W912HN-10-B-0003 0003.pdf

W81LJ892532593

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

Solicitation Number W912HN-10-B-0003, "B. Everret Jordan Dam and Lake Water Quality Control Gates Rehabilitation", is hereby modified as follow s:

A. The bid opening date is being extended to March 3, 2010 at 2:00 PM.

B. Questions and Answ ers not available on ProjNet are being posted through this amendment.

C. Draw ing changes are also incorporated through this amendment.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 4

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

16C. DATE SIGNED

BY 19-Feb-2010

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 W912HN-10-B-0003

X 9B. DATED (SEE ITEM 11)

13-Jan-2010

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

19-Feb-2010

CODE

U S ARMY CORPS OF ENGINEERS

WILMINGTON DISTRICT

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

W912HN 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912HN-10-B-0003

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00010 - SOLICITATION CONTRACT FORM

The required response date/time has changed from 24-Feb-2010 02:00 PM to 03-Mar-2010 02:00 PM.

The Issued By organization has changed from

U.S. ARMY ENGINEER DISTRICT SAVANNAH

WILMINGTON OFFICE

69 DARLINGTON AVENUE

WILMINGTON NC 28403

to

U S ARMY CORPS OF ENGINEERS

WILMINGTON DISTRICT

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

The following Questions and Answers are hereby posted for public viewing:

Question: In reviewing the drawings, it is not clear as to whether or not the lower cylinders are accessible from inside the room.

Answer: The lower cylinders (WQ 4 & WQ 6) are accessible from inside the room.

Question: Are there access doors available for the confined space? If so, what are the dimensions of the doors?

Answer: There are hatches vs. doors to enter the confined space. Hatch dimensions are approximately 3 ft. X 2.5 ft. Actual dimensions should be verified by the successful contractor.

There are hatches in the overhead to lower equipment through. Upper room hatches are approximately 12 ft. X 3 ft., Lower room hatches are approximately 13 ft. X2.5 ft. The doorway width between the upper and lower rooms is approximately 3.3 ft. Actual dimensions should be verified by the successful contractor.

W912HN-10-B-0003

Question: Will there be a need of diving on this project to remove and replace the gate guides?

We know there will be stop logs installed but will it be de watered?

Answer: Divers are not required to repair the stem guides or install the cylinders. The tower will be stop logged and de-watered by the Corps to facilitate the work.

Page of

SECTION 41 24 27.00 10 – HYDRAULIC POWER SYSTEMS FOR CIVIL

WORKS STRUCTURES

Delete existing SECTION Page 18 in its entirety and replace with enclosed revised Page.

NOTE:

Text that is added or revised by this amendment is replaced in its entirety and underlined and/or printed in bold and/or stamped appropriately.

The text changes may have necessitated reformatting of subsequent text or pages. If this is the case, those pages have also been issued as amended pages but are not underlined or bold text.

DRAWINGS

Delete existing Plates Numbers listed below in their entirety and replace with enclosed revised like numbered Plates:

M-001, M-401, M-402, M-403, M-404, M-405, M-406, M-407, M-603, E-102 and E-601.

(End of Summary of Changes)

Encls As stated

B. Everett Jordan Dam and Lake Water Quality Control Gates W912HN-10-B-0003 Rehabilitation, Chatham County, North Carolina socket-welding ends. The Contractor may at his option substitute four bolt split flanges with Viton O-rings for the unions.

2.1.10.4 Hydraulic Tubing

Tubing shall be seamless stainless steel tubing conforming to ASTM A 789/A 789M. The wall thickness shall be selected to provide a safety factor of 6 based on the manufacturer's ratings for burst strength.

2.1.10.5 Tube Fittings

Tube fittings shall be made of stainless steel and be the flareless type with SAE straight threads and Viton O-ring seals. The fittings shall conform with SAE J514.

2.1.10.6 Hose

Flexible hydraulic lines shall be wire-reinforced, high-pressure-type hose made of neoprene or Buna N. Flexible hose shall be rated by the manufacturer for a working pressure not lower than the system operating pressure indicated above with a factor of safety of 4. Fittings shall be specifically designed for use with the hose selected and shall be as recommended by the hose manufacturer. Fittings shall be made of stainless steel and shall be the reusable type.

2.1.11 Bolts, Nuts, and Washers

2.1.11.1 Carbon Steel Bolts and Nuts

Carbon steel bolts and nuts shall conform to ASTM A 354, Grade BC, with ASTM A 194/A 194M, Grade 2H nuts. Structural bolted connections carrying primary loads shall be made with ASTM A 325 bolts.

2.1.11.2 Stainless Steel Bolts and Nuts

Stainless steel bolts and nuts shall conform to ASTM A 193/A 193M, Grade B7 or B16, with ASTM A 194/A 194M, Grade 8 nuts.

2.1.11.3 Flat Washers

Flat washers shall conform to ASTM F 844.

2.1.12 Hydraulic Fluid

The hydraulic fluid to be used during shop testing, to fill the cylinders before shipment, flush the system after installation, and to fill the complete hydraulic system shall be AMSOIL TBI ISO 32/46 or equal. Fresh hydraulic fluid shall be filtered through a 10 micron filter before it is added to the system. All oil shall be supplied by the Contractor.

2.2 ELECTRICAL EQUIPMENT

The electrical equipment for the hydraulic power systems shall be as shown and as specified. Other electrical materials and equipment required for the installation of the hydraulic power systems shall be as specified in Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM. All electrical equipment furnished shall be standard catalog items under regular manufacture with preexisting catalog ratings equal to or better than the requirements of the contract drawings and specifications. The Contractor's request for

SECTION 41 24 27.00 10 Page 18 (Revised by Amendment No. 0003)