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Interrogation Site Metadata

TMJ - 3-Mile Falls Dam Smolt Bypass

Status:   Decommissioned
Site Type: Juvenile Fish Bypass Facility  |  Organization: Oregon Dept. of Fish and Wildlife
General Operational Period:
Start Date: 3/9/1999 3:25 PM
End Date: 7/11/2006 8:15 AM

Three Mile Falls Dam (Umatilla River) Juvenile Fish Bypass System. The TMF smolt bypass trap is located at the irrigation diversion screen on the west shore at TMF.


Data Steward:

Doug Peterson


Coordinates: 45.882307, -119.325853  |  River Km: 465.005

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
2006 2/1/2006 10:00 AM 7/11/2006 8:15 AM The trap was out service between April 4 and April 14 due to high flows. The trap was shut down for the season on July 11 due to insufficient water and fish passage. This is the last year for TMJ, which was combined with TMA to form TMF on Nov. 8, 2006.
2005 2/1/2005 9:30 AM 6/30/2005 8:30 AM
2004 2/12/2004 1:00 PM 7/7/2004 8:34 AM Prior to start-up, the TMJ installation was upgraded from two FS2001 transceivers to two FS1001 transceivers; the facility now receives O&M support from PTAGIS staff in Kennewick. Due to high silt and debris loads in the Umatilla River, the trap at TMJ was removed from service between 1345h on 5/24/04 and 1230h on 6/1/04.
2003 3/3/2003 9:15 AM 7/1/2003 9:00 AM Start date reflects beginning of interrogation activities. Between 6/13 and 6/27, the detectors were turned off most or all of the time. During this period, all fish were manually hand-scanned; if a PIT tag was detected, it was reported as a recapture. The interrogation site was shut down for the season at ~9:00 am on 7/1/03.
2002 3/7/2002 2:00 PM 6/16/2002 8:20 AM
2001 3/8/2001 6:00 AM 6/14/2001 1:00 PM
2000 3/8/2000 11:32 AM 6/18/2000 5:25 AM Dates and times based on first/last reported detections.
1999 3/9/1999 3:25 PM 7/8/1999 12:01 PM Dates and times based on first/last reported detections.


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:  1/1/2006
End Date:  7/12/2006

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

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Event Log Summary

Event Date Event Type Comments

Archived Event Logs