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Interrogation Site Metadata

SFL - Shipherd Falls Ladder

Status:   Decommissioned
Site Type: Instream Remote Detection System  |  Organization: Washington Dept. of Fish and Wildlife
General Operational Period:
Start Date: 4/11/2009 2:55 PM
End Date: 10/31/2010 4:15 PM

This site is located at Shipherd Falls adult fish ladder, on the Wind River near Carson, WA. The PIT tag interrogation antennas are installed in series in the second and third slots below the adult fish trap. Antenna F1 is upstream of antenna F2. All fish migrating up the fishway pass through these antennas prior to reaching the adult fish trap. When both the interrogation site and trap are in operation, tagged fish that successfully pass the antennas and enter the trap will therefore be logged as interrogations and recaptures in the trap. When the trap is out of operation (May-early June), the tagged fish will be interrogated only. During the winter, when the trap is in operation but the antennas are not, PIT-tagged fish will be reported as recaptured only.


Data Steward:

Charlie Cochran


Coordinates: 45.737978, -121.805784  |  River Km: 251.002

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
2010 4/29/2010 12:00 AM 10/31/2010 4:15 PM Recorded start date was derived from first data file. System was removed for the winter on Oct. 31, 2010.
2009 4/11/2009 2:55 PM 10/29/2009 8:44 PM This is the first year of operation for the interrogation in the Shipherd Falls ladder. Downloaded MUX on 7/22: Memory was full and data was overwritten. Data gap from 7/16/09 at 1223 through 7/20/09 at 0744.


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:  4/1/2010
End Date:  11/1/2010

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

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Event Log Summary

Event Date Event Type Comments

Archived Event Logs