Unalaska (Dutch Harbor) Industry Questions.pdf

Unalaska (Dutch Harbor) Navigation Project Industry Day

March 16, 2023

Industry Feedback (WILL NOT BE POSTED):

1. Based on this presentation and provided Geotechnical Report:

a. What dredging methods would your firm anticipate utilizing?

b. Would your firm anticipate blasting being required, or more efficient to dredge this material?

2. The project area has a typical tidal range of 4’ and the contract requires dredging to an elevation -60’ MLLW, requiring dredging in depths of approximately -64ft if dredging was to occur throughout a typical tidal cycle. What type of equipment do you think would be necessary to dredge at these depths?

3. How many individuals are anticipated to comprise your workforce in Unalaska? What is your plan to provide housing?

4. Does the one-year contract duration seem adequate? Do you anticipate having seasonal shutdowns?

5. Based on your knowledge of the climate in Dutch Harbor, what are your mob/demob dates? Or would you anticipate equipment already in the in the immediate vicinity of the project site?

6. Are there any items that you would like to see in the contract to reduce inflationary risks to the contract?

7. Based on the provided presentation are there any dredging concerns and/or risks about this project you would like to inform us of at this time? If so, are there potential mitigative solutions for these risks that can be implemented into the final design of the project?