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Interrogation Site Metadata

LD1 - Lebanon Dam South Ladder

Status:   Decommissioned
Site Type: Adult Fishway  |  Organization: Oregon Dept. of Fish and Wildlife
General Operational Period: Seasonally
Start Date: 5/27/2015 12:00 AM
End Date: 11/15/2018 12:00 AM

Instream detection array in the south adult fish ladder at Lebanon Dam on the South Santiam River, a tributary to the Willamette River. The array is one of four interrogation sites located at or near the dam. This site is monitored by one Biomark IS-1001-Master Controler and 4x Biomark IS1001-ACNs. Addional hardware includes a cell modem, grid-supplied power configured to charge 24V battery-banks to isolate power for the Master Controller and serve as battery backup in the case of a power outage. The antenna configuration in the ladder consists of an upstream and a downstream array (making efficiency estimates possible). The upstream array is a line of three separate pass-thru antennas. Each antenna spans from pier to pier, and completely interrogates the up-stream most ladder-exit. The downstream array consists of a single antenna, which interrogates the up-stream most ladder weir. All antennas are low-profile ferrite-shielded pass-through antennas. Site is no longer active.


Data Steward:

Derrek Faber


Coordinates: 44.516100, -122.862744  |  River Km:

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
2018 1/1/2018 12:00 AM 11/15/2018 12:00 AM Start and end dates based on timer tags.
2017 1/1/2017 12:00 AM 1/1/2018 12:00 AM Start and end dates based on timer tags.
2016 1/7/2016 12:00 AM 1/1/2017 12:00 AM Start and end dates based on timer tags.
2015 5/27/2015 12:00 AM 12/26/2015 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.

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Start Date:  5/27/2015
End Date:  11/15/2018

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.

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Equipment Code Description Start Date End Date


Event Log Summary

Event Date Event Type Comments
11/30/2018 3:43:00 PM SiteDown Flooding badly damaged site, beyond immediate repair. Plans to repair site in spring/summer of 2021.
12/22/2017 9:20:00 AM SiteUp Site back up. Ladder antennas now working again after fixing cable connection.
11/25/2017 9:30:00 PM SiteDown Site Down. Likely cable short on downstream antenna. High Water over-topped antenna causing cable to abrade. Will fix as soon as antenna is accessible again.
10/16/2016 12:00:00 PM General High noise today, system wide
9/30/2016 12:00:00 PM SiteUp System operational
9/28/2016 12:00:00 PM SiteDown System down
8/17/2016 12:00:00 PM General Moderate noise on antenna #1 from 7/29/2016 to 8/17/2016
4/30/2016 12:00:00 PM SiteUp System operational
4/28/2016 12:00:00 PM SiteDown System down
2/9/2016 12:00:00 PM SiteUp Antenna #4 in operation again
1/19/2016 3:18:00 PM SiteUp Site Up. Communication restored for Antennas 1-3. Still working on number 4.
1/15/2016 10:48:00 AM SiteDown Site down. Node 4 replacement caused miscommunication between nodes and MC.
1/7/2016 10:48:00 AM SiteUp Site up. Antennas 1-3 up. Removed node for Antenna 4 for replacement.
12/26/2015 8:54:00 AM SiteDown Site Down. Master Controller won't power-up, sent back to Biomark for repair. Plan to replace week of 1/4/2016. No known reason for MC malfunction.
12/22/2015 12:00:00 PM SiteUp System operational
12/20/2015 12:00:00 PM SiteDown System down
11/13/2015 12:00:00 PM General Antenna #4 deployed
10/6/2015 12:00:00 PM General High noise today, full system
9/23/2015 12:00:00 PM SiteUp System operational
8/26/2015 12:00:00 PM SiteDown System down
7/30/2015 10:43:00 AM General Registered new site LD1 in PTAGIS.

No Archived Event Logs