AMD-0002_W912HY20B0002.pdf

W45VAK92897584 475465

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 for this amendment is to to amend the specif ications and draw ings as stated in the Summary of Changes, All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY 13-Feb-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 W912HY20B0002

X 9B. DATED (SEE ITEM 11)

23-Jan-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 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

13-Feb-2020

CODE

CONTRACTING DIVISION

2000 FT. POINT RD.

GALVESTON TX 77550

W912HY 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912HY20B0002

Page 2 of XX

A0001-2

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

1. The specifications for Solicitation No. W912HY19B0000, HOUSTON SHIP CHANNEL CEDAR

BAYOU PA 6 CONTAINMENT DIKE RAISE IN CHAMBERS COUNTY, TEXAS, are hereby amended as follows:

a) Specifications.

(1) SECTION 00 11 00.00 45, BID SCHEDULE – The enclosed SECTION 00 11 00.00 45 entitled BID SCHEDULE supersedes that issued with this Solicitation.

(2) SECTION 01 22 00.10, MEASUREMENT AND PAYMENT – The enclosed SECTION 01 22 00.10 entitled MEASUREMENT AND PAYMENT supersedes that issued with this Solicitation.

(3) SECTION 31 23 19.00 45, DEWATERING – The enclosed SECTION 31 23 19.00 45 entitled DEWATERING supersedes that issued with this Solicitation.

(4) SECTION 35 41 00.01 45, EMBANKMENT CONSTRUCTION – The enclosed SECTION 35 41 00.01 45 entitled EMBANKMENT CONSTRUCTION supersedes that issued with this Solicitation.

b) Drawings.

(1) DRAWINGS NO. G-003, B-101, C-101, C-102, C-103, AND C-501 - The enclosed Drawings G-003, B-101, C-101, C-102, C-103, AND C-501, supersedes that issued with this Solicitation.

2. This amendment shall be attached to and become a part of the solicitation.

10 Encls:

1. SECTION 00 11 00.00 45, BID SCHEDULE

2. SECTION 01 22 00.10, MEASUREMENT AND PAYMENT

3. SECTION 31 23 19.00 45, DEWATERING

4. SECTION 35 41 00.01 45, EMBANKMENT CONSTRUCTION

5. DRAWING NO. G-003

6. DRAWING NO. B-101

7. DRAWING NO. C-101

8. DRAWING NO. C-102

9. DRAWING NO. C-103

10. DRAWING NO. C-501

SWG file No.: HSC 403-76 Solicitation No.: W912HY20B0002

SECTION TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

DOCUMENT 00 11 00.00 45

BID SCHEDULE AMENDMENT NO. : 0002

PART 1 GENERAL

1.1 BID SCHEDULE

1.1.1 Schedule No. 1

1.1.1.1 Option 1

-- End of Section Table of Contents --

DOCUMENT 00 11 00.00 45 Page 1

AMENDMENT NO.: 0002 TO ACCOMPANY SOLICITATION W912HY20B0002

THIS PAGE INTENTIONALLY LEFT BLANK

DOCUMENT 00 11 00.00 45 Page 2

DOCUMENT 00 11 00.00 45

BID SCHEDULE

AMENDMENT NO. : 0002

PART 1 GENERAL

1.1 BID SCHEDULE

(TO BE ATTACHED TO STANDARD FORM 1442)

1.1.1 Schedule No. 1

Item No. Description Estimated Quantity

Unit Unit Price Estimated Amount

SCHEDULE NO. 1

0001 Mobilization and Demobilization 1 JOB SUM $___________

0002 Clearing, Grubbing, and Removal of Debris

1 JOB

SUM

0003 Demolition of Existing Drop-Outlet Structure

1 JOB SUM $___________

0004 Construction of New Drop-Outlet Structure

1 JOB $___________ $___________

0005 Dewatering / Perimeter Ditches 7,169

Linear Feet

L.F. $___________ $___________

TOTAL SCHEDULE NO. 1 $___________

NOTE: Completion time stated in SECTION 00 73 00.00 45 SPECIAL CONTRACT REQUIREMENTS, STANDARD is for Schedule No. 1 work.

DOCUMENT 00 11 00.00 45 Page 3

1.1.1.1 Option 1

Item No. Description Estimated Quantity

Unit Unit Price Estimated Amount

OPTION 1

0006 Clearing, Grubbing, and Removal of Debris

1 JOB SUM $___________

0007 Stripping 1 JOB SUM $___________

0008 Semi-Compacted Containment Dike Raise

134,580 CY $__________ $___________

0009 Turfing 1 JOB SUM $___________

0010 Final Construction Survey

1 JOB SUM $___________

TOTAL SCHEDULE NO. 1 and OPTION NO. 1

NOTE FOR OPTION NO. 1: The Government may exercise this Option by written notice to the Contractor prior to the end of Schedule No. 1 completion. An additional time of 172 calendar days will be added to this Contract for completion of this Option.

