Lower Granite Dam Steelhead Counts

Lower granite dam has one fish ladder with entrances on both shores to provide a passage route for upstream migrating fish including adult salmon and steelhead lamprey shad and others.

Lower granite dam steelhead counts.

Corps of engineers fish reporting site dam date of count daily count total to date in 2020 total to date in 2019 5 year average total count to date bonneville oct 1 446 104 286 66 091 132 844 lower granite oct 1 1 623 28 838 12 500 33 485 counts include wild and hatchery origin fish. 2020 steelhead count from july 1 to december 31 2020 to view winter passage at bonneville dam go to. At lower granite dam on the snake river daily steelhead counts recently ranged from a low of 17 and a high of 38. Fish trapping season is underway and our crew is working hard with other agencies at lower granite dam to collect information on adult and juvenile salmon and steelhead.

Jacks are not included in the count. Part of our project focuses on juvenile. As a result the adult passage counts at rocky reach dam are incomplete for both days. Some video counts between 8 22 2011 9 19am to 9 05 2011 9 36am and between 9 23 2011 11 28am to 10 19 2011 7 52pm were not recorded so passage counts during this period remain incomplete.

A lot of work and research goes on at lower granite dam so we will be giving updates throughout the year to help you understand some of the work we are doing and what we are learning. It is barely ahead of last year s count of 1 408 at this time. Idaho s steelhead update august 21 2020 by joe dupont joe dupont hi everybody. I know many people plan their time off to steelhead fish in idaho and have been eagerly waiting to hear what idaho s steelhead run is going to be like this year.

Well wait no longer i have some information to share with you. We would like to show you a description here but the site won t allow us. Spring chinook daily counts from 8 1 2011 9 15 2011. 2020 adult chinook salmon count from august 1 to december 15 2020 dam date of count daily adult count total to date in 2020 total to date in 2019 5 year average total count to date bonneville oct 1 2 321 362 520 249 906 400 704 lower granite oct 1 154 22 703 13 335 26 210 counts include both hatchery and wild origin adults.

Passage routes operated for downstream migrating fish are the spillway a spillway weir and a juvenile bypass system.