W912ES20Q0003-0002 Amendment 2.pdf

W81G6701921289

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 0002 is to clarify the timing of w ork, w ith changes to SOW para. 1.2 and 1.3. The amendment also changes the completion dates of Items 0002 - 0004, and SF 1442 Block 11 from 60 calendar days to 10 calendar days.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 12

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

16C. DATE SIGNED

BY 29-Jul-2020

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 W912ES20Q0003

X 9B. DATED (SEE ITEM 11)

16-Jul-2020

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

29-Jul-2020

CODE

CONTRACTING DIVISION

USACE - ST. PAUL

180 5TH STREET E SUITE 700

ST. PAUL MN 55101-1678

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

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912ES20Q0003

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 00 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

The following have been modified:

STATEMENT OF WORK

HOMME DAM

SPILLWAY JOINT SEALANT

REPAIRS

1.1 GENERAL

SCOPE OF WORK

The work shall consist of removing the current joint sealant, backer rod, and Turbo Seal, clean and prepare the joints, and properly install a polyurethane grout / expansive rope and a joint sealant. The contractor shall be aware that the joint repair work includes all expansion joints (EJ) and construction joints (CJ) extending a minimum of 2 feet upstream of the ogee crest to the end sill at the downstream end of the stilling basin at Homme Dam near Park River, ND. The Contractor shall be responsible for all equipment, materials, labor and other items and services required to accomplish the work.

1.2 GOVERNMENT RESPONSIBILITY

The Contractor shall give the Government two weeks’ notice prior to the start of on-site work. The Corps of Engineers will start drawing the Homme Dam pool down 3 feet below the top of the ogee crest. Drawdown will begin no earlier than 1 September 2020.

1.3 CONSTRUCTION SCHEDULE

Onsite work shall begin after approval of pre-construction submittals and conduct of the pre-construction meeting. Work shall be complete no later 1 November, but installation of sealant may not proceed if ambient temperatures are below manufacturer's recommendations for installation. Work may begin prior to 1 September, but the Corps of Engineers will not begin drawdown of the Homme Dam pool until 1 September, or after (dependant on contractor notification), so it is probable that the joints upstream of the ogee crest will be underwater or subject to wave action until drawdown has occurred. The Corps of Engineers will drawdown the pool by three feet, but an extreme rain event may cause overtopping of the ogee crest. For safety and construction purposes the Contractor must monitor weather conditions and forecasts at the site.

1.4 ACCESS

Access gates to the spillway are located on each side of the spillway approximately 70 feet down from the spillway crest. The contractor shall erect on one side temporary scaffolding with stairs from on top of the dam abutment wall down to the spillway. The concrete spillway surface, shall be cleaned to provide a safe walking surface. All debris, such as driftwood, shall be removed prior to joint preparation. The Government will supply a Flygt 3153 pump to dewater the stilling basin. The contractor shall supply a 30kw generator with a minimum capacity of 14 AMPS to operate the pump. The contractor shall fully dewater the stilling basin and sufficiently clean the exposed joints. The contractor shall inform the government a minimum of 5 day prior to starting the work within the stilling basin.

1.5 BID ITEMS

Bids will be evaluated based on the total of all the bid items. Submit the sealant applicators, including reference projects of similar scope and complexity, with current phone numbers and contact names for verification. Reference the “Specification for Joint Sealant Replacement” included in this solicitation for manufacturer and applicator qualification requirements.

1.6 PRE-CONSTRUCTION MEETING

After the contractor has been given notice to proceed, the contractor shall attend a preconstruction meeting with the COR at the U.S. Army Corps of Engineers Western Area office in Fargo, ND. The purpose of this meeting is to discuss construction schedule, safety, work hours, scope of work, and to review other contract requirements.

The contactor shall conduct an on-site meeting during the preparation and sealing of the first joints (prototype joints). The contractor shall coordinate and schedule the meeting such that the sealant manufacturer’s representative and the COR are in attendance. The sealant manufacturer’s representative shall submit a report including observations, compliance with Manufacturer’s installation instructions, and any supplemental instructions provided to the contactor.

1.7 DRAWINGS

Select as-built drawings of the dam spillway are included for reference. Location of the joints to be repaired are shown in Appendix A: Figure 1 and 2.

