Site Type

Site Name


LD2 - Lebanon Dam North Ladder

Instream detection array in the North 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 Controller and 4x Biomark IS1001-ACNs. Additional hardware includes a cell modem, grid supplied power which charges 24V battery-banks to isolate power from the Master Controller and serve as battery backup in case of a power outage. The antenna configuration consists of upstream, middle, and downstream arrays. The upstream array is a single pass-thru antenna at the ladder exit. The middle array consists of two pass-through antennas which cover every route through the #5 ladder weir. One antenna spans the upstream side of the weir and one antenna covers the auxiliary water chute. The downstream array is a single pass-thru antenna on the downstream side of the #5 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 4/16/2015 12/30/2015 Start and end dates based on timer tags.
2016 1/19/2016 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 12/16/2018 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: 4/16/2015

End Date:

Event Logs