Amendment0001.pdf

W25PHS91255975

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

THIS AMENDMENT DOES NOT EXTEND THE BID OPENING DATE OF 8 AUGUST 2009 AT 11:00 AM LOCAL TIME

1. CONTRACT ID CODE PAGE OF PAGES

J 1

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 W912BU-09-B-0024

X 9B. DATED (SEE ITEM 11)

17-Jul-2009

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) RECOVERY--Repair Reedy Point North Jetty, Inland Waterway Delaware River to Chesapeake Bay, DE and MD

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

07-Aug-2009

CODE

4. REQUISITION/PURCHASE REQ. NO.

CODE

US ARMY ENGINEER DIS RICT, PHILADELPHIAT

CONTRACTING DIVISION

WANAMAKER BUILDING

100 PENN SQUARE EAST

PHILADELPHIA PA 19107-3390

W912BU 7. ADMINISTERED BY (If other than item 6)

See Item 6

CODE FACILITY CODE

EMAIL:TEL:

14. DESCRIPTION OF AMENDMENT (continued)

a. SPECIFICATIONS:

(1) Section 00815 – WAGE RATES: Please delete Section 00815 in its entirety and substitute revised Section 00815 annotated Amendment No. 0001, attached hereto.

(2) Please delete the following sections in their entirety and substitute the revised sections of the same numbers, annotated Amendment No. 0001, attached hereto.

01 11 00 SUMMARY OF WORK

31 34 10 STONE FILLED MARINE MATTRESS

31 36 00 STONE

b. Please indicate receipt of this amendment on Standard Form 1442(SOLICITATION, OFFER, AND AWARD) as Amendment No. 0001. Failure to acknowledge all amendments may be cause for rejection of the bid.

General Decision Number: DE080012 07/24/2009 DE12

Superseded General Decision Number: DE20070019

State: Delaware

Construction Type: Heavy

County: New Castle County in Delaware.

Modification Number Publication Date 0 02/08/2008 1 04/11/2008 2 06/20/2008 3 07/04/2008 4 03/20/2009 5 05/01/2009 6 06/05/2009 7 07/17/2009 8 07/24/2009

BRDE0001-003 05/01/2009

Rates Fringes

BRICKLAYER.......................$ 27.50 15.93

* CARP0454-005 07/01/2009

Rates Fringes

PILEDRIVERMAN....................$ 37.55 26.63

Footnote: PAID HOLIDAYS: Washington's Birthday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day (provided the employee works the day before the holiday and the day after the holiday).

CARP0626-002 05/01/2007

Rates Fringes

Carpenter:

Carpenter...................$ 28.82 15.09 Scaffold Building...........$ 29.57 15.09

Amendment No. 0001

IFB W912BU-09-B-0024

Section 00815 Page 1

CARP1545-002 05/01/2007

Rates Fringes

MILLWRIGHT.......................$ 31.07 22.13

* ELEC0313-001 06/01/2009

Rates Fringes

ELECTRICIAN......................$ 34.06 20.90

ENGI0542-006 05/01/2009

Rates Fringes

Operating Engineers:.............$ 34.54 $18.77+A Bulldozer and Forklift......$ 32.22 18.09+A

FOOTNOTE A: PAID HOLIDAYS: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christams Day, and Election Day -- provided the employee works the scheduled work day before and after the holiday.

IRON0451-002 07/01/2008

Rates Fringes

Ironworkers:

Ornamental, Reinforcing, Rigger and Structural.......$ 29.60 23.40

LABO0199-004 05/01/2009

Rates Fringes

Laborers:

Brick Mason Tender..........$ 22.80 13.30 Common or General...........$ 22.80 13.30

PAIN0021-027 05/01/2009

Rates Fringes

PAINTER: Steel Only.............$ 24.89 13.28

Amendment No. 0001

Section 00815 Page 2

SUDE2007-005 08/16/2007

Rates Fringes

CEMENT MASON/CONCRETE FINISHER...$ 22.92 2.88

LABORER: Pipelayer..............$ 17.43 4.51

OPERATOR: Backhoe...............$ 24.58 9.87

OPERATOR: Crane.................$ 23.83 12.13

OPERATOR: Excavator.............$ 24.99 3.85

OPERATOR: Loader................$ 21.83 7.30

OPERATOR: Roller................$ 18.94 3.25

TRUCK DRIVER: Dump Truck........$ 16.11 1.68

WELDERS - Receive rate prescribed for craft performing operation to which welding is incidental.