-- End of Document --

DOCUMENT 00 11 00.00 45 Page 4

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00.10

MEASUREMENT AND PAYMENT AMENDMENT NO. 0002

PART 1 GENERAL

1.1 LUMP SUM (JOB) PAYMENT ITEMS

1.1.1 Turfing

1.1.2 Mobilization and Demobilization

1.1.2.1 Payment

1.1.2.2 Unit of Measure

1.1.3 Clearing, Grubbing, and Removal of Debris AM#2

1.1.3.1 Payment AM#2

1.1.3.2 Unit of Measure

1.1.4 Stripping

1.1.4.1 Payment

1.1.4.2 Unit of Measure

1.1.5 Final Construction Survey

1.1.5.1 Payment

1.1.5.2 Unit of Measure

1.1.6 Demolition of Existing Drop-Oulet StructureAM#2

1.1.6.1 Payment AM#2

1.1.6.2 Unit of Measure

1.1.7 Construction of New Drop-Outlet StructureAM#2

1.1.7.1 Payment AM#2

1.1.7.2 Unit of Measure

1.2 UNIT PRICE PAYMENT ITEMS

1.2.1 Semi-Compacted Containment Dike Raise AM#2

1.2.1.1 Payment

1.2.1.2 Measurement

1.2.1.3 Unit of Measure AM#2

1.2.2 Dewatering AM#2

1.2.2.1 Payment AM#2

1.2.2.2 Monthly Partial Payment

1.2.2.3 Measurement

1.2.2.4 Electronic Positioning

1.2.2.5 Unit of Measure

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section Table of Contents --

SECTION 01 22 00.10 Page 1

SECTION 01 22 00.10 Page 2

SECTION 01 22 00.10

MEASUREMENT AND PAYMENT

AMENDMENT NO. 0002

PART 1 GENERAL

1.1 LUMP SUM (JOB) PAYMENT ITEMS

Payment items for the work of this Contract for which Contract lump sum payments will be made are listed in the BID SCHEDULE and specified below.

All costs for items of work, which are not specifically mentioned to be included in a particular lump sum or unit price payment item, are included in the listed lump sum item most closely associated with the work involved. The lump sum price and payment made for each item listed constitutes full compensation for furnishing plant, labor, materials, and equipment, turfing, and performing any associated Contractor Quality Control, administrative requirements, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.1.1 Turfing

1.1.1.2 Payment

Payment for "Turfing" in Schedule No. 1, will be made for costs associated with equipment, labor, material, time, and any other work in connection therewith.

1.1.2 Mobilization and Demobilization

1.1.2.1 Payment

Payment will be made for costs associated with "Mobilization and Demobilization", as defined in the SECTION 00 72 00 CONTRACT CLAUSES.

Payment for costs in connection with the plant necessary to perform the work, to include transportation and other costs incidental to delivery of the plant and other equipment to the general work area in condition ready for operation, and after completion of the work for removal of the plant and equipment from the work site.

1.1.2.2 Unit of Measure

Unit of measure: Job.

1.1.3 Clearing, Grubbing, and Removal of Debris AM#2

1.1.3.1 Payment AM#2

Payment for clearing, grubbing, and removal of debris will be made at the Contract lump sum price for "Clearing, Grubbing, and Removal of Debris" in Schedule No. 1 and Opt i on 1, which will include equipment, labor, and material to perform the work specified herein.

SECTION 01 22 00.10 Page 3

1.1.3.2 Unit of Measure

Unit of measure: Job.

1.1.4 Stripping

1.1.4.1 Payment

Payment for stripping will be made at the Contract lump sum price for "Stripping" in Option No. 1, which will include equipment, labor, and material to perform the work specified herein.

1.1.4.2 Unit of Measure

Unit of measure: Job.

1.1.5 Final Construction Survey

1.1.5.1 Payment

Payment for "Final Construction Survey" in Option No. 1, will be made for costs associated with collecting, processing, and providing the surveys, topographic line drawings to include contour mapping and accompanying data for the final lines and grades following completion in an approved digital format (ASCII .xyz file or LIDAR .las file), which will include all equipment, labor, and material required for its completion.

Means and methods of collection are up to the Contractor, but specifications require at least 1 point per 10 square foot with vertical and horizontal accuracy of 0.13 feet. The survey will cover the area designated for the containment dike raise. The data will be submitted to Contracting officer for verification and records prior to payment.

1.1.5.2 Unit of Measure

Unit of measure: Job.

1.1.6 Demolition of Existing Drop-Oulet Structure AM#2

1.1.6.1 Payment AM#2

Payment for "Demolition of Existing Drop-Outlet Structure" in Schedule No.

1, will be made for costs associated with materials, labor and equipment for demolishing the drop-outlet structure, removing and disposing the remnants to an approved offsite location, and will include, but is not limited to, removal of structural members, footings, walkway, grading, excavation required for its removal, trimming the foundation piles, and any other work in connection therewith , t o i ncl ude any r emoval , r epl acement , and r est or at i on of ear t hwor k needed t o r ebui l d l evees t o or i gi nal condi t i on. .

1.1.6.2 Unit of Measure

Unit of measure: Job.

SECTION 01 22 00.10 Page 4

1.1.7 Construction of New Drop-Outlet Structure AM#2

1.1.7.1 Payment AM#2

Payment for "Construction of New Drop-Outlet Structure Including Erosion Control Splash Pad" in Schedule No. 1, will be made for costs associated with materials, labor, and equipment for fabrication and installation of a new drop-outlet structure, which will include but is not limited to, foundation piles, painting, concrete footings, grating, walkway and support piers, sheet piling, handrails, stone for scour protection at pipe outfall, associated earthwork, and any other work in connection therewith , t o i ncl ude what ever ear t hwor k i s necessar y and needed t o r ebui l d and r est or e l evee sl opes and condi t i ons ar ound pl acement of new st r uct ur e. .

1.1.7.2 Unit of Measure

Unit of measure: Job.

