AMEND-0001_W912HY21B0003.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 purpose of this amendment is show n below and on the pages follow ng: See below and see pages follow ing:

THE BID OPENING DATE IS EXTENDED TO 22 OCT 2020 AT 2:00 P.M. LOCAL TIME.

BID OPENING WILL BE BY TELECONFERENCE. THE TELECONFERENCE INFORMATION IS AS FOLLOWS:

Number – 888-675-2535; Access Code 5988314; Security Code 1313.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY

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 W912HY21B0003

X 9B. DATED (SEE ITEM 11)

22-Sep-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 X is extended, 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

02-Oct-2020

CODE

CONTRACTING DIVISION

US ARMY CORPS OF ENGINEERS

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:

W912HY21B0003

A0001-2

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

1. The specifications for Solicitation No. W912HY21B0003, CORPUS CHRISTI SHIP CHANNEL, TEXAS, PLACEMENT AREA NO. 13, NUECES: PLACEMENT AREA NO. 13 DIKE RAISE, are hereby amended as follows:

THE BID DUE DATE IS HEREBY RESCHEDULED FOR 22-OCT-2020 AT 2:00 P.M. LOCAL

TIME.

a) Specifications.

(1) 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.

(2) SECTION 35 31 19.32 45, RIPRAP AND BLANKET STONE – The enclosed SECTION 35 31 19.32 45 entitled RIPRAP AND BLANKET STONE supersedes that issued with this Solicitation.

(3) 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) None.

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

3 Encls:

1. SECTION 01 22 00.10, MEASUREMENT AND PAYMENT

2. SECTION 35 31 19.32 45, RIPRAP AND BLANKET STONE

3. SECTION 35 41 00.01 45, EMBANKMENT CONSTRUCTION

SWG FILE NO.: NUECES 803-359 SOLICITATION NO.: W912HY21B0003

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00.10

MEASUREMENT AND PAYMENT AMENDMENT NO. 0001

PART 1 GENERAL

1.1 LUMP SUM PAYMENT ITEMS

1.1.1 Mobilization and Demobilization

1.1.1.1 Payment

1.1.1.2 Unit of Measure

1.1.2 Demolish and Remove the Existing Drop-outlet Structure

1.1.2.1 Payment

1.1.2.2 Unit of Measure

1.1.3 New Drop-outlet Structure

1.1.3.1 Payment

1.1.3.2 Unit of Measure

1.1.4 As-Built Drawings

1.1.4.1 Payment

1.1.4.2 Unit of Measure

1.1.5 Turfing

1.1.5.1 Payment

1.1.5.2 Unit of Measure

1.2 UNIT PRICE PAYMENT ITEMS

1.2.1 Semi-compacted Containment Dike Construction

1.2.1.1 Payment

1.2.1.2 Measurement

1.2.1.3 Unit of Measure

1.2.2 Uncompacted Training Dike Construction

1.2.2.1 Payment

1.2.2.2 Measurement

1.2.2.3 Unit of Measure

1.2.3 Perimeter and Lateral Drainage Ditches

1.2.3.1 Payment

1.2.3.2 Measurement

1.2.3.3 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

(TO ACCOMPANY AMENDMNET NO. 0001 TO W912HY21B0003)

THIS PAGE INTENTIONALLY LEFT BLANK

SECTION 01 22 00.10 Page 2

SECTION 01 22 00.10

MEASUREMENT AND PAYMENT

AMENDMENT NO. 0001

PART 1 GENERAL

1.1 LUMP SUM 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, shall be 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 shall constitute full compensation for furnishing 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 the work required for which separate payment is not otherwise provided.

1.1.1 Mobilization and Demobilization

1.1.1.1 Payment

(AM#1)

The Contract price for "Mobilization and Demobilization", in Schedule No.

1, will include the costs in connection with mobilization and demobilization of the plant necessary to perform work under the various bid items. The Contract price shall include transportation and other costs incidental to delivery of the plant and other equipment to the general work area in condition ready for operation, the site requires the removal of trash, debris, large heavy equipment tires, and other industrial lubricants and fluids before work may begin, and, after the completion of the work, for removal of the plant, trash, debris, miscellaneous items, and equipment from the work site(s). Payment for mobilization and demobilization will be pursuant to the conditions as defined in the SECTION 00 72 00 CONTRACT CLAUSES.

1.1.1.2 Unit of Measure

Unit of measure: Job.

1.1.2 Demolish and Remove the Existing Drop-outlet Structure

1.1.2.1 Payment

Payment for "Demolish and Remove the Existing Drop-outlet Structure", in Schedule No. 1, will be made for costs associated with labor, equipment, demolishing and removal of the existing drop-outlet structure, which will include removal of structural members, concrete foundation, steel drainage pipes, catwalk, steel grating, excavation required for removal, cutting of foundation piles, disposal of demolished materials, and any incidental work in connection therewith.