Unlisted classifications needed for work not included within the scope of the classifications listed may be added after award only as provided in the labor standards contract clauses (29 CFR 5.5(a)(1)(ii)).

In the listing above, the "SU" designation means that rates listed under the identifier do not reflect collectively bargained wage and fringe benefit rates. Other designations indicate unions whose rates have been determined to be prevailing.

WAGE DETERMINATION APPEALS PROCESS

Amendment No. 0001

Section 00815 Page 3

1.) Has there been an initial decision in he matter? This can be:

* an existing published wage determination

* a survey underlying a wage determination

* a Wage and Hour Division letter setting forth a position on a wage determination matter

* a conformance (additional classification and rate) ruling

On survey related matters, initial contact, including requests for summaries of surveys, should be with the Wage and Hour Regional Office for the area in which the survey was conducted because those Regional Offices have responsibility for the Davis-Bacon survey program. If the response from this initial contact is not satisfactory, then the process described in 2.) and 3.) should be followed.

With regard to any other matter not yet ripe for the formal process described here, initial contact should be with the Branch of Construction Wage Determinations. Write to:

Branch of Construction Wage Determinations Wage and Hour Division U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

2.) If the answer to the question in 1.) is yes, then an interested party (those affected by the action) can request review and reconsideration from the Wage and Hour Administrator (See 29 CFR Part 1.8 and 29 CFR Part 7).

Write to:

Wage and Hour Administrator U.S. Department of Labor

Amendment No. 0001

Section 00815 Page 4

200 Constitution Avenue, N.W.

Washington, DC 20210

The request should be accompanied by a full statement of the interested party's position and by any information (wage payment data, project description, area practice material, etc.) that the requestor considers relevant to the issue.

3.) If the decision of the Administrator is not favorable, an interested party may appeal directly to the Administrative Review Board (formerly the Wage Appeals Board). Write to:

Administrative Review Board U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

4.) All decisions by the Administrative Review Board are final.

END OF GENERAL DECISION

Amendment No. 0001

Section 00815 Page 5

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 SCOPE OF SECTION

This section presents a general description of the work to be accomplished under this contract at Reedy Point North Jetty.

1.2 DESCRIPTION OF WORK

The major items of work to be performed under this contract include, but are not limited to, the following:

a. Clearing and excavating phragmites.

b. Repair of jetty including rehandling existing capstone and placing new marine mattress, corestone, and graded riprap.

c. Option for additional new capstone.

d. Removal of existing wood poles and sign, and concrete foundations.

e. Construction of new navigation tower concrete foundation.

f. Installation of new ladder.

1.3 ORDER OF WORK

Completion of work in Area No.1 is a priority due to restrictions specified in Section 01 57 20, ENVIRONMENTAL PROTECTION. However, other requirements specified in Section 31 36 00, STONE necessitate Work in Area No. 2 be completed prior to some portions of work in Area No. 1. The Contractor shall schedule work to comply with the requirements of the above referenced sections. Work in Area No. 3. shall not commence until the completion of work in Area No. 1 without written authorization of the COR.

1.4 COORDINATION OF WORK

Portions of the Reedy Point Disposal Area available as a borrow source under this contact are be in use for work outside this contract. The Contractor shall not interfere with ongoing operations in the area. The Contractor working in this area is Richard E. Pierson Construction Company, P.O. Box 430, Woodstown, NJ 08098-0430, POC: Curt Mitchell, 856-769-8244.

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION (Not Applicable)

-- End of Section --

Section01 11 00 Page 1

SECTION 31 34 10

STONE-FILLED (SF) MARINE MATTRESSES

PART 1 GENERAL

1.1 SCOPE OF SECTION

The work covered by this section consists of furnishing all labor, materials, plant and equipment and performing all operations required to provide stone-filled (SF) marine mattresses.

