W912DW19B0005R0003_Snohomish_Dredging.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

The due date and time for receipt of bids is not changed. Bid opening is scheduled for 27 August 2019 at 11:00 AM Pacific Standard Time.

The purpose of this amendment is to accomplish the follow ing:

1. Replace section 35 20 23 of the associated specifications in its entirety.

2. Update the small business size standard for NAICS code 237990 to $30,000,000 in average annual receipts. Change is made in accordance w ith the Small Business Administration (SBA) updated North American Industry Classical System (NAICS) code Small Business Size Standards, effective 19 August 2019.

All other terms and conditions remain the same.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 8

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

16C. DATE SIGNED

BY 22-Aug-2019

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 W912DW19B0005

X 9B. DATED (SEE ITEM 11)

23-Jul-2019

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

22-Aug-2019

CODE

USA ENGINEER DISTRICT, SEATTLE

ATTN: CENWS-CT

4735 EAST MARGINAL WAY SOUTH, BLDG. 1202

SEATTLE WA 98134-2388

W912DW 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912DW19B0005

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 45 00 - REPRESENTATIONS AND CERTIFICATIONS

The following have been modified:

52.204-8 ANNUAL REPRESENTATIONS AND CERTIFICATIONS (OCT 2018)

(a)(1) The North American Industry Classification System (NAICS) code for this acquisition is 237990.

(2) The small business size standard is $30,000,000 in average annual receipts.

(3) The small business size standard for a concern which submits an offer in its own name, other than on a construction or service contract, but which proposes to furnish a product which it did not itself manufacture, is 500 employees.

(b)(1) If the provision at 52.204-7, System for Award Management, is included in this solicitation, paragraph (d) of this provision applies.

(2) If the provision at 52.204-7, System for Award Management, is not included in this solicitation, and the Offeror has an active registration in the System for Award Management (SAM), the Offeror may choose to use paragraph (d) of this provision instead of completing the corresponding individual representations and certifications in the solicitation. The Offeror shall indicate which option applies by checking one of the following boxes:

( ) Paragraph (d) applies.

( ) Paragraph (d) does not apply and the offeror has completed the individual representations and certifications in the solicitation.

(c) (1) The following representations or certifications in SAM are applicable to this solicitation as indicated:

(i) 52.203-2, Certificate of Independent Price Determination. This provision applies to solicitations when a firm-fixed-price contract or fixed-price contract with economic price adjustment is contemplated, unless—

(A) The acquisition is to be made under the simplified acquisition procedures in Part 13;

(B) The solicitation is a request for technical proposals under two-step sealed bidding procedures; or

(C) The solicitation is for utility services for which rates are set by law or regulation.

(ii) 52.203-11, Certification and Disclosure Regarding Payments to Influence Certain Federal Transactions. This provision applies to solicitations expected to exceed $150,000.

(iii) 52.203-18, Prohibition on Contracting with Entities that Require Certain Internal Confidentiality Agreements or Statements--Representation. This provision applies to all solicitations.

(iv) 52.204-3, Taxpayer Identification. This provision applies to solicitations that do not include the provision at 52.204-7, System for Award Management.

(v) 52.204-5, Women-Owned Business (Other Than Small Business). This provision applies to solicitations that—

(A) Are not set aside for small business concerns;

(B) Exceed the simplified acquisition threshold; and

(C) Are for contracts that will be performed in the United States or its outlying areas.

(vi) 52.209-2; Prohibition on Contracting with Inverted Domestic Corporations--Representation.

(vii) 52.209-5; Certification Regarding Responsibility Matters. This provision applies to solicitations where the contract value is expected to exceed the simplified acquisition threshold.

(viii) 52.209-11, Representation by Corporations Regarding Delinquent Tax Liability or a Felony Conviction under any Federal Law. This provision applies to all solicitations.

(ix) 52.214-14, Place of Performance--Sealed Bidding. This provision applies to invitations for bids except those in which the place of performance is specified by the Government.

(x) 52.215-6, Place of Performance. This provision applies to solicitations unless the place of performance is specified by the Government.

(xi) 52.219-1, Small Business Program Representations (Basic & Alternate I). This provision applies to solicitations when the contract will be performed in the United States or its outlying areas.

(A) The basic provision applies when the solicitations are issued by other than DoD, NASA, and the Coast Guard.

(B) The provision with its Alternate I applies to solicitations issued by DoD, NASA, or the Coast Guard.

(xii) 52.219-2, Equal Low Bids. This provision applies to solicitations when contracting by sealed bidding and the contract will be performed in the United States or its outlying areas.

(xiii) 52.222-22, Previous Contracts and Compliance Reports. This provision applies to solicitations that include the clause at 52.222-26, Equal Opportunity.

(xiv) 52.222-25, Affirmative Action Compliance. This provision applies to solicitations, other than those for construction, when the solicitation includes the clause at 52.222-26, Equal Opportunity.