SECTION 01 22 00.10 Page 3

1.1.2.2 Unit of Measure

Unit of measure: Job.

1.1.3 New Drop-outlet Structure

1.1.3.1 Payment

Payment for "New Drop-outlet Structure", in Schedule No. 1, will be made for costs associated with materials, labor, equipment, fabrication and installation of a new drop-outlet structure, which will include but not limited to foundation piles, concrete foundation, steel grating, walkways, P.V.C. sheet piles, handrails, steel drainage pipes, welding, painting, outfall stone protection, additional excavation and backfill for construction, new access dike, backfill and compaction the perimeter dike, and any incidental work in connection therewith.

1.1.3.2 Unit of Measure

Unit of measure: Job.

1.1.4 As-Built Drawings

1.1.4.1 Payment

The Contractor will be paid the amount indicated on the Bid Schedule upon the acceptance of all final As-Built Drawings for Placement Area No. 13.

The payment for "As-Built Drawings", in Schedule No. 1, includes all labor, equipment, material and supplies required to prepare the requisite drawings involving DMPA No. 13 and delivering them in the manner specified in the SECTION 01 78 00.00 45 CLOSEOUT SUBMITTALS.

1.1.4.2 Unit of Measure

Unit of measure: Job.

1.1.5 Turfing

1.1.5.1 Payment

Payment for "Turfing", in Schedule No. 1, will be made for costs associated with turf establishment, which will include all equipment, labor, maintenance and material required for its completion.

1.1.5.2 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 shall constitute full compensation for furnishing 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 the work required for each of the unit price items.

SECTION 01 22 00.10 Page 4

1.2.1 Semi-compacted Containment Dike Construction

1.2.1.1 Payment

Payment for "Semi-compacted Containment Dike Construction" in Schedule No.

1, will be made for costs associated with constructing the containment dike and includes stripping, excavation, hauling, placement, compaction of fill material, and any other incidental work in connection therewith.

1.2.1.2 Measurement

The total quantity of "Semi-compacted Containment Dike Construction" for which payment is to be made will be the neat-line volumes quantity between the ground surface as determined by a survey and the grade and slope of the final raised or repaired dike cross sections in accordance with the plans and specifications and as determined by surveys. In the case of dike repairs, the excavated or eroded areas will constitute the ground surface.

Cross Section used for quantity calculation shall be taken not farther apart than every 100 feet and where a change in section is located. The theoretical quantity shall be calculated by the average end-area method.

No allowance will be made for material outside the required slope lines unless authorized. (AM#1) Survey shall be performed after the foundation areas are prepared to receive fill materials.

1.2.1.3 Unit of Measure

Unit of measure: Cubic Yard.

1.2.2 Uncompacted Training Dike Construction

1.2.2.1 Payment

Payment for "Uncompacted Training Dike Construction", in Schedule No. 1, will be made for costs associated with constructing a new training dike system and will include stripping, excavation, hauling, placing uncompacted random fill material, and any incidental work in connection therewith.

1.2.2.2 Measurement

The total quantity of "Uncompacted Training Dike Construction" material for which payment is to be made will be the total length of constructed uncompacted training dike in accordance with the plans and specifications.

1.2.2.3 Unit of Measure

Unit of measure: Linear Foot.

1.2.3 Perimeter and Lateral Drainage Ditches

1.2.3.1 Payment

Payment for "Perimeter Ditch" and "Lateral Ditch", in Schedule No. 1, will be made for costs associated with excavating the drainage ditches on the interior of the placement area along the containment dike and includes any incidental work in connection therewith.

SECTION 01 22 00.10 Page 5

1.2.3.2 Measurement

"Perimeter Ditch" and "Lateral Ditch" as shown will be measured by linear distance along the center line of satisfactorily excavated drainage ditch.

1.2.3.3 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 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 31 19.32 45

RIPRAP AND BLANKET STONE AMENDMENT NO. 0001

PART 1 GENERAL

1.1 SUMMARY

1.2 MEASUREMENT AND PAYMENT

1.3 REFERENCES

1.4 DEFINITIONS

1.4.1 Stone Protection

1.4.2 Graded Riprap

1.4.3 Blanket Stone

1.5 SUBMITTALS

1.6 STORAGE OF CONSTRUCTION MATERIALS

1.7 Work Plan

PART 2 PRODUCTS

2.1 Blanket Stone

2.1.1 General

2.1.2 Material

2.2 STONE

2.2.1 General

2.2.1.1 Evaluation Testing of Stone

2.2.1.2 Gradation Test

2.2.1.3 Proportional Dimension Limitations

2.3 Riprap

PART 3 EXECUTION

3.1 BLANKET STONE

3.1.1 General

3.1.2 Placement

3.2 RIPRAP

3.2.1 General

3.2.2 Placement

3.2.2.1 General

3.2.2.2 Check Surveys

3.3 CONTRACTOR QUALITY CONTROL

3.3.1 Compliance Inspection

3.3.2 Disposition

3.4 MISPLACED MATERIAL

3.5 Reporting

ATTACHMENTS:

GRADATION TEST DATA SHEET

-- End of Section Table of Contents --

SECTION 35 31 19.32 45 Page 1

SECTION 35 31 19.32 45 Page 2

SECTION 35 31 19.32 45

RIPRAP AND BLANKET STONE

AMENDMENT NO. 0001

PART 1 GENERAL

1.1 SUMMARY

The work in this Section includes furnishing labor, equipment, and material for placing blanket stone and riprap for stone protection.

1.2 MEASUREMENT AND PAYMENT

Measurement and payment for the work specified herein will be paid for in accordance with provisions of the SECTION 01 22 00.10 MEASUREMENT AND

PAYMENT.

1.3 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C127 (2015) Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate

ASTM C136 (2006) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM C295/C295M (2012) Petrographic Examination of Aggregates for Concrete

ASTM C33/C33M (2016) Standard Specification for Concrete Aggregates

ASTM C535 (2012) Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

ASTM D3740 (2012a) Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction

ASTM D4791 (2010) Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate

ASTM D4992 (2014; E 2015) Evaluation of Rock to be Used for Erosion Control

(AM#1)

SECTION 35 31 19.32 45 Page 3

ASTM D6092 (14-el) Standard Practice for Specifying Standard Sizes of Stone for Erosion

ASTM D5312/D5312M (2012; R 2013) Evaluation of Durability of Rock for Erosion Control Under Freezing and Thawing Conditions

ASTM D5313/D5313M (2012; R 2013) Evaluation of Durability of Rock for Erosion Control Under Wetting and Drying Conditions

U.S. ARMY CORPS OF ENGINEERS (USACE)

COE CRD-C 144 (1992) Standard Test Method for Resistance of Rock to Freezing and Thawing

1.4 DEFINITIONS

1.4.1 Stone Protection

Stone protection is defined in this Contract as a system consisting of a layer or layers of filter material, such as bedding stone, or blanket stone, or geosynthetic fabric (geotextile) beneath a layer or layers of riprap.

1.4.2 Graded Riprap

Graded riprap is reasonably well graded, or other material that is durable and dense and deliberately selected and graded. It is loosely placed along or around shorelines, streambeds, bridge abutments pilings, and other shoreline structures to protect these features against water erosion. Stone riprap is normally produced by mechanical with a jaw crusher and grizzly after the stone has been mined by blasting in a quarry.

1.4.3 Blanket Stone

Blanket stone is generally well graded as specified Size Number: 1 in ASTM C33/C33M. It is placed under graded stone riprap in a layer or combination of layers, designed and installed in such a manner as to prevent the loss of underlying soil or finer materials because of moving water.

1.5 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. The following shall be submitted in accordance with the SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Work Plan ; G

Prior to starting construction, submit a construction work plan as specified below.

SECTION 35 31 19.32 45 Page 4

SD-04 Samples

Stone ; G

Suitable samples of stone to be used shall be submitted prior to delivery of the material to the worksite.

SD-06 Test Reports Gradation Test Evaluation Testing of Stone Blanket Stone Test and Service Records ; G

Suitable tests and service records to determine the acceptability of stone shall be submitted.

SD-07 Certificates Riprap Blanket Stone Weigh Scale Certification Certified Weight Scale Tickets

1.6 STORAGE OF CONSTRUCTION MATERIALS

Construction materials received with certified weights which cannot be used immediately for construction, but must be unloaded from the barges, rail cars, or trucks shall be stored in approved storage areas. The storage area shall be reasonably near the jobsite and shall be approved.

The storage area shall be a relatively smooth area so that the stored material can later be recovered free from dirt or other foreign materials.

1.7 Work Plan

Prior to the work submit a work plan that includes descriptions and details on what measures will be taken to protect the existing shoreline and adjacent complete works from being compromised or damaged by the proposed construction activities and operations. Describe the materials, equipment, construction techniques, sequences, and procedures that will be used to mobilize and transport the materials to the worksites, excavate the embankment slope for stone placement, and place stone as specified.

Provide detailed plans as to how the worksite is going to be accessed from the water. State how the worksite is going to be maintained during construction, cleaned up afterwards, and how demobilization will be executed.

PART 2 PRODUCTS

2.1 Blanket Stone

2.1.1 General

Submit the source for materials used for bedding. Blanket stone shall consist of gravel or crushed stone. Submit blanket stone test reports attesting that the blanket stone meet specified requirements.

