Amendment 0001.pdf
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- Re-cabling Antenna Towers, Chattanooga Remote Transmitter Receiver Facility (CHA RTR), Chattanooga, TN
- Solicitation number
- DTFASA-17-R-00037
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Offers 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 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 your 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.
E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
1. CONTRACT ID CODE
2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 5. PROJECT NO. (If applicable)
7. ADMINISTERED BY (If other than Item 6) CODE
STANDARD FORM 30 (REV. 10-83)
Prescribed by GSA FAR (48 CFR) 53.243
FACILITY CODE
10A. MODIFICATION OF CONTRACT/ORDER NO.
10B. DATED (SEE ITEM 13)
11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
is not extended.
12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;
13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
CHECK ONE 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)
15C. DATE SIGNED
15A. NAME AND TITLE OF SIGNER (Type or print)
16C. DATE SIGNED
16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)
PAGE OF PAGES
6. ISSUED BY CODE
8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X)
CODE
15B. CONTRACTOR/OFFEROR
(Signature of person authorized to sign)
16B. UNITED STATES OF AMERICA
(Signature of Contracting Officer)
NSN 7540-01-152-8070
Previous edition unusable
Linda Hennequant, Contracting Officer
14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)
Re-cabling Antenna Towers, Chattanooga Remote Transmitter Receiver Facility, Chattanooga, TN
Amendment is issued to answer vendor questions and provide additional information. See attached.
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.
Federal Aviation Administration Eastern Acquisitions Southern Region, AAQ-510 1701 Columbia Avenue College Park, GA 30337
Federal Aviation Administration Eastern Acquisitions Southern Region, AAQ-510 1701 Columbia Avenue College Park, GA 30337
4. REQUISITION/PURCHASE REQ. NO.
See Schedule
9A. AMENDMENT OF SOLICITATION
NO.
DTFASA-17-R-00037
1 4
12/01/2016
9B. DATED (SEE ITEM 11)
15 Nov 2016
The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended, X
AMENDMENT 0001
DTFASA-17-R-00037
Re-cabling Antenna Towers, Chattanooga, TN
THIS AMENDMENT IS BEING ISSUED TO INCORPORATE THE FOLLOWING
INFORMATION INTO THE REFERENCED SOLICITATION
QUESTIONS AND ANSWERS
1. QUESTION: I have reviewed the GFM list in the specifications and this does not include all items listed on the drawings, for example drawing CHA-D-1202459-E002, note 3 calls out Nema 4X junction boxes that are listed on the note as GFM but are not included in the GFM list in the specifications. This is also the case for notes 4 and 5 on that same print.
Please clarify if I am to interpret all GFM items on the drawings as GFM items for this project?
FAA ANSWER: Please see Changes/Clarifications below.
2. QUESTION: On drawing CHA-D-1202459-E002, note 7, the GFM Heliax is listed as 1/2”.
Please clarify that this is supposed to be 7/8”.
3. QUESTION: Do you have a tentative schedule in regards to which towers will be shut down (for example tower 1, 2, 3 and then tower 4, 5) and what time will be required by the FAA to make the connections and be ready to release the next set of towers?
FAA ANSWER: Towers will not be shutdown prior to installation of new conduits and cables. Once contractor installation is complete, the FAA will take up to 2 weeks to cut-over towers to new cables prior to removal of existing cables. See C003 note 7.
4. QUESTION: Will the FAA have any site photos available?
FAA ANSWER: No photos are available at this time.
5. QUESTION: Will there be no Bottom J-Box on towers 1 &2? They are not shown on Sheet E004.
FAA ANSWER: As per the plans, there will be no bottom box required on towers 1 & 2.
6. QUESTION: The GFM list show there to be 2 Each, 48 x 36 x12” boxes furnished and only one is shown in the installation drawings.
7. QUESTION: The GFM shows 5 Ea. 36 x 30 x 10” boxes furnished which is shown for the top boxes. There are none in the GFM list for the lower tower J-box. Will these be contractor furnished?
AMENDMENT 0001 DTFASA-17-R-00037
8. QUESTION: There is no lower J-box shown on sheet E004 for towers 1 & 2. Will there be no lower J-box on Towers 1 & 2? If required who is to furnish?
FAA ANSWER: As per the plans, there will be no bottom box required on towers 1 & 2.
CHANGES:
1. Note 4 on Drawings CHA-D-1202549-C003 is hereby changed from “INSTALL 9 RUNS OF
7 /8” HELIAX CABLE (GFM) IN 4” PVC CONDUITS BETWEEN THE FIBERGLASS
JUNCTION BOXES (GFM) INSTALLED ON WEST AND EAST WALLS OF EXISTING
BUILDING AND THE FIBERGLASS JUNCTION BOX AT THE TOP OF EACH ANTENNA
TOWER. 5' OF SLACK SHALL BE LEFT IN BOTH TOP AND BOTTOM BOXES. SEE
DETAIL 2/C002 AND DRAWING E001, AND E002 FOR DETAILS. ALL BELOW GROUND
CONDUIT SHALL BE 4” SCHED 80 PVC. ALL ABOVE GROUND CONDUIT SHALL BE 4"
SCHED 40 PVC” to “INSTALL 9 RUNS OF 7/8" HELIAX CABLE (GFM) IN 4" PVC
CONDUITS BETWEEN THE FIBERGLASS JUNCTION BOXS (GFM) INSTALLED ON
NORTH AND EAST WALLS OF EXISTING BUILDING AND THE FIBERGLASS
JUNCTION BOX AT THE TOP OF EACH ANTENNA TOWER. 5' OF SLACK SHALL BE
LEFT IN BOTH TOP AND BOTTOM BOXES. SEE DETAIL 2/COO2 AND DRAWING E001,
AND E002 FOR DETAILS. ALL BELOW GROUND CONDUIT SHALL BE 4" SCHED 80
PVC. ALL ABOVE GROUND CONDUIT SHALL BE 4" SCHED 40 PVC”.
