Lower Granite Fish Counts

The fish passage center.

Lower granite fish counts.

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. More detailed information about count schedules at each dam may be found in the current. Jacks are not included in the count. Fish counting by video tape takes at least a few days to process.

The visitor center is open seven days a week from 8 00 a m. 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. Current counts can be viewed at. Fish counts from each fishladder first 2 queries below go back to 1981.

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. 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. Due to changes in how agencies share fish count data to the public online critfc no longer displays them on our website. Passage routes operated for downstream migrating fish are the spillway a spillway weir and a juvenile bypass system.

The fish counters have to make collect and read the tapes and then submit their fish counts. Lower monumental little goose and lower granite on the snake river. Usace dams video and live counting. Notes on the dart adult passage dataset.

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. Dart adult passage daily count. 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 counts are estimates of the actual numbers of passing fish.

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