Amendment No 005_0005.pdf

(x)

140R6020R0034 x x copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT 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.

Billings MT 59107

R60

PO Box 36900 Regional Office Great Plains Region Bureau of Reclamation

11/17/20200005

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.

Items 8 and 15, and returning

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

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended,

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

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

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

09/18/2020

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

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

See attachment for changes incorporated by this amendment:

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Stormy Gallagher

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

x

Solicitation# 140R6020R0034

Amendment No. 0005

Description of Changes:

1. In Part I – The Schedule, Section C – Specifications, remove Section 35 21 23

Hydraulic Piping Replacement in its entirety and substitute therefor the attached Revised Section

35 21 23 Hydraulic Piping Replacement.

For convenience, essential changes on the revised solicitation pages are indicated by a vertical line in the margin where lines or paragraphs changed from the previous version. However, all portions of the revised solicitation pages shall apply whether changes thereon have or have not been indicated.

Acknowledgement: See Block 11 above regarding how to acknowledge this amendment. The

Government must receive the acknowledgement at the place designated for receipt of bids (See Block

10 of the Standard Form 1442).

Closing Date for the Receipt of Proposals- The hour and date for receipt of proposals is hereby extended to December 2, 2020 at 1300 MST.

Third Party: If you have given a copy of the solicitation to someone else, please forward this amendment accordingly.

Bonny Dam Amendment No. 0005 Outlet Works Recoating Specification No 60-C0679

Hydraulic Piping Replacement Revised 35 21 23 - 1

SECTION 35 21 23

HYDRAULIC PIPING REPLACEMENT

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Hydraulic Piping Replacement:

1. Measurement: Linear feet of piping to be replaced.

2. Payment: Unit price offered in the Price Schedule, to include the following:

a. Drain and clean the existing hydraulic system.

b. Disassemble and remove the existing hydraulic piping, fittings, valves, and support hardware between the gate (Station 4+75.37) and the conduit access house (approximate Station 10+55).

c. Dispose of the discarded materials and hydraulic oil.

d. Design, furnish, and install new stainless steel hydraulic piping, fittings, valves, and support hardware.

e. Furnish and install new hydraulic oil within the system.

f. Test and commission the new system.

1.02 REFERENCE STANDARDS

A. ASTM International (ASTM)

1. ASTM A312/A312M-19 Seamless, Welder, and Heavily Cold Worked Austenitic Stainless Steel Pipes

2. ASTM A351-18e1 Castings, Austenitic, for Pressure-Containing Parts

3. ASTM A403-20 Wrought Austenitic Stainless Steel Piping Fittings

B. Society of Automotive Engineers International (SAE)

1. Available at www.sae.org.

1.03 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 – Submittals.

B. RSN 35 21 23-1, Approval Drawings:

1. Hydraulic schematic drawing, showing complete hydraulic system with existing and new line sizes.

http://www.sae.org/

Hydraulic Piping Replacement

Revised 35 21 23 - 2

2. Detailed design drawings, clearly showing all necessary parts, materials, dimensions, locations, construction details, and wall mounting attachments and accessories.

3. Use similar part references as shown in Information Drawing No. 331-D-59. New part numbers shall not conflict with features to remain in place.

4. Demonstrate compatibility with existing conditions and features, including (but not limited to):

a. Operability consistent and compatible with the existing system.

b. Details of the connections between the new piping and the existing system, including adapters to account for the increase in pipe size, and electrical isolation to prevent galvanic coupling of dissimilar metals.

c. No conflicts with other systems (e.g. air ducts, electrical conduit, etc.).

d. No conflicts with existing support bracket anchor bolt locations.

C. RSN 35 21 23-2, Commercial Products Data:

1. Provide product data for all parts, demonstrating compliance with requirements detailed in this Section.

D. RSN 35 21 23-3, Material Certifications:

1. Provide documentation that new parts and materials meet the requirements in Part 2 of this Section.

E. RSN 35 21 23-4, Replacement Procedures:

1. Provide detailed, step-by-step procedures and equipment to be used by the Contractor for the work described herein, including (but not limited to):

a. Setup.

b. Drainage of existing hydraulic oil.

c. Removal and disposal of specified portions of system.

d. Installation of new parts and materials.

e. Flushing, refilling, and venting of system.

f. Testing and commissioning the modified system.