1.8 SUBMITTALS

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

1.9 SAFETY

All work shall be in conformance with the Corps of Engineers Safety and Health Requirements Manual EM 385-1-1 (latest edition). 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/

1.10 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 dam, 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 sealant installation. Pick up all old joint sealant, filler and debris from contractor’s operations and dispose of off-site properly.

SPECIFICATIONS FOR JOINT SEALANT REPLACEMENT

PART 1: GENERAL

1.1 SUMMARY

1.1.1 Required Materials Include

a. Exterior polyurethane elastomeric joint sealant.

b. Expansive rope with polyurethane grout.

c. Bond breaker tape.

d. Non-Shrink Grout

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 42-18 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

C 920-18 Standard Specification for Elastomeric Joint Sealants C 1107-17 Packaged Dry, Hydraulic-Cement Grout (Non-shrink) 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 Shop Drawings

a. Submit for approval details to show installation of sealants if in contradiction with those provided and recommended by joint sealant manufacturer.

1.3.3 Product Data

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

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

1.3.4 Manufacturer's Installation Instructions

a. Submit manufacturer’s published installation procedures.

b. Include instructions for preparing joints for new sealant.

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 QUALITY CONTROL

1.4.1 Field Testing

The manufacturer’s representative shall randomly perform hand pull tab tests in accordance with ASTM C 1193 Appendix X1, Method A and the following:

a. The manufacturer’s representative shall perform a minimum of one test within the first 100 feet of installed joint sealant.

b. Test shall be witnessed by the applicator and the COR.

c. Locations of tested joints shall be as approved by the COR.

d. When test indicates sealant adhesion failure, modify joint preparation, retest until joint passes sealant adhesion test, and test additional joints as recommended by the sealant manufacturer’s representative and approved by the COR.

e. Repair the sealant pulled from the test area. Assuming acceptable adhesion was obtained, use the same application procedure to repair the area as was used originally for the joint.

f. The manufacturer’s representative shall submit a report with test results and any supplemental instructions provided to the applicators.

1.5 QUALIFICATIONS

1.5.1 Manufacturer

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

1.5.2 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 on site at all times 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.

1.6 PROTOTYPE JOINT INSTALLATION

Coordinate and schedule a prototype joint installation on-site meeting such that the sealant manufacturer and the COR are in attendance. Prepare joints and install sealants in prototypes as specified including sealant and joint accessories to illustrate installation quality and color.

Incorporate accepted prototype as part of work.

1.7 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.

1.8 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

Hydrophobic polyurethane grout 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 550 cps at 77°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

Density Confined 1.00 g/cm3

ASTM D3574

Density Free about 3pcf ASTM D3574

Tensile Strength >174 psi ASTM D3574

Elongation % 100 ASTM D3574

2.3 NON-SHRINK GROUT

Use a non-shrink grout in accordance with ASTM C 1107.

2.4 BOND BREAKER TAPE

Used for containing expansion material. The tape shall be a self-adhesive, pressure sensitive tape, usually made from a TFE fluorocarbon or polyethylene material, to which a sealant will not adhere and recommended by sealant manufacturer to suit application.

2.5 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. Color as selected by the COR. 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

Prepare joints in accordance with ASTM C 1193 and manufacturer's instructions. Clean joint surfaces of residual sealant, fillers, and other contaminates capable of affecting sealant bond to joint surface by wheel grinder, wire brush, and joint cleaner, pressure washer, or other methods recommended by the sealant manufacturer and approved by the COR. (Note: The cleaning of the joints shall in no way compromise the integrity of the existing waterstops, see Figure 7 within Appendix B for approximate location of existing waterstops) Prior to the installation of the expansive rope, the contractor shall ensure the joint surfaces are 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. Protect open joints from infiltration of debris until the new joint filler and sealant has been installed. Remove all existing sealant and debris until the joint sides are bare concrete. At station 5+008.425 remove steel plate to access expansion joint. Reinstall steel plate after installation of joint filler and sealants.

3.2 INSTALLATION OF EXPANSIVE ROPE

The Contractor shall complete the installation of expansive rope in accordance with the manufacturer’s instructions or as stated herein. The rope and urethane resin 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.

3.3 INSTALLATION OF JOINT SEALANT

Install joint sealants in accordance with ASTM C 1193, manufacturer's instructions, as shown on Figure 4 in Appendix A, or as stated herein. Maintain finished joints free of embedded matter, ridges and sags during the curing period.

