Hennepin County

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PROJECT QUESTION: Are the stretches of suspected organic material regions listed in the specification the only areas required to be monitored for vibration and have precondition surveys completed for bidding purposes? Or is the entire project zone suspect to monitoring and survey?

Q: Are the stretches of suspected organic material regions listed in the specification the only areas required to be monitored for vibration and have precondition surveys completed for bidding purposes? Or is the entire project zone suspect to monitoring and survey?

A: Vibration monitoring is required in the three stretches listed in Section S-51.1 of the special provisions. It is not required elsewhere.