F. RSN 35 21 23-5, Final Drawings and Data:

1. Documentation of any departures from the original design due to constructability or availability of parts.

a. Commercial product data for any replaced parts, demonstrating compliance with requirements detailed in this section.

b. Installation drawing(s) showing departures from original design.

c. Hydraulic schematic drawing showing all new line sizes.

Revised 35 21 23 - 3

d. Original drawings marked up with alterations shall be considered acceptable.

2. Results of Set Pressure Devices test and Contractor Field Quality Testing.

3. Photographs:

a. Front, left and right sides, and left and right oblique views of the new piping.

1.04 PROJECT CONDITIONS

A. Details of the existing hydraulic system are shown on Information Drawing No.

331-D-59 in Section 52 00 00 – Drawings.

1. The existing hydraulic piping is made of 3/4-inch O.D. extra strong black steel pipe, with fittings, valves, and support brackets to match.

2. The gate bonnet cover and cylinder head are made of cast iron and cast steel, respectively.

3. The piping passes between the gate chamber and the access tunnel through sleeves embedded in the concrete.

B. Existing coatings on hydraulic piping may contain regulated metals. Refer to Section 51 02 83 – Existing Coatings Analysis.

C. Existing hydraulic oil does not contain polychlorinated biphenyls (PCBs). Refer to Section 51 35 21 – Hydraulic Oil Analysis.

D. Operation of the outlet works gate controls by the Contractor will not be permitted.

Where gate operation is required, it will be performed by Government personnel.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Hydraulic Piping and Appurtenances:

1. Protect parts from corrosion, deformation, and other types of damage.

2. Block and secure to prevent damage due to vibration, rubbing, or shifting during transit.

3. Plug or cap open hydraulic ports or hydraulic piping to prevent entry of dirt, water, or other contaminants.

B. Hydraulic Oil:

1. Ship, store, and handle new hydraulic oil in accordance with manufacturer’s recommendations.

Revised 35 21 23 - 4

PART 2 PRODUCTS

2.01 HYDRAULIC PIPING AND APPURTENANCES

A. Hydraulic Piping, Valves, and Fittings:

1. Piping Size: 1-inch (nominal)

2. Material: Type 316 stainless steel, socket welded

a. Pipes: ASTM A312, Schedule 40S, seamless

b. Valves: ASTM A351

c. Fittings (elbows, tees, plugs, etc.): ASTM A403

3. Minimum Pressure Rating:

a. Working: 1,000 psi at 72 degrees Fahrenheit (°F).

b. Burst: 6,000 psi (i.e. Safety Factor = 6)

4. Accessories not listed above shall meet requirements herein for pressure, sizing, compatibility, etc., and are subject to approval by the Government.

5. Piping shall be hydrostatically tested to minimum working pressure.

6. Connections to existing system shall provide electrical isolation to prevent galvanic coupling of dissimilar metals.

B. Support Brackets and Hardware:

1. Material: Type 316 stainless steel

2. Maximum spacing: 10 feet

3. Minimum anchor embedment depth: 4 inches

4. Compatibility with existing conditions and new features.

2.02 HYDRAULIC OIL

A. To be furnished by the Contractor.

B. Ensure compatibility with existing oil (SAE No. 10). Use a clean, light hydraulic oil, rust and oxidation inhibited and having a Saybolt Universal viscosity of 150 seconds at 100°F.

C. Approximately 100 gallons of oil are required to fill the system.

Revised 35 21 23 - 5

PART 3 EXECUTION

3.01 DRAINAGE OF HYDRAULIC CONTROL SYSTEM

A. Using part references shown in Information Drawing No. 331-D-59, develop and submit for approval a detailed, step-by-step sequence for draining the hydraulic control system.

Drain the hydraulic control system according to approved drainage plan.

1. Size, locate and install temporary oil containment to collect the fluid from the system, as well as contain any possible fluid leakage while modifying, disconnecting, or connecting hydraulic fluid lines.

2. Do not allow air to enter the lower port of the gate hoist. Loosen connections if necessary to fully drain oil from the hoist cylinder.