1.2 REFERENCES

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

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO M 43 Standard Specification for Sizes of Aggregate for Road and Bridge Construction

ASTM INTERNATIONAL (ASTM)

ASTM D 4355 (2007) Deterioration of Geotextiles from Exposure to Light, Moisture and Heat in a Xenon-Arc Type Apparatus

ASTM D 4759 (2002; R 2007) Determining the Specification Conformance of Geosynthetics

ASTM D 1388 (2008) Standard Test Method for Stiffness of Fabrics

ASTM D 5818 (2006) Standard Practice for Exposure and Retrieval of Samples to Evaluate Installation Damage of Geosynthetics

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

EPA Method 9090 Compatibility Tests for Wastes and Membrane Liners

GEOSYNTHETIC INSTITUTE (GSI)

GSI GRI GG1 (1987; R 1988) Geogrid Rib Tensile Strength

GSI GRI GG2 Geogrid Junction Strength

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. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

Section31 34 10 Page 1

NOTE: Any submittals classified as "SD-01 Preconstruction Submittals" are submittals required to be submitted to, and approved by, the office indicated prior to commencing any contract work at the project site, unless otherwise approved by the COR. All other submittals, classified as "SD-02" through "SD-11," shall be submitted to, and approved or reviewed by, the office indicated prior to commencing the particular task to which the submittal is associated.

SD-02 Shop Drawings

SF Marine Mattress; G,DO

Contractor shall provide shop drawings, specifically for this contract, depicting the fabrication of the SF marine mattresses including all connections.

SD-04 Samples

Structural Geogrid; G,DO. Stone for Filling SF Marine Mattresses;

G,DO. Connectors; G,DO.

The Contractor shall furnish physical examples of the structural geogrid, stone for filling the SF mattresses, and connectors that are physically identical to the materials to be used in the contract work.

SD-07 Certificates

SF Marine Mattresses Fabrication Work Plan; G,DO.

The Contractor shall submit for approval his proposed plan for fabricating and filling the SF marine mattresses. Equipment, labor, materials, and methods shall be detailed for this task.

(See Section 31 36 00, STONE for requirement for work plan to install SF mattresses).

SF Marine Mattresses; G,DO.

The Contractor shall furnish the Contracting Officer, in duplicate, a manufacturer's certificate or affidavit signed by a legally authorized official from the company manufacturing the SF mattresses, that all materials contained within that shipment meet the composition, physical, and manufacturing requirements stated in this specification. Certificate of compliance shall be submitted for the mattress prior to delivery to the work site.

Sieve Curve; G,DO.

The Contractor shall submit a sieve curve for the stone proposed for filling the SF marine mattresses.

1.4 DESCRIPTION

The compartmental rectangular mattresses, lined with geotextile, shall be filled with stone. The required width and depth of the SF mattresses shall be as shown on the drawings. The mattresses may be fabricated and filled off-site or on-site, for lifting into place.

Section31 34 10 Page 2

NOTE: Mattresses, larger (but not thicker) than shown on the contract drawings, may be utilized, if approved by the manufacturer. The Contractor shall have the proper lifting equipment (including spreader bar) to lift and place the larger mattresses. The final approval for the use of larger mattresses shall be obtained from the Contracting Officer.

1.5 STORAGE

The mattress materials shall be stored in conditions as recommended by the manufacturer. The contractor shall prevent excessive mud and other like construction materials from affixing to the mattress. Stockpiles of mattresses, at the point of fabrication and at the project site, shall be covered and protected if not installed within one month of production.

1.6 ON-SITE TECHNICAL ASSISTANCE

A qualified representative of the SF marine mattress supplier shall be present at the job site during the first week of installation to provide technical assistance. The representative shall also be available on an as needed basis anytime thereafter. The Contractor shall remain solely responsible for the quality of installation.

PART 2 PRODUCTS

2.1 STRUCTURAL GEOGRID

2.1.1 Material Specifications

The stone-filled marine mattresses shall be fabricated from structural geogrid. The structural geogrid shall be an integrally formed grid structure manufactured of a stress resistant polypropylene or high density polyethylene material with molecular weight and molecular characteristics which impart high resistance to loss of load capacity or structural integrity when the geogrid is subjected to mechanical stress in installation and/or long-term environmental stress.

MD/XMD1

Load Capacity

True Initial Modulus at 1% Strain2 lb/ft 18,160/29,470

Structural Integrity

Junction Strength3 lb/ft 1,432/1,233

Flexural Stiffness4 mg-cm 750,000/

Torsional Stiffness5 kg-cm/deg 4.8/

Dimensions Aperture Size in. 1.0/1.3 Percent Open Area % 70 Minimum Thickness (any dimension) in. 0.045

The geogrid product shall also meet the following durability requirements:

Ultraviolet Stability6 98%

Resistance to installation damage (GP)7: 85%

Resistance to long term degradation8: 100%

Nominal roll size shall be 13.1 feet wide by 164 feet in length.