1.2 UNIT PRICE PAYMENT ITEMS

Payment items for the work in this Contract on which the Contract unit price payments will be made are listed in the BID SCHEDULE and specified below. The unit price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor Quality Control, administrative requirements, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.2.1 Semi-Compacted Containment Dike Raise AM#2

1.2.1.1 Payment

Payment for "Semi-Compacted Containment Dike Raise" in Option No. 1, will be made for costs associated with raising the containment dikes and will include excavation, hauling, placing, and semi-compaction of impervious fill, and any other work in connection therewith.

1.2.1.2 Measurement

The total quantity of material for which payment is to be made will be the neat-line volumes of in-place quantity between the pre-construction ground surface after clearing/grubbing and stripping as determined by survey and the grade and slope of the final raised or repaired dike cross sections constructed as specified in SECTION 35 41 00.01 45 EMBANKMENT CONSTRUCTION. In the case of the dike repairs the excavated eroded areas will constitute the ground surface. The theoretical quantity will be calculated by the average end-area method. No allowance will be made for material outside the required slope lines unless authorized.

1.2.1.3 Unit of Measure AM#2

Unit of measure: l i near f oot

1.2.2 Dewatering AM#2

1.2.2.1 Payment AM#2

Payment will be made for costs associated with the work for "Dewatering"

SECTION 01 22 00.10 Page 5 in Schedule No. 1, which will include all costs in connection with the respective work to include excavating, hauling, placement of the excavated materials as shown or directed by the Contracting Officer, maintaining the trenches to function at all times during construction in each pay item until completion and final acceptance of the work. No payment wi l l be made f or such st ockpi l i ng nor f or t he r el oadi ng and haul i ng of t hi s mat er i al t o i t s f i nal posi t i on i n t he cont ai nment di ke.

1.2.2.2 Monthly Partial Payment

Monthly partial payment will be based on approximate quantities determined by surveying. Furnish with each partial pay request a color-coded graphic to show what areas have been requested for payment up to and including the current month, and what areas have been accepted by the Contracting Officer. Submit plotted electronic (PDF) copies of the surveyed work on a plan view to substantiate the partial pay request

1.2.2.3 Measurement

Trenches will be measured along the centerline of each trench, by means of surveys taken after work is complete. Measurement will be the whole foot rounded up from 0.5 foot increment.

1.2.2.4 Electronic Positioning

The control points shown are the horizontal and vertical control points the Contractor will use to perform electronic surveys. The Government does not guarantee permanent access to these control points, therefore, it may be necessary for the Contractor to establish its own network of survey points from these survey points or from other U.S. Coast and Geodetic Survey (USCGS) monuments.

1.2.2.5 Unit of Measure

Unit of measure: linear foot.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section --

SECTION 01 22 00.10 Page 6

DIVISION 31 - EARTHWORK

SECTION 31 23 19.00 45

DEWATERING AMENDMENT NO. 0002

PART 1 GENERAL

1.1 SUMMARY

1.2 MEASUREMENT AND PAYMENT

1.3 SUBMITTALS

1.4 NOTIFICATION PRIOR TO COMMENCEMENT OF DEWATERING OPERATIONS

1.5 PIPELINES/UTILITIES ACROSS THE LIMITS OF DEWATERING

1.6 CHARACTER OF MATERIALS

1.6.1 Material

1.6.2 Debris

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 ESTIMATED QUANTITIES

3.1.1 Estimated Quantities For Dewatering The Ditches

3.1.2 Ditching

3.2 DRAINAGE DITCHES

3.2.1 General

3.2.2 Ditches

3.2.3 Placing Material AM#2

3.2.4 Side Slopes

3.2.5 Maintenance

3.2.6 Berm

3.2.7 Unauthorized Placement of Material

3.2.7.1 Misplaced Excavated Material

3.2.7.2 Debris Disposal

3.2.8 Preservation of Public and Private Property

3.2.8.1 Damages

3.2.8.2 Accountability and Restoration

3.3 SURFACE DRAINAGE

3.3.1 Drainage

3.3.2 Existing Drop-Outlet structure

-- End of Section Table of Contents --

SECTION 31 23 19.00 45 Page 1

SECTION 31 23 19.00 45 Page 2

SECTION 31 23 19.00 45

DEWATERING

AMENDMENT NO. 0002

PART 1 GENERAL

1.1 SUMMARY

The work covered in this Section consists of furnishing plant, labor, materials, and equipment and performing the work specified herein and as shown, to construct drainage ditches and appurtenant items. The work includes draining and dewatering the Placement Area to facilitate future dike construction; however, the water is not to be completely removed by this work.

1.2 MEASUREMENT AND PAYMENT

Measurement and payment for dewatering will be paid for in accordance with provisions of SECTION 01 22 00.10 MEASUREMENT AND PAYMENT.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Notification Prior To Commencement of Dewatering Operations ; G

1.4 NOTIFICATION PRIOR TO COMMENCEMENT OF DEWATERING OPERATIONS

Notify the Resident Engineer, Derek Anderson (Houston Resident Office), in writing, at least 10 days prior to commencement of dewatering operations, of the location or locations at which a ditching machine or machines will be placed on the work. This information is required in addition to the progress charts and schedules provided for in the CONTRACT CLAUSE entitled

SCHEDULE FOR CONSTRUCTION CONTRACTS.

1.5 PIPELINES/UTILITIES ACROSS THE LIMITS OF DEWATERING

No pipeline/utilities are known to cross the work area, however the Contractor is urged to investigate the site to determine if any pipelines/utilities have been placed under or over the work area.

