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Dam removal (with video)


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My firm was contracted by a local watershed organization and funded by US Fish & Wildlife and the NRCS, part of the US Agriculture Department that puts Farm Bill money for conservation to on the ground projects.  This dam has a unique history in that it holds two stories.  First, some believe that the British soldiers burned the two grist mills located here which were fed by this dam back when it was first built which was long before the advent of concrete.  The reason was to keep Colonialists from having access to food during the Revolutionary War.  Others believe the Colonialists burnt the mills to keep the British from getting much needed grains to feed their troops.  Either way, there was a dam in this area since the later 1700s.  The current dam had been breached when two hurricanes met up in NJ around 1958, and the river punched through part of the dam away from the spillway and tore a new channel at that time.   

 

The concrete was showing signs of significant deterioration and below the dam are colonies of three federally listed species of creatures that would not do well if/when the dam catastrophically fails as it was on the road to do.  This project required that we monitor the water turbidity while we worked, so you will see that we take great pains to keep clean water flowing around the site as much as we could.  We needed to remove the remaining concrete structure built, as we later found out, in 1924.  And we needed to rebuild a bank lost in '58 and restore a small island and create backwater habitat for a variety of critters.  This is the Burnt Mill dam, or was, on the Lamington River in Somerset County, NJ.   

 

"A sinking fly is closer to Hell" - Anonymous 

 

https://www.troutscapes.com

https://nativefishcoalition.org/national-board

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Great video showing the transformation.  

Those dump trucks were taking a beating dumping those big rocks, lol.  Think I asked you this before, you must go through excavator teeth rapidly. 

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10 hours ago, mowin said:

Great video showing the transformation.  

Those dump trucks were taking a beating dumping those big rocks, lol.  Think I asked you this before, you must go through excavator teeth rapidly. 

Most rock deliveries here in the East use old 30’ rolloff containers. This way they don’t bang up the aluminum beds of their dump trucks. As for teeth, it depends widely on what we are digging in. We seldom need new ones while on a job, but we return a lot of machines that need new teeth.

We ask our supplier to bring us a steam cleaned machine with new teeth on all jobs. 

"A sinking fly is closer to Hell" - Anonymous 

 

https://www.troutscapes.com

https://nativefishcoalition.org/national-board

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