Amendment_0006.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 issued to extend the Bid Opening Date from 2 Oct 2018 to 9 Oct 2018 and to provide responses to Requests for Information (RFIs). All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 6

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

16C. DATE SIGNED

BY 27-Sep-2018

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 W912WJ18B0006

X 9B. DATED (SEE ITEM 11)

26-Jul-2018

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 X is extended, 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

27-Sep-2018

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:

W912WJ18B0006

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00010 - SOLICITATION CONTRACT FORM

The required response date/time has changed from 02-Oct-2018 02:00 PM to 09- Oct-2018 02:00 PM.

The following have been added by full text:

AMENDMENT 0006

RFI’S

1. On sheet S-108 at the top left of the profile the text indicates that the 2nd number represents the post height. Please confirm that it actually represents the bottom of wall elevation.

GOVERNMENT RESPONSE: Sheet S-108 has been previously revised, 1st text indicates Top of Wall or Panel elevation and 2nd text indicates Bottom of Wall elevation. For Shaft Top & Bottom elevations see Sheet S-109.

2. Plan Sheet CD-101, Note 11: Discusses clearing, grubbing and fill placement in the lagoons should not be done with equipment having ground pressure exceeding 1.5 psi until fill reaches Elev. 16. An average person standing exceeds this 1.5 psi requirement.

What is the intended method of achieving required fill and compaction? Is flooding with water going to be allowed?

GOVERNMENT RESPONSE: Any method the contractor is familiar with and can be executed safely staying within the provided parameters is acceptable.

3. In regards to the permanent sound barrier wall, will AASHTO LRFD 2017 standards be accepted? LRFD is the typical design code for highway walls which make up the vast majority of the market. These standards have been accepted and used on CT and DOT jobs.

GOVERNMENT RESPONSE: AASHTO LRFD 2017 is acceptable.

4. What are the noise abatement qualities required for the permanent sound wall?

GOVERNMENT RESPONSE: The noise abatement criteria are consistent with federal regulation 23 CFR 772 - Procedures for Abatement of Highway Traffic Noise and Construction Noise and /or in line with CT Administrative Code R930-3- Highway Noise Abatement.

5. Will embedded posts for the permanent wall be accepted if they meet the same strength requirements as the plate mounted currently shown?

GOVERNMENT RESPONSE: It will be accepted if they meet the same strength requirements.

Contractor shall submit calculation and details if alternative is proposed.

6. "- TO EXTENT PRACTICABLE, CONTRACTOR MAY COMPLETE LAGOON

CLEARING & GRUBBING USING EQUIPMENT LOCATED OUTSIDE THE

LAGOONS TO REDUCE RICKS OF RUTTING, PUMPING, & DISTURBING

SLUDGE. CONTRACTOR SHALL LIMIT CONSTRUCTION EQUIPMENT

OPERATING IN LAGOONS DURING CLEARING, GRUBBING & FILL

PLACEMENT TO EQUIPMENT WITH GROUND PRESSURE OF 1.5 POUNDS PER

SQUARE INCH (PSI) OR LESS, & COMPACTION EQUIPMENT TO 3,300 LB. OR

LESS. ONCE FILL IS PLACED ABOVE ELEVATION 16, EQUIPMENT WITH

GROUND PRESSURE LESS THAN 5 PSI COULD BE USED ON TOP OF THE FILL,

AND TYPICAL COMPACTION EQUIPMENT MAY BE USED".

Please define the limits of the existing lagoon restricted by the above note. Also, is the 1.5 PSI rating correct?

GOVERNMENT RESPONSE: The approximate limits of the existing lagoons are shown on Sheet V-103 and provide a buffer zone of 12 feet beyond those areas. The 1.5 PSI value is correct as sludge is soft.

7. Please provide location, dimensions, and detail for the restoration of the existing gravel roadway called out on L103, NW corner.

GOVERNMENT RESPONSE The existing gravel roadway shall be extended approximately 200'. The cross section is 10' wide by 18" deep compacted gravel.