THE FOLLOWING IS FURNISHED FOR INFORMATION ON VERIFYING PIPELINE

OWNERSHIPS:

Lonestar Notification Center 1-800-545-6005 or online at https://txgc.texas811.org

Texas 811 (Dig-Tess) 1-800-344-8377

SECTION 31 23 19.00 45 Page 3

1.6 CHARACTER OF MATERIALS

1.6.1 Material

The material that is to be removed is composed of material deposited over a period of time from maintenance dredging of the Cedar Bayou Channel;

however, some virgin material may be encountered in the prescribed depth.

Bidders are expected to examine the worksite and after investigation decide for themselves the character of the materials.

1.6.2 Debris

Other materials, including scrap, rope, wire cable, snags, and stumps may be encountered in the specific limits and no separate payment will be made for removal and disposal of this debris.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 ESTIMATED QUANTITIES

3.1.1 Estimated Quantities For Dewatering The Ditches

The approximate length of perimeter ditches and lateral ditches to be excavated are as shown in the BID SCHEDULE.The term "perimeter ditch" is considered synonymous with "borrow area ditch" shown on the drawings.

3.1.2 Ditching

The layout and general alignment of the ditches are shown for which the estimated quantities are based. The Contracting Officer may make minor revisions to the alignment to better facilitate dewatering the Placement Area.

3.2 DRAINAGE DITCHES

3.2.1 General

Inspect the Placement Area to ensure that using the Areas for dewatering operations will not place them in violation of the applicable Federal, State or local statutes concerning fish and wildlife. Particular statutes the Contractor are to consider include, but are not limited to, the Federal Migratory Bird Treaty Act and the Endangered Species Act of 1973.

3.2.2 Ditches

Borrow area ditches are to be excavated to not less than the minimum required to ensure water runoff to the outlet structure. The minimum depth will vary. Due to the small size of the PA and quantity of borrow needed, the ditches will likely need to be field fitted. It may be necessary to excavate these ditches in several passes or steps, beginning with a shallow ditch and then deepening it in stages until the required depth and cross section is obtained. This is due to the soft, saturated material underlying the surface crust. Attempts to excavate the ditches to their full depth on the first pass, will likely cause sides to slough off, due to excess water in the material and low shear strength. However, if the ditch is initially excavated to some cross section less than full depth, SECTION 31 23 19.00 45 Page 4 so that the ditch will readily stay open, and if it is allowed to seep and drain for a period while work progresses elsewhere, the sides of the ditch and the material in the vicinity of the ditch will consolidate and gain strength, and the ditch can then be deepened on subsequent passes.

3.2.3 Placing Material AM#2

No material excavated from the ditches is to be placed within 20 feet of the ditch top of cut at any point. The materials, if satisfactory, from the perimeter ditches will be used as fill material for perimeter dike construction. Excavat ed mat er i al i s t o be st ockpi l ed at appr oved, desi gnat ed l ocat i on wi t hi n t he bor r ow ar ea i nsi de of di t ch and adj acent t o t he wor k unt i l i t s use i s aut hor i zed. St ockpi l ed mat er i al shoul d not be pl aced i n a cont i nuous l i ne but i nst ead shoul d l eave space adequat e f or suf f i c i ent dr ai nage t o occur .

3.2.4 Side Slopes

The side slopes shown are the steepest that may be used. Flatter side slopes may be required in places for stability.

3.2.5 Maintenance

Achieve and maintain the ditch sections until accepted. Collapse or sloughing of the ditches occurring prior to acceptance are to be corrected until they conform to the minimum requirements of this Contract.

Corrective action will be at the Contractor's expense. There will be reaches in the Placement Area where ditching of the perimeter dike will require cleaning out the existing perimeter ditch only. The perimeter ditch is to drain to the drop-outlet structure(s), to relieve the water in the perimeter ditch. As a minimum, the existing borrow ditch is to be cleared. The Contractor may have to provide a new perimeter ditch that blends into the existing borrow ditch as shown.

3.2.6 Berm

A berm with a minimum width of 50 feet is to remain undisturbed from dike toe to near edge of perimeter ditch. The ditch is to be located in the field as directed. It may be located in the existing borrow ditch if simply clearing and removal of obstructions result in a continuous perimeter ditch. It may be an extension off the existing ditch if foundation conditions are too poor in the existing ditch to locate the perimeter ditch within the old ditch.

3.2.7 Unauthorized Placement of Material

3.2.7.1 Misplaced Excavated Material

Excavated material that is deposited other than in places designated or approved will not be paid for and the Contractor may be required to remove the misplaced excavated material and deposit it where directed at no additional cost to the Government.

3.2.7.2 Debris Disposal

During the progress of the work, do not deposit worn out wire rope, scrap metal, timbers, other rubbish, or obstructive material in the Placement Area or along the banks of the navigable waters, except as specified herein.

SECTION 31 23 19.00 45 Page 5

3.2.8 Preservation of Public and Private Property

3.2.8.1 Damages

Fences, roads, ditches, private or public grounds, and other structure(s) or improvements damaged as a result of the Contractor's operations herein specified will be repaired or rebuilt by the Contractor at its expense.

3.2.8.2 Accountability and Restoration

Preserve and protect the existing informational and directional signs, camp facilities, water wells and tanks, station markers, mile markers, and mooring piles which have been established along either bank of the Waterway within the reaches of the operations covered herein. The Contractor is to be accountable for and will be required to replace or restore at its expense the signs, camp facilities, water wells and tanks, markers, and mooring piles damaged or destroyed as a result of operations herein specified.