3.4 MANUFACTURER’S FIELD SERVICES

The elastomeric sealant manufacturer’s representative shall be present at the project site to:

a. Observe sealant prototype installation and to issue reports of observations.

b. Perform hand pull tab tests and issue reports of observations as required by the scope of work.

3.5 FINAL INSPECTION

3.5.1 Core Samples

Drill a total of three (3) 4 inch diameter core samples, to a maximum depth of 5”. The core locations shall be along the centerline of an expansion joint and randomly chosen by the COR.

The cores shall be replaced with a non-shrink grout and surrounded by polyurethane grout with joint sealant on top.

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 or not 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.

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.

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.

SECTION 00 10 00 - SOLICITATION

The contractor period of performance begin date has decreased by 5 days from 15 days to 10 days.

The required performance has changed from The contractor shall supply all equipment, labor and materials necessary to perform contract, w hich includes but is not limited to: remove current joint sealant, clean and prepare joints, and properly install a polyurethane grout / expansive rope and a joint sealant in the construction joints and expansion joints on the spillw ay of the Homme Dam, Park River, North Dakota, in Walsh County.The North American Industrial Classification (NAICS) code assigned to this project is 237990, Other Heavy and Civil Engineering Construction, with an SBA Size Standard of $39,500,000.The estimated magnitude of construction for this project is between $1000,000 and $250,000.This solicitation is a Request for Quotes (RFQ) with Unrestricted (Full & Open) Competition. to The contractor shall supply all equipment, labor and materials necessary to perform contract, which includes but is not limited to: remove current joint sealant, clean and prepare joints, and properly install a polyurethane grout / expansive rope and a joint sealant in the construction joints and expansion joints on the spillway of the Homme Dam, Park River, North Dakota, in Walsh County.The North American Industrial Classification (NAICS) code assigned to this project is 237990, Other Heavy and Civil Engineering Construction, with an SBA Size Standard of $39,500,000.The estimated magnitude of construction for this project is between $1000,000 and $250,000.This solicitation is a Request for Quotes (RFQ) with Unrestricted (Full & Open) Competition..

The following Delivery Schedule item for CLIN 0002 has been changed from:

DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /

CAGE

01-OCT-2020 1,660 HOMME DAM

RICHARD SCHUENEMAN

2630 114TH AVE SE

VALLEY CITY ND 58072-9795

(701) 845-2970 X 21 FOB: Destination

W912ES

To:

DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /

CAGE

01-NOV-2020 1,660 HOMME DAM

RICHARD SCHUENEMAN

2630 114TH AVE SE

VALLEY CITY ND 58072-9795

(701) 845-2970 X 21

The following Delivery Schedule item for CLIN 0003 has been changed from:

CAGE

01-OCT-2020 1,660 HOMME DAM

RICHARD SCHUENEMAN

2630 114TH AVE SE

VALLEY CITY ND 58072-9795

(701) 845-2970 X 21

CAGE

01-NOV-2020 1,660 HOMME DAM

RICHARD SCHUENEMAN

2630 114TH AVE SE

VALLEY CITY ND 58072-9795

(701) 845-2970 X 21

The following Delivery Schedule item for CLIN 0004 has been changed from:

CAGE

01-OCT-2020 218 HOMME DAM

RICHARD SCHUENEMAN

2630 114TH AVE SE

VALLEY CITY ND 58072-9795

(701) 845-2970 X 21

CAGE

01-NOV-2020 218 HOMME DAM

RICHARD SCHUENEMAN

2630 114TH AVE SE

VALLEY CITY ND 58072-9795

(701) 845-2970 X 21

SECTION 00 70 00 - CONDITIONS OF THE CONTRACT

The following have been modified:

52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK (APR 1984) -

ALTERNATE I (APR 1984)

The Contractor shall be required to (a) commence work under this contract within 10 calendar days after the date the Contractor receives the notice to proceed, (b) prosecute the work diligently, and (c) complete the entire work ready for use not later than 1 November 2020. The time stated for completion shall include final cleanup of the premises.

The completion date is based on the assumption that the successful offeror will receive the notice to proceed by 28 August 2020. The completion date will be extended by the number of calendar days after the above date that the Contractor receives the notice to proceed, except to the extent that the delay in issuance of the notice to proceed results from the failure of the Contractor to execute the contract and give the required performance and payment bonds within the time specified in the offer.

(End of clause)

(End of Summary of Changes)