Interrogation Site Metadata

BO1 - Bonneville Bradford Is. Ladder

Status:   Active - Operational

Site Type: Adult Fishway  |  Organization: Pacific States Marine Fisheries Commission

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General Operational Period: Year Round
Start Date: 3/27/2002 12:00 PM

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This site monitors the Bradford Island fish ladder at Bonneville Dam. The ladder has two branches, one from the northeast side of the island and one from the southwest side, that meet below the visitor center and exit above the first powerhouse. Weir antennas are installed in most weirs in both the A and B branches. These antennas detect fish that pass through the weir orifices, but likely miss fish that pass over the weirs. There are also four antennas in the vertical slots above the counting window, that provide 99% detection efficiency. In 2018, two antennas were added that monitor the lamprey passage structure.

Current Operations

Last File Loaded:	BO1-2024-109-P-021.json
Date Last File Loaded:	4/18/2024 10:01 PM
Date Last File Opened:	4/18/2024 8:00 PM
Date Last File Closed:	4/18/2024 9:00 PM
Last Observation Tag:	3DD.003E128652
Last Observation Date:	4/18/2024 5:12 PM
Detection Summary:	Last Day's Observations

Scroll to:

• Contacts
• Location
• Operational History
• Configuration
• Equipment History
• Photos
• Event Log Summary
• Archived Event Logs

Contacts

Primary Contact:

Don Warf
dlwarf@psmfc.org
509-735-2773

Data Steward:

Nicole Tancreto
ntancreto@psmfc.org
503-595-3141

Location

Coordinates: 45.641509, -121.943902  |  River Km: 234

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
2024
2023	1/1/2023 12:00 AM	12/4/2023 11:52 AM
2022	2/25/2022 7:00 AM	1/1/2023 12:00 AM
2021	1/1/2021 12:00 AM	12/3/2021 7:00 AM
2020	2/27/2020 12:01 PM	1/1/2021 12:00 AM
2019	1/1/2019 12:00 AM	12/1/2019 7:00 AM
2018	2/26/2018 3:00 PM	1/1/2019 12:00 AM
2017	1/1/2017 12:00 AM	11/27/2017 12:00 AM	Ladder went to orifice flow on Nov 24
2016	2/25/2016 12:00 AM	1/1/2017 12:00 AM
2015	1/1/2015 12:00 AM	12/8/2015 12:00 AM	Ladder was dewatered December 8.
2014	2/27/2014 12:00 AM	1/1/2015 12:00 AM	Ladder was dewatered November 11-24.
2013	1/1/2013 12:00 AM	12/1/2013 12:00 AM	B-branch watered up on February 20. The ladder was taken to orifice flow on November 30 and dewatered on December 1.
2012	2/22/2012 1:50 PM	1/1/2013 12:00 AM	Ladder watered up on February 22. Both A and B branches were taken to orifice flow on September 25 at approximately 0700 PST. A-branch was returned to normal operations that afternoon. B-branch was dewatered for maintenance and remained dewatered for the rest of 2012.
2011	1/1/2011 12:00 AM	12/14/2011 10:00 AM	Water levels were dropped to orifice flow on September 16. On September 17, the B branch was dewatered for emergency repairs and the A branch was returned to service. Ladder was taken to orifice flow on December 12 and dewatered December 14.
2010	2/28/2010 6:00 PM	1/1/2011 12:00 AM	The Bradford Island fishway, which was dewatered for winter maintenance on Dec. 7, 2009, returned to service on Feb. 28, 2010.
2009	1/9/2009 12:00 AM	12/7/2009 12:00 PM	The Bradford Island ladder was dewatered from Dec. 3, 2008 until January 9, 2009 for winter maintenance. The ladder went to orifice flow on Dec. 4 and was dewatered for winter maintenance on Dec. 7, 2009.
2008	2/29/2008 3:00 PM	12/3/2008 12:00 PM	Bradford Island fish ladder was dewatered for scheduled winter maintenance on December 3, 2008.
2007	1/1/2007 12:00 AM	12/17/2007 12:00 PM	The Bradford Island Fishway was taken to orifice flow on Dec. 14, and completely dewatered on Dec. 17 for scheduled annual maintenance.
2006	2/25/2006 12:00 AM	1/1/2007 12:00 AM	The Bradford Island ladder, which had been dewatered since Dec. 5, 2005, was watered up on Feb. 25, 2006. This is the first year of operation with PIT tag antennas in the vertical slots above the counting window, in addition to the existing orifice antennas in the A- and B- branches.
2005	1/1/2005 12:00 AM	12/5/2005 8:30 AM	The Bradford Island ladder was dewatered on December 5, 2005 to prepare for the constructiona and installation of the new PIT tag antennas in the vertical slots upstream of the Oregon Shore Visitors Center.
2004	1/1/2004 12:00 AM	1/1/2005 12:00 AM	Facility was dewatered on 1/16/04 in response to an oil spill at TDA, two days before a scheduled dewatering for annual maintenance. Facility returned to operation at 1600h on Feb. 12, 2004
2003	1/1/2003 12:00 AM	1/1/2004 12:00 AM	The Bradford Island Fish Ladder was dewatered from 2/3/03 08:00 until 2/27/03 17:00 for annual inspection and maintenance.
2002	3/27/2002 12:00 PM	1/1/2003 12:00 AM	This was the first year of operation. Temporary configuration of BO1 (3/27/02 - 4/26/02): Bradford Island Left Branch A, Weir 48 (coils 05, 06) & Weir 49 (coils 03, 04) Bradford Island, Right Branch B Weir 45 (coils 1B, 1C) & Weir 46 (coils 19, 1A). These coils began interrogation at noon on 3/27/02. Data were submitted manually on Monday, Wednesday and Friday until permanent installation was completed. NOTE: The date/time stamps associated with fish records collected during this temporary configuration are times that data were collected, and not times that fish transited the ladder.

