Sol_140P2026R0081_Amd_0004.pdf

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 electronic communication 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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: is not is required copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7.ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. is extended. 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 APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER 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

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

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.

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)

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

PAGE

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, 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)

Previous edition unusable

PAGESOF

Contractor

The hour and date specified for receipt of Offers to sign this document and return

Joseph Wingfield

See continuation page

NPS, DSC Contracting Services Div 1 Denver Federal Center, Building 50 P.O. Box 25287 Denver CO 80225-0287

PDS

140P2026R0081

10/05/2026

10/05/2026

1 5

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGES

NAME OF OFFEROR OR CONTRACTOR

SUPPLIES/SERVICES

(B)

UNIT

(D)

UNIT PRICE

(E)

AMOUNT

(F)

OPTIONAL FORM 336 (4-86)

Sponsored by GSA FAR (48 CFR) 53.110

ITEM NO.

(A)

QUANTITY

(C)

NSN 7540-01-152-8067

140P2026R0081/0004

The purpose of Amendment 04 is to provide answers to RFI's submitted and add Attachment

15 - Appendix C-Procedure for Environmental

Protection_2026-10-27. This is an updated

Appendix C.

TIMU 335507 Stabilize Kingsley Plantation Shoreline RFI Responses Sol: 140P2026R0081

# Question Response

During the walk thru, we were shown the access road pathway. This is heavily wooded with overgrowth. Will we be allowed to clear this overgrowth thicket? Is there a possibility to remove one of the palm trees since there isn’t 12’ between the trees currently making truck passage difficult? Photo included for clarity.

Clearing of overgrowth is allowed. All palm trees must remain, and clearing to the east may proceed to the required width while ensuring protection of the cedar tree noted on the plans.

The schedule 80, 316 SS sleeves that are called out for the tie rods & thru bolts. Can you please clarify what the required diameter will be for the tie rod sleeves? A ¾” sleeve may not work with the required protective wraps on the tie rods.

The nominal size schedule 80, 316 SS sleeves for 3/4" tie rod shall not be less than 1".

Phase 3 area – will we be allowed to clear the overgrowth, 20’ back from the fall off as needed, so we can have a workable area to install the sheet pile system from the land side? Currently the overgrowth goes all the way to the fall off.

Yes.

Sheet S3.1, S3.2 & previous RFI response calls for 2” holes in existing sheet pile & 3” holes in new sheet pile for drainage. There isn’t any call out for geotextile fabric behind either the sheet pile system to retain the existing soils or new gravel fill. Is there a requirement for geotextile fabric to be installed behind either / or both walls to prevent cave in / erosion of fill materials? If so, please specify which type of geotextile fabric materials will be required.

No geotextiles fabric is required to be installed for 2" existing piles holes.

Stainless steel maintainable weepholes with stainless steel housing and woven geotextiles shall be installed at new sheet pile. Refer Note 7 of Drawing S3.1 and Note 4 of Drawing S3.2.

Can we use ½” diameter, 316 SS threaded rod cut to length with nuts, washers & lock washers for the thru bolt connections instead of hex head bolts? S5.1.

No, the through bolts for extension wall (Section C, Drawing S 5.1) shall be hex bolts type.

There are PVC sleeves on the existing tie rods from the sheet pile wall to the deadmen.

Will there be PVC sleeves required on the new tie rods from the new sheet pile to the new deadmen?

No, please refer question number 10 of Addendum 2 for tie rod protection requirement.

Is the 5 piles per day maximum correct and a firm contract requirement for all PVC and FRP sheet piles, including the deadman?

Refer revised Appendix C document. Installation of synthetic main sheet piles (PVC or FRP) wall by Impact hammer are limited to a maximum10 piles per day.

No limitation for installing of synthetic main sheet piles (PVC or FRP) wall by Vibratory hammer. No limitation for installing deadman wall by Impact or Vibratory hammers.

Does "pile" mean a single sheet, or a pair or panel of interlocked sheets driven together?

Often pile means matched pair.

Pile means single Z profile sheet.

