Site Type

Site Name

 

DWL - Dworshak NFH adult trap

This array is located at the terminus of the Dworshak National Hatchery adult fish ladder. The ladder is 321 feet in length and originates in the North Fork Clearwater River. Fish ladder operations are intermittent and coincide with broodstock collection needs. All fish that ascend the ladder are ponded and held until they are inventoried and sorted. Wild fish are returned to the river, hatchery fish are held until spawning and those fish that are excess to broodstock needs are outplanted. Outplant locations vary with species and time of year.

Operated by:

USFWS

First year:

2010

Last year:

2017

RKM:

522.224.065

Site Contacts

Steward

Chris Griffith
Christopher_Griffith@fws.gov
(208) 476-2241

POC

Brett Turley
brett.turley@biomark.com
(208) 955-6771

Map

Operational Dates

Year Start Date End Date Notes
2014 2/3/2014 12/11/2014 Ladder is opened and closed at various times through the year. See event log for details.
2015 2/2/2015 11/12/2015
2016
2017
2010 2/19/2010 1/1/2011 First year of operation. Interrogation officially began on Friday, Feb. 19, after which the ladder was operated intermittently for broodstock collection. The adult ladder was closed for BY10 Steelhead on Friday, April 23, 2010. The adult ladder was opened for the collection of BY10 spring Chinook on Tuesday, June 1, but the multiplexer was not activated until noon on Monday, June 7. The ladder operated continuously until it was closed on July 25, 2010 at 10:00 AM. The ladder was opened for the collection of BY11 summer steelhead broodstock on October 5, 2010, operating intermittently until December 21.
2011 1/4/2011 1/1/2012 Ladder was opened intermittently between January 4 and April 15 for collection of BY11 summer steelhead broodstock; see event log for specific dates/times. Ladder was open from July 5 - August 5 for spring Chinook broodstock collection. The ladder was opened for collection fo BY12 summer steelhead on October 17 and will be operated intermittently until May 2012; see event log for exact dates/times of operation.
2012 1/1/2012 1/1/2013 Ladder is opened and closed at various times throughout the year. See event log for details.
2013 1/1/2013 1/1/2014 Ladder is opened and closed at various times throughout the year. See event log for details.

Current and Historic Site Configurations

Config Seq: 100

Start Date: 2/1/2010

End Date:

Event Logs

ARCHIVED EVENT LOGS