2.1.2 Material

Blanket stone shall be composed of tough, durable particles, adequately

SECTION 35 31 19.32 45 Page 5 free from thin, flat and elongated pieces, and shall contain no organic matter nor soft, friable particles in quantities considered objectionable by the Contracting Officer. The aggregates shall meet the quality requirements of ASTM C33/C33M Size Number 1 on "Table 3 Grading Requirements for Coarse Aggregates," or equivalent and it shall be approved by the Contracting Officer.

Perform at least one test on each 1000 tons to be delivered to the project site placed for each specified gradation in accordance with ASTM C136.

All points on individual grading curves obtained from representative samples of blanket stone shall lie between the boundary limits as defined by smooth curves drawn through the tabulated gradation limits plotted on ENG FORM 2087 or similar form. The individual gradation curves within these limits shall not exhibit abrupt changes in slope denoting either gap grading or scalping of certain sizes or other irregularities which would be detrimental to the proper functioning of the bedding layers.

2.2 STONE

2.2.1 General

Conduct the tests in accordance with applicable ASTM and Corps of Engineers methods of tests, given in the Handbook for Concrete and Cement, in a laboratory validated by the Government. The cost of testing shall be borne by the Contractor.

2.2.1.1 Evaluation Testing of Stone

Evaluation Testing shall be the responsibility of the Contractor and shall be submitted prior to delivery of the material to the worksite. The information shall be furnished prior to preparation of pre-production demonstration stockpiles. The laboratory to perform the required testing shall be validated based on relevant paragraphs of ASTM D3740. The individual tests shall be listed for which the validation covers along with the date of the inspection.

Test Designation Riprap

Minimum Maximum

The method of test for Saturated Surface Dry (SSD) shall be ASTM C127. 2.48 2.6

The method of test for unit weight shall be ASTM C127 155 lbs 165 lbs

Petrographic Examination. Stone shall be evaluated in accordance with ASTM C295/C295M which shall include information required by ASTM D4992.

SECTION 35 31 19.32 45 Page 6

Test Designation Riprap

The absorption of the stone determined in accordance with ASTM C127

1.5% 3%

Resistance of Rock to Wetting and Drying. in accordance with

ASTM D5313/D5313M

0.5% 1%

Resistance to Freezing and Thawing.

Stone shall have a maximum loss of after the number of cycles specified in ASTM D5312/D5312M, Figure 1, when determining the durability of stone when subjected to freezing and thawing in accordance with COE CRD-C 144

ASTM D5312/D5312M.

5%

Resistance to Degradation in accordance with ASTM C535 . 40%

2.2.1.2 Gradation Test

The Contractor shall require that the selected quarry perform gradation tests from representative samples of stone prior to its shipment to the work site. Take the sample in the presence of the Contracting Officer.

Submit the gradation tests using a GRADATION TEST DATA SHEET. At least one gradation test shall be performed for the specified riprap and blanket stone. The gradation tests shall be reported using the forms, GRADATION TEST DATA SHEET attached at the end of this section and ENG FORM 4794.

Acceptance of stone as to conformance with gradation requirements will be made at the jobsite.

2.2.1.3 Proportional Dimension Limitations

The maximum aspect ratio (greatest dimension:least dimension) of any piece of stone for size ranges shall be not greater than 3:1 when measured across mutually perpendicular axis. Not more than 25 percent of the stones within a gradation range shall have an aspect ratio greater than 2.5:1. A maximum of 5 percent flat and elongated pieces by weight will be acceptable. A flat and elongated piece of riprap is defined as having a ratio of width to thickness or length to width greater than 3:1.

ASTM D4791 shall be used as a guide to perform the test.

2.3 Riprap

Stone shall be well graded in accoordance with ASTM D6092 and shall conform to the table(s) below:

SECTION 35 31 19.32 45 Page 7

TABLE - FOR RIPRAP

PERCENT LIGHTER BY WEIGHT (SSD) LIMITS OF STONE WEIGHT, (pounds)

100 180 - 400

50 80 - 160

15 30 -60

PART 3 EXECUTION

3.1 BLANKET STONE

3.1.1 General

Blanket stone composed of crushed rock or stone shall be placed over the prepared slope within the limits shown. The blanket stone shall conform to the requirements of the blanket stone Paragraph. Reasonably well-graded stone shall include essentially the stone sizes between the two extremes specified which shall result in a dense, fairly well-graded material not having noticeable voids or a lack of the larger sizes.

3.1.2 Placement

Blanket stone shall be spread uniformly using a satisfactory method to the neat lines shown. Placing stone by methods which may segregate particle size within the blanket shall not be permitted. Blanket stone placed under water shall be lowered beneath the water to the existing excavated bottom and slopes before being released.

