Interrogation Site Metadata
LTR - Lower Tucannon River
Status: Active - OperationalGeneral Operational Period: Year Round
Start Date: 10/1/2005 12:00 AM
LTR is a permanent instream PIT tag interrogation site at RKM 2.5 on the Tucannon River. The current configuration installed in September 2026 consists of two rows of antennas. The upstream row consists of one 6', two 20' and one 10' HDPE antennas. The downstream row consists of three 20' HDPE antennas. All antennas are installed in flat-plate configuration. Each antenna is powered by a Biomark IS1001 ACN with all ACN's connected to a Biomark IS1001-MC master controller. The antennas were built and installed by WDFW. The electrical power at the site is provided by three 200 watt and three 140 watt solar panels. Data currently will be downloaded through Biomark's Biologic via Hughesnet satellite modem. No environmental monitors are installed at this time. This site has variously consisted of one or two groups of arrays, about a kilometer apart, located near the mouth of the Tucannon River. From Oct. 2005 until April 2008 the downstream array group consisted of two tandem "log" antenna arrays that spanned the low-water channel above the boat ramp. The upstream array group was located at an abandoned railroad bridge abutment upstream of Hwy 261 on the Tucannon River downstream from Starbuck. The upstream array (A0) operated from Oct. 2005 until January 2009. Its various configurations included both pass-through and pass-over antennas. A single array (C0) with six PVC pipe antennas powered by a QST Qube was re-deployed above the boat ramp in Sept. 2009. Responsibility for site operations transferred from USFWS to WDFW on Jan. 7, 2010. The C0 in-stream array was relocated below the Hwy 261 bridge on Sept. 29, 2010. The Qube was replaced with a Biomark IS1001-MC November 2018.
Current Operations
| Last File Loaded: | LTR-2026-317-P-005.json |
| Date Last File Loaded: | 11/13/2026 10:41 PM |
| Date Last File Opened: | 11/13/2026 6:06 PM |
| Date Last File Closed: | 11/13/2026 10:05 PM |
| Last Observation Tag: | 3DD.003D7E855C |
| Last Observation Date: | 11/13/2026 10:05 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.
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.
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.