Photos in this gallery are from the fish ladder located between Glover Mill Pond and what used to be Mill Pond in Pembroke. Also some downstream photos along Herring Brook.
All photos by Rob MacDonald Hanson, MA rjmacdonald@gmail.com
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Solar panel and control box for the new automated fish-counter. This was not here at the beginning of my fish counts for NSRWA. Seems as if this was added just…
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Fish ladder to the left and pond to the right. Automated fish counters on the right composed of several PVC tubes through which the fish pass.
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Top of the Alaska Steeppass fishway.
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Control box for the automated fish counters. This is an older photo as you'd now see additional solar panels installed here. Installed by the Massachusetts…
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I was told this is an Alaska SteepPass fishway. It's generally prefabricated and simply dropped into place assuming the appropriate mountpoints are present. This fish ladder style was developed in the late 1950's by the Alaska Department of Fish and Game.
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Apparently one of the problems with this ladder is controlling the waterflow to the right level. At one point, the water was flowing too fast and that was causing the herring to bounce out of the ladder. You can see a few of them in the bottom of the pool. One of the herring commissioners told me that the water flow has to be just right.
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Alaska steeppass fishway at Glover Mill Pond in Pembroke Ma.
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Alaska steeppass fishway at Glover Mill Pond in Pembroke Ma.
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Alaska steeppass fishway at Glover Mill Pond in Pembroke Ma.
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Alaska steeppass fishway at Glover Mill Pond in Pembroke Ma.
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Alaska steeppass fishway at Glover Mill Pond in Pembroke Ma.
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Fish counter at Glover Mill Pond, Pembroke.
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Automated fish counter at the top of the fish ladder, Glover Mill Pond, Pembroke MA.
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Automated fish counter at the top of the fish ladder, Glover Mill Pond, Pembroke MA.
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Herring Brook downstream from the Glover Mill Pond dam in Pembroke, MA.
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Pembroke: Herring Brook down stream from Mill Pond.
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Remnants of old river controls structures
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Old dam down-stream.
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Pembroke: Herring Brook down stream from dam
Ditto