(xv) 52.222-38, Compliance with Veterans' Employment Reporting Requirements. This provision applies to solicitations when it is anticipated the contract award will exceed the simplified acquisition threshold and the contract is not for acquisition of commercial items.

(xvi) 52.223-1, Biobased Product Certification. This provision applies to solicitations that require the delivery or specify the use of USDA-designated items; or include the clause at 52.223-2, Affirmative Procurement of Biobased Products Under Service and Construction Contracts.

(xvii) 52.223-4, Recovered Material Certification. This provision applies to solicitations that are for, or specify the use of, EPA- designated items.

(xviii) 52.223-22, Public Disclosure of Greenhouse Gas Emissions and Reduction Goals--Representation. This provision applies to solicitations that include the clause at 52.204-7.)

(xix) 52.225-2, Buy American Certificate. This provision applies to solicitations containing the clause at 52.225-1.

(xx) 52.225-4, Buy American--Free Trade Agreements--Israeli Trade Act Certificate. (Basic, Alternates I, II, and III.) This provision applies to solicitations containing the clause at 52.225- 3.

(A) If the acquisition value is less than $25,000, the basic provision applies.

(B) If the acquisition value is $25,000 or more but is less than $50,000, the provision with its Alternate I applies.

(C) If the acquisition value is $50,000 or more but is less than $80,317, the provision with its Alternate II applies.

(D) If the acquisition value is $80,317 or more but is less than $100,000, the provision with its Alternate III applies.

(xxi) 52.225-6, Trade Agreements Certificate. This provision applies to solicitations containing the clause at 52.225- 5.

(xxii) 52.225-20, Prohibition on Conducting Restricted Business Operations in Sudan--Certification. This provision applies to all solicitations.

(xxiii) 52.225-25, Prohibition on Contracting with Entities Engaging in Certain Activities or Transactions Relating to Iran—Representation and Certification. This provision applies to all solicitations.

(xxiv) 52.226-2, Historically Black College or University and Minority Institution Representation. This provision applies to solicitations for research, studies, supplies, or services of the type normally acquired from higher educational institutions.

(2) The following representations or certifications are applicable as indicated by the Contracting Officer:

[Contracting Officer check as appropriate.]

(i) 52.204-17, Ownership or Control of Offeror.

(ii) 52.204-20, Predecessor of Offeror.

(iii) 52.222-18, Certification Regarding Knowledge of Child Labor for Listed End Products.

(iv) 52.222-48, Exemption from Application of the Service Contract Labor Standards to Contracts for Maintenance, Calibration, or Repair of Certain Equipment--Certification.

(v) 52.222-52 Exemption from Application of the Service Contract Labor Standards to Contracts for Certain Services--Certification.

(vi) 52.223-9, with its Alternate I, Estimate of Percentage of Recovered Material Content for EPA- Designated Products (Alternate I only).

(vii) 52.227-6, Royalty Information.

(A) Basic.

(B) Alternate I.

(viii) 52.227-15, Representation of Limited Rights Data and Restricted Computer Software.

(d) The Offeror has completed the annual representations and certifications electronically in SAM accessed through https://www.sam.gov. After reviewing the SAM information, the Offeror verifies by submission of the offer that the representations and certifications currently posted electronically that apply to this solicitation as indicated in paragraph (c) of this provision have been entered or updated within the last 12 months, are current, accurate, complete, and applicable to this solicitation (including the business size standard applicable to the NAICS code referenced for this solicitation), as of the date of this offer and are incorporated in this offer by reference (see FAR 4.1201); except for the changes identified below [ offeror to insert changes, identifying change by clause number, title, date]. These amended representation(s) and/or certification(s) are also incorporated in this offer and are current, accurate, and complete as of the date of this offer.

FAR Clause Title Date Change

Any changes provided by the offeror are applicable to this solicitation only, and do not result in an update to the representations and certifications posted on SAM.

(End of provision)

252.204-7007 Alternate A, Annual Representations and Certifications (MAY 2010)

(a)

(1) The North American Industry classification System (NAICS) code for this acquisition is _237990_ .

(2) The small business size standard is $30,000,000.

(3) The small business size standard for a concern which submits an offer in its own name, other than on a construction or service contract, but which proposes to furnish a product which it did not itself manufacture, is 500 employees.

(b)

(1) If the clause at 52.204-7, Central Contractor Registration, is included in this solicitation, paragraph (d) of this provision applies.

(2) If the clause at 52.204-7 is not included in this solicitation, and the offeror is currently registered in CCR, and has completed the ORCA electronically, the offeror may choose to use paragraph (d) of this provision instead of completing the corresponding individual representations and certification in the solicitation. The offeror shall indicate which option applies by checking one of the following boxes:

[_] (i) Paragraph (d) applies.

[_] (ii) Paragraph (d) does not apply and the offeror has completed the individual representations and certifications in the solicitation.

