20190233 Ver 1_17BP10R107 Supplementary Information for PCN_20190225

Supplementary Information for PCN
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted
by machines, such as jackhammers, mechanized pile drivers, etc.?*
If yes, please provide details to include type of percussive activity, purpose, duration, and specific
location of this activity on the property.
Yes, mechanized pile drivers will be used at the bridge end bent locations to install steel piles for the
bridge foundations. These percussive activities will be limited to the amount of time required to drive
piles to their specified depths. We anticipate the total percussive installation time to be 10 days or less.