Amendment W912WJ21B0022-0003.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

This amendment is necessary to provide responses to post-site visit Requests for Information (RFIs) and the list of attendees. All other aspects remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 5

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 20-Aug-2021

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912WJ21B0022

X 9B. DATED (SEE ITEM 11)

16-Jul-2021

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

20-Aug-2021

CODE

U S ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA RD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912WJ21B0022

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00100 - BIDDING SCHEDULE/INSTRUCTIONS TO BIDDERS

AMENDMENT 0003

SITE VISIT ATTENDEES

Question #1: Will the Government install the emergency gate and move it accordingly in order to act as a bulkhead so the Contractor can perform work on the service gates?

Government Response 1: If the facility is not in flood control operation mode, yes the emergency gate can be moved as necessary to act as a bulkhead so the contractors can perform work on the service gates. The Government will operate the emergency gate.

Question #2: How much leakage should we anticipate from the emergency gate?

Government Response 2: There is leakage but it it relative to amount of head behind the gate.

This is also dependent on how the gate is being operated (e.g. alone, in conjunction with the service gate).

Question #3: We haven’t seen the Sustainability Specification on any other projects with the Corps, section 01 33 29. Can more light be shed on what the intent of this spec is?

Government Response 3: The intent of the sustainability spec is to consolidate submittal and documentation requirement for the construction contract. These can be found in paragraph 1.6 of the specification.

NAME (First and Last) COMPANY Tim Jones Kingsbury Companies David Krupp Chas G. Allen Inc.

Evan Willeke American Mine Services, LLC.

J. Watson M&K Commercial Diving Christie Baker US Army Corps of Engineers Alizia Lacrosse US Army Corps of Engineers Mike Servant US Army Corps of Engineers Dylan Dickson US Army Corps of Engineers Guesley Leger US Army Corps of Engineers

Question #4: Can the Sophisticated Paint shop endorsement by the gate fabricators be used in lieu of the current requirement?

Government Response 4: We do not know what the “Sophisticated Paint shop” endorsement is.

For a gate being made to Hydraulic Steel Structure standards, we will enforce current requirements for SSPC-QP3 paint contractor.

Question #5: Spec 35 20 16 talks about assembling the gate and the gate frame at the shop. The gate frame is part of the dam and cannot be removed. Please explain.

Government Response 5: The contractor does not need to shop assemble with the gate frame.

As stated in the question, the frame is part of the dam structure. The contractor only needs to shop assemble the gate and appurtenant items.

Question #6: Are we supposed to install J-bulb seals or bronze seals on the new gates, the specifications contradict between the two.

Government Response 6: See spec section 35 20 16 paragraph 2.1.2. Install bronze seals.

Question #7: 35 20 16 2.3.5.4 states to remove the leaf seals prior to shipping and reinstall once the gate is on site. It is not a good method to remove and reinstall these onsite, many issues can come up with that method. Can this be changed to leave them installed? Regardless, it is the Contractor’s risk to ensure they are not damaged during shipping. It is not possible to remove and reinstall bronze seals, as they require machining after installation. If we removed and reinstalled them onsite, their would be additional unnecessary costs to reinstall and machine them onsite. If J-bulb seals are used, they can be protected during shipping.

Government Response 7: Bid as indicated in the plans and specifications. Field adjustments are required to best align the two seal mating surfaces.

Question #8: Please provide more information on what is required on the dogging devices in spec 35 20 16, part 2.3.5.6. Please provide drawings of the existing, or more information as to what we are required to do with them on this project.

Government Response 8: Please find attached photos of the emergency gate dogging pins. The engineer responsible for the design of the new gates shall be responsible for the design of a dogging system that is fully compatible with the existing gate wells and the new gates and capable of carrying the full load of the gate

Question #9: Will the Government perform the electrical disconnecting of the hoists for the services gates, or is the Contractor required to cover this?

Government Response 9: All work pertaining to the contract is the responsibility of the Contractor.

Question #10: Specification 35 20 16 part 3.2 states the leakage must be less than 0.10 gpm/ft of seal on the newly installed gates. If we are not performing any work on the frame seals in the conduit, it is difficult to guarantee this. The gates could be fabricated perfectly, but if there are issues with the frame seals, it could cause leakage over this value that is not the Contractors’ fault. How will this be addressed?

Government Response 10: The leakage limit is from the AWWA standard for allowable leakage.

If upon inspection, issues are identified with the frame seals, the Contractor shall inform the Contracting Officer. At this time there are no known issues with the gate frame.

Question #11: Will the Contractor have the ability or access to enter the conduit from the outlet, via the river? At the site visit, it did not seem possible to enter the conduit this way, or very easily or safely. How will the leak testing be completed if we aren’t able to enter the conduit?

Government Response 11: If the outflow is really low (around 15 cfs) then you can access the conduit walking with waders.

Question #12: I was wondering if the roof is removable or would it have to be cut and rebuilt for the removal of the gates with a mobile overhead crane.

Government Response 12: The roof is not removable, removing the roof is not allowable.

Adequate access is available through the double doors closest to the Service gate wells. Double doors measure a little less than 7”-8” (reference informational drawing 46) while the existing gates are approximately 6’ wide. Interior clear space from the finished floor to the underside of the steel roof truss is 14’-10” (reference informational drawing 45) and the gates being less than 12’ tall a rigging system can be designed and used inside the confines of the existing space without modifications to the existing building.

Question #13: What is the weight of the service gates?

Government Response 13: The estimated weight of one existing service gate is 13,880 lbs. This has not been measured.

Question #14: What is the weight of the emergency gate?

Government Response 15: The estimated weight of the emergency gate is 14,000 lbs. This has not been measured.

Question #15: Can we have a two or three day extension on the bid due date?

Government Response 15: See Amendment 0002. The due date/time remains unchanged with Amendment 0003.

(End of Summary of Changes)