(c)

(1) The following representations or certifications in ORCA are applicable to this solicitation as indicated:

(i) 52.203-2, Certificate of Independent Price Determination. This provision applies to solicitations when a firm-fixed-price contract or fixed-price contract with economic price adjustment is contemplated, unless—

(A) The acquisition is to be made under the simplified acquisition procedures in Part 13;

(B) The solicitation is a request for technical proposals under two-step sealed bidding procedures; or

(C) The solicitation is for utility services for which rates are set by law or regulation.

(ii) 52.203-11, Certification and Disclosure Regarding Payments to Influence Certain Federal Transactions.

This provision applies to solicitations expected to exceed $150,000.

(iii) 52.204-3, Taxpayer Identification. This provision applies to solicitations that do not include the clause at 52.204-7, Central Contractor Registration.

(iv) 52.204-5, Women-Owned Business (Other Than Small Business). This provision applies to solicitations that—

(A) Are not set aside for small business concerns;

(B) Exceed the simplified acquisition threshold; and

(C) Are for contracts that will be performed in the United States or its outlying areas.

(v) 52.209-5, Certification Regarding Responsibility Matters. This provision applies to solicitations where the contract value is expected to exceed the simplified acquisition threshold.

(vi) 52.214-14, Place of Performance--Sealed Bidding. This provision applies to invitations for bids except those in which the place of performance is specified by the Government.

(vii) 52.215-6, Place of Performance. This provision applies to solicitations unless the place of performance is specified by the Government.

(viii) 52.219-1, Small Business Program Representations (Basic & Alternate I). This provision applies to solicitations when the contract will be performed in the United States or its outlying areas.

(A) The basic provision applies when the solicitations are issued by other than DoD, NASA, and the Coast Guard.

(B) The provision with its Alternate I applies to solicitations issued by DoD, NASA, or the Coast Guard.

(ix) 52.219-2, Equal Low Bids. This provision applies to solicitations when contracting by sealed bidding and the contract will be performed in the United States or its outlying areas.

(x) 52.222-22, Previous Contracts and Compliance Reports. This provision applies to solicitations that include the clause at 52.222-26, Equal Opportunity.

(xi) 52.222-25, Affirmative Action Compliance. This provision applies to solicitations, other than those for construction, when the solicitation includes the clause at 52.222-26, Equal Opportunity.

(xii) 52.222-38, Compliance with Veterans' Employment Reporting Requirements. This provision applies to solicitations when it is anticipated the contract award will exceed the simplified acquisition threshold and the contract is not for acquisition of commercial items.

(xiii) 52.223-1, Biobased Product Certification. This provision applies to solicitations that require the delivery or specify the use of USDA-designated items; or include the clause at 52.223-2, Affirmative Procurement of Biobased Products Under Service and Construction Contracts.

(xiv) 52.223-4, Recovered Material Certification. This provision applies to solicitations that are for, or specify the use of, EPA- designated items.

(xv) 52.225-2, Buy American Act Certificate. This provision applies to solicitations containing the clause at 52.225-1.

(xvi) 52.225-4, Buy American Act--Free Trade Agreements--Israeli Trade Act Certificate. (Basic, Alternate I, and Alternate II) This provision applies to solicitations containing the clause at 52.225- 3.

(A) If the acquisition value is less than $25,000, the basic provision applies.

(B) If the acquisition value is $25,000 or more but is less than $50,000, the provision with its Alternate I applies.

(C) If the acquisition value is $50,000 or more but is less than $67,826, the provision with its Alternate II applies.

(xvii) 52.225-6, Trade Agreements Certificate. This provision applies to solicitations containing the clause at 52.225-5.

(xviii) 52.225-20, Prohibition on Conducting Restricted Business Operations in Sudan--Certification. This provision applies to all solicitations.

(xix) 52.225-25, Prohibition on Engaging in Sanctioned Activities Relating to Iran—Certification. This provision applies to all solicitations.

(xx) 52.226-2, Historically Black College or University and Minority Institution Representation. This provision applies to—

(A) Solicitations for research, studies, supplies, or services of the type normally acquired from higher educational institutions; and

(B) For DoD, NASA, and Coast Guard acquisitions, solicitations that contain the clause at 52.219-23, Notice of Price Evaluation Adjustment for Small Disadvantaged Business Concerns.

(2) The following certifications are applicable as indicated by the Contracting Officer:

[Contracting Officer check as appropriate.]

___ (i) 52.219-22, Small Disadvantaged Business Status.

___ (A) Basic.

___ (B) Alternate I.

___ (ii) 52.222-18, Certification Regarding Knowledge of Child Labor for Listed End Products.

___ (iii) 52.222-48, Exemption from Application of the Service Contract Act to Contracts for Maintenance, Calibration, or Repair of Certain Equipment Certification.