Section31 34 10 Page 3

Notes:

1 Machine Direction (MD) dimension is along roll length. Cross-Machine Direction (XMD) dimension is across roll width. Unless indicated otherwise, values shown are determined in accordance with ASTM D 4759.

Brief descriptions of test procedures are given in the following notes.

2 True resistance to elongation when initially subjected to a load measured via GSI GRI GG1 without deforming test materials under load before measuring such resistance or employing "secant" or "offset" tangent methods of measurement so as to overstate tensile properties.

3 Load transfer capability measured via GSI GRI GG2.

4 Resistance to bending force measured via ASTM D 1388.

5 Resistance to in-plane rotational movement measured by applying a 20 cm-kg moment to the central junction of a 9" x 9" specimen restrained at its perimeter (U.S. Army Corps of Engineers Methodology).

6 Retained strength after 500 hours of exposure per ASTM D 4355.

7 Resistance to loss of load capacity or structural integrity when subjected to mechanical stress in installation measured via ASTM D 5818 in a poorly graded gravel with a maximum 2 inch particle size (GP).

8 Resistance to loss of load capacity or structural integrity when subjected to chemically aggressive environments measured via EPA Method 9090 immersion testing.

2.1.2 Braid

The braid material shall be a hollow-core polyethylene braid and shall have a minimum diameter of 3/16 inch (nominal) with a breaking strength of not less than 400 lb load on a test specimen 36 inches in length. For UV stability, the braid material shall have a minimum carbon black content of 2.0% throughout.

2.1.3 Connectors

Bodkin connector rods shall be 3/8" diameter, round and composed of high density polyethylene.

2.2 GEOTEXTILE

Geotextile shall be as specified in Section 31 34 00 GEOTEXTILE.

2.3 STONE FOR FILLING MATTRESSES

2.3.1 Quality

Stone for filling marine mattresses shall be crushed stone. The stone shall be durable and of suitable quality to ensure suitable performance in the mattresses and the climate at the work site. Stone shall be free from cracks, seams, and other defects that would tend to increase its deterioration in the mattresses. The inclusion of objectionable quantities of dirt, sand, clay, and rock fines shall not be permitted.

2.3.2 Gradation

Stone for filling marine mattresses shall be a well-graded mixture with the following gradation:

Sieve Size %, by Weight, Passing

Section31 34 10 Page 4

(inches)

3 100 2-1/2 90-100 2 35-70 1-1/2 0-15 3/4 0-5

(Meets gradation for AASHTO M 43, size 2)

PART 3 EXECUTION

3.1 TEST MATTRESS

3.1.1 General

The Contractor shall fabricate a test SF mattress (geogrid, geotextile and stone). The COR and/or his designated representative shall be present during the assembly of the test mattress. The test mattress shall be fabricated at the facility where all the mattresses are to be fabricated.

The Contractor shall utilize and demonstrate the personnel, equipment, materials, and methods proposed in the approved work plan for fabricating the mattresses. The Contractor shall not fabricate any other mattresses until the test mattress is approved. Photos of the fabrication operation shall be taken in accordance with the requirements of Section 01 32 33

CONSTRUCTION PHOTOGRAPHY.

3.1.2 Coordination

The Contractor shall provide 10 days advance notification to the COR prior to commencing the construction of the test SF mattress. This advance notification to the COR will serve to facilitate coordination of the site visit with the Government's various technical and project personnel who will conduct the inspection.

3.2 FABRICATION OF SF MATTRESSES

3.2.1 General

Empty mattress units shall be fabricated as recommended by the manufacturer and as indicated on the contract drawings. The joints where the ends and baffles of each unit join the top or bottom of the unit shall be made with a mechanical connection.

