Grumpy... here are a few pictures from our August 4-5 work weekend to whet your appetite...
Mike Doyle translated the drawings to dimensions and Brett Johnson did the measuring twice and cutting once. Laid out here are 10 of the 12 internal frames for one pontoon...
Each frame has four metal knee braces to hold it together. The first step was to line up the parts for one side and apply the the knee braces using 8 screws to secure it. Bob Wolfhope and James Owens are working here...
Next, after flipping the frame to the opposite side, holes needed to be drilled through the timbers so bolts could be passed through to secure both knee braces at each corner. Mike Paquette is drilling out the bolt holes here.
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Then the remaining screws needed to have their pilot holes drilled and screwed into place to complete each frame. Joel Hummel is drilling pilot holes and Jacob Borror is driving home the screws.
There was also work done on saw horses to support our pontoons during further construction...
You all will note we're using modern tools to accomplish this work. We have a schedule to meet and although there is a great group of volunteers there are just not enough period hand drills or volunteers in the world to drill all the pilot holes necessary for this project. Our materials have been selected based upon the period specifications contained in Organization of the bridge equipage of the United States Army published in 1870. We've had to make some substitutes of materials (The knee braces are made of steel not iron) to keep our costs down but otherwise our pontoons are build to period specifications with correct materials.
You can follow the progress of the pontoon construction by checking in on our 15th NYS Engineer Facebook page: http://www.facebook.com/#!/groups/382344998486011/
Our next work weekend is August 25-26 at the George Washington Foundations' Ferry Farm Historic Site in Stafford County, Virginia. We can use some additional hands in the project. If you are interested, please contact me via email at pete.berezuk@gmail.com









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