Hennepin County

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PROJECT QUESTION: See page B89, note 8 under the SUGGESTED CONSTRUCTION SEQUENCE: Is the grout noted in this comment to be the MnDOT 3A GROUT as specified in the special provisions section SB-14.1.B.3? What is the compressive strength requirement for this grout prior to deck panel placement on the pier caps?

QUESTION:
See page B89, note 8 under the SUGGESTED CONSTRUCTION SEQUENCE: Is the grout noted in this comment to be the MnDOT 3A GROUT as specified in the special provisions section SB-14.1.B.3? What is the compressive strength requirement for this grout prior to deck panel placement on the pier caps?

ANSWER:
The grout noted on sheet B89 is referenced in provisions section SB-14.1.B.3 although it should be MnDOT 3Y GROUT. This specification will be updated to call for MnDOT 3Y GROUT as the minimum compressive strength requirement prior to deck panel placement is 4000 psi.