___ (iv) 52.222-52 Exemption from Application of the Service Contract Act to Contracts for Certain Services--Certification.

___ (v) 52.223-9, with its Alternate I, Estimate of Percentage of Recovered Material Content for EPA- Designated Products (Alternate I only).

___ (vi) 52.223-13, Certification of Toxic Chemical Release Reporting.

___ (vii) 52.227-6, Royalty Information.

___ (A) Basic.

___ (B) Alternate I.

___ (viii) 52.227-15, Representation of Limited Rights Data and Restricted Computer Software.

(d) The offeror has completed the annual representations and certifications electronically via the Online Representations and Certifications Application (ORCA) website at https://orca.bpn.gov/. After reviewing the ORCA database information, the offeror verifies by submission of the offer that the representations and certifications currently posted electronically have been entered or updated within the last 12 months, are current, accurate, complete, and applicable to this solicitation (including the business size standard applicable to the NAICS code referenced for this solicitation), as of the date of this offer, and are incorporated in this offer by reference (see FAR 4.1201); except for the changes identified below [offeror to insert changes, identifying change by clause number, title, date]. These amended representation(s) and/or certification(s) are also incorporated in this offer and are current, accurate, and complete as of the date of this offer.

FAR/DFARS Clause # Title Date Change

Any changes provided by the offeror are applicable to this solicitation only, and do not result in an update to the representations and certifications posted on ORCA.

(End of Provision)

(End of Summary of Changes)

FY19 Snohomish River Hydraulic Dredging Everett, Washington

19015

W912DW19B0005 35 20 23-1 R0003

PART 1 GENERAL

1.1 INFORMATION

SECTION 35 20 23

DREDGING

a) Dredging shall be accomplished by a 12-inch or larger diameter (measured at the discharge pipe), hydraulic pipeline “mechanical” cutterhead suction dredge. “Mechanical” refers to the method of agitation or breaking up of consolidated bottom sediment. Water jets or augers, (such as but not necessarily limited to horizontal cutterheads) are not acceptable alternatives. The dredge must have the ability to pump efficiently material as described in Paragraph, CHARACTERISTICS OF MATERIAL. All material shall be disposed of as specified herein and as shown on the drawings.

All shoals shall be removed despite any changes that may have occurred in their volume, dimensions, or locations between bathymetric surveys.

b) It is the Bidder’s responsibility to be thoroughly familiar with the weather and river conditions for both project locations. It is the Bidder’s responsibility to understand the tides and currents in the work area. See FAR 52.236-4 PHYSICAL DATA for additional information.

c) In the event the required dredging depth cannot be reached, the Contractor shall be required to dig to refusal.

d) Material excavated shall be transported to and deposited in the designated Placement Area.

e) Damaged navigation aids, lights and markers caused by Contractor’s actions shall be reported to the U.S. Coast Guard and the COR immediately. Contractor is responsible for all costs to repair damaged navigation aids, lights, and markers.

1.2 WORK PLAN

a) Contractor shall submit a Work Plan within fourteen (14) calendar days of Notice to Proceed

(NTP).

b) The Contractor’s Work Plan shall include a description of mobilization/demobilization, shall document and describe the proposed equipment, means, and methods of accomplishing the dredging, handling, and disposal of sediment and debris. The Work Plan shall describe the proposed survey controls (horizontal and vertical i.e. depth) that will be utilized to demonstrate that dredging is being completed in accordance with the design dredging prism. Additional plans related to the work includes a Dredge Plan and Disposal Plan shall be included as separate section in the Work Plan. The Work Plan shall describe the Contractor's equipment, means and methods for dredging, pipeline routing and disposal.

1.3 GOVERNMENT RECORDS

a) Records of previous dredging, previous pre-dredge bathymetric surveys, post-dredge bathymetric surveys, detailed current condition bathymetric surveys, coordinates and descriptions of survey monuments, sediment gradation curves, and exploration logs (if any of the previous exist) are available for inspection in Operations Division, Seattle District, U.S. Army Corps of Engineers, 4735 East Marginal Way South, Seattle, Washington. Point of Contact is John Pell, phone (206) 764-3413. Government does not warrant accuracy of records of previous dredging.

1.4 CHARACTERISTICS OF MATERIAL

a) Based on the results of sediment sampling conducted on September 13, 2017 and discussed in the final data report, the material to be removed in the Upper Settling Basin (Station 335+50 to Station 355+78.54) is primarily composed of medium and coarse sand, with a smaller fraction (<7%) of fine, and very coarse sand and incidental

W912DW19B0005 35 20 23-2 R0003

(<1%) silt, clay, very fine sand and gravel, which has shoaled into the basin and channel.