3.2 RIPRAP

3.2.1 General

Riprap shall be placed within the limits shown or otherwise directed.

Either boulders or quarried rock may be used if conforming to the applicable requirements in this Section. A maximum of 5 percent by weight of chips and fragments resulting from handling may be placed in the finished section. The inclusion of objectionable quantities of gypsum, shale, and chert in the riprap shall not be permitted. The stone gradation shall be as specified. Specified stone shall include essentially stone sizes between the two extremes specified which shall result in dense, fairly well-graded material not having noticeable voids or a lack of the larger sizes. The stone shall conform to the gradation specified in PART 2.

3.2.2 Placement

3.2.2.1 General

Riprap shall be placed using a method that will produce a reasonably well graded mass of rock with the minimum practicable percentage of voids, and shall be constructed to the lines and grades shown. Riprap shall be placed using a method that shall minimize displacing the blanket material. The larger stones shall be well distributed and the entire mass of stones in their final position shall be roughly graded to conform to

SECTION 35 31 19.32 45 Page 8 the gradation specified above. The finished work shall be free from objectionable pockets of small stones and clusters of larger stones. The desired distribution of the various sizes of stones throughout the mass shall be obtained by selective loading of the material at the quarry or other source, by controlled dumping of successive loads during final placing, or by other methods of placement which shall produce the specified results. Riprap shall be placed in the dry to the extent practicable.

3.2.2.2 Check Surveys

Contractor surveys are required on each material placed for determining the materials are acceptably placed in the work. Make checks as the work progresses to verify lines, grades and thicknesses established for completed work. At least one check survey as specified below shall be made for each 100 foot section as shown after completion. Following placement of each type of material, the cross section of each step of the work shall be approved by the Contracting Officer before proceeding with the next step of the work. Approval of cross sections based upon check surveys shall not constitute final acceptance of the work. Cross sections shall be taken on lines 100 feet apart, measured along the structure reference line, with readings at 20-foot intervals and at breaks along the lines. However, other cross section spacing and reading intervals may be used if determined appropriate by the Contracting Officer. Additional elevations and soundings shall be taken as the Contracting Officer may deem necessary or advisable. The surveys shall be conducted in the presence of an authorized representative of the Contracting Officer, unless this requirement is waived by the Contracting Officer.

a. Above Water: The elevation of stone above the water surface shall be determined by the use of a leveling instrument and a rod having a base 12 inches in diameter. If approved by the Contracting Officer other means may also be used.

b. Below Water: For portions of the work that are under water, sounding surveys shall be performed either by means of a sounding pole or a sounding basket weighing about 8 1/2 pounds, each of which has a base measuring 12 inches in diameter.

c. Electronic Depth Recorder: The survey depth recorder used must be a standard model acceptable to the Contracting Officer using a sounding chart that can be read directly to the nearest foot and estimated to the nearest tenth (0.1) of a foot. Accuracy shall be better than 1/2 of 1 percent.

3.3 CONTRACTOR QUALITY CONTROL

3.3.1 Compliance Inspection

Inspect for compliance with this Contract requirements and record the inspection of the operations. A copy of the records of inspection and corrective action taken, shall be submitted as directed. The Contractor, at its expense, shall perform inspection in accordance with the following schedule:

SECTION 35 31 19.32 45 Page 9

(1) Blanket Stone (3/4" to 4" )

Gradation - one gradation test to be performed in accordance with CRD-C-103

Placement - continuous check of placement to ensure proper thickness and that material is not segregated

(2) Riprap ( 30-400 lbs)

Quality - one set of quality tests

Placement - continuous check of placement to ensure proper size and compliance with grade lines shown

3.3.2 Disposition

Do not deposit material of any kind or piece on the banks of a navigable water where same may be washed into the navigable water, either by ordinary or by high tides, storms or floods and impede or obstruct navigation, in accordance with 33 U.S.C. 407.

3.4 MISPLACED MATERIAL

If the Contractor, during the progress of the work, loses, dumps, throws overboard, sinks, or misplaces material, plant, machinery, or appliances which in the opinion of the Contracting Officer may be dangerous to or obstruct navigation, the Contractor shall recover and remove the same with the utmost dispatch. Give immediate notice, with description and location of these obstructions, to the Contracting Officer or Inspector and when required, shall mark or buoy these obstructions until same are removed.

If the Contractor refuses, neglects, or delays compliance with the above requirements, these obstructions may be removed by the Contracting Officer and the cost of removal shall be recovered by deducting it from the amounts due or to become due to the Contractor. The liability of the Contractor for the removal of a vessel wrecked or sunk without fault or negligence shall be limited to that provided in Sections 15, 19, and 20 of the River and Harbor Act of March 3, 1899 (33 U.S.C. 410 et seq).