8. What is the required finish on the pipe posts for temporary soundwall #2, plain, galvanized, or galvanized and painted?

GOVERNMENT RESPONSE: plain

9. The Geotechnical report in the contract states that settlement in the temporary access road is likely and that it will be ununiform due to sludge variability and recommends replacement or repair of the pavement at a later time. Will the contractor be released of responsibility for the replacement or repair of the existing pavement due to settlement?

GOVERNMENT RESPONSE: The contractor will not be responsible for pavement damage from settlement in the sludge area after the pavement has been placed and accepted. Damage due to contractor activity or negligence during this period is not waived.

10. Please provide a cross sectional detail of the rip-rap swale at Sta. 10+00 to 15+30.

GOVERNMENT RESPONSE: Refer to Sheet S-101 for Permanent Noise Barrier section with swale and Sheet S-103 for proposed grading and profile. Also, see Amendment #1.

11. It is anticipated that some excavation will be required to maintain the 2’ Min. cover over existing grade of granular fill meeting M. 02.01 in the construction of the access road as shown in typical sections on Sheet # C-001. This material will not meet the specification for suitable granular fill thus it will be waste to the project. Will this material and any other waste material generated form the construction access road be stockpiled and left on site?

GOVERNMENT RESPONSE: Any areas requiring excavation to meet the 2 foot cover requirement shall be identified and reported to the COR prior to any excavation. If excavation is required the material will be stockpiled and left on site.

12. In Addendum 3, Sheet S-108 shows the span from post 28 to post 35 as 120’; however, on Sheet S-109 that same span is shown as 115’. Please confirm which Sheet is accurate.

GOVERNMENT RESPONSE: Post #28 is at STA 10+00 and Post #35 is at STA 11+15, the span is 115 feet. Also, see Amendment #1.

13. On Sheet S-109, some of the current panel sizes will require custom manufacturing. Can stationing of panel support posts be adjusted to accommodate standard panel sizes?

GOVERNMENT RESPONSE: The Contractor may propose alternative post locations. As part of the proposal, structural calculations will need to be submitted for review and approval.

14. Is Rip Rap Swale to be 3’ deep Intermediate rip rap the entire way as shown at the outlet on Detail 14 C-006?

GOVERNMENT RESPONSE: Refer to Sheet S-101 in amendment 2 for Permanent Noise Barrier section with swale.

15. Reference Specification Section 01 11 00 – Article 1.14 Ledge Removal & Boring

“The contractor shall coordinate pre and post inspection of structures and residences within 200 feet of ledge removal and boring activities associated with the installation or the sound barrier footings.”

Is the contractor responsible for the costs associated with the performance of the pre and post inspection surveys?

GOVERNMENT RESPONSE: YES

16. With Addendum 3 showing the redesign of the spacing for the permanent barrier walls (realignment of posts 27-35 on NB-3 to 20'), will the contractor be allowed to design panel spacing based on meeting spec'd safety requirements?

GOVERNMENT RESPONSE: Post #28 is at STA 10+00 and Post #35 is at STA 11+15, the span is 115 feet. Also, see Amendment #1. The Contractor may propose alternative post locations. As part of the proposal, structural calculations will need to be submitted for review and approval.

Revised Response from Amendment 4 question 17

17. There is a note on the Noise Barrier plans and profile that says: Contractor to provide drain pipes under the proposed permanent noise walls to allow surface runoff to pass under the barriers at low points and/or natural surface runoff path locations. Does this note refer to the proposed precast catch basin and precast concrete pipe with flared end shown to cross the wall on drawing S-103, or does the Contractor need to provide drain pipes at any other locations along the walls?

GOVERNMENT RESPONSE: That note does not refer to the proposed precast CB and concrete pipe with flared end. The contractor shall provide 6 inch drain pipes at any other locations along the walls as required. Two locations are anticipated. Alternative drainage methods such as wall perforations may be considered.

(End of Summary of Changes)