Material in the Lower Shallow Draft Channel is primarily composed of medium and coarse sand with a smaller fraction (<8%) of very coarse and fine sand and incidental (<2%) silts, clays, fine sands and gravel, which has shoaled into the channel. Material in the Lower Channel (Station 90+00 to 115+00) is primarily composed of fine sand, very fine sand and silt with a smaller fraction (<8%) of clays and (<3%) medium sand with incidental (<1%) gravel, very coarse sand and coarse sand. Contractor is likely to encounter accumulations of forest trash, sunken logs, stumps, human-made wood products, wire, and synthetic rope, metal debris, fishing nets, tires and other miscellaneous debris that periodically may cause production delays. Bidders are expected to examine the site of work and decide for themselves as to the character of materials.

b) Classification and description of the materials to be dredged is classified according to Section 35 20 23-A: U.S. Geologic Survey (USGS) Wentworth Grade Scale.

1.5 ARTIFICIAL OBSTRUCTIONS

a) Except as indicated, the Government has no knowledge of cables, pipes, or other artificial obstructions or of any wrecks, wreckage, or other material that would necessitate the use of explosives or the employment of additional equipment for economical removal. If actual conditions differ from those stated or shown, or both, an adjustment in contract price or time for completion, or both, will be made in accordance with FAR 52.236-2, Differing Site Conditions.

b) Dredging adjacent to any structures or marine vessels shall require additional care to not cause damage to private or public property. Damage to private or public property or structures resulting from the disposal or dredging operations shall be repaired promptly by and at the Contractor's expense. Damage to structures as a result of Contractor's negligence shall result in suspension of dredging and require prompt repair at the Contractor's expense as a prerequisite to the resumption

1.6 STAGING AREAS

a) Contractor shall coordinate utilization of staging areas with the Port of Everett. After the Contractor completes his operations, the staging area shall be restored to a condition equal to that existing before Contractor’s operations. Government will not be responsible for Contractor’s equipment and materials in the staging area and Contractor shall provide his own security.

1.7 LIGHTS, LIGHTED BUOYS AND DREDGING AIDS MARKERS

a) All lights, lighted buoys and dredging aids markers must be maintained, operable and on station at all times to insure a safe harbor. The placement, markings and lighting shall meet all US Coast Guard Regulations, EM 385-1-1 and the Special Requirements found in this specification.

b) All marker buoys shall be painted yellow and display the same yellow flashing light as required for floating or supported dredge pipelines meeting the requirements of this subsection.

1) Buoys used to anchor booster pumps.

2) Buoys used to anchor or mark stored equipment i.e. (barges, pipeline etc.).

3) Buoys used to mark or anchor dredge pipelines and this includes floating and submerged pipeline leading to placement areas.

4) Any other buoys the U.S. Coast Guard or Contracting Officer requires to insure a safe harbor free from hazards to navigation must be marked and display yellow flashing lights meeting the requirements stated in this subsection.

1.8 SUBMERGED PIPELINE

W912DW19B0005 35 20 23-3 R0003

a) The Contractor may elect to submerge sections of the dredge discharge pipeline for crossing a navigable channel.

b) The Contractor shall submit, as part of the Dredge Plan for approval, detailed plans of the submerged pipeline section.

c) Submerged pipeline shall be marked in accordance with local USCG requirements and approved by the Government Designated Authority (GDA).

1) Unless otherwise specified by the USCG, submerged pipelines are considered to require special marks and shall have a USCG approved flashing yellow light.

2) Indicators, such as signs or buoys that state “DANGER SUBMERGED PIPELINE” shall be placed at the beginning and end of the pipeline.

3) If barges or other vessels are used to anchor the beginning and/or end of the submerged pipeline, they shall be lighted in accordance with 33 CFR 83.30.

4) Within a navigation channel, each end of the pipeline shall be identified with a regulatory marker buoy.

5) Lengths of submerged pipeline located outside of the navigation channel, shall be identified with high visibility buoys marked with 360-degree visibility retro-reflective tape, such as orange neoprene buoys, spaced at an interval not to exceed one hundred (100) feet apart.

1.9 FLOATING PIPELINE

a) If the Contractor's pipeline does not rest on the bottom, it shall be considered a floating pipeline and shall be visible on the surface and clearly marked. The Contractor's pipeline shall not be allowed to fluctuate between the surface and, or lie partly submerged. Lights shall be installed on the floating pipeline as required in the Paragraph: LIGHTS, LIGHTED BUOYS AND DREDGING AIDS MARKERS. The lights shall be supported either by buoys or by temporary piling, provided by the Contractor and approved by the Contracting Officer Representative (COR). Where the pipeline does not cross a navigable channel, the flashing yellow all-around lights shall be spaced not over 100 feet apart, unless closer spacing is required by U.S. Coast Guard personnel, in which case the requirements of the U.S. Coast Guard shall govern, at no additional cost to the Government.

1.10 PIPELINE LEAKS

a) If a leak occurs in the discharge pipeline, the Contractor shall immediately discontinue using the line until leaks are repaired. The Contractor shall be responsible for removing material placed due to leaks or breaks.

