W912PM23B0024 Amendment 0003.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

AMENDMENT 0003

Purpose: To incorporate, by amendment, changes to the solicitation derived from PROJNET Bidder Inquiries and the Government responses.

1. CONTRACT ID CODE PAGE OF PAGES

1 9

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

16C. DATE SIGNED

BY 12-Aug-2023

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 W912PM23B0024

X 9B. DATED (SEE ITEM 11)

10-Jul-2023

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

12-Aug-2023

CODE

USACE CONTRACTING, WILMINGTON DISTRICT

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

W912PM 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912PM23B0024

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0003

AMENDMENT 0003

Purpose: To incorporate, by amendment, changes to the solicitation derived from PROJNET Bidder Inquiries and the Government responses.

ATTACHMENTS:

RTA SPECS VOL1 AMENDMENT 0003

RTA SPECS VOL2 AMENDMENT 0003

RTA PLAN SET UNLOCKED AMENDMENT 0003

1. RE BIDDER INQUIRY 10352475:

Bidders are notified to ignore the requirement at SECTION 01 91 00.15 10, TOTAL BUILDING COMMISSIONING, 05/19, CHG 3: 05/22. Specification Section 01 91 00.15 10 TOTAL BUILDING COMMISSION (SECTION 01 91

00.15 10 Pages 1 – 17) is struck without replacement in entirety.

NOTE: This change will be incorporated in the specifications issued for award.

2. RE BIDDER INQUIRY 10352476:

Bidders are notified that PEB insulated wall panels are not required for this project. At Specification Section 13 34 19 METAL BUILDING SYSTEMS Subpart 1.4.8, strike without replacement “Provide field-assembled, insulated metal wall panels complete with vapor barrier conforming to ASTM E96/E96M.”

3. RE BIDDER INQUIRY 10352478:

Reference the attached photograph for the existing building manufacturer information.

“Philpott_Switchgear_Bldg_Existing.jpg”

4. RE BIDDER INQUIRY 10352478:

Reference the attached photograph for the existing building manufacturer information.

“Philpott_Switchgear_Bldg_Existing.jpg”

5. RE BIDDER INQUIRY 10352479:

Bidders are notified that appropriate temporary steel casing thickness shall be as selected by the contractor, except it shall not be less than 0.50 inches in thickness.

Section 31 63 26 Casing Steel, Subpart 2.1.3 -is changed:

From: “ASTM A36/A36M. Provide casings with an outside diameters not less than indicated shaft sizes and a minimum of 1/4 inch thick.”

To: “ASTM A36/A36M. Provide casings with an outside diameters not less than indicated shaft sizes and a minimum of 1/2 inch thick.

6. RE BIDDER INQUIRY 10352483:

Bidders are notified on Sheet ID C-402 of the contract drawings that the "80 L.F. of 24 inch HOPE Pipe" note is a relic from an abandoned prior routing. It shall be disregarded.

Sheet ID C-402 PHASE 1 EROSION & SEDIMENT CONTROL PLAN is removed from the contract drawing.

7. RE BIDDER INQUIRY 10352492:

Bidders are notified that a separate trailer for the DOR is not required it may co-located in the contractor’s trailer. A separate office space shall be no less than 60 square feet. It is to be separately lockable but it does not need to be in a separate trailer. The office is to have climate control (heat/air conditioning), 120 volt electric power and phone/high-speed internet communication. Water and sanitary facilities are to be provided in the immediate vicinity. The water and sanitary facilities may be shared with other contractor and/or government workers.

Office Trailer note on Sheet ID C-100 of the contract drawings states, is changed:

From: "Provide one lockable office space, fitted with a desk, a 2-drawer file cabinet and 2 chairs, within trailer for exclusive use by DOR field personnel."

To: "Provide one separately lockable office space, maybe co-located within contractor’s trailer, separate office space shall be no less than 60 square feet, climate control (heat/air conditioning), 120 volt electric power and phone/high-speed internet communication, fitted with a desk, a 2-drawer file cabinet and 2 chairs, within trailer for exclusive use by DOR field personnel."

