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Interrogation Site Metadata

CFD - Cowlitz Falls Dam

Status:   Active - Non-Operational
Site Type: Juvenile Fish Bypass Facility  |  Organization: Tacoma Public Utilities
General Operational Period: Seasonally
Start Date: 4/16/2013 12:00 AM

Upstream most dam on Cowlitz River. As of 2014 fish facilities include 3 sets of PIT tag readers. One associated with each of the spillway #2 and #3 flumes, and one downstream of the Cowlitz Falls Fish Facility following fish handling. In April 2017, 3 antennas were installed in the Cowlitz Falls North Shore Collector, and 2 sets of 2 antennas each were installed downstream of the separator to support sort by code operations.

Current Operations

Last File Loaded: CFD-2022-176-P-02G.xml
Date Last File Loaded: 6/25/2022 10:50 PM
Date Last File Opened: 6/25/2022 7:24 PM
Date Last File Closed: 6/25/2022 7:24 PM
Last Observation Tag: 3DD.003E1609C1
Last Observation Date: 6/25/2022 7:24 AM
Detection Summary: Last Day's Observations


Primary Contact:

Matt Peter

Data Steward:

Christopher Noyes


Coordinates: 46.466947, -122.110367  |  River Km: 111.133

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 1/24/2017 12:00 AM 1/1/2018 12:00 AM Start and end dates based on timer tags.
2016 4/16/2016 12:00 AM 8/31/2016 12:00 AM
2015 4/17/2015 12:00 AM 9/2/2015 12:00 AM
2014 4/20/2014 12:00 AM 9/2/2014 12:00 AM
2013 4/16/2013 12:00 AM 8/31/2013 12:00 AM


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:  3/1/2019
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

Event Date Event Type Comments
2/25/2020 8:08:53 AM General I reset the clock on the fish facility mux reader to the correct time. I re-submitted the files rejected due to the incorrect time.
9/13/2019 7:00:00 AM SiteDown Collector turn off for the season at 9/13/2019 7am PST
3/1/2019 4:00:00 AM SiteUp Site start up at opening of 2019 season.
12/6/2018 10:00:00 PM SiteDown Site shut down at end of 2018 season.
5/25/2018 10:29:42 AM General The FS1001M antennas (21 thru 26) were taken off line because the fish handling facility is being renovated. I disabled data uploads for that reader until further notice. I repaired the rejected data files with antennas 21- 26 and resubmitted them.
4/6/2018 8:08:44 AM General I updated the time on the mux which was fast by 17 minutes.
8/31/2016 5:21:00 PM SiteDown Site shut down at end of 2016 season.
5/11/2016 9:05:39 AM General The exciter voltage level on antenna 07 was increased from 1 to 3. Antenna current increased from 3.5 to 4.8 amps.
5/6/2016 12:45:00 PM General The sampling sequence was adjusted at 12:45 on May 6, 2016 to sample antennas 5 and 7 continuously.
5/4/2016 8:00:00 AM General Master Controller sequence was changed to primary = 05 and secondary = 07, 08. Antenna 06 was removed from the sequence.
4/16/2016 5:21:00 PM SiteUp Site start up at opening of 2016 season.
7/16/2014 10:31:49 AM General Registered new site CFD - Cowlitz Falls Dam.
8/31/2013 5:21:00 PM SiteDown Site shut down at end of 2013 season.
4/16/2013 5:17:00 PM SiteUp Site opened for the 2013 season

No Archived Event Logs