2. Details 5/E001 on Drawing CHA-D-1202549-E001 and 5/E002 on Drawing CHA-D-
1202549-E002 are hereby changed from “2-4” SCHEDULE 40 PVC TO BOX LOCATED ON SHELTER” to “3 SCHEDULE 80 4” PVC TO BOX LOCATED ON SHELTER”.
3. Notes 7 on Drawings CHA-D-1202549-E001 and Drawings CHA-D-1202549-E002 are hereby changed from FURNISH AND INSTALL 1 5/8"x 1 5/8" STAINLESS STEEL
UNISTRUT 24" IN LENGTH TO THE ANTENNA TOWER AT THE PREFABRICATED
ANTENNA TOWER HORIZONTAL ANGLES MARK 9535. THE 3 EACH 4"0 CONDUITS
ARE THEN FASTENED TO THE UNISTRUT WITH STAINLESS STEEL PIPE CLAMPS.
ALL MOUNTING HARDWARE SHALL BE STAINLESS STEEL. INSTALL 13 EACH 1/2"
HELIAX, ANDREW P/N LDF4-50 (GFM)” to “FURNISH AND INSTALL 1 5/8"x 1 5/8"
STAINLESS STEEL UNISTRUT 24" IN LENGTH TO THE ANTENNA TOWER AT THE
PREFABRICATED ANTENNA TOWER HORIZONTAL ANGLES. (3) 4” CONDUITS ARE
THEN FASTENED TO THE UNISTRUT WITH STAINLESS STEEL PIPE CLAMPS. ALL
MOUNTING HARDWARE SHALL BE STAINLESS STEEL. SEE DETAIL 9/E001”
4. Note 2 on Drawings CHA-D-1202549-C003 is hereby changed from “INSTALL (1) 48"x 36"x 12” FIBER GLASS BOX (GFM) ON THE EAST WALL OF THE RTR BUILDING, AND ( 1) 36” x 30"x 12" BOX (GFM) ON THE NORTH WALL. CONSULT WITH COTR FOR
EXACT LOCATIONS. INSTALL THE BOTTOM OF THE JUNCTION BOXES 2'-6" ABOVE
FINISH GRADE TO BOTTOM OF BOX. EACH BOX SHALL HAVE (2) 1 ¼” PVC
CONDUITS CONTAINING (1) 4/0 COPPER AWG CONDUCTORS PER CONDUIT (2 PER
BOX) EXOTHERMICALLY WELDED TO THE COUNTERPOISE, AND 3' OF SLACK
SHALL BE LEFT IN THE BOX FOR EACH RUN. CONTRACTOR SHALL PENETRATE
FROM THE REAR OF THE BOX INTO THE BUILDING USING A 4“ PVC CONDUIT
AMENDMENT 0001 DTFASA-17-R-00037
SEALED WITH GROUT.” to “INSTALL (1) 48"x 36"x 12" FIBER GLASS BOX (GFM) ON THE EAST WALL OF THE RTR BUILDING, AND (1 ) 48"x 36"x 12" BOX (GFM) ON THE
NORTH WALL. CONSULT WITH COR FOR EXACT LOCATIONS. INSTALL THE
BOTTOM OF THE JUNCTION BOXES 2'-6" ABOVE FINISH GRADE TO BOTTOM OF
BOX. EACH BOX SHALL HAVE (2) 1 1/4" PVC CONDUITS CONTAINING (1) 4/0
COPPER AWG CONDUCTORS PER CONDUIT (2 PER BOX) EXOTHERMICALLY
WELDED TO THE COUNTERPOISE, AND 3' OF SLACK SHALL BE LEFT IN THE BOX
FOR EACH RUN. CONTRACTOR SHALL PENETRATE FROM THE REAR OF THE BOX
INTO THE BUILDING USING A 4" PVC CONDUIT SEALED WITH GROUT.”
5. SO-J2 List of Government-Furnished Material, PART III - SECTION J, LIST OF
ATTACHMENTS is hereby changed from Product Specification Qty Est. Cost
7/8” Heliax Cable 13 10 00 6,000 $ 25,000
36” x 30” x 10” Junction Box 26 10 00 5 $ 5,000
48” x 36” x 12” Junction box 26 10 00 2 $ 2,000 to Product Specification Qty Est. Cost
7/8” CABLE 13 10 00 6,000 ft $25,000
36” x 30” x 10” Junction Box-> Top boxes of Towers (1,2,3,4,5)
26 10 00 5 $5,000
48” x 36” x 12” Junction box-> (1)
Box mounted on the North wall, and
(1) Box mounted on the East Wall of the Shelter
26 10 00 2 $2,000
30” x 24” x 10” Junction Box -> Box mounted to the Bottom of Towers
(3,4, & 5)
2 $1,700
CLARIFICATIONS
1. All strain reliefs shall be ¾” and shall be Contractor furnished.
2. All underground conduits shall be schedule 80 and all above ground conduit shall be schedule 40.
3. The drawings are correct. The 4” PVC bell ends are to touch the box. A box adapter shall be installed to connect the box to the bell end.
END OF AMENDMENT 0001
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