2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment 1 2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment Photo 1. Entering river with vibratory hammer attached to excavator Photo 2. Hammering piles to refusal
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Photo 2. Hammering piles to refusal Jam... · 2018. 10. 26. · Hammering piles to refusal . 2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
Photo 1. Entering river with vibratory hammer attached to excavator
Photo 2. Hammering piles to refusal
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 3. Excavating trench for first piece in bottom layer of jam
Photo 4. Insertion of first piece
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 5. Installation of second layer including rootwads
Photo 6. Continuation of second layer construction
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 7. Packing of large voids with slash
Photo 8. Continuation of second layer construction
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 9. Utilizing long-bit hammer drill to bore threaded steel rod attachment holes
Photo 10. Nut threaded onto steel rod securing lateral piece to pile
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 11. Threaded steel rod showing between lateral piece and pile
Photo 12. Complete jam top-dressed with native alluvium
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 13. Lateral view of completed jam
Photo 14. View from atop jam, looking upstream
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 15. View of jam at the Brown Bridge Dam former impoundment (Boardman River)
(2017)
Photo 16. Jam built at upstream end of Boardman Dam impoundment, less than one
growing season (2017)
2018 Boardman River Log Jam Installation Photo Sequence-Boardman Dam Former Impoundment
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Photo 17. View of jam construction machine access site after less than one year’s growth
(Little Manistee River)
**Please note that the examples of other jam construction project sites utilizing heavy
equipment are included to illustrate recovery of the construction site post-construction. The
site depicted in the Boardman Dam impoundment bottomlands represents a very raw
condition in which very little stabilizing vegetation has had time to grow.
The Pine River project shall utilize best management practices to minimize the level of excess
sediment entering the river both during and after construction (see photo 15).
Heavy machinery utilized in the above projects had been power washed to remove potentially
aggressive and nuisance exotic weed seeds as well as petroleum residue. The petroleum-based
hydraulic fluids were all replaced with biodegradable hydraulic fluid in case of line rupture-this
will also be the case with the proposed Pine River project.