3.3 SURFACE DRAINAGE

3.3.1 Drainage

Areas disturbed or affected by the work in this Contract are to be sloped or shaped to provide positive drainage of surface water.

3.3.2 Existing Drop-Outlet structure

Existing drop-outlet structure is to be demolished.

-- End of Section --

SECTION 31 23 19.00 45 Page 6

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 41 00.01 45

EMBANKMENT CONSTRUCTION AMENDMENT NO. 0002

PART 1 GENERAL

1.1 SUMMARY

1.2 MEASUREMENT AND PAYMENT

1.3 REFERENCE

1.4 PROTECTION OF EXISTING SERVICE LINES AND UTILITY STRUCTURES

1.5 CHANGES IN DIKE ALIGNMENT

1.6 STOCKPILING AM#2

1.7 QUANTITY SURVEYS

1.8 DAMAGE TO WORK

1.9 ENVIRONMENTAL LITIGATION

1.9.1 Suspension of Work

1.9.1.1 Definition

1.10 COORDINATION MEETINGS

PART 2 PRODUCTS

2.1 General

2.1.1 Satisfactory Materials

2.2 Haul Road Materials

2.3 Fill Materials

2.3.1 Impervious Fill Materials

2.3.2 Random Fill Materials

PART 3 EXECUTION

3.1 CONSTRUCTION

3.1.1 Lines and Grades

3.1.2 Drainage

3.1.3 Conduct of the Work

3.2 DEWATERING AND DIVERSION

3.3 EXCAVATION

3.3.1 Over-Excavation

3.3.1.1 Outside Limits of Containment Dike Foundation or Structures

3.3.1.2 Within Limits of Dike Foundation or Structures

3.3.2 Disposition of Excavated Materials

3.3.3 Utilities

3.4 BORROW AREAS

3.4.1 Government Furnished

3.5 TOLERANCES

3.6 FOUNDATION PREPARATION

3.7 EMBANKMENT CONSTRUCTION

3.7.1 General

3.7.1.1 Gradation and Distribution

3.7.1.2 Placing

3.7.1.3 Equipment Traffic

SECTION 35 41 00.01 45 Page 1

3.7.2 Random Fill - Access Dike

3.7.2.1 Random Fill Access Dike

3.7.3 Fill For Perimeter Dike

3.7.4 Moisture Control

3.7.4.1 Insufficient Moisture for Suitable Bond

3.7.4.2 Excessive Moisture for Suitable Bond

3.7.4.3 Drying Wet Material

3.7.4.4 Increase Moisture in Dry Materials

3.8 COMPACTION

3.8.1 Compaction Equipment

3.8.1.1 Tamping Rollers

3.8.1.2 Rubber-tired Rollers

3.8.1.3 Hand Operated Compactors

3.8.1.4 Crawler-type Tractors

3.8.2 Sprinkling Equipment

3.8.3 Miscellaneous Equipment

3.8.4 Compaction of Semi-Compacted Impervious and Random Fill

3.9 EROSION AND SLIDES

3.10 TURFING

3.11 QUALITY CONTROL

3.11.1 General

3.11.2 Records

3.12 Acceptance of Dike Construction

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SECTION 35 41 00.01 45 Page 2

35 41 00.01 45

EMBANKMENT CONSTRUCTION

AMENDMENT NO. 0002

PART 1 GENERAL

1.1 SUMMARY

The work covered in this Section consists of furnishing plant, labor, equipment,and performing the operations in connection with construction of a containment dike raise and new drop-outlet structure in the Placement Area(PA)as shown.Containment dike, dike, and embankment may be used interchangebly in this document.

1.2 MEASUREMENT AND PAYMENT

Measurement and payment for embankment construction will be paid for in accordance with provisions of the SECTION 01 22 00.10 MEASUREMENT AND

PAYMENT.

1.3 REFERENCE

The publication listed below forms a part of this specification to the extent referenced. The publication is referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D2487 (2017) Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)

1.4 PROTECTION OF EXISTING SERVICE LINES AND UTILITY STRUCTURES

No utilities/pipelines are known to exist at the project site. If the Contractor damages existing utility lines that are not shown or the locations of which are not known to the Contractor, report of this damage is to be made immediately to the Contracting Officer. If it is determined that repairs are to be made by the Contractor, these repairs will be ordered in accordance with the CONTRACT CLAUSE entitled CHANGES.

THE FOLLOWING IS FURNISHED FOR INFORMATION ON VERIFYING PIPELINE

OWNERSHIPS:

Lonestar Notification Center 1-800-545-6005 or online at https://txgc.texas811.org

Texas 811 (Dig-Tess) 1-800-344-8377

1.5 CHANGES IN DIKE ALIGNMENT

The Government reserves the right to make changes in the dike alignment as may be found necessary before completion of the work. If it becomes

SECTION 35 41 00.01 45 Page 3 necessary, through no fault of the Contractor, to abandon a line or location on which work has been done, payment for materials placed will be made as specified in the relevant payment item.

1.6 STOCKPILING AM#2

When the excavation from designated borrow sources progresses at a faster rate than fill placement is being accomplished, such excavated material is to be stockpiled at approved , desi gnat ed l ocat i on wi t hi n t he bor r ow ar ea i nsi de of di t ch and adjacent to the work until its use is authorized.

St ockpi l ed mat er i al shoul d not be pl aced i n a cont i nuous l i ne but i nst ead shoul d l eave space adequat e f or suf f i c i ent dr ai nage t o occur . No payment will be made for such stockpiling nor for the reloading and hauling of this material to its final position in the containment dike.

