Site Type

Site Name


LWL - Ltl. White Salmon NFH returns

Adult fish ladder allowing passage from the Little White Salmon River into the adult holding ponds at Little White Salmon NFH. All fish captured in the ponds are sorted and may either be surplused/spawned or returned to the river via an underground tube. The tube empties into the Little White Salmon River directly below the fish ladder entrance.

Operated by:


First year:


Last year:




Site Contacts


Brian Davis
(503) 975-9898


James Archibald
(360) 604-2573


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 11/14/2014 Contact data steward for dates when ladder was open in spring. Fall open/close times can be found in event log. Ladder dewatered November 14.
2016 1/8/2016 11/6/2016 Start and end dates based on timer tags.
2015 1/1/2015 1/1/2016
2017 1/18/2017 11/9/2017 Start and end dates based on timer tags.
2009 10/8/2009 11/17/2009 First year of operation.
2010 5/6/2010 9/7/2010 The detection equipment was activated for the year on May 6, 2010. The ladder entrance was opened for fish collection between 05/06/2010 @ 11:37am and 05/07/2010 @ 10:30am; on 05/18/2010 from 2:00 to 3:30pm; on 06/15/2010 from 2:00 to 2:15pm; and on 06/17/2010 from 1:00 to 1:11pm. The adult ladder was dewatered on Sept. 7, 2010.
2011 5/10/2011 11/25/2011 The site collects data continuously but the ladder is only open on specific/dates times. See event log for details.
2012 5/3/2012 1/1/2013 Ladder watered up and was open for fish collections from May 3-16. It was opened several more times during 2012 for short periods; see the 2012 event log for specific dates and times.
2013 1/1/2013 1/1/2014 See event log for dates and times when the ladder was open.
2018 5/7/2018 11/22/2018 Start and end dates based on timer tags.
2019 4/22/2019 11/6/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 120

Start Date: 11/1/2012

End Date:

Config Seq: 110

Start Date: 4/12/2012

End Date: 11/1/2012

Config Seq: 100

Start Date: 10/1/2009

End Date: 4/12/2012

Event Logs