Site Type

Site Name

 

NBA - Nursery Bridge Adult

Nursery Bridge Dam Fishways (both), Walla Walla River at Milton-Freewater, OR.

Operated by:

CTUIR

First year:

2003

Last year:

2017

RKM:

509.072

Site Contacts

Steward

June Johnson
Junejohnson@ctuir.org
(514) 429-7545

Map

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015
2016
2015 1/1/2015 1/1/2016
2017
2003 10/3/2003 1/1/2004 The start date was derived from the first available interrogation file.
2004 1/1/2004 1/1/2005 In addition to the existing coil (01) originally installed in the right bank fishway, a second coil (B1) was installed in the left bank fishway on May 17, 2004. Due to an equipment failure, there are no data available for coil #01 at NBA between 12:00 on 8/2/04 and 21:00 on 8/8/04.
2005 1/1/2005 1/1/2006 The old (West) ladder was dewatered, and the PIT tag antenna de-activated, on June 24, 2005.
2006 1/1/2006 1/1/2007 The new (East) ladder is the primary passage route at this site. The old (West) ladder was watered-up on January 3; the PIT tag antenna at this ladder was not re-activated at that time. It was replaced, and re-activated, on March 6. The old (West) ladder antenna was shut off during a June 27 site inspection because the left (West) bank channel was dry. A second antenna was installed in the new (East) ladder below the existing antenna on July 19. The old (West) ladder antenna was re-installed and re-activated on December 12.
2007 1/1/2007 1/1/2008 No data were collected between Nov. 30 and Dec. 10 due to an equipment failure.
2008 1/1/2008 1/1/2009 No data were collected between Feb. 3 and Mar. 12 due to a CPU board malfunction. There was a power outage between 1PM on May 7 and the morning of May 12.
2009 1/1/2009 1/1/2010 On June 29, a berm was created to divert all summer flow away from the West ladder and into the East ladder; these is no spill at antennae #3 - #5. Antenna #2 in the East Side ladder was discovered to be vandalized on July 16; the site was shut down from July 16 until antennas #1 and #2 were repaired and reinstalled on July 27. The East Ladder (antennae #1 and #2) was shut down for maintenance between August 14-24. A power surge shut down both the computer and MUX between midnight on Nov. 28 and 10:34 on Nov. 30; no data are available during this interval.
2010 1/1/2010 1/1/2011
2011 1/1/2011 1/1/2012 West Ladder (coil B1) was down from June 23-September 26.
2012 1/1/2012 1/1/2013
2013 1/1/2013 1/1/2014

Current and Historic Site Configurations

Config Seq: 150

Start Date: 9/21/2009

End Date:

Config Seq: 140

Start Date: 9/27/2007

End Date: 9/21/2009

Config Seq: 130

Start Date: 3/14/2007

End Date: 9/27/2007

Config Seq: 120

Start Date: 7/20/2006

End Date: 3/14/2007

Config Seq: 110

Start Date: 5/17/2004

End Date: 7/20/2006

Config Seq: 100

Start Date: 10/3/2003

End Date: 5/17/2004

Event Logs