Interrogation Site Metadata
WEJ - Wells Dam Bypass Bay Sample
Status: Active - OperationalGeneral Operational Period: Seasonally
Start Date: 4/27/2016 12:00 AM
Bypass Bay 2 on the right (west) side of Wells dam on the Columbia River, Washington. During the first year of operation, the top middle four windows of the 64 open windows in the bypass baffle were monitored by antennas to detect a sample of PIT tagged fish using the bypass bay. In 2017, the configuration was expanded to monitor 16 of the 64 open windows in the middle right column.
Current Operations
| Last File Loaded: | WEJ-2024-115-P-006.json |
| Date Last File Loaded: | 4/24/2024 8:20 PM |
| Date Last File Opened: | 4/24/2024 10:50 AM |
| Date Last File Closed: | 4/24/2024 12:50 PM |
| Last Observation Tag: | 3DD.003E0E284A |
| Last Observation Date: | 4/22/2024 7:43 PM |
| Detection Summary: | Last Day's Observations |
Contacts
Location
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 | 3/29/2023 12:00 AM | 8/11/2023 12:00 AM | Start and end dates based on timer tags. |
| 2022 | 1/1/2022 12:00 AM | 8/11/2022 12:00 AM | Start and end dates based on timer tags. |
| 2021 | 1/1/2021 12:00 AM | 1/1/2022 12:00 AM | Start and end dates based on timer tags. |
| 2020 | 1/1/2020 12:00 AM | 1/1/2021 12:00 AM | Start and end dates based on timer tags. See event logs for additional operational information. |
| 2019 | 1/1/2019 12:00 AM | 12/31/2019 12:00 AM | Start and end dates based on timer tags. |
| 2018 | 4/2/2018 12:00 AM | 1/1/2019 12:00 AM | Bypass operations concluded August 19, but detections can still occur of fish that are not passing through bypass unit. |
| 2017 | 4/6/2017 12:00 AM | 8/30/2017 12:00 AM | Bypass spill begins midnight April 8. Bypass operations concluded August 19, site was taken down August 30. Detections between these two date are of fish milling in the forebay. |
| 2016 | 4/27/2016 12:00 AM | 9/16/2016 7:20 AM | Spill terminated at midnight on August 19. Equipment was removed September 16. |
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.
| Antenna Group | Transceiver ID | Antenna ID |
|---|---|---|
| Baffle Section 1 | A0 | A1 |
| Baffle Section 1 | A0 | A2 |
| Baffle Section 2 | A0 | A3 |
| Baffle Section 2 | A0 | A4 |
| Baffle Section 2 | A0 | A5 |
| Baffle Section 3 | A0 | A6 |
| Baffle Section 3 | A0 | A7 |
| Baffle Section 3 | A0 | A8 |
| Baffle Section 4 | B0 | B1 |
| Baffle Section 4 | B0 | B2 |
| Baffle Section 4 | B0 | B3 |
| Baffle Section 5 | B0 | B4 |
| Baffle Section 5 | B0 | B5 |
| Baffle Section 5 | B0 | B6 |
| Baffle Section 6 | B0 | B7 |
| Baffle Section 6 | B0 | B8 |
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.
| Equipment Code | Description | Start Date | End Date |
|---|
Photos
Event Log Summary
This displays the last 25 events, to see the full history, log in to the Event Logs.
| Event Date | Event Type | Comments |
|---|---|---|
| 4/9/2024 12:00:00 AM | SiteUp |
Bypass operations at Wells Dam started at 00:00 on 04/09/2024. Any detections on WEJ in 2024 prior to that date and time were not passage events because bypass spill had not yet started. |
| 4/6/2024 10:00:00 AM | SiteUp |
Installed the baffles and updated firmware. Any broken conduit covers were replaced. Nodes A6, B1, B2, and B3 are the nodes that got replaced. |
| 8/11/2023 10:36:00 AM | SiteDown | Site was shut down and antenna baffles uninstalled until March of 2024. |
| 8/10/2023 2:00:00 PM | SiteDown |
Baffles are uninstalled until next spring. |
| 7/24/2023 11:59:00 PM | SiteDown |
Wells Juvenile Bypass Operations terminated at midnight on 7/24/2023, with the closing of the spillway gates. Although the WEJ PIT-tag detection system in the intake for Spillway 2 remains partially functional (see previous event log from late May 2023 regarding damage to the system), the spill gates in Spillway 2 are closed. Therefore, detections after midnight on 7/24/2023 do not represent passage events, but instead are fish moving through or near the antennas that are located in the spillway intake slots on the opposite (forebay) side of the dam from the spillway gates that are on the tailrace side. |
| 5/23/2023 2:34:00 PM | General |
Readers A6, B1, B2 and B3 have gone offline and we cannot communicate with them. They were possibly damaged due to increased water flows through the spillway. The extent of the damage will be unknown until the baffles are removed from the spillway. |
| 4/11/2023 8:35:00 AM | General |
A cell modem was installed at the Master Controller enclosures to upload data from both MCs directly to Biomark data server. |
| 3/29/2023 2:00:00 PM | SiteUp |
The baffle antennas were installed on 3/29 and site was turned on for 2023 season. |
| 8/10/2022 11:30:00 AM | SiteDown |
Bypass spill through Spillway 2 ceased on 08/10/2022 00:20, and resumed intermittently between 08:30 and 11:30. Between 08:00 and 11:30, the frames containing the antennas for site WEJ were removed from the spillway gate slot to facilitate maintenance of spillway and the underlying turbine-unit intakes. WEJ data computers were taken off line at approximately 11:40. Components for WEJ will be reinstalled in late-March 2023, and the site will be up by early April 2023. |