8. RE BIDDER INQUIRY 10352496:

Bidders are notified that VADEQ Application No. 2023-0086 Permit issued as General Permit No.: VAR10, GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES. Find full text at: https://www.deq.virginia.gov/home/showpublisheddocument/8525/637547667064630000

The contractor IS responsible for meeting the requirements of the Storm Water Permit, including the nominal direct fees for its renewal.

9. RE BIDDER INQUIRY 10352505:

Bidders are notified that special inspections of seismic resisting systems and components per UFC 3-301 -01 will not be required on this project.

At Specification Section 31 63 26 SPECIAL INSPECTION AND TESTING FOR SEISMIC-RESISTING SYSTEMS, Subpart 3.7, strike without replacement “Perform special inspections and testing for seismic-resisting systems and components in accordance with UFC 3-301-01.”

10. RE BIDDER INQUIRY 10352507:

Bidders are notified that The asphalt cement binder should be provided as PG 64-10.

At Specification Section 32 12 16.16 ASPHALT CEMENT BINDER, Subpart 2.3, change:

“Performance Grade (PG)” to “Performance Grade (PG) PG 64-10.”

11. RE BIDDER INQUIRY 10355639:

Bidders are notified that the requirement for a PCI-Certified Erector, and/or a PCI-Certified Field Auditor will not apply to this project.

At Specification Section 03 45 33 PRECAST STRUCTURAL CONCRETE, strike in entirety without replacement Subparts 1.4.1.2 Erector Certification and 1.4.1.3 3 Erector Qualifications.

12. RE BIDDER INQUIRY 10355671:

Bidders are notified that steel elements of the Secant Pile Wall wale beam, which will be fully encased in concrete, do not need to be finished. The anchor elements and any wale beam steel elements which will be exposed do need to be primed and coated.

13. RE BIDDER INQUIRY 10368070:

Bidders are notified that the limit shown for Region 2, on Sheet ID C-106 extends along the concrete retaining wall forming the enclosure for the transformer and associated transmission structure. It is expected that the contractor will remove the soil (and weathered rock) overburden right up to the concrete. This will require the removal of the existing fence.

Current plans include installation of a rockfall catchment fence at this location but do not require the replacement of the chainlink fencing.

14. RE BIDDER INQUIRY 10368685:

Bidders are notified that tied cages may be accepted in lieu of welded cages provided sufficient ties and brace wires are utilized to produce a stiff structure which will hold its proper shape during lifting, installation and concrete placement.

The requirement for a PCI-Certified Erector, and/or a PCI-Certified Field Auditor will not apply to this project.

At Specification Section, 31 63 26 DRILLED SHAFTS, Subpart 2.1.1.2 REINFORCING STEEL, make the following change:

STRIKE: “2.1.1.2 Reinforcing Steel Provide reinforcing steel conforming to ASTM A615/A615M, welded into cages in accordance with AWS D1.4/D1.4M and inserted securely in the secondary shafts, in position and alignment, as shown, prior to concrete placement. The cages shall be constructed of vertical reinforcement steel shall be composed of No.

11 steel rebar and the ties composed of No. 5 steel rebar.”

REPLACE WITH: “2.1.1.2 Reinforcing Steel Provide reinforcing steel conforming to ASTM A615/A615M, welded into cages in accordance with AWS D1.4/D1.4M and inserted securely in the secondary shafts, in position and alignment, as shown, prior to concrete placement. Tied cages may be accepted in lieu of welded cages provided sufficient ties and brace wires are utilized to produce a stiff structure which will hold its proper shape during lifting, installation and concrete placement. The cages shall be constructed of vertical reinforcement steel shall be composed of No.

11 steel rebar and the ties composed of No. 5 steel rebar.”