Combined with Section 1.a (sheet pile installation only at low tide with the substrate fully exposed), the 8:00 AM to 5:00 PM Monday through Friday work hours, and no phase overlap, this limit greatly extends the pile driving duration and the overall schedule. Will the Government extend the contract performance period to account for this limit? Has the government scheduled sufficient time?

Refer the revised limitation under response for question number 58.

Does the limit apply to piles set in place by excavators or pushed without a hammer, and to the upland FRP wall and deadman piles installed behind the shoreline that are not in or adjacent to the water? Does the low-tide requirement apply to upland work?

Refer to the revised limitation under response for question number 58 and revised Appendix C. Low tide requirement is limited to work below (waterward) the High Tide line. The limit does not apply to upland works.

Are days lost to tide, weather, or wildlife stop-work (manatee, sea turtle, sawfish within 50 feet) excusable time? Excusable delay with no cost to government.

RFI response 50 indicates one cedar tree is to be removed, while Appendix C section 4.d states approximately three mature red cedars will be removed for the access road.

It is estimated that maximum three (3) ceder trees to be removed at the entrance of the temporary access road to construct the road. This shall be finalize with the Contracting Officer prior to construction of the access road. No palm tree shall be removed to construct the access road. One Ceder tree near to the existing wall (refer Drawing S1.1) to be replaced with minimum 10 years old same species tree.

Gopher tortoise relocation is the contractor's responsibility. May tortoises be relocated on site within the park, and may the FWC permit application be filed before Notice to Proceed?

The gopher tortoise to be relocated within the park. A limited NTP can be provided to start the permit application. All habitat relocation requires prior coordination with Contracting Officer and based on the provisions of Preservation of Natural Features, Section 01 11 00 Item 1.6-E.

Field inspection qualifications (Specifications pp. 80-81 and the STSI report) a. Can a certified technician witness sheet pile installation and material inspections (tie rods, hardware, etc.) instead of the licensed Professional Engineer the specifications call for?

b. What level of certification or license is required for field inspection of the piling installation?

c. May the field inspector work under the direct control and supervision of a licensed PE?

The field inspector required for sheet pile driving operation may work under direct supervision of a licenses PE. License PE shall be available when Contracting Officer (or the representative) at the site and respond all questions.

Production limit of 5 piles per day (Amendment 0003, Appendix C, Section 1.c) Combined, the tide, protected-species, and park work-hour limits will stretch pile driving to roughly 128 workable days, and possibly many more. On many days the crew can work only a few hours, at a different time each day as low tide shifts. Is the Government aware of the cost of keeping the QC Manager, SSHO, Superintendent, pile driving crew, laborers, and PE on site for a few hours a day to install 5 sheets?

Normal production would be about 100 LF per day, so installation could cost about 12 times more than normal. It would also extend disturbance to the park and its visitors from a few weeks to 6-9 months or more, and push the work into hurricane season. A shorter installation period seems better for everyone involved.

Refer to the revised limitation under response for question number 58 and revised Appendix C.

Would the Government consider letting the contractor place the riprap along the shoreline first, as a cofferdam, together with a turbidity curtain? This would contain vibration and sediment to a small area right next to the sheet piles and allow more piles to be installed per day.

Refer to the revised limitation under response for question number 58 and revised Appendix C. Placing riprap prior driving sheet pile wall is not acceptable.

Since installation will take a long time, will the Government pay for materials on hand (stored on site or in a bonded off-site location) per FAR 52.232-5?

Yes, as long as the Contracting Officer can verify the materials either in person or through photos along with the corresponding invoice.

This also came up during the site visit, On sheet S5.1 details A,B,C – it calls for ¾” schedule 80 stainless steel pipe sleeves at the Tie Rods & Through Bolts. Can we use schedule 40 or 80 PVC for these sleeves since the purpose is to prevent the hardware from being in contact with the treated lumber. The PVC material would serve the same purpose & would provide a substantial cost saving to the project. We’d prefer to use schedule 40 PVC if acceptable. Please advise.

Marine grade, UV resistant Schedule 80 PVC pipe sleevs may be used as an alternate to Schedule 80 Stainless Steel pipe sleevs.

Sponsored by GSA FAR (48 CFR) 53.110

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