3.2.2 Braid Material

All cut ends of braid material shall be knotted within 1 inch to 2 inch of the end to prevent unraveling of the braid material. The braid material shall be securely knotted to the geogrid at all ends of all stitched seams, and at a spacing not to exceed 6 feet along any stitched seam. Pieces of braid material may be spliced end to end by securely knotting. The stitches along each seam shall be sufficiently tight to close the gap between the adjacent pieces of geogrid. The braid material shall be stitched through each pair of apertures along each seam at least once. The spacing of stitches shall be reasonably uniform at approximately 6 (minimum) stitches per foot along the entire length of each seam.

Section31 34 10 Page 5

3.2.3 Lifting Hoops

Lifting hoops shall be formed when the extended bottom panel is folded over to become the top panel of the mat. Sufficient grid shall be included in the panel to leave a lifting hoop if at least 12-inches.

3.2.4 Geotextile Inside SF Mattresses

The inside bottom of the SF marine mattresses shall be lined with one continuous piece of geotextile. Each individual compartment of the marine mattresses shall be lined with one continuous piece of geotextile. The completed mattresses shall consist of stone-filled compartments in which the stone is completely wrapped, top, bottom, sides, ends, diaphragms (both sides), in geotextile. Fabric overlaps shall occur along the top of each compartment and shall be a minimum of one foot. All fabric that is torn or punctured, prior to filling, shall be replaced by the Contractor at no additional cost to the Government.

3.2.5 Extensions

The 2-foot geogrid extension shall be attached to the SF marine mattresses as indicated on the contract drawings. Geotextile shall be attached to a portion of the underside of the mattress and the geogrid extensions utilizing fasteners spaced a maximum of 12 inches apart. The geotextile shall be one continuous piece. The geotextile shall be attached to the required portion of the underside of the mattress and the mattress's extension by the manufacturer at the location of the manufacture of the mattresses.

3.2.6 Filling with Stone

During stone filling operations, the Contractor shall take care to protect the mattresses and geotextile from all damage such as crushing, breaking, excessive bulging, tearing, etc. by use of wood forms. Stone filling operations shall carefully proceed with placement by hand or machine to assure a minimum of voids between the stones and to avoid deformation throughout the filling process. The maximum height from which the stone may be dropped into the basket units shall be 1 foot. The stone shall be overfilled to allow for raking the stone level with the top of the mattress.

3.2.7 Closing Mattresses

The mattresses shall be closed over the stone as recommended by the manufacturer. Mattress lids shall be attached to the diaphragms of the mattresses using braid with half hitches and a knot spaced 6 to 9 inches apart. Mattress lids shall be secured to the perimeter in a like manner with the braid passing through each set of apertures at least once.

3.3 PROTECTION OF SF MATTRESSES DURING TRANSPORTATION

The Contractor shall utilize some method, e.g. precast concrete blocks, to protect the edge and corners of the mattresses during transportation.

3.4 INSTALLATION OF MATTRESSES

Mattresses shall be set to the required lines and grades as shown on the contract drawings. Adjacent mattresses shall be placed on the extension of

Section31 34 10 Page 6 grid attached to each mattress and shall abut each other along their entire perimeters, in order to obtain a monolithic structure.

The space between adjacent mattresses shall be no greater than 4 inches.

The procedure used in placement of the units shall be in accordance with the recommendations of the mattress fabricator and as approved by the Contracting Officer. For lifting of each unit, a spreader beam and / or spreader bars shall be used in a manner that the unit is not subjected to severe bending or distortion and that the top and bottom layers of the mattress material are tensioned uniformly across their width. Units should generally be lifted from a horizontal position. Personnel shall stay clear of the area beneath units and rigging during lifting.

3.5 TOLERANCES

The finished surface shall not deviate from the lines and grades shown by more than +/- 0.5 feet vertically nor more than +/- 1.0' in the laterally.

Tolerances are measured perpendicular to the indicated lines on the contract drawings. Extreme limits of the tolerances shall not be continuous in any direction for an area greater than 200 square feet of the structure surface

3.6 REPAIRS

Damaged geogrid shall be repaired by placing a geogrid patch over the damaged area such that it overlaps onto the acceptable geogrid material by at least one foot in all directions; the perimeter edges of the patch shall be attached to the mattress in accordance with the seaming requirements, above. Damaged braid shall be repaired by installing a new braided seam in accordance with above, and extending at least one foot in either direction beyond the location of the damaged braid.