1.7 QUANTITY SURVEYS

(1) Quantity surveys are to be conducted. The data derived from these surveys will be used in computing the quantities of work performed and the actual construction completed and in place.

(2) The Contractor is to conduct the original and final surveys, and surveys for any periods for which progress payments are requested.

These surveys will be conducted under the direction of a representative of the Contracting Officer, unless the Contracting Officer waives this requirement in a specific instance. The Government will make the computations that are necessary to determine the quantities of work performed or finally in place. The Contractor is to make the computations based on the surveys for any periods for which progress payments are requested.

(3) Promptly upon completing a survey, the Contractor is to submit the originals of field notes and other records relating to the survey or to the layout of the work to the Contracting Officer, who will use them as necessary to determine the amount of progress payments.

Field notes for original and final surveys, and surveys for any periods for which progress payments are requested will be provided to the Contracting Officer in an ASCII data file format in the form of point name, easting, northing, and elevation. The Contractor is to retain copies of the material submitted to the Contracting Officer.

1.8 DAMAGE TO WORK

The responsibility for damage to any part of the permanent work will be as set forth in the CONTRACT CLAUSE entitled PERMITS AND RESPONSIBILITIES.

However, if in the judgment of the Contracting Officer, any part of the permanent work performed by the Contractor is damaged by flood, earthquake, hurricane, or tornado, which damage is not due to the failure of the Contractor to take reasonable precautions or to exercise sound engineering and construction practices in the conduct of the work, the Contractor will make the repairs as ordered by the Contracting Officer and full compensation for these repairs will be made at the applicable Contract unit or lump sum price as fixed and established in this Contract. If, in the opinion of the Contracting Officer, there are no Contract unit or lump sum prices applicable to any part of this work, an equitable adjustment pursuant to the CONTRACT CLAUSE entitled CHANGES of this Contract, will be made as full compensation for the repairs of that part of the permanent work for which there are no applicable Contract unit

SECTION 35 41 00.01 45 Page 4 or lump sum prices. Except as herein provided, damage to all work, including temporary construction; utilities; materials; equipment; and plant shall be repaired and approved at the Contractor's expense regardless of the cause of this damage.

1.9 ENVIRONMENTAL LITIGATION

1.9.1 Suspension of Work

If the performance of all or any part of the work is suspended, delayed, or interrupted due to an order of a court of competent jurisdiction as a result of environmental litigation, as defined below, the Contracting Officer, at the request of the Contractor, will determine if the order is due in any part to the acts or omissions of the Contractor or a subcontractor at any tier not required by the terms of this Contract. If it is determined that the order is not due in any part to acts or omissions of the Contractor or a Subcontractor at any tier other than as required by the terms of this Contract, this suspension, delay, or interruption will be considered as if ordered by the Contracting Officer in the administration of this Contract under the terms of the CONTRACT CLAUSE entitled SUSPENSION OF WORK. The period of this suspension, delay or interruption will be considered unreasonable, and an adjustment will be made for an increase in the cost of performance of this Contract, excluding profit, as provided in that CLAUSE, subject to the provisions thereof.

1.9.1.1 Definition

The term "environmental litigation," as used herein, means a lawsuit alleging that the work will have an adverse effect on the environment or that the Government has not duly considered, either substantively or procedurally, the effect of the work on the environment.

1.10 COORDINATION MEETINGS

Schedule and attend regular coordination meetings with the Government.

Meetings are to be scheduled as directed. Schedule and format of meetings to be determined at the Pre-Construction Conference. Contractor is responsible for preparation and dissemination of meeting minutes.

PART 2 PRODUCTS

2.1 General

Materials for embankment fills are to be secured from required excavations and from the borrow areas indicated. The intention is to use the most suitable materials obtainable from these sources. Material to be wasted will be specifically designated at the time the material is excavated.

Materials containing brush, roots, sod, or other perishable materials will not be considered suitable. The suitability of the materials will be subject to approval and their disposition in the embankment will be as directed. Excavate in the borrow areas in the locations determined by the Contracting Officer, whenever such control is necessary to obtain the type of material required for the embankment.

The Contracting Officer, according to his judgment, may request for a licensed 3rd party Geotechnical Engineer consultant to verify the suitability of the material with appropriate Geotechnical lab tests or equivalent procedures. Costs associated with verification will be at the

SECTION 35 41 00.01 45 Page 5

Contractor's expense.

2.1.1 Satisfactory Materials

Satisfactory materials for construction of the embankments are to consist of cohesive materials, including clays and sandy or silty clays, classified as CH, CL, CL-ML, SC, SW, SP, GC, and shell fragments free from roots, trash, debris, and other organic materials in accordance with

ASTM D2487.

2.2 Haul Road Materials

Materials for haul roads are to consist of satisfactory materials that include SW, SP, GW, GP, GM, and shell fragments which, from the standpoint of stability, and are suitable for use in haul road construction.

2.3 Fill Materials

2.3.1 Impervious Fill Materials

Material for compacted impervious fill is to consist of clays, silty clays, or clayey silts obtained from the designated borrow areas and required excavations. Material for impervious fill is to consist of satisfactory materials classified in accordance with ASTM D2487 as CL, CH, SC, and CL-ML. Materials used for the perimeter containment dike are to be classified as impervious fill materials.

2.3.2 Random Fill Materials

Materials used for access dikes and other temporary earthwork construction are to be classified as random fill materials. Material for the random fill is to consist of satisfactory materials classified in accordance with ASTM D2487 as CL, CH, SC, SW, SP, and shell fragments.