1.11 MINIMUM PAY DEPTH AND MAXIMUM PAY DEPTH

a) To cover inaccuracies of the dredging operation within the area to be dredged, a Minimum Pay Depth and a Maximum Pay Depth has been established. The volume to be dredged above the Minimum Pay Depth (including associated side slopes) is referred to as the required dredging prism. The volume between the Minimum and Maximum Pay Depth (including associated side slopes) constitutes the Allowable Overdepth.

b) Allowable overdepth (Maximum Pay Depth) is up to two (2) feet below the required dredging depth and within the dredging limits.

1.12 SIDE SLOPES AND END TRANSITIONS

a) Dredging side slopes shall follow as closely as practicable, the lines indicated or specified.

Allowance will be made for dredging beyond the lines indicated or specified for side slopes. The

W912DW19B0005 35 20 23-4 R0003

allowance will be determined by projecting a line upwards, paralleling the project design side slopes, from the intersection of the overdepth-dredging limit (at a point located vertically below the limit of dredging at the top of slope). The amount of material excavated from side slopes will be determined by bathymetric survey.

b) The side slopes transition between the channel and the upper settling basin. Facing downstream, starting at Sta. 355+78.54 the side slopes transition from 1:2 to 1:6 at the upstream end of the settling basin at Station 354+46.83 on the right side of the channel, and from 1:2 to 1:3 on the left side of the channel. Starting at Station 337+06.83, the side slopes of the settling basin uniformly transition back to 1:2 at Station 335+50. The Contractor shall uniformly transition side slopes wherever there is a change in channel side slopes.

c) Dredge uniform end-cut transitions from existing conditions at Station 335+50 to the downstream end of the upper settling basin at Station 337+06.83, and from the dredged depth at the upstream end of the upper settling basin at Station 354+46.83 to the dredged channel depth at Station 355+78.54. End-cut transition slops shall not be steeper than 1:6.

d) The lower channel dredging (Sta. 90+00 to 115+00) dredge area is formed by the maximum pay depth, with side slopes no steeper 1:2 on all sides. Dredge area coordinates are shown on the drawings.

1.13 EXCESSIVE DREDGING

a) Soundings or sweepings will be taken behind the dredge to determine if material has been removed outside the contract limits.

b) Material taken from beyond limits as defined in paragraphs Minimum Pay Depth and Maximum Pay Depth and Side Slopes, above, will be deducted from the total amount dredged as excessive dredging for which payment will not be made. Nothing herein shall be construed to prevent payment for removal of shoals performed in accordance with applicable provisions of paragraphs “FINAL EXAMINATION AND ACCEPTANCE” or “SHOALING” of Section 01 00 02, SUPPLEMENTARY REQUIREMENTS FOR DREDGING.

c) The Contractor shall specifically notify the COR, in writing, once the Contractor reaches 75 percent of the quantities specified in the Contract Line Items. This notification will be separate and in addition to other reporting required elsewhere in this Contract.

d) It is the Contractor’s responsibility to notify the Government as soon as the estimated quantities are identified to be insufficient to complete the work indicated and specified.

e) This provision shall not be interpreted as an order for the Contractor to stop work upon reaching 75 percent of the estimated quantities; it merely requires notice and potential corrective action at that point. However, absent further specific direction, the Contractor shall be prepared to stop work on any CLIN at no additional cost to the Government once 100 percent of the line item quantity has been obtained.

1.14 DREDGING RESTRICTIONS

a) The Contractor shall only perform in-water work from midnight (0001 hours) 16 October 2019 through midnight (2359 hours) 14 February 2020. Compliance with the in-water work timeframe of this contract shall satisfy the requirements of Water Quality Certification #15949 (Attachment 01 57 20.00 10-A) and associated Water Quality Monitoring Plan dated 15 May 2019.

b) No in-water work is authorized during the fish closure period. The in-water fish closure period is from midnight (0001) 15 February through midnight (2359) 15 October.

c) Where pre-dredge bathymetric surveys show conditions at or below the required dredging prism, no dredging shall be performed unless approved by the Contracting Officer.

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d) The time stated for completion shall include final cleanup of the premises.

1.15 DREDGING SEQUENCE OF WORK

a) If both work areas are awarded, there is no prescribed order of dredging. The Contractor may begin dredging at any location first. However, completing the dredging from Sta. 335+50 to 355+78.54 with disposal at Parcel “O” as early as possible is recommended due to the possibility of fall and winter flooding.

b) Contractors shall annotate the sequence of work in their Work Plan. Variations in the dredging and disposal sequence may be considered. The Contractor must submit a revised Work Plan and receive COR approval before deviating from a previously approved sequence of work. If inclement weather threatens to impact or delay dredging operations, the Contractor is advised that relocating his equipment to a more protective location is permissible.