15. RE BIDDER INQUIRY 10369425:

Bidders are notified that the thickness of concrete at the existing groin ditch location shown on sheet C-104 (replacement flume) along the rock/dam contact shall be dimensioned to match the existing flume, both in width, thickness and depth. In locations where no flume currently exists the new flume shall be 3 feet wide, a minimum of 6-inches in thickness and a minimum of 6-inches deep.

NOTE: This information and additional details as required will be incorporated into Drawing C-104 issued for award.

16. RE BIDDER INQUIRY 10369858:

Bidders are instructed as follows regarding the detailed drawings, sizing and dimensions for manholes and surface inlet structures.

See sheet C-203 for the sizes/standards for the inlet and headwall structures: D1-2, D1-3, D1-4, and Concrete headwall. Manholes J1 is a 60" VDOT 103.11 B-1 base unit. Manholes J2 and J3 are 48" VDOT 103.11 B-1 base units, and drop inlet D1-6 is a VDOT Dl-12C . Manhole Barrels, Top Slabs and Castings shall match the specific base and be as indicated in VDOT 103.09, 103.10 and 103.11.

Notes on C-203 have been updated to reflect manhole information.

17. RE BIDDER INQUIRY 10372351:

Bidders are notified that the protective cap will conform to Detail 1 on Drawing C-505.

The image on C-503 is conceptual only. The contractor is responsible for designing the anchor details, including how the protective cap will be affixed to the concrete and how water tightness of the anchor head space will be maintained.

18. RE BIDDER INQUIRY 10372353:

The response to this inquiry is changed without a change to the specifications. Update the response recorded in PROJNET:

FROM: “…The per anchor pricing should envision likely and possible grouting and redrilling.”

TO: “…The contractor’s per anchor pricing, should reflect the contractor’s best business decision as to their estimated likely and possible grouting and redrilling.”

19. RE BIDDER INQUIRY 10372374:

Bidders are notified that Special inspections of seismic resisting systems and components per UFC 3-301-01 will not be required on this project. Specifications Sections 31 63 26 DRILLED SHAFTS, Subpart 3.7 SPECIAL INSPECTION AND TESTING FOR SEISMIC-RESISTING SYSTEMS is Striken without replacement.

20. RE BIDDER INQUIRY 10373409:

Specification Section 31 63 26 DRILLED SHAFTS, Subpart 1.3.3.1 Post Installation Integrity Test is changed as follows:

CHANGE FROM: 1.3.3.1 Post-Installation Integrity Test The Contract includes performing CSL and TIP testing on the first 2 secondary shafts installed and 1 additional shaft to be determined at the discretion of the Contracting Officer.

CHANGE TO: 1.3.3.1 Post-Installation Integrity Test The Contract includes performing CSL and TIP testing on the first 2 secondary shafts installed and 1 Proof Test hole will be advanced in Each Secondary Shaft.

21. RE BIDDER INQUIRY 10373413:

Specification Section 31 63 26 DRILLED SHAFTS, Subpart 1.6.6 Government Inspection is changed as follows:

CHANGED FROM: 1.6.6 Government Inspection The Contracting Officer will inspect each drilled pier excavation. Do not place concrete until the excavation has been approved by the Contracting Officer. Furnish the Contracting Officer all necessary equipment required for proper inspection of drilled pier excavations.

CHANGED TO: 1.6.6 Government Inspection The Contracting Officer or his/her designee will inspect each drilled pier excavation. Do not place concrete until the excavation has been approved by the Contracting Officer. Furnish the Contracting Officer or his/her designee, all necessary equipment required for proper inspection of drilled pier excavations. The same equipment used by the contractor shall be available to the Government inspector but shall be operated by the contractor at no additional cost to the Government. At a minimum this will include access to the camera and appropriate equipment to safely enter the shaft for a direct inspection (adequate casing, tripod, hoist, gas meter, water pump, probe rod, etc.)

22. RE BIDDER INQUIRY 10373423:

Specification Section 31 63 26 DRILLED SHAFTS, Subpart 2.1.4 Post Installation Integrity Test Materials is changed as follows:

CHANGED FROM: 2.1.4 Post Installation Integrity Test Materials

Provide necessary materials and equipment to perform cross-hole sonic logging and thermal integrity profiling in accordance with ASTM D6760 and ASTM D7949 (wire option).