Configuration

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:

100 110 120

Start Date:  4/30/2018

End Date:  ----

Antenna Group	Transceiver ID	Antenna ID
Lamprey Passage	F1	F1
Lamprey Passage	F2	F2
VERTICAL SLOT DETECTORS	01	01
VERTICAL SLOT DETECTORS	02	02
VERTICAL SLOT DETECTORS	03	03
VERTICAL SLOT DETECTORS	04	04
A-BRANCH WEIR 50	05	05
A-BRANCH WEIR 50	06	06
A-BRANCH WEIR 49	07	07
A-BRANCH WEIR 49	08	08
A-BRANCH WEIR 48	09	09
A-BRANCH WEIR 48	0A	0A
A-BRANCH WEIR 47	0B	0B
A-BRANCH WEIR 47	0C	0C
A-BRANCH WEIR 46	0D	0D
A-BRANCH WEIR 46	0E	0E
A-BRANCH WEIR 45	0F	0F
A-BRANCH WEIR 45	10	10
A-BRANCH WEIR 44	11	11
A-BRANCH WEIR 44	12	12
A-BRANCH WEIR 43	13	13
A-BRANCH WEIR 43	14	14
B-BRANCH WEIR 50	15	15
B-BRANCH WEIR 50	16	16
B-BRANCH WEIR 49	17	17
B-BRANCH WEIR 49	18	18
B-BRANCH WEIR 48	19	19
B-BRANCH WEIR 48	1A	1A
B-BRANCH WEIR 47	1B	1B
B-BRANCH WEIR 47	1C	1C
B-BRANCH WEIR 46	1D	1D
B-BRANCH WEIR 46	1E	1E
B-BRANCH WEIR 45	1F	1F
B-BRANCH WEIR 45	20	20
B-BRANCH WEIR 44	21	21
B-BRANCH WEIR 44	22	22
B-BRANCH WEIR 43	23	23
B-BRANCH WEIR 43	24	24

Site Configuration Diagrams:

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:

Antenna Size Antenna Type Communications Power Supply Tag Technology Transceiver Firmware Transceiver Type

Show Current Equipment

Show All Equipment

Equipment Code	Description	Start Date	End Date

Photos

Archived Event Logs

BO1_2002 | BO1_2003 | BO1_2004 | BO1_2005 | BO1_2006 | BO1_2007 | BO1_2008 | BO1_2009 | BO1_2010 | BO1_2011 | BO1_2012 | BO1_2013 |