1.16 REPORTING REQUIREMENTS

a) Reference Section 01 45 00.15 10 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM). Contractor shall prepare and maintain a daily report of operations and furnish one copy thereof to COR daily. Further instructions on preparation of report will be furnished at the preconstruction conference. Contractor shall record times, durations, and reasons of all shutdowns during the dredging period.

1.17 ENVIRONMENTAL PROTECTION REQUIREMENTS

a) Provide and maintain during the life of the contract, environmental protective measures according to Section 01 57 20.00 10 ENVIRONMENTAL PROTECTION. Also, provide environmental protective measures required to correct conditions, such as oil spills or debris, which occur during the dredging operations. Comply with applicable Federal, State, and local regulations pertaining to water, air, and noise pollution.

b) All debris collected during the dredging operations destined for disposal shall be disposed of at a facility authorized to receive the material.

PART 2 PRODUCTS

NOT USED.

PART 3 EXECUTION

3.1 INSPECTION

a) Contractor shall inspect the work, keep records of work performed, and ensure that gages, and other markers are in place and usable for the intended purpose. Contractor shall record times, durations and reasons of all shutdowns during the dredging day. See Section 01 45 00.00 10 QUALITY CONTROL and Section 01 45 00.15 10 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM) for reporting requirements.

b) Contractor shall furnish, at the request of the COR, boats, boatmen, laborers, and materials necessary for inspecting the dredging activities. When required, provide transportation for the COR and other Government inspectors to and from the disposal area and between the dredging plant and adjacent points on shore.

3.2 CONDUCT OF DREDGING WORK:

a) Interference with Navigation:

1) The Contractor shall minimize interference with the use of channels and passages. The Contractor shall coordinate and adjust dredges or the interruption of dredging operations to accommodate the movement of vessels and floating equipment, if necessary.

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b) Lights:

1) When night work is in progress, maintain lights from sunset to sunrise for the observation and marking of dredging operations. Between sunset and sunrise and during periods of restricted visibility, provide lights for floating plants, ranges, and markers. Also, provide lights for buoys that could endanger or obstruct navigation. Lighting shall conform to United States Coast Guard requirements for visibility and color. See Section 35 20 23 “LIGHTS, LIGHTED BUOYS AND DREDGING AIDS MARKERS” for additional information.

c) Layout of Work:

1) Prior to beginning dredging, the COR will establish a tidal reference point on one navigation aid or other suitable structure. Contractor shall use the reference points for his elevation control. Centerline range alignment may vary from the channel alignment. Contractor’s use of ranges for positioning will be at his own risk; see CONTRACT CLAUSES, FAR 52.236-

17 LAYOUT OF WORK.

d) Hydraulic Dredging:

1) The material removed from the various dredging pay areas and dredging reaches shall be placed within the Government furnished material placement sites as shown or otherwise described on the contract drawings.

2) Pipelines shall not be permitted to fluctuate between the water surface and the channel bottom or lie partially submerged in accordance with EM 385-1-1 Safety and Health Requirements Manual.

3) The disposal area boundaries shown on the contract drawings represent the overall boundaries that the Contractor may conduct disposal operations. The disposal boundaries shall be staked in the field by the Contracting Officer or his/her representative. The Contractor shall ensure material is not placed outside of the staked disposal areas”.

4) Disposal must be accomplished through pipeline operations. Pipeline shall be placed in a manner that does not obstruct the flow of traffic.

5) Pipeline dredge plant must perform all dredging work under this contract. The Contractor shall furnish all support equipment needed to complete successfully the job. This equipment includes tending vessels, anchors, deck machinery, winches, pumps, and any other equipment needed to meet the contract requirements.

6) Hydraulic dredging shall be conducted in a manner that shall result in minimum turbidity and suspended sediment. In addition, dredges shall be furnished at all times with an operating and easily readable dredging depth indicator. Dredging shall be performed in such manner that shall not exceed water quality requirements as stated in the applicable Department of Ecology Water Quality Certification #15949 dated August 7, 2018.

e) Pipeline Safety:

1) If a leak occurs in the discharge pipeline, immediately discontinue using the line until leaks are repaired. Remove material placed due to leaks or breaks.