CHANGED TO: 2.1.4 Post Installation Integrity Test Materials Provide necessary materials and equipment to perform cross-hole sonic logging and thermal integrity profiling on 3 piles. The specific piles will be identified by the Government before or during drilling. Perform cross-hole sonic logging and thermal integrity profiling in accordance with ASTM D6760 and ASTM D7949 (wire option).

23. RE BIDDER INQUIRY 10374721:

Specification Section 31 68 13 WALL SUPPORT ROCK ANCHORS, Subpart 3.4.3 3.4.3 Supplementary Extended Creep Test is changed as follows:

CHANGED FROM: 3.4.3 Supplementary Extended Creep Test Where specified, anchors must have an extended creep test performed. Creep test must consist of cyclically and incrementally loading and unloading the anchor, and will be conducted in accordance with PTI DC35.1, Paragraph 8.3.4. Each maximum load must be held in accordance with PTI TAB.1, Table 8.3.4. A plot of each family of creep curves must be submitted along with the recorded readings taken at time of the test.

CHANGED TO: 3.4.3 Supplementary Extended Creep Test Where specified, anchors must have an extended creep test performed. Creep test must consist of cyclically and incrementally loading and unloading the anchor, and will be conducted in accordance with PTI DC35.1, Paragraph 8.3.4. Each maximum load must be held in accordance with PTI TAB.1, Table 8.3.4. A plot of each family of creep curves must be submitted along with the recorded readings taken at time of the test.

Extended creep tests will only be required if anchor bond zones occur in significantly decomposed bedrock. In this case a minimum of 2 extended creep tests will be required.

24. RE BIDDER INQUIRY 10384417:

Specification Section 31 63 26 DRILLED SHAFTS, Subpart 3.2 INSTALLATION at paragraph a. is changed as follows:

CHANGED FROM: 3.2 INSTALLATION

a. Continuously place concrete by methods that ensure against segregation and dislodging of excavation sidewalls, and completely fill the shaft. Place concrete by pumping or drop chutes in dry holes and by tremie or pumping in wet holes. Keep the discharge a minimum of 3 feet below the fresh concrete surface during placement. Drilling of shafts or driving of casings must not be within 20 feet of concrete placed within the last 3 days.

CHANGED TO: 3.2 INSTALLATION

a. Continuously place concrete by methods that ensure against segregation and dislodging of excavation sidewalls, and completely fill the shaft. Place concrete by pumping or drop chutes in dry holes and by tremie or pumping in wet holes. Keep the discharge a minimum of 3 feet below the fresh concrete surface during placement. Drilling of shafts or driving of casings must not be within 20 feet of concrete placed within the last 3 days. (Amendment 0003) The 20 foot distance can be considered the center to center spacing of the two piles in question.

25. RE BIDDER INQUIRY 10384419:

Where specific values are not indicated in the plan set ACI code or guidance values are to be used. The bottom of the primary steel shall be at least 3 inches and no more than 6 inches above the bottom of the drill hole. It is expected that the No. 11 primary bars will be supplied without splices. If they are spliced, the laps shall be per ACI requirements, not less than 76 inches. The No. 5 tie bars shall lap a minimum of 28 inches.

NOTE: The bottom of shaft to steel dimension will be added as notes on Drawings C-501 and C-502 in the Plan Set issued for award.

26. RE BIDDER INQUIRY 10384422:

The response to this inquiry is changed without a change to the specifications. Update the response recorded in PROJNET:

FROM: “It is expected that the No. 5 bars for the parapet we installed before pile / cap concrete placement. …”

TO: “It is expected that the No. 5 bars for the parapet be installed before pile / cap concrete placement. …”

27. RE BIDDER INQUIRY 10384526:

Bidders are notified that Metal building system structural framing members are to receive red oxide primer.

Galvanized structural framing members are not required.

