Amend_2_Q_A_0002.docx

1-Drawing 10, details HR1 and HR2 contain a note that all aluminum in contact with concrete shall be coated with tar epoxy. Specification 05120 C. 3. States that aluminum in contact with concrete shall be coated with zinc chromate. Please clarify which method is preferred.

Answer-Contractor shall use zinc chromate.

2-No finish is specified for the aluminum handrail. Will a satin anodized finish be acceptable?

Answer-Satin anodized finish shall be used for the aluminum handrail.

3-During dewatering operations, is it acceptable to discharge water on the south side of the main dike through a filter bag?

Answer-Yes, you can use a filter bag and discharge into the south side of the Main Dike, if allowed for within the construction permit for the WIDNR.

4-Specification 05120 B. 3. Describes the wire mesh screens as having 1/8” openings with a total of 43% open space. We have spoken to multiple suppliers, including McNichols, and the lowest total opening space is not available. There are 2 questions:

a-Will a ½” x ½” screen be acceptable?

b-Can a detail in the drawings be added to describe the frame required for the screens, or should we propose one in our technical narrative submission?

Answer 4a-The 1/8 and 3/16 is available through a local supplier that works with McNichols and a few others so it is available in various lengths and widths.

Answer 4b- Frames with 2 inch welded aluminum bar tubing with centerpiece brace in the middle for strength. See drawing Sheet 11 of 12.

5-Can the bid date be extended one week, given that it is acceptable to begin construction in Spring of 2023?

Answer-The due date for proposals is not extended.

6-Will the Contracting Authority allow the submission of previously completed PPQ forms with Volume II, Past Performance?

Answer-No. The PPQ form for this solicitation shall be used.