3.7 SURVEY REQUIREMENTS

The Contractor shall submit, for approval, his proposed real-time method for confirmation of the placement location and elevation (all four corners) of the SF mattresses. This information shall be available immediately and simultaneously to the Contractor and the Government. COR approval of the location and elevation of each mattress is required prior to the Contractor commencing placement of the next mattress.

3.8 CONTRACTOR QUALITY CONTROL

The Contractor shall conduct an inspection of each fabricated mattress prior to and after filling with stone. The results of these inspections shall be documented in the daily Quality Control reports required under Section 01 45 01 CONTRACTOR QUALITY CONTROL.

#.1 MEASUREMENT AND PAYMENT

3.9 Mobilization and Demobilization

Refer to Section 03 30 00 REMOVALS AND CONCRETE FOUNDATION, paragraph

MEASUREMENT AND PAYMENT.

3.10 Stone Filled (SF) Marine Mattresses

The work specified for providing the stone-filled marine mattresses will be measured for payment by the square yard of marine mattress satisfactorily

Section31 34 10 Page 7 placed. All costs, in connection with marine mattresses satisfactorily placed and accepted, shall be included in the contract unit price for Bid Item "Stone-Filled (SF) Marine Mattresses." Deductions from those quantities will be made for mattresses placed outside the construction tolerances specified herein. The determination as to whether the mattresses have been satisfactorily placed in the required location and at the required elevation shall be made utilizing a real-time survey method as specified in Section 01 32 10 SURVEY REQUIREMENTS.

Section31 34 10 Page 8

SECTION 31 36 00

STONE

PART 1 GENERAL

1.1 SCOPE

The work covered by this section consists of furnishing all labor, materials, and equipment, and performing all operations required for repair of the Reedy Point North Jetty as specified herein and shown on the drawings. The work includes the purchase, handling, transportation and placing of new materials, as well as, the rehandling of existing stone.

1.2 REFERENCES

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

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM C 127 (2007) Test Method for Specific Gravity and Adsorption of Coarse Aggregate

ASTM C 131 (2003) Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

ASTM C 295 (2008)Recommended Practice for Petrographic Examination of Aggregates for Concrete

ASTM D 5312 (2004) Evaluation of Durability of Rock for Erosion Control Under Freezing and Thawing Conditions

U.S. ARMY CORPS OF ENGINEERS (USACE)

1.3 SUBMITTALS

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

submittals having an "FIO" designation are for information only. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-07 Cerificates

General Work Plan; G,DO.

The procedures proposed for the accomplishment of the work specified in this section shall be submitted a minimum of 14 days prior to the scheduled commencement of the work. The procedures shall provide for safe conduct of the work, and careful removal and disposition of materials. The procedures shall include a detailed description of the personnel, materials, equipment, and methods to be used for each operation, including, but not limited to:

excavation; transporting, handling, storing, and placing the stone-filled

Section31 36 00 Page 1 marine mattresses, underlayer stone, graded riprap and capstone. The work plan shall include a detailed description of personnel, equipment and methods proposed for use when removing, classifying, weighing, and stockpiling both new stone and existing stone for reuse. The work plan shall include a detailed description of personnel, equipment and methods proposed for use to ensure capstone meets requirements specified herein. Method of weighing the rehandled stone and locations of various stockpiles shall be described. The work plan shall include proposed procedures (and frequency of same) for verification that contract requirements have been satisfied (including layer thicknesses and lateral and vertical alignment) by utilization of divers, hydrographic and/or topographic surveys, and/or other methods proposed and/or required per these specifications for this purpose.

Stone Source and Records; G,DO.

The proposed source of each size of stone specified herein shall be submitted for approval by the Contracting Officer no less than 14 days in advance of delivery of material to the work site.

The test data specified herein for those sources shall be submitted. In the event such data is unavailable, the Contractor shall procure the services of a Corps of Engineers-validated testing laboratory to perform the required acceptance tests. The results of all acceptance tests shall be furnished to the Contracting Officer at least 30 days prior to the delivery of the stone to the work site. All testing shall be entirely at the Contractor's expense.

The Government will visit the proposed quarry(s) to inspect rock quality, weight, and dimensions at least 14 days before any stone delivery to the work site.

Qualifications of Contractor; G,COR.

Qualifications of contractor completing the contract work shall be provided.

Qualifications of the specific team of employees assigned to the contract work, particularly the crane/equipment operator placing the stone and mattresses.

Record Drawings; G,COR.

