3-dimensional views existing spillway construction
TRANSCRIPT
![Page 1: 3-Dimensional Views Existing spillway construction](https://reader037.vdocuments.us/reader037/viewer/2022103022/56649cee5503460f949bcb4f/html5/thumbnails/1.jpg)
3-Dimensional ViewsExisting spillway construction
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3-Dimensional ViewsFirst concrete pour inside spillway (summer 2013)
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3-Dimensional ViewsNew concrete pier extensions (summer 2014)
This work takes place “in the dry” behind a sheet pile cofferdam
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3-Dimensional ViewsStoplogs are placed between piers & rest on new concrete sills
Once stoplogs are in place water levels can be returned to normal
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3-Dimensional ViewsConstruction work taking place between 2015 and 2016
More concrete is poured in the
base of the spillway
Existing gate and bridge are removed
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3-Dimensional ViewsConstruction work taking place between 2015 and 2016
Concrete rollaway slabs and most of upstream barrel arches are removed
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3-Dimensional ViewsConstruction work taking place between 2015 and 2016
New concrete crest is poured
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3-Dimensional ViewsConstruction work taking place between 2015 and 2016
Concrete overlay is placed over entire pier structure
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3-Dimensional ViewsConstruction work taking place between 2015 and 2016
New bridge is constructed
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3-Dimensional ViewsTobacco Spillway to be completed in 2016
New gate is installed and stoplogs are removed
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3-Dimensional Comparison
Existing spillway Modified spillway