3.5 Reporting

Reporting shall be in accordance with paragraph Gradation Test. A copy of the records of inspection and corrective action taken, shall be included in the daily quality control reports.

-- End of Section --

SECTION 35 31 19.32 45 Page 10

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 41 00.01 45

EMBANKMENT CONSTRUCTION AMENDMENT NO. 0001

PART 1 GENERAL

1.1 SUMMARY

1.2 MEASUREMENT AND PAYMENT

1.3 REFERENCE

1.4 DEFINITIONS

1.4.1 Classification of Soil

1.4.2 Containment Dike and Embankment

1.5 PROTECTION OF EXISTING SERVICE LINES AND UTILITY STRUCTURES

1.6 SITE CONDITION

1.6.1 Subsurface Soil Information of Borrow Materials

1.6.2 (AM#1) Quantity Surveys

1.7 CHANGES IN DIKE ALIGNMENT

1.8 STOCKPILING

1.9 SUBMITTALS

PART 2 PRODUCTS

2.1 General

2.1.1 Satisfactory Materials

2.1.2 Unsatisfactory Materials

2.2 Haul Road Materials

2.3 Fill Materials

2.3.1 (AM#1)Impervious Fill Materialss

2.3.2 Random Fill Materials

PART 3 EXECUTION

3.1 CONSTRUCTION

3.1.1 General

3.1.2 Lines and Grades

3.1.3 Drainage

3.1.4 Conduct of the Work

3.1.5 Volume

3.1.6 Tolerances

3.2 Excavation

3.2.1 General

3.2.2 Borrow Excavation

3.2.3 Disposition of Excavated Materials

3.2.4 Utilities

3.3 FOUNDATION PREPARATION

3.4 EMBANKMENT CONSTRUCTION

3.4.1 General

3.4.1.1 Gradation and Distribution

3.4.1.2 Placing

3.4.1.3 Equipment Traffic

SECTION 35 41 00.01 45 Page 1

3.4.2 Random Fill

3.4.3 Fill for Perimeter Dike

3.4.4 Moisture Control

3.4.4.1 Insufficient Moisture for Suitable Bond

3.4.4.2 Excessive Moisture for Suitable Bond

3.4.4.3 Drying Wet Material

3.4.4.4 Increase Moisture in Dry Materials

3.4.4.5 Random Fill Access Dike

3.4.5 Compaction

3.4.5.1 Compaction Equipment

3.4.5.2 Tamping Rollers

3.4.5.3 Rubber-tired Rollers

3.4.5.4 Hand Operated Compactors

3.4.5.5 Crawler-type Tractors

3.4.5.6 Sprinkling Equipment

3.4.5.7 Miscellaneous Equipment

3.4.6 Compaction of Semi-compacted

3.4.7 Compaction of Uncompacted Fill

3.5 EROSION AND SLIDES

3.6 Turfing

3.7 QUALITY CONTROL

3.7.1 Excavation

3.7.2 Containment Dike

3.7.2.1 General

3.7.2.2 Fill Placement

3.7.3 Records

-- End of Section Table of Contents --

SECTION 35 41 00.01 45 Page 2

35 41 00.01 45

EMBANKMENT CONSTRUCTION

AMENDMENT NO. 0001

PART 1 GENERAL

1.1 SUMMARY

The work covered in this Section consists of furnishing labor, equipment, and other incidentals necessary to perform construction of semi-compacted perimeter containment dike, uncompacted berm and training dike with materials excavated from within Placement Area (PA)No. 13. Grading the borrow areas to drain and other associated earthworks shall be considered incidental work.

1.2 MEASUREMENT AND PAYMENT

Measurement and payment for the work specified herein will be paid for in accordance with provisions of the SECTION 01 22 00.10 MEASUREMENT AND

PAYMENT.

1.3 REFERENCE

The publications listed below form a part of this specification to the extent referenced. The publications are 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)

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

1.4 DEFINITIONS

1.4.1 Classification of Soil

Material used to construct the Containment Dike and for backfill shall be classified in accordance with ASTM D2487. Cohesionless materials include materials classified as GW, GP, SW,and SP. Cohesive materials include materials classified as GC, SC, ML, CL,MH, and CH. Material classified as SW, SP, GM, GW, GP and SM will be identified as cohesionless only when the fines are nonplastic.

1.4.2 Containment Dike and Embankment

The terms "Embankment", "Containment Dike" and "Dike" are interchangeable in these specifications and drawings. Embankment or Containment Dike are

SECTION 35 41 00.01 45 Page 3 defined as the earth fill portions of the earthen structural system or other fills related to earthen construction, including training dike, perimeter dike, and berms.

