Site Type

Site Name


MC1 - McNary Oregon Shore Ladder

Oregon Shore Adult Fishway at McNary Dam

Operated by:


First year:


Last year:




Site Contacts


Nicole Tancreto
(503) 595-3141


Don Warf
(509) 735-2773 x1


Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015 Ladder was dewatered January 27-February 28.
2016 1/1/2016 1/1/2017 Ladder dewatered February 1-27.
2015 1/1/2015 1/1/2016 Ladder was dewatered January 17-February 27.
2002 4/9/2002 1/1/2003 This was the first year of operation. The Oregon Shore ladder at MCN watered up on 3/8/02. The production PIT tag interrogation platform began operation at the McNary Oregon Shore adult ladder (and counting window) on 04/09/2002 around 14:00 PDT. Data from coils 03 through 12 was collected between 4/3/02 16:00 and 4/9/02 14:00 and submitted in interrogation file MC102099.S. Data from the counting window, coils 01 and 02 may precede this. NOTE: date/time stamps associated with fish records collected prior to 14:00 on 4/9/2002 relate to the time that data was retrieved from the transceivers and NOT the time that the fish transited the ladder.
2003 1/1/2003 1/1/2004 The McNary Oregon Shore Ladder was dewatered at 10:00am on 2/3/03. The ladder was rewatered at 11:00am on 2/24/03, but PTAGIS was not notified until a week later; the ladder weir PIT tag detectors were reactivated at 9:00am on 3/3/03, and the detectors at the counting window were reactivated at 3:10pm on 3/4/03.
2004 1/1/2004 1/1/2005 The McNary Dam Oregon Shore ladder was dewatered on January 8, 2004 for annual maintenance. The ladder was watered up to orifice flow on February 6, and to full flow on February 17.
2005 1/1/2005 1/1/2006 The MCN Oregon ladder was dewatered for winter maintenance at noon on Jan. 18. It watered-up to orifice flow on Feb. 16, and to full flow by mid-day on Feb. 17, 2005.
2006 1/1/2006 12/21/2006 The Oregon ladder was dewatered at about 0800h on Jan. 10 for annual service. It watered-up to orifice flow by 1600h on Jan. 12, and to full flow by Jan. 20. The ladder was dewatered to orifice flow on Dec. 20, and dewatered for annual maintenance on Dec. 21.
2007 3/5/2007 1/1/2008 The McNary Oregon shore ladder was dewatered between Dec. 21, 2006 and March 5, 2007 for annual maintenance and repair.
2008 1/1/2008 1/1/2009
2009 1/1/2009 1/1/2010 The McNary Oregon Shore ladder was dewatered between January 7 and February 28.
2010 1/1/2010 1/1/2011 The MCN Oregon ladder was dewatered for winter maintenance between Jan. 12 and Feb. 26, 2010. The picket leads that crowd fish through the counting window, which had been raised in October, 2009, were lowered into position on March 23, 2010, and remained in position until they were raised on Nov. 1.
2011 1/1/2011 1/1/2012 The McNary Oregon Shore ladder was dewatered for annual maintenance from Jan. 11 to Feb. 15. The picketed leads were pulled for the season on November 1; it is unknown when they were installed.
2012 1/1/2012 1/1/2013 Site down from January 24-25 for 27 hours due to electrical repairs to a transformer. Ladder was placed in orifice flow from 07:30-18:00 on February 29 for replacement of antennas.
2013 1/1/2013 1/1/2014 Ladder was dewatered from January 27-March 4.

Current and Historic Site Configurations

Config Seq: 100

Start Date: 3/7/2002

End Date:

Event Logs