PART 3 EXECUTION

3.1 CONSTRUCTION

The soil profiles shown only represent general data taken during initial subsurface soil investigation. The Contractor is permitted to relocate to a different borrow area within the PA at the Contracting Officer's approval only if the designated borrow area materials are not suitable for specified fill materials.

The Contractor is to be aware that the PA has been utilized periodically throughout the years, and variable soil conditions should be anticipated, including saturated conditions.

3.1.1 Lines and Grades

Construct the containment dike raise and build an access dike to the lines, grades, and cross sections as shown, unless otherwise directed.

3.1.2 Drainage

There is standing water on the surface of the PA. Provide for the collection and disposal of surface and subsurface water prior to and during construction. Completely drain construction site during periods of construction to keep soil materials sufficiently dry. Construct storm

SECTION 35 41 00.01 45 Page 6 drainage features that can include ponds or basins, at the earliest stages of site development, and throughout construction. Grade the construction area to provide positive surface water runoff away from the construction activity or provide temporary ditches, swales, and other drainage features and equipment as required to maintain dry soils. Once drainage of the PA and sufficient drying of the foundation surfaces have been accomplished, additional excavation and dike construction can proceed. When unsuitable working platforms for equipment operation and unsuitable soil support for subsequent construction features develop, remove unsuitable material and provide new soil as specified herein. It is the responsibility of the Contractor to assess the soil and groundwater conditions and to employ necessary methods that will permit construction to proceed.

3.1.3 Conduct of the Work

Maintain and protect the newly constructed perimeter containment dike and access dike in a satisfactory condition during construction until final completion and acceptance of the work under this Contract. If, in the opinion of the Contracting Officer, the hauling equipment causes horizontal shear planes or slickensides, rutting, quaking, heaving, cracking, or excessive deformation of the dikes or backfill berms, limit the type, load, or travel speed of the hauling equipment on the dike or backfill berm. The Contractor may be required to remove, at no additional payment, dike material placed outside of prescribed slope lines. Approved dike, fill, or backfill material which is lost in transit or rendered unsuitable after being placed in the dike or backfill and before final acceptance of the work will be replaced using satisfactory material and methods at no additional cost to the Government. Excavate and remove from the dike or backfill material which is unsatisfactory, dispose of this material, and refill the excavated area as directed, at no additional cost to the Government.

3.2 DEWATERING AND DIVERSION

Surface and groundwater control is to be accomplished in coordination with the required excavation and dike construction. In the event of heavy rain fall, the surface and groundwater control may necessitate the use of temporary diversion ditches and pump. Methods for care of surface water and for controlling the surface and groundwater levels are to be subject to approval.

The borrow areas are to be drained continuously via drainage ditches which are to be connected to either interior or perimeter ditches during and after the completion of the construction work.

3.3 EXCAVATION

Excavation is to consist of removal of material in preparing the foundations for drainage pipe installation, removal of material to the lines and grades based on the existing pipe elevation, removal of objectionable materials, and reuse the excavated training and perimeter dike material for reconstruction of the perimeter dike. Over-excavation is to be backfilled to grade with similar over excavated material or satisfactory material and compacted to a density of at least that of the surrounding material.

Provide excavation for the drop-outlet structure sufficient to leave at least a 12 inch clearance between the outer structure surfaces and the face of the excavation or support members of sufficient size to permit the

SECTION 35 41 00.01 45 Page 7 placement and removal of forms for the full length and width of structure footings and foundations as shown. Remove loose disintegrated materials and thin strata. When concrete is to be placed in an excavated area, take special care not to disturb the bottom of the excavation. Do not excavate to the final grade level until just before the concrete is to be placed.

3.3.1 Over-Excavation

3.3.1.1 Outside Limits of Containment Dike Foundation or Structures

Over-excavation outside the limits of the dike foundations or structures is to be backfilled to grade with material similar to the over-excavated material or satisfactory material and compacted to a density of at least that of the surrounding material.

3.3.1.2 Within Limits of Dike Foundation or Structures

Over-excavation within the limits of the dike foundations or structures is to be backfilled to grade as specified.

3.3.2 Disposition of Excavated Materials

Satisfactory excavated material is to be incorporated in the appropriate zones of the dike templates. When direct placement is not practicable, satisfactory material from the excavation is to be stockpiled for subsequent use in parts of the work for which it is specified herein or as indicated. Satisfactory material in excess of the quantity necessary to construct backfills and dike is to be stockpiled for future construction work.

3.3.3 Utilities

No utilities are known to exist at the project site. If unknown utilites are encountered, the Contracting Offcier should be notified immediately.

If unknown utilites are encountered, the Contractor is responsible for movement of construction machinery and equipment over pipes and utilities during construction. For work immediately adjacent to or for excavations exposing a utility or other buried obstruction, excavate by hand. Start hand excavation on each side of the indicated obstruction and continue until the obstruction is uncovered or until clearance for the new grade is assured. Support uncovered lines or other existing work affected by the Contract excavation until approval for backfill is received. Report damage to utility lines immediately to the Contracting Officer.

Excavations for pipe beds are to be shaped to fit the contour of the pipe over a width of not less than 0.6 of the pipe diameter or as shown.

3.4 BORROW AREAS

3.4.1 Government Furnished

Borrow areas are to be excavated to the extent necessary to obtain satisfactory materials. The permissible depth(s) in the borrow areas is about 5 feet or to an elevation of +6 feet, whichever will permit water runoff to the outlet structure. Borrow areas are to be drained continuously and kept dry during excavation. Where possible, unsatisfactory materials in borrow areas are not to be removed.