1.5 PROTECTION OF EXISTING SERVICE LINES AND UTILITY STRUCTURES

Existing utility lines that are shown or the locations of which are made known to the Contractor prior to excavation and that are to be retained, as well as utility lines constructed during excavation operations, shall be protected from damage during excavation and backfilling and if damaged shall be repaired by and at the expense of the Contractor. 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 shall 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.

EVERY EFFORT HAS BEEN MADE TO GIVE PERTINENT DETAILS ON THE LOCATION

OF THE PIPELINES/UTILITIES. THE DATA FURNISHED ON THE PLANS ARE

BELIEVED TO BE SUBSTANTIALLY CORRECT. HOWEVER, THE EXACT LOCATIONS

MAY VARY FROM THAT SHOWN: THEREFORE, THE CONTRACTOR SHALL COOPERATE

WITH THE RESPECTIVE OWNERS TO ESTABLISH THE ACTUAL POSITION OF THE

PIPELINES/UTILITIES. THE U.S. ARMY CORPS OF ENGINEERS PERMITS OF THE

RESPECTIVE PIPELINES/UTILITIES AND PREVIOUS SURVEYS ARE AVAILABLE.

THE FOLLOWING IS FURNISHED FOR INFORMATION ON VERIFYING PIPELINE/UTILITY

OWNERSHIPS:

Lonestar Notification Center 1-713-432-0365

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

1.6 SITE CONDITION

1.6.1 Subsurface Soil Information of Borrow Materials

Subsurface Cone Penetration Testing (CPT) plots are shown from 2016 soil investigations. These data represent subsurface information at each CPT location; however, variations may exist in the subsurface between each CPT location. Groundwater levels encountered at the time of exploration are indicated on the CPT plots. The groundwater level in the PA can vary significantly depending on time of year and the amount precipitation.

If the designated borrow area materials are not suitable for a specified fill material, the Contractor is permitted to relocate to a different borrow area within the PA as approved by the Contracting Officer.

1.6.2 (AM#1) Quantity Surveys

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

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

SECTION 35 41 00.01 45 Page 4 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.

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, point name, easting, northing, and elevation. The Contractor is to retain copies of the material submitted to the Contracting Officer.

1.7 CHANGES IN DIKE ALIGNMENT

The Government reserves the right to make such changes in the dike alignment as may be found necessary before completion of the work. If it becomes necessary, through no fault of the Contractor, to abandon a line or location on which work has been performed, payment for materials placed will be made as specified in the corresponding payment line item.

1.8 STOCKPILING

When the excavation from designated borrow sources progresses at a faster rate than placement in the fill is being accomplished, such excavated material shall be stockpiled at approved locations adjacent to the work until its use is authorized. 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.

1.9 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. The following shall be submitted in accordance with the SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Excavation Plan ; G

A written excavation plan shall be submitted 21 calendar days prior to the beginning of excavation. Approval of the detailed Plan shall be obtained prior to starting the work. If necessary, modify the Plan as required to meet field conditions upon modification approval. As a minimum, the Plan shall include but is not limited to the following:

1. The proposed methods for controlling surface and ground water in the borrow areas and required excavations.

2. A complete listing of equipment used for excavation and to transport the excavated material.

SECTION 35 41 00.01 45 Page 5

3. Sequence of work for excavating the borrow areas with plan and cross sectional views showing starting and final work locations and clearing, grubbing and stripping limits.

Construction Plan ; G

1. Location of haul roads and construction method.

2. Listing of equipment for fill material placement, handling, transport, and compaction.

3. Sequence of construction for containment dike.

4. Methods for controlling drainage.

Compaction Equipment ; G

A written Compaction Equipment Description shall be submitted for approval 21 calendar days prior to placement of material for containment dike construction. The plan shall include all the equipement that will be used for compaction of fill material

PART 2 PRODUCTS

2.1 General

Materials for embankment fill shall 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 shall be subject to approval and their disposition in the embankment will be as directed.

2.1.1 Satisfactory Materials

Satisfactory Materials (AM#1) used on this project shall be as described in the following paragraphs and shall be free from roots, trash, debris, and other organic materials. Material classifications shall be perfermed in accordance with for construction of the embankments shall consist of cohesive materials, including clays and sandy or silty clays, classified as CH, CL, MH, ML, CL-ML, SC, SW, SP, GC and shell fragments free from oversized soil materials, roots, trash, debris, and other organic materials in accordance with ASTM D2487.

2.1.2 Unsatisfactory Materials

Unsatisfactory materials shall not be used in any containment dike or other required fill. Unsatisfactory materials includes all other materials that are not defined above as satisfactory materials.

2.2 Haul Road Materials

Materials for haul road shall consist of satisfactory materials.