The Contractor shall keep a careful record during the progress of the work of all changes and corrections from the layout shown on the contract drawings. The Contractor shall document such information on one set of record drawings promptly, but in no case less than on a weekly basis. The record drawings shall be submitted to the Contracting Officer at the conclusion of the contract period.

Gradation Curve; G,DO.

The Contractor shall submit gradation curves for the specified range of materials superimposed with the proposed stone gradation. Gradation curves shall be submitted for approval 14 days prior to the delivery of any stone. Gradation curves shall be included for each stone type according to stone classification specified in Paragraph 2.1.3 for Contractor information and use.

Plant Slips; G,COR.

The Contractor shall submit a plant slip to the Contracting Officer indicating the delivery time, plant name and address, the weight of

Section31 36 00 Page 2 material delivered, the gradation, and the slip shall be signed by the inspector or other designated person at the plant for each load of stone delivered to the work site at the time of delivery.

The contractor's inspector or any other designated person shall physically inspect the delivered stone, separate unsuitable stone and accept the responsibility to replace any quantity of stone rejected by the Government's Inspection Team. If any quantity of unsuitable stone is placed on the jetty, the contractor is responsible for removing it and the Contracting Officer shall withhold appropriate (partial) payment.

1.4 TESTING

The following tests will be used by the Government to determine the acceptability of the stone sources selected by the Contractor.

PROPERTY TEST METHOD ACCEPTABLE TEST RESULTS

Petrographic ASTM C 295 Fresh, interlocking, crystalline, with few vugs, no clay minerals and no soluble minerals.

Specific Gravity and Absorption ASTM C 127 Minimum Unit Weight (dry) of 165 pounds per cubic foot. Absorption less than 1%.

Abrasion Resistance ASTM C 131 Less than 20% loss for 500 revolutions.

Freezing/ Thawing ASTM D 5312 Less than 10% loss (See Figure 1 for number of cycles)

Additional testing shall be required if results from the tests, specified above, are close to the limits of acceptability. In the event test reports are not available, as in the case of newly operated sources, the Contractor shall perform such tests as are necessary to determine the acceptability of the stone for use in the work. Approval of a source of stone is not to be construed as approval of all material from that source. The right is reserved to reject materials from certain localized areas, zones, strata, or channels, when such materials are unsuitable for use as determined by the Contracting Officer. Individual stones or loads or parts of loads may be rejected if material does not meet the specifications.

1.4.1 QUALIFICATIONS

The Contractor's Superintendent shall have 10 years of current experience in heavy construction in a marine environment with work similar to the work under this contract. The crane/equipment operator placing the stone and both types of mattresses shall have 10 years of current experience in stone and mattress placement in a marine environment. The experience shall be with similar size/weight of stone being placed under in this project.

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1.4.2 QUALITY ASSURANCE

An additional, dedicated Quality Assurance individual (employed by the Government) will help to ensure that both new and reused stone, proposed for use in the contract work, meets the quality, weight (and shape for capstone) requirements specified herein. This QA person will be alternately staged at the quarry and at the project site. The presence of this QA individual does not relieve the Contractor of his quality control responsibilities but will aid in the enforcement of the stone weight and quality requirements.

1.9 CALIBRATION OF SCALES

Scales shall be calibrated daily utilizing a standard known weight. The COR shall be present at each daily calibration.

PART 2 PRODUCTS

2.1 STONE

2.1.1 Source

Stone meeting the requirements of the base bid of these specifications for capstone shall be rehandled stone from the existing jetty. If Option 1 is awarded, additional capstone required shall be obtained from an off-site source. Stone meeting the requirements of these specifications for graded riprap shall be stone from an off-site source. All underlayer stone must be acquired from an off-site source. All sources must be approved by the Contracting Officer.

2.1.2 Quality

Stone shall be durable and of a suitable quality to insure permanence in the work and in the climate in which it is to be used. The stone shall be free from cracks, seams and other defects that would tend to increase unduly its deterioration from natural causes. The inclusion of objectionable quantities of dirt, sand, clay and rock fines will not be permitted. The stone density shall not be less than 165 pounds per cubic foot, except where noted herein. The density shall be based on saturated surface dry specific gravity of the stone determined in accordance with ASTM C 127. Boulders and quarried rock conforming to the above requirements may be used for the work. Neither the breadth nor the thickness of any individual stone shall be less than one-third its length.