B. Before draining the hydraulic control system, Government personnel will:

1. Raise the guard gate to the fully open position.

2. Ensure that all valves are in their normal positions.

C. Handle used hydraulic oil in accordance with Section 02 87 20 – Removal and Disposal of Used Oil.

D. Oil drained from connecting lines may not be re-used.

E. After draining the system, thoroughly clean the hydraulic oil storage tank of all rust, debris, residue, water, and other foreign material using a suitable solvent.

3.02 REMOVAL OF HYDRAULIC PIPING

A. Disassemble and remove all hydraulic piping and appurtenant fittings and support structures between the outlet works slide gate (Station 4+75.37) and the conduit access house (approximate Station 10+55) in accordance with Section 02 83 33 – Removal and Disposal of Equipment with Coatings Containing Regulated Metals.

B. Plug or cap all opened lines to prevent entry of cleaning agents and other contaminants.

3.03 INSTALLATION OF HYDRAULIC PIPING

A. Replace removed hydraulic piping and appurtenances with stainless steel components as specified herein.

B. Place and secure all equipment and appurtenances per approved plans.

C. Finished hydraulic piping is to be neat in appearance with all sharp edges, corners, welds, and other surface irregularities ground smooth.

D. Take special care to keep the hydraulic system absolutely clean and free from all dirt, moisture, and other contaminants at all times.

Revised 35 21 23 - 6

E. Install hydraulic lines as follows:

1. Prepare ends for welding.

2. Ream fit, thoroughly clean, and install so that joints are oil-tight and the installation is neat in appearance.

3. Completely de-burr and thoroughly clean each fluid line subassembly after fabrication but before installation in system. Clean inside surfaces near welded joints, using power-driven flue or tube wire brush.

4. In addition, clean all fluid lines by:

a. Drawing lint-free cloth impregnated with suitable solvent through fluid lines.

b. Drain the excess solvent and dry interior of fluid lines with blast of dry clean compressed air which has been filtered through dirt and moisture trap.

c. Keep any foreign matter from entering the system during or after fabrication.

5. Fabricate fluid line subassemblies in maximum lengths to minimize the number of O-ring fittings used. All connections within a subassembly are to be socket welded. Subassemblies are to be connected together using SAE O-ring flanges.

6. Flush and clean each hydraulic fluid line subassembly by circulating hydraulic fluid through the fluid line subassemblies and an external 5 micron filter until no contaminants remain on the filter.

7. Support all piping in a similar manner as originally supported, avoiding damaged areas and embedded reinforcement wherever possible when placing anchors.

3.04 FLUSHING, FILLING, AND VENTING OF HYDRAULIC CONTROL SYSTEM

A. Using part references in approved drawings, develop and submit for approval a detailed, step-by-step sequence for flushing, filling, and venting the hydraulic control system in preparation for continued use.

1. Flush all grit and foreign material from the system with new hydraulic oil meeting the requirements specified in this Section.

2. Air and oil under high pressure is explosive. Vent air from the system before allowing the system to achieve operating pressure.

3.05 CONTRACTOR FIELD QUALITY TESTING

A. All testing shall be conducted in the presence of the COR. Notify the COR at least 14 days in advance of when tests are to be performed.

B. After filling and venting is complete, the Government will perform a pressure leak test by applying oil pressure of 1,000 pounds per square inch through the bypass valve near the gate hoist.

Revised 35 21 23 - 7

1. Following the test, the system will be checked for leaks.

2. The Contractor shall repair any leaks and re-test until no leaks are found.

3. The Contractor shall submit results of system testing as final data.

C. After all adjustments have been made, Government will perform testing of the system by operating the gate through at least three complete cycles to check operation and to ensure proper operation of all hydraulic and electric components as follows:

1. All gate operations will be performed by Government personnel only.

2. Submit written record of testing results of the following:

a. Hydraulic pressure at the pump and at the gate hoist during opening and closing of the gate.

b. Total operating time during operation of each gate in the opening and closing directions.

c. Final settings for all gates (reset to normal positions).

3. Submit results of system testing as final data.

3.06 DISPOSAL

A. Dispose of removed materials as identified above in accordance with Section 01 74 00 – Cleaning and Waste Management, Section 02 83 33 – Removal and Disposal of Equipment with Coatings Containing Regulated Metals, and Section 02 87 20 – Removal and Disposal of Used Oil.

END OF SECTION

Revised 35 21 23 - 8

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