| 4/9/2021 12:00:00 AM | General | Bypass spill began at 12:00 AM 4/9/2021, and the bypass will operate until midnight on August 9, 2021. Detections on WEJ antennas during bypass operations are likely downstream passage events; detections outside of the annual bypass operations are not passage events, but are fish milling in the forebay of Wells Dam. Even during bypass spill, the water velocity through the antennas is low enough that some fish may avoid entrainment through the spillway after detection. |
| 8/20/2020 12:00:00 AM | General | Wells bypass operations terminated at midnight on 8/19/2020, at which time the spillway for the WEJ sampling array was closed, precluding fish passage via that route. Any detections on WEJ beginning at 12:00 AM 8/20/2020 through March 2021 are not passage events, but are fish milling around the WEJ antennas in the Wells Dam forebay. |
| 8/20/2019 9:07:00 AM | General | Bypass operations at Wells Dam ended at midnight (PDT) on August 19, 2019. WEJ detections continue, but such detections are not bypass events because the spillway bypass gates are closed. Configuration of WEJ antennas in the forebay trash-rack slots upstream of the spillway gates allows for detections of fish swimming by or through antennas even when the spillway gates are closed. Bypass operations will resume in April 2020. Therefore, fish detected at WEJ from 8/20/2019 to April 2019 are not passing through the bypass unit. |
| 4/22/2019 8:00:00 AM | General | The gate for Bypass Bay 2 (WEJ) at Wells Dam was reopened around 1:00 PM (PDT) on April 22, 2019. As noted in the event log for 4/10/19, detections on WEJ during the interim between the gate closure on 4/10/19 and the reopening on 4/22/19 were not passage events through Bypass Bay 2, but those tagged fish may have passed through adjacent bypass bays that were operating during that period. |
| 4/10/2019 8:00:00 AM | General | The gate for Bypass Bay 2 (WEJ) at Wells Dam was closed around 8:00 AM (PDT) on April 10, 2019, to facilitate commissioning of Turbine Unit 2 (intakes located under one of the three bypass intakes that comprise Bypass Bay 2), and reopened around 1:00 PM (PDT) on April 22, 2019. Detections on WEJ during the interim between the gate closure on 4/10/19 and the reopening on 4/22/19 were not passage events through Bypass Bay 2, but those tagged fish may have passed through adjacent bypass bays that were operating during that period. |
| 4/9/2019 9:07:00 AM | General | Bypass operations at Wells Dam began at 00:00 (PDT) on April 9, 2019. |
| 12/31/2018 7:50:20 PM | SiteUp | WEJ recovered from a power outage that took it down the morning of December 26, 2018. Site recovered on December 31, 2018 7:50:20 AM (PST) |
| 12/26/2018 12:00:00 PM | SiteDown | A power outage took WEJ down the morning of December 26, 2018, but battery backup allowed detections through 12:10:33 PM. Site recovered on December 31, 2018 7:50:20 AM (PST) |
| 8/20/2018 12:00:00 AM | General | Bypass operations at Wells Dam ended at midnight (PDT) on August 19, 2018. WEJ detections continue, but such detections are not bypass events because the spillway bypass gates are closed. Configuration of WEJ antennas in the forebay trash-rack slots upstream of the spillway gates allows for detections of fish swimming by or through antennas even when the spillway gates are closed. Bypass operations will resume in April 2019. Therefore, fish detected at WEJ from 8/20/2018 to April 2019 are not passing through the bypass unit. |
| 4/2/2018 1:23:36 PM | SiteUp | Site set up to upload tag files to PTAGIS. I also enabled site checking. |
| 2/7/2018 8:23:00 AM | General | I updated firmware to both Master Controllers and all IS1001 readers to version 1.6.3. Also performed Windows updates on both data computers. |
| 8/30/2017 1:50:51 PM | General | Bypass operations at Wells Dam ended on 8/19/2017 at 24:00, and will resume in April 2018. The WEJ site was taken down on 8/30/2017 at 13:43, and will resume data transmission upon resumption of bypass operations in April 2018. The three tags detected between the end of bypass operations on 8/19/2017 and taking the site down on 8/30/2017, were fish milling in the Wells forebay, rather than passage events. |
| 8/30/2017 1:43:47 PM | SiteDown | I turned off site checking and uploading of data files for the season. |
| 7/12/2017 12:26:00 PM | General | Performed data computer updates. |
| 4/7/2017 10:50:53 AM | General | 12 antennas and IS1001s and a Master Controller were installed at bypass bay 2 in addition to the existing 4 antennas and Master Controller to make a total of 16. The top 8 antenna IDs are A1 through A8 and the bottom 8 antenna IDs are B1 through B8. The two MCs and the 16 IS1001s were flashed with version 1.6.2 The spillbay is set to open on 4/8. |
| 9/1/2016 10:09:06 AM | SiteDown | Site was shut down on 9/1/16 at 07:20 and the antennas were removed from the water. It will be down until spring of 2017. |