Interior stockpile of satisfactory materials located within the PA is to

SECTION 35 41 00.01 45 Page 8 be utilized as borrow materials if the material is suitable.

3.5 TOLERANCES

Perimeter containment dike is to be constructed to match the adjacent grade. At every point a tolerance of 6 inches above or zero inches below the prescribed grade will be permitted in the final dressing, provided that excess material is distributed to ensure that the crown of the dike drains to the PA interior and that there are no abrupt humps or depressions in the surfaces.

Upon completion of construction operations, remaining stockpiled material is to be removed as directed by the Contracting Officer.

3.6 FOUNDATION PREPARATION

The stripped dike foundation areas are to be semi-compacted before placing new fill materials for the dike raising. If there are holes, cavities and depressions in the stripped foundation areas, it is to be filled with the same materials for semi-compaction prior to the initial semi-compaction.

Remove and replace unsatisfactory or very soft dredge materials in the perimeter dike, new drop-outlet structures, and access dike foundations with satisfactory materials by methods of displacing or excavation, as directed by the Contracting Officer.

3.7 EMBANKMENT CONSTRUCTION

3.7.1 General

Prior to beginning placement of fill on the dike foundation, notify the Government that the foundation is ready to receive fill and drainage pipe installation. No fill is to be placed on the dike and drainage pipe foundations until these areas have been inspected and given final approval. Unless otherwise directed, the embankment is to be maintained at approximately the same level regardless of the number of types of materials being placed.

3.7.1.1 Gradation and Distribution

The gradation and distribution of materials throughout each zone of the dike are to be so that the dike will be free from lenses, pockets, streaks, and layers of material differing substantially in texture or gradation from surrounding material of the same class. If lenses, pockets, or layers of materials differing substantially in texture or gradation from surrounding material occur in the spread material, the layer is to be mixed by harrowing or another approved method to blend the materials. During the placing and spreading process, continuously maintain a force of workers adequate to remove roots, debris, and oversize stones from the containment dike materials.

3.7.1.2 Placing

Fill material is not to be placed against concrete which has not been in place at least 14 days. Heavy equipment is not to be operated over pipes and buried structures until at least 2 feet of fill material has been placed and compacted over them. Within these areas, the fill is to be compacted with approved mechanical hand tamping equipment. Before placing

SECTION 35 41 00.01 45 Page 9 material for compacted fill, the foundation surface is to be cleared of existing vegetation and debris. Material not meeting the requirements for fill material as determined by the Contracting Officer will be removed.

Foundation surfaces and existing surfaces are to be scarified to a depth of 6 inches before placing the fill. Sloping ground surfaces, steeper than 1 Vertical to 6 Horizontal (1V:6H) on which fill or compacted backfill is to be placed is to be stepped or benched to form a proper bond with the existing surface. Compacted fill is to be placed with suitable equipment in uniform layers which, before compaction, is not to exceed 8 inches in depth if a tamping roller is used or 6 inches in depth if a light rubber-tired roller is used. No fill material is to be placed in water. Soft or unsatisfactory material in the fill area is to be removed as directed before placing the fill.

3.7.1.3 Equipment Traffic

Equipment traffic on a dike zone is to be routed to distribute the compactive effort as much as practicable. Ruts formed in the surface of a layer of spread material are to be filled before that material is compacted. If, in the opinion of the Contracting officer, the compacted surface of a layer of material is too smooth to bond properly with the succeeding layer, the surface is to be loosened by scarifying or other approved methods before material from the succeeding layer is placed.

3.7.2 Random Fill - Access Dike

Random fill is to be placed on access dike sections of the embankment.

Random fill material is to be placed and spread in layers not more than 24 inches in uncompacted thickness, except that within 4 feet of drop-outlet structures, the uncompacted layer thickness is to be reduced to 6 inches.

Layers are to be started full out to the slope stakes and be carried substantially horizontal and parallel to the dike centerline with sufficient crown or slope to provide satisfactory drainage during construction. The materials for random fill are to be placed or spread in layers, the first layer not more than 18 inches in thickness and the succeeding layers not more than 24 inches in thickness prior to compaction.

3.7.2.1 Random Fill Access Dike

Random fill is to be placed at in-situ moisture content.

3.7.3 Fill For Perimeter Dike

Impervious fill is to be placed in the perimeter containment dike.

Materials classified as impervious fill from the perimeter dike excavation are to be reused as fill materials. Impervious fill is not to be placed in water. Imperious fill material is to be placed and spread in layers not more than 18 inches in uncompacted thickness, except that within 4 feet of the drop-outlet structure, the uncompacted layer thickness is to be reduced to 6 inches. Layers are to be started full out to the slope stakes and be carried substantially horizontal and parallel to the dike centerline with sufficient crown or slope to provide satisfactory drainage during construction. The materials for imperious fill are to be placed or spread in layers, the first layer not more than 12 inches in thickness, and the succeeding layers not more than 18 inches in thickness prior to compaction.

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3.7.4 Moisture Control

The materials in each layer of the fill are to contain the amount of moisture, within the limits specified below or as directed, necessary to obtain the required compaction. Material that is not within the specified moisture content limits after compaction is to be reworked to obtain the specified moisture content, regardless of density.

3.7.4.1 Insufficient Moisture for Suitable Bond

If the top or contact surfaces of a partial fill section become too dry to permit a suitable…