2.1.3 Stone Gradations

2.1.3.1 Capstone

The Contractor shall rehandle the existing capstone for use in Repair Area No. 1 and Area No. 2 to the maximum extent possible. To be reused as capstone, the existing capstone shall be a minimum of 1 ton and a maximum of 2 tons.

2.1.3.2 Graded Riprap

The minimum weight of graded riprap shall be 240 pounds and the maximum weight shall be 2.25 tons. The density shall be a minimum of 165 pounds per cubic foot, surface-dry basis, and it shall be a maximum of 15% by weight quarry spalls. At all locations, the graded riprap shall be well graded and

Section31 36 00 Page 4 have meet the gradation requirements of PADOT R-8.

NOTE: The Contractor shall hand sort the stone if the stone does not meet the minimum sizes and gradation specified herein.

2.1.3.3 Underlayer Stone

The underlayer stone shall range in size from 150 pounds to 270 pounds.

2.1.3.4 Marine Mattress

Marine mattress shall be as specified in Section 31 34 10 MARINE MATTRESS

PART 3 EXECUTION

3.1 CONSTRUCTION METHODS

Repairs in Area No. 2 shall be completed prior to placing rehandled capstone in Area No. 1. Existing capstone requiring rehandling in excess of the quantity required for Area No. 2, shall be added to Repair Area No.

1 within the template indicated, as directed by the COR. The estimated quantity of rehandled stone available for Area No.1 is not sufficient to construct the indicated template. If Option 1 is awarded, the new capstone shall also be placed in Repair Area No. 1 within the template indicated, as directed by the COR. The remainder of work in Area No. 1, including work required by other sections, shall be completed prior to additional work in other areas due to environmental restrictions in Section 01 57 20, ENVIRONMENTAL PROTECTION. Concurrent work in other areas may be permitted with approval of Contracting Officer, provided such work does not delay completion of Area No. 1.

Repair of the jetty may be accomplished from land or water. Work from the landside will require construction of a temporary haul road as specified in Section 01 50 00 TEMPORARY CONSTRUCTION. Equipment and/or materials may be staged on barges and/or on land within the contractor limits of work indicated. The Contractor shall note that the channel bottom in the vicinity of the existing jetty may not all be soft sand. The channel bottom in this area may contain scattered riprap and capstone that has migrated from the existing jetty. This fact shall be considered when spudding a barge and conducting other construction operations. Also, barges and other equipment utilized by the Contractor shall be large enough to withstand the large wakes created by river-going vessels.

3.2 CLEARING AND EXCAVATION

Phragmites shall be cleared and excavated in the areas indicated on the contract drawings and in accordance with Section 31 00 00 EXCAVATION.

3.3 GENERAL GUIDELINES FOR PLACEMENT OF ALL STONE

Placing the stone by dumping into chutes or by similar methods likely to cause segregation of the various sizes will not be permitted. The desired distribution of the various sizes of stone throughout the mass shall be obtained by selective loading of the material at the quarry or other source, by controlled placement of successive loads during final placing, or by other methods of placement which will produce the specified results.

Rearranging of individual stones by mechanical equipment or by hand shall be performed to the extent necessary to obtain a well-graded distribution

Section31 36 00 Page 5 of stone as specified above and a reasonably even finished surface. Stones should be placed on the structure by feeling with the handling equipment to achieve contact when vision is obscured, i.e. below water, and then released.

3.4 PLACEMENT OF UNDERLAYER STONE

The underlayer stone shall be placed in 2.5 foot lifts. The larger stones shall be well distributed and the entire mass of stones in their final position shall be roughly graded to conform to the gradation requirements specified herein. The finished surface shall be free from objectionable pockets of small stones and clusters of larger stones.

3.5 PLACEMENT OF GRADED RIPRAP AND CAPSTONE

The graded riprap and capstone shall be placed to the final elevation as shown on the drawings. The stone shall be placed in such a manner as to produce a minimum practicable percentage of voids in the surface. The stone shall be placed so that the finished surface is within a tolerance of -0 to +6 inches from the slope lines and grades shown on the drawings, except that the extreme of such tolerance shall not be continuous over a distance greater than 200 feet.

3.6 SURVEY REQUIREMENTS

The Contractor shall be responