W912ES24Q0043-0001 Amendment 0001.pdf

W912ES24Q0043

W81G6740258352

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

The purpose of Amendment 0001 is to add information to the SOW, including para 3.1 and general site info.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 13

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

16C. DATE SIGNED

BY 30-Jan-2024

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 W912ES24Q0043

X 9B. DATED (SEE ITEM 11)

27-Jan-2024

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

30-Jan-2024

CODE

CONTRACTING DIVISION

USACE, ST PAUL

332 MINNESOTA STREET

SUITE E1500

ST PAUL MN 55101-1323

W912ES 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 10 00 - SOLICITATION

The following have been modified:

STATEMENT OF WORK

Lock and Dam No. 2- Concrete Crossover Joint Repair Scope of Work

1.1 GENERAL

The work shall consist of cleaning and preparing the joints, and properly install a polyurethane (PU) grout(s) through methods of pressure injection or an acceptable alternative method proposed by the contractor. The original copper water stops may have been compromised and soil movement through this joint appears to be occurring. A total of two (2), expansion joints (EJ) need repair and are located at the bottom of the dewatered lock at Lock and Dam No. 2 in Hastings, MN. The joints extend from the bottom of the lock chamber and end in the confined space vaults that house electrical conduit. The top of the landwall joint can be seen in Figure 2. The top of the riverwall joint can be seen in Figure 3. The crossover vaults run underneath the lock chamber and can only be accessible via a series of ladders. Each concrete crossover vault has an exterior perimeter of 9' x 9' (accessible dimensions of 6’ 6” x 4’ 6”) and the joint can be observed as see in drawing M-L2-20/33 FS in Appendix A. The contractor shall be responsible for all equipment, materials, labor, and other items and services required to accomplish the work. See Figure 1 for an overview of the project site. Figure 4 shows a view of water leaking into the crossover tunnel.

The lock chamber floor is accessible via stairs. The Government will have the lock chamber floor and crossover vault clear of silt/mud and will operate pumps to maintain the dewatered status.

Figure 1: Site Plan.

1.1 GOVERNMENT RESPONSIBILITY

The government has dewatered the lock chamber and will provide safe access to the lock chamber floor. Any access to the interior crossover vaults will be the contractor’s responsibility to ensure safe access of their employees. The lock chamber will remain dewatered during the duration of this contract.

1.2 CONSTRUCTION SCHEDULE

All work shall be completed between contract award and February 23, 2024. A mandatory site visit is required by the contractor prior to initiation of repair.

1.3 POINT OF CONTACT

Position Name Phone Email

Lockmaster Steve Heidbrider 651-290-5826 steven.g.heidbrider@usace.army.mil

Materials Engineers Steph Brunot 651-290-5326 steph.Brunot@usace.army.mil

Materials Engineers Jake Fall, P.E. 651-290-5242 jacob.l.fall@usace.army.mil

Contracting Officer Kenneth Eshom 651-290-5291 Kenneth.j.eshom@usace.army.mil

1.4 OFFER ITEMS

Offers will be evaluated based on the total of all the bid items. Reference projects of similar scope and complexity, with current phone numbers and contact names for verification. Reference the “Specification for Joint Repair” included in this solicitation for manufacturer and applicator qualification requirements.

1.5 DRAWINGS

Select as-built drawings of the crossover are included for reference.

1.6 SUBMITTALS

Submittals shall be approved before any material is installed in the joints.

1.7 SAFETY

All work shall be in conformance with the Corps of Engineers Safety and Health Requirements Manual EM 385-1-1 (latest edition), and will be the sole responsibility of the contractor. Copies of this manual will be furnished to the Contractor. The manual is available at the Corps of Engineers web site: http://www.usace.army.mil/publications/eng-manuals/

1.8 CLEAN-UP / RESTORATION

The contractor shall be responsible for clean-up of all work that is required in this contract. The contractor shall repair, at no expense to the Government, damage to the lock, and other existing facilities resulting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work. Clean adjacent surfaces soiled by the PU grout(s) installation. Pick up all old joint sealant, filler and debris from contractor’s operations and dispose of off-site properly.

SPECIFICATIONS FOR JOINT REPAIR

PART 1: GENERAL

1.1 SUMMARY

1.1.1 Required Materials Include

a. Exterior polyurethane elastomeric joint sealant.

b. Polyurethane grout(s).

c. Expansive Rope.

Comply with manufacturer’s recommendations and specifications. If manufacturer’s recommendations and specifications differ from those included in this scope of work, the manufacturer’s recommendations specifications shall govern.

1.2 REFERENCES

1.2.1 ASTM International

C 920-18 Standard Specification for Elastomeric Joint Sealants C 1193-16 Standard Guide for Use of Joint Sealants.

C 1330-18 Standard Specification for Cylindrical Sealant Backing for Use with Cold

Liquid-Applied Sealants D 1042-12 Standard Test Method for Linear Dimensional Changes of Plastics Caused by

Exposure to Heat and Moisture D 1752-18 Standard Specification for Preformed Sponge Rubber, Cork and Recycled

PVC Expansion Joint Fillers for Concrete Paving and Structural Construction

D 3574-17 Standard Test Methods for Flexible Cellular Materials Slab, Bonded, and Molded Urethane Foams

1.3 SUBMITTALS

1.3.1 Schedule

a. Submit for approval a detailed schedule for completion of the work.

1.3.2 Work Plan

a. Submit a description of the anticipated work to be performed. The Government reserves the right to accept or reject the plan.

b. Accident Prevention Plan (APP) A qualified person must prepare the abbreviated APP found in Appendix B. The APP must interface with the Contractor's overall safety and health program referenced in the APP in the applicable APP element and make site-specific. The Government considers the Prime Contractor to be the "controlling employer" for all work site safety and health of the subcontractors. Contractors are responsible for informing their personnel of the safety provisions under the terms of the Contract and the penalties for noncompliance, coordinating the work to prevent one craft from interfering with or creating hazardous working conditions for other crafts, and inspecting subcontractor operations to ensure that accident prevention responsibilities are being carried out. The APP must be signed by an officer of the firm (Prime Contractor senior person), the individual preparing the APP, the on-site superintendent, the designated SSHO, the Contractor Quality Control Manager, and any designated Certified Safety Professional (CSP) or Certified Health Physicist (CIH). Work cannot proceed without an accepted APP. Once reviewed and accepted by the Contracting Officer, the APP and attachments will be enforced as part of the Contract. Disregarding the provisions of the Contract or the accepted APP is cause for stopping of work, at the discretion of the Contracting Officer, until the matter has been rectified. Continuously review and amend the APP, as necessary, throughout the life of the Contract. Changes to the accepted APP must be made with the knowledge and concurrence of the Contracting Officer, project superintendent, SSHO and Quality Control Manager. Incorporate unusual or high-hazard activities not identified in the original APP as they are discovered. Should any severe hazard exposure (i.e. imminent danger) become evident, stop work in the area, secure the area, and develop a plan to remove the exposure and control the hazard. Notify the Contracting Officer within 24 hours of discovery.

Eliminate and remove the hazard. In the interim, take all necessary action to restore and maintain safe working conditions to safeguard onsite personnel, visitors, the public (as defined by ASSP A10.34), and the environment.

c. Refer to Appendix C for the District confined space program. Rescue equipment is required when Contractor personnel is entering a confined space. Government is available to inform contractor of potential hazards in or around confined space. The Government requires the presence of a Competent Person for fall protection onsite and personnel who wear fall protection equipment must be trained as an end user.

d. The Government will coordinate all Lock Out Tag Out to provide safe access to crossover pit.

1.3.3 Product Data and Material Safety Data

a. Materials list of items proposed to be provided under this Section; Submit expansion joint sealant, polyurethane grout, and expansive rope for review and approval.

b. Manufacturer's specifications and other data needed to prove compliance with the specified requirements.

c. Manufacturer's product Safety Data Sheets (SDS).

1.3.4 Manufacturer's Installation Instructions

a. Submit manufacturer’s published installation procedures.

b. Include instructions for preparing joints for repair.

1.3.5 Manufacturer's Certificate

a. Certify products are suitable for intended use and products meet or exceed specified requirements.

b. Certify applicator is approved by manufacturer.

1.3.6 Qualifications Data

a. Submit applicator's qualifications, including reference projects of similar scope and complexity, with current phone numbers and contact names for verification.

1.3.7 Manufacturer's Field Report

a. Indicate time present at project site.

b. Include observations, indicate compliance with manufacturer's installation instructions, provide results of hand pull tab testing, and supplemental instructions provided to applicators.

1.3.8 Manufacturer’s Warranty

a. Submit signed copies of warranty against adhesive and cohesive failure of sealant for period of 1 year from date of completion. Repair or replace joint sealants that fail to perform as intended, because of leaking, crumbling, hardening, shrinkage, bleeding, sagging, staining, loss of adhesion, loss of cohesion, and for failure to achieve air and watertight seal.

b. Submit standard manufacturer’s warranty covering defective material.

1.4 QUALIFICATIONS

1.4.1 Manufacturer

Company specializing in manufacturing products specified in this section with minimum ten years documented experience.

1.4.2 Applicator

a. Company specializing in performing work of this section with minimum three years documented experience, minimum three successfully completed projects of similar scope and complexity and approved by manufacturer.

b. Designate one individual as project foreman who shall be always on-site during installation. Foreman shall have a minimum of three years documented experience and a minimum of three successfully completed projects of similar scope and complexity.

1.5 DELIVERY, STORAGE, AND HANDLING

Deliver materials to site in original unopened containers or bundles with labels indicating manufacturer, product name and designation, color, expiration period for use, cure time, and mixing instructions. Store materials in cool dry location with ambient temperature range of 60 to 80 °F or as recommended by the manufacturer.

1.6 ENVIRONMENTAL REQUIREMENTS

The Contractor shall contain all contaminants and other debris. The contaminants and debris shall be properly disposed of off-site.

PART 2: PRODUCTS

2.1 EXPANSIVE ROPE

Natural jute rope comprised of strands, having a twist of approximately 1-1/4 turns per foot. The loose twist is easily unraveled to allow for fitting into joints or annular spaces from 1/2” to 2”. When combined with polyurethane grouts and water, the system swells to seal cracks, joints, and annular spaces.

Table 1: Characteristics for the Expansive Rope Weight .4 lbs. / ft at 2" dia.

Diameter Approximately: 2" (8 strands twisted) Conforms To Federal Specification HH-P-117 Material Jute

2.2 POLYURETHANE GROUT(S)

2.2.1 Hydrophilic Polyurethane Grout: This is a single component polyurethane low viscosity liquid resin designed to form a flexible gasket when injected into cracks and joints in concrete structures. The grout expands on contact with water and quickly cures to a tough, flexible foam that is resistant to most organic solvents, mild acids, alkali, petroleum, and micro-organisms.

Table 2: Characteristics for the Polyurethane Grout Resin Solids 100% ASTM D2369 Viscosity 200-350 cps at 73°F ASTM D2196 Density 1.02 g/cm3 ASTM D4659 Flashpoint >270°F ASTM D93 Cured Product Density Confined 1.00 g/cm3 ASTM D3574 Density Free about 3pcf ASTM D3574

Tensile Strength >174 psi ASTM D3574 Elongation % 100 ASTM D3574

2.2.2 Hydrophobic Polyurethane Grout: This a single-component polyurethane low viscosity injection resin designed to fill wide gaps in concrete, where the structure is not subject to movement. The grout expands on contact with water and expands to form a closed cell, watertight, rigid foam that is resistant to most organic solvents, mild acids, alkali, petroleum, and micro-organisms. A catalyst maybe required to adjust the reaction times.

Table 3: Characteristics for the Polyurethane Grout Resin Solids 100% ASTM D2369 Viscosity 75-125 cps at 72°F ASTM D2196 Density 1.02 g/cm3 ASTM D4659 Flashpoint >270°F ASTM D93 Catalyst Viscosity 15 cps at 77°F ASTM D2196 Flashpoint 221°F ASTM D93 Cured Product Tensile Strength >175 psi ASTM D3574/638 Elongation % ≥ 3.0 ASTM D3574/638

2.3 EXPANSION JOINT SEALANT

Single Component gun grade polyurethane sealant: ASTM C 920, Type S, Grade NS, Class 100/50, Use NT, single component, moisture curing, non-staining, non-bleeding, capable of being used for continuous immersion in water. Any primers, as required, recommended by the manufacturer of the specified product, approved by the COR.

PART 3: EXECUTION

3.1 PREPARATION OF EXISTING JOINTS

Clean joint surfaces of residual sealant, fillers, and other contaminates capable of affecting sealant bond to joint surface by wheel grinder, wire brush, joint cleaner, pressure washer, or other methods recommended by the sealant manufacturer. Prior to the installation of the expansive rope, the contractor shall ensure the joint surfaces are clean of debris and in a self-saturated dry (SSD) condition. No standing water shall be present within joint. The debris shall be removed from site and not allowed in the waterway.

3.2 INSTALLATION OF POLYURETHANE RESIN

Install Polyurethane resin in accordance with manufacturers recommendation. Hydrophobic polyurethane grout shall be injected along the exterior perimeter of the four (4) vertical and two

(2) bottom horizontal joints. Then the interior joint section will be injected with hydrophilic polyurethane grout.

3.3 INSTALLATION OF EXPANSIVE ROPE

The Contractor shall complete the installation of expansive rope in accordance with the manufacturer’s instructions or as stated herein, across the top 9 linear feet of each joint (18 linear feet total). The rope shall be soaked in the hydrophobic polyurethane resin and shall cover the joint completely up to the depth of the joint sealant. Ensure a minimum 1/2” from the top surface within the joint is free of expansive form and or other debris that may cause debonding during the joint sealant installation.

3.4 INSTALLATION OF JOINT SEALANT

Install joint sealants in accordance with ASTM C 1193 and manufacturer's instructions across the top 9 linear feet of each joint (18 linear feet total). Ensure that the sealant does not obstruct the tunnel or nearby conduit openings. Maintain finished joints free of embedded matter, ridges and sags during the curing period.

Figure 2:Shows the crossover joint located along the Landwall.

Figure 3:Shows the crossover joint located along the Riverwall.

Figure 4: View From Inside Crossover Tunnel

EPA Designated (CPG) Under the Comprehensive Procurement Guidelines (CPG) program, the Environmental Protection Agency (EPA)designates products that are or can be made with recovered materials, and recommends practices for buying these products. Any designated product that is being offered or supplied under this contract shall meet the minimum recommended content levels as identified under the CPG program. Visit http://www.epa.gov/epawaste/conserve/tools/cpg/products for a complete list of designated products and the associated recommended content levels. Offerors must be able to demonstrate that each offered product meets minimum content levels upon request.

Safer Choice The contractor shall provide Safer Choice labeled products under this contract, as applicable. The contractor is encouraged to visit http://www2.epa.gov/saferchoice/products for updated lists of qualifying products.

Bio-based The United States Department of Agriculture (USDA) designates certain biobased products for federal procurement and specifies minimum biobased content levels for those products. Any designated product that is being offered or supplied under this contract shall meet USDA BioPreferred’s minimum biobased content level. Visit the BioPreferred web site for the complete list of designated products and the associated minimum biobased content level requirements.

PART 4:

ATTACHMENTS

APPENDIX A: Project As-Built Drawings

APPENDIX B: Project CESI Checklist A-01 Abbreviated

APPENDIX C: DISTRICT CONFINED SPACE PROGRAM

END OF SCOPE OF WORK

QUOTE ITEMS

Item No.

Supplies / Services Quantity Unit Unit Price Amount

0001 Performance & Payment Bonds 1 Job

0002 Expansion Joints 72 Lineal Ft.

TOTAL

The payment provided for in the contract shall constitute full compensation for furnishing all materials and for performing all work under the contract in a complete and acceptable manner. The contract work shall include providing equipment, tools, supplies, labor, supervision, incidental materials, quality control, environmental protection, and meeting safety requirements, and for performing all work required for which separate payment is not otherwise provided. Compensation for all work shown, specified, or essential to completion of the project (whether the specific material or operation is indicated) shall be included on the bidding schedule. The payment provided for in the contract includes compensation for all risk, loss, damage, and expense arising out of the nature of the work or its prosecution, subject to conditions of the contract. Payment for each contract line item will constitute full compensation for furnishing the materials and constructing the work complete in place as specified.

(End of Summary of Changes)