2) Furnish and maintain navigation warning signs and warning lights along the pipeline (as applicable).

f) Salvaged Material:

1) Anchors, chains, firearms, and other articles of value, which are brought to the surface during dredging operations, shall remain or becomes the property of the Contractor and shall be deposited on shore at a convenient location near the site of the work, as directed. All material

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deposited shall be removed from the work area as part of the post construction clean up. No additional payment shall be made for disposal of these items.

g) Safety of Structures:

1) The prosecution of work shall ensure the stability of piers, bulkheads, and other structures lying on or adjacent to the site of the work, insofar as structures may be jeopardized by dredging operations. The Contractor shall maintain a minimum standoff distance of twenty five (25) feet from all piling structures and timber walls unless otherwise authorized by the Contracting Officer or her representative. Repair damage resulting from dredging operations, insofar as such damage may be caused by variation in locations or depth of dredging, or both, from that indicated or permitted under the contract.

h) Plant Removal:

1) Upon completion of the work, promptly remove plant, including ranges, buoys, piles, and other markers or obstructions.

i) Protection of Existing Waterways:

1) Conduct dredging operations using a method that shall ensure that material or other debris are not pushed outside of the dredging limits or otherwise deposited in existing side channels, basins, docking areas, or other areas being used by vessels. The Contractor shall be required to change its method of operations as may be required to comply with the above requirements. If bottom material or other debris is pushed into areas noted above, as a result of the Contractor's operations, the same shall be promptly removed by and at the expense of the Contractor to the satisfaction of the contracting officer.

j) Adjacent Property and Structures:

1) Dredging adjacent to a structure will not be permitted closer than that shown. Damage to private or public property or structures resulting from the disposal or dredging operations shall be repaired promptly by and at the Contractor's expense. Damage to structures as a result of Contractor's negligence will result in suspension of dredging and require prompt repair at the Contractor's expense as a prerequisite to the resumption of dredging. Details for dredging adjacent to structures are shown.

3.3 DISPOSAL OF DREDGE MATERIAL

Deposit dredged material by the hydraulic process:

1) The material removed from the various dredging pay areas and dredging reaches shall be placed within the Government furnished material placement sites as shown or otherwise described on the contract drawings.

2) The deposit of dredged materials in unauthorized places is forbidden. Pre-bid site visits are recommended and should be coordinated through the Contracting Officer.

a) Disposal Plan - Prior to commencement of dredging, the Contractor shall submit, as a separate section to their Work Plan, a Disposal Plan for approval by the Contracting Officer. The Disposal Plan shall include temporary pipeline access and routing and outfall location as required for operation of Contractor’s plant and equipment. The Contractors Disposal Plan shall include designation of disposal site superintendent at the disposal area responsible for disposal operations. Disposal activities shall be controlled to prevent damage to adjacent property. At a minimum, the Contractor shall be required to submit a Disposal Plan that includes the following:

1) Site design (disposal plan and pipe layout)

2) Staging areas

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3) Equipment list.

“JETTY ISLAND”:

1) Material dredged from Sta. 90+00 to 115+00 shall be deposited the west side of Jetty Island in a location as directed and as staked in the field by the Contracting Officer or his/her authorized representative. Pipeline dredged material shall be placed to specified elevations and sloped to allow proper drainage. No material shall be placed outside the limits of the placement area. Any logs or stumps on the beach shall be stockpiled and placed on the beach above elevation +15.0 (MLLW) after completing the beach nourishment.

“PARCEL O”

1) The Contractor shall be responsible for inspecting and determining the condition of existing dikes Parcel “O” disposal area Pre-bid site visits are recommended and should be coordinated through the Contracting Officer. The Contractor shall provide temporary dikes as necessary to contain disposed dredge material. Temporary diking or temporary stacking of material by the Contractor in conjunction with the disposal operations shall be required to achieve desired disposal volume and retention. The existing dredge material placed at this site during previous dredge events has been extensively re-handled by the City of Everett. Large quantities of the existing dredge material may continue to be removed by local entities from the site. The Contractor shall prepare and rework the placement site as required to re-slope the material in order to ensure suitable drainage of dredge effluent water.

If any dike section is missing, undersized, or otherwise requires reworking or repairs in order to retain the dredge discharge material, including discharge water, the Contractor is responsible for repairing or replacing the dike sections at the Contractor’s expense.

2) The dredge material from Sta. 335+50 to 355+78.54 shall be placed in confinement dikes for the Parcel “O” disposal area. The Contractor shall be required to restore any existing breaches in the confinement dikes, such as those created for equipment access, or by other occasion, with on-site material if available, or obtain off-site material if necessary

3) Runoff shall be directed to the Snohomish River. Overflow shall be moderated using a suitably sized control structure (weir) that controls the rate and direction of flow, such that sediment is allowed to settle in the basin before overflowing into the river. The Contractor shall provide and maintain necessary bulkheads, dikes, ditches, weirs, spillways, and other construction necessary to confine and retain the fill in the dredge fill area. The Contractor shall install and maintain a weir structure capable of maintaining at least one (1) foot of standing water within the settlement basin. The Contractor shall regularly monitor all outfall structures associated as part of the disposal activities. Prior to commencement of dredging, the Contractor shall submit, as a section to their Work Plan, a Disposal Plan for approval by the Contracting Officer. The Disposal Plan shall include temporary pipeline access and routing and outfall location as required for operation of Contractor’s plant and equipment.

The Government will stake out the toe limits of the disposal sites.

4) The City of Everett advises that there are other users on their property therefore safe practices and coordination is required.

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