8/25/2010 6:00 AM 10/6/2010 8:00 AM First year of operation. The Spring Creek NFH fish ladder began passing fish into the pond on August 25, 2010. The adult ladder was closed on October 6.


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.

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Start Date:  8/25/2010
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.

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Equipment Code Description Start Date End Date

No Photos

Event Log Summary

Event Date Event Type Comments
1/1/2020 12:37:00 PM General All data were uploaded in 2019 and there were no gaps in operation. Site ran from about 08/20/2019 to 10/02/2019
1/1/2019 8:42:00 AM General All 2018 data were uploaded and down times were accounted for. The site ran uninterrupted when the adult ladder was open (08/27/18 to mid-October).
12/31/2016 11:59:00 PM General Site turned on before ladder was opened on 8/23/16 @ 0722 hours. Ladder and site shut down on 10/12/16 @ 0000 hours. No down times were known to have occurred.
8/24/2015 12:38:00 PM General Site turned on before ladder was opened on 8/24/15 @ 1238 hours. Ladder and site shut down on 10/14/15 @ 1535 hours. No down times were known to have occurred.
12/31/2014 12:59:00 PM General Ladder opened 8/25/2014 @ 8:00 am. No down time was experienced by site. No detections were believed to be missed. Ladder closed 10/9/2014 @ 11:00 am.
12/31/2013 3:34:00 PM General All 2013 data has been uploaded and down times have been accounted for in PTAGIS.
12/19/2013 2:12:05 PM General SCL Event Log 12/19/2013 The SCL PIT antenna was in operation from 8/20/13 to 10/01/13. The antenna was down for a single day on 8/22/13 while the MUX was swapped out for maintenance. Spring Creek fish ladder was opened for the season on 8/22/13 at 8:30 AM, and closed for the season on 9/27/13 at 15:30 PM.

Archived Event Logs