Specification Section 13 34 19 METAL BUILDING SYSTEMS, Subpart 2.1.11 PRIMER is changed as follows:

CHANGED FROM: 2.1.11 Primer SSPC-Paint 15, Type I, red oxide

CHANGED TO: 2.1.11 Primer Metal building system structural framing members are to receive red oxide primer - SSPC-Paint 15, Type I, red oxide.

28. RE BIDDER INQUIRY 10384526:

Bidders are notified that Metal building system structural framing members are to receive red oxide primer.

Galvanized structural framing members are not required.

Specification Section 13 34 19 METAL BUILDING SYSTEMS, Subpart 2.1.11 PRIMER is changed as follows:

CHANGED FROM: 2.1.11 Primer SSPC-Paint 15, Type I, red oxide

CHANGED TO: 2.1.11 Primer Metal building system structural framing members are to receive red oxide primer - SSPC-Paint 15, Type I, red oxide.

29. RE BIDDER INQUIRY 10384578:

Make the following revision to Specification Section 31 63 26 Subpart 1.3.3.2 Proof Test Hole change

CHANGE FROM:

"The Contract includes 1 proof test hole."

CHANGE TO:

"The Contract includes 1 proof test hole per Secondary Secant Pile"

30. RE BIDDER INQUIRY 10359890 and 10378320:

Bidders are notified that a variance may be approved by the Contracting Officer , to use Type 1 L Portland -limestone cement conforming to ASTM C-595 substituted for Type 1 Portland cement. provided 1) All of the requirements in the specifications (other than cement type) are adhered to, 2) The Contracting Officer’s designee is furnished the cement manufacturer’s report showing the results of test performed on the limestone used in the manufacture of the Type 1 L cement shipped to the project, 3) Only one brand of Type 1 L cement is used throughout the project, and 4) The Type 1 L blended cement shall be an intimate and uniform blend produced by intergrinding of the Portland cement and limestone. Complete historical strength data (on Type 1 L cement concrete) shall be provided to Contracting Officer or his/her designee for the proposed mixes.

Make the following revision to Specification Section 31 63 26 Subpart 1.3.3.2 Proof Test Hole change

CHANGED FROM: “2.3.1 Portland Cement

a. Unless otherwise specified, provide cement that conforms to ASTM C150/C150M Type I.”

CHANGE TO: “2.3.1 Portland Cement

a. Unless otherwise specified, provide cement that conforms to ASTM C150/C150M Type I. Note: A variance may be approved by the Contracting Officer, to use Type 1 L Portland - limestone cement conforming to ASTM C-595 substituted for Type 1 Portland cement"

31. RE BIDDER INQUIRY 10384425:

The details of the rock anchor are to be established by the contractor's anchor designer. The length of smooth PVC shown will be revised as required by that design of the contractor's anchor designer.

In the general detail provided the unbonded zone condition is achieved by 2-stage grouting and the smooth PVC is intended to provide additional corrosion protection within the retained length of casing. Since the Philpott anchors will have the head accessible to later lift-off testing and (if needed) re-stressing, the bond breaker should extend the full unbonded length of the tendons. Design was based on the assumption that the anchor bond zone would be within "competent" rock. As such, the minimum unbonded length should be taken as the greater of 20 feet, half the total pile depth and the total distance required to penetrate the soil and highly weathered rock plus 3 feet. All failures surfaces identified were located within the soil and highly weathered rock.

NOTE: Notes stating these unbonded length requirements will be added to Drawing C-503 in the Plan Set issued for award.

SECTION A - SOLICITATION/CONTRACT FORM

The Issued By organization has changed from

U S ARMY CORPS OF ENGINEERS, WILMINGTON

WILMINGTON DISTRICT

ATTN: CONTRACTING DIVISION

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

to

U S ARMY CORPS OF ENGINEERS, WILMINGTON

CONTRACTING - WILMINGTON DISTRICT

69 DARLINGTON AVENUE

WILMINGTON NC 28403

(End of Summary of Changes)