Skip to Main Content
PTAGIS logo link back to home page

Interrogation Site Metadata

LWB - Lower Wenatchee Barge

Status:   Active - Operational
Site Type: Instream Remote Detection System  |  Organization: Washington Dept. of Fish and Wildlife
General Operational Period: Year Round
Start Date: 6/16/2022 12:00 AM

The site consists of a single 60 ft. wide floating barge with twelve 7.5 ft. vertical fins. Each pair of fins act as a single antenna. The purpose for operating this site is to improve detections of outmigrating juvenile salmonids. The site is expected to operate year-round with exceptions to high-flow periods where damage to antennas may not be avoidable.

Current Operations

Last File Loaded: LWB-2023-258-P-001.json
Date Last File Loaded: 9/27/2023 3:30 PM
Date Last File Opened: 9/15/2023 11:16 AM
Date Last File Closed: 9/27/2023 12:34 PM
Last Observation Tag: 3DD.003DA291E3
Last Observation Date: 9/27/2023 12:34 PM
Detection Summary: Last Day's Observations


Primary Contact:

Garrett Rains

Data Steward:

Matthew Stilwater


Coordinates: 47.459542, -120.340215  |  River Km: 754.001

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
2022 6/16/2022 12:00 AM 11/29/2022 12:00 AM Start and end dates based on timer tags.


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:
Start Date:  6/16/2022
End Date:  ----

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:
Equipment Code Description Start Date End Date

No Photos

Event Log Summary

Event Date Event Type Comments
5/30/2023 10:00:00 AM SiteUp

Lower Wenatchee Barge floating array was installed on Tuesday 30 May. All fins were deployed and working. 

12/27/2022 3:36:00 PM SiteDown

Barge has been drug down river in ice flows and deposited atop a gravel bar array was turned off. 

11/28/2022 1:26:00 PM SiteDown

Site put in standby mode to conserve power during winter storm events blocking solar power. 

11/15/2022 10:33:00 AM General

Arrived at site and found fins on antennas 1-5 popped up. Replaced carabiners and reset fins so that antennas 3-6 are now in the down fishing position. Repositioned the raft towards right bank and added a small anchor to prevent barge from running aground on left bank during low flow-high wind events. 

11/7/2022 8:54:00 AM General

Visited site  on 11/7 reset fins on antennas 3 (new) and 5, 6(found on 10-26). All antennas now deployed. Adjusted barge position to thalwag.

10/31/2022 12:18:00 PM General

added cell modem to site for remote downloading of data

10/26/2022 12:18:00 PM General

Barge was found stuck on right bank. Three fins river right are popped free in upright position.

9/22/2022 3:44:00 PM General

Array has began running on this date. 

No Archived Event Logs