SECTION 35 41 00.01 45 Page 6

2.3 Fill Materials

2.3.1 (AM#1) Dike Material Impervious Fill Materials s

Dike fill materials shall consist of satisfactory materials as specified above from the designated borrow areas and the required excavations Material for impervious fill is to consist of clays, silty clays, or clayey silts obtained from the designated borrow areas and required excavation. Material for impervious fill is to consist of satisfactory materials classified in accordance with ASTM D2487 as CL and CH.

Materials used for perimeter containment dike are to be classified as impervious fill materials.

(AM#1) 2.3.2 Random Fill Materials

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

PART 3 EXECUTION

3.1 CONSTRUCTION

3.1.1 General

The CPT soil profiles shown represent samples taken in specific locations during subsurface soil investigations in 2016. If the designated borrow area materials are not suitable for a specified fill, the Contractor is permitted to relocate to a different borrow area within the PA as a borrow source upon the approval of the Contracting Officer.

The Contractor shall be aware that the placement area has been utilized periodically through-out the years, and shall anticipate encountering extremely soft and saturated material. The Contractor shall submit a Construction Plan thirty days prior to placement of material for containment dike construction for approval. The plan shall include, but not be limited to, the sequence of construction for the containment dike, construction methods, equipment to be utilized for construction including excavation, handling, placement, and compaction. The Contractor shall also identify haul route locations and method of construction.

3.1.2 Lines and Grades

The containment dike construction shall be constructed to the lines, grades, and cross sections indicated, unless otherwise directed. The Government reserves the right to increase or decrease the foundation widths and containment dike slopes or to make other changes in the containment dike or berm sections as may be considered necessary to produce a safe earthen structure. Changes in quantities resulting from revisions will not constitute justification for change in Contract unit prices, except as provided for in the CONTRACT CLAUSE entitled VARIATIONS

IN ESTIMATED QUANTITIES.

3.1.3 Drainage

Provide for the collection and disposal of surface and subsurface water

SECTION 35 41 00.01 45 Page 7 encountered during construction. Keep the designated borrow areas continuously drain during borrow excavation. Construct storm 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 Placement Area 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.

Surface and groundwater control shall 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 pumps. Methods for care of surface water and for controlling the surface and groundwater levels shall be subject to approval.

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

3.1.4 Conduct of the Work

Maintain and protect the newly reconstructed perimeter containment dike, training 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, material placed outside of prescribed slope lines. Approved dike 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 shall be replaced using a satisfactory method at no additional cost to the Government.

3.1.5 Volume

The "neat-line volumes" have been used by the U.S. Army Corps of Engineers to prepare the Government estimate. The volumes are estimated only and the Contractor is responsible to interpret the volume numbers used to prepare his estimate for bid opening. "Neat-line volumes" is defined as the unadjusted, raw quantities computed from the containment dike templates. The percentage for items including overbuilding, compaction, settlement, foundation displacement, or construction waste, is the responsibility and decision of the Contractor.

3.1.6 Tolerances

The dikes shall be constructed to the grades, lines, and cross-sections shown. At every point a tolerance of half foot above or zero foot below the prescribed grade will be permitted in the final dressing at no

SECTION 35 41 00.01 45 Page 8 additional cost, provided that excess material is distributed to ensure that the crown of the containment dike drains to the PA interior and that there are no abrupt humps or depressions in the surfaces.

3.2 Excavation

3.2.1 General

Excavation shall 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 perimeter dike material for reconstruction of the perimeter dike. Over excavation shall 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.

First, the Contractor shall borrow and reshape the previous dredge deposits which had been discharged to higher than the foundation areas of the perimeter containment dike; and shall grade these areas to drain toward the new drop-outlet structure.

Where there are washout gullies, the Contractor shall excavate materials from adjacent areas to backfill the gullies and semi-compacted to 1 in vertical and 3 in horizontal slope to an acceptable condition.

3.2.2 Borrow Excavation

The designated borrow areas for which an Excavation Plan shall be submitted prior to initiating any containment dike lift operation are shown. The permissible depth(s) in the borrow areas vary with the existing PA interior ground elevation, the maximum depths shall not be deeper than the invert elevation of drainage structure. Borrow areas shall be drained and kept draining continuously during the entire construction period. The bottom of borrow areas shall be graded smooth and drain toward the drop-outlet structure during and after the borrow excavation is completed.

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

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

3.2.3 Disposition of Excavated Materials

Satisfactory excavated material shall be incorporated in the appropriate zones of the dike templates. When direct placement is not practicable, satisfactory material from the excavation shall 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 shall be stockpiled for future construction work.

3.2.4 Utilities

The Contractor is responsible for movement of construction machinery and

SECTION 35 41 00.01 45 Page 9 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.