Dart adult passage daily count.
Lower granite fish 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.
Small group and family tours of the powerhouse and juvenile fish facility may be available upon request throughout.
From november through march video tape fish counting occurs at us army corps of engineers dams with fish ladders on the columbia and snake rivers.
2020 steelhead count from july 1 to december 31 2020 to view winter passage at bonneville dam go to.
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.
More detailed information about count schedules at each dam may be found in the current.
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The visitor center is open seven days a week from 8 00 a m.
Fish counts from each fishladder first 2 queries below go back to 1981.
Jacks are not included in the count.
Notes on the dart adult passage dataset.
Lower granite lock and dam also has a visitor center that offers movies inter active displays brochures guided tours and a friendly and helpful staff.
Lower monumental little goose and lower granite on the snake river.
Current counts can be viewed at.
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.
Due to changes in how agencies share fish count data to the public online critfc no longer displays them on our website.
Fish counts are estimates of the actual numbers of passing fish.
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.
Fish counting by video tape takes at least a few days to process.
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.
Usace dams video and live counting.
