Revised Specifications 21 Nov 2019 (Attachment 1).pdf

U.S. ARMY ENGINEER DISTRICT, PITTSBURGH

ATTN CELRP-RC-P

W S MOORHEAD FEDERAL BUILDING

1000 LIBERTY AVENUE ROOM 2203

PITTSBURGH PA 15222-4186

W81ET492213808

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

RE: Stilling Basin Joint Sealing, Mosquito Creek Dam, Trumbull County, Ohio

The purpose of this amendment is to provide responses to questions received as indicated in the Summary of Changes to this Amendment.

The hour and date specified for receipt of quotes remains unchanged at 05:00 PM ET on 22 November 2019.

1. CONTRACT ID CODE PAGE OF PAGES

1 3

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

16C. DATE SIGNED

BY 19-Nov-2019

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 W911WN20Q8000

X 9B. DATED (SEE ITEM 11)

31-Oct-2019

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

19-Nov-2019

CODE

U.S. ARMY ENGINEER DISTRICT, PITTSBURGH

ATTN CELRP-RC-P

W S MOORHEAD FEDERAL BUILDING

1000 LIBERTY AVENUE ROOM 2203

PITTSBURGH PA 15222-4186

W911WN 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE W911WN

FACILITY CODECODE

Matthew.W.Reed@usace.army.milEMAIL:412-395-7157TEL:

MATTHEW W REED / ADDED BY UPASS

W911WN20Q8000

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 21 00 - INSTRUCTIONS

The following have been added by full text:

QUESTIONS AND ANSWERS

RESPONSES TO QUESTIONS RECEIVED (1-6)

Q1: Is the non-erodible material contractor laydown area used only for this project?

A1: Yes.

Q2: Can Quality Control Manager also be the Site Superintendent/Site Safety Health Officer?

A2: The QC manager and the Superintendent must be separate individuals. The SSHO can also be the superintendent or QC Manager if the contractor chooses, provided they meet the requirements.

Q3: Can you clarify the intent of General note 3 on drawing X-101?

a. Limiting the access to 5 tons defeats the purpose of stoning a full access pad area. There’s no way to efficiently move that stone over the tunnel. You’d, at best, be able to move 2.5 ton at a time.

b. We have pickup trucks that exceed the 5 TN weight limit. Also, with that weight, the largest excavator to move over there weighs 10 TN, that’s too small to do anything significant.

c. The barrier for the water diversion weighs over 6,000 pound. That leaves 4,000 pounds for a vehicle or equipment to move the barrier. Nothing that small can move the barrier, let alone lift it over a wall.

d. Also, with the barrier, we need to reach out over 55’ to set that barrier. What piece of equipment can do that? This requires a crane with at least 55’ of reach. This will weigh well over 5 tons.

A3:

a. General Note 3 on sheet X-101 is intended to limit the allowable gross vehicle weight over the outflow tunnel to protect the tunnel from overstress due to live load. The Quoter is responsible for determining the means and methods to perform the required work within the limits of the plans and specifications. The Quoter may need to make multiple trips with light duty vehicles and equipment in order to perform the required work.

b. Refer to response ‘a’.

c. There are no specific contract requirements with respect to material and weight for the water diversion barrier. Sheet X-504 includes two possible methods for constructing the water diversion barrier.

d. Refer to response ‘c’.

Q4: Do you have any additional details of the step going into the stilling basin? This will be crucial in geometry, as you are using concrete barrier to cross the step and maintain a watertight seal.

A4: Drawing 035bb-U1-61/1, provided as a reference drawing at the end of the project Plans, gives the best available detail on this area. Specifically reference ‘Section F-F’ and ‘Profile on Center Line’ on the drawing.

W911WN20Q8000

Q5: Drawing S-101 calls out different joint seal details at various locations along the training walls. The Quoter is concerned that the PVC Waterstop detail may not yield satisfactory results due to the 6” wide PVC waterstop being encapsulated in non-shrink grout, with no direct engagement to the existing concrete – it is possible that after several seasons the water will flow around the perimeter of the non-shrink grout plug, bypassing the new waterstop. Would the Government accept the application of the Foam Grout Waterstop as detailed on S-302 at all joint locations in lieu of the PVC Waterstop?

A5: The Quoter’s concern has been noted, however, substitution of the foam grout waterstops for PVC waterstops is not permitted. The Quoter should proceed with the details as shown the contract plans.

Q6: Are there any existing utilities (electrical, intake pipes, etc) in the vicinity of the new Storm Culvert Extension shown on C-402? Please provide reference drawings, if available.

A6: USACE is not aware of any existing utilities in the vicinity of the new storm culvert.

(End of Summary of Changes)