Site Type

Site Name


LD1 - Lebanon Dam South Ladder

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.

Operated by:


First year:


Last year:



Site Contacts


Derrek Faber
(541) 296-1349


Operational Dates

Year Start Date End Date Notes
2015 5/27/2015 12/26/2015 Start and end dates based on timer tags.
2016 1/7/2016 1/1/2017 Start and end dates based on timer tags.
2017 1/1/2017 1/1/2018 Start and end dates based on timer tags.
2018 1/1/2018 11/15/2018 Start and end dates based on timer tags.
2019 Site was damaged beyond repair in late 2018 and not operated in 2019. Repairs planned for 2021.

Current and Historic Site Configurations

Config Seq: 100

Start Date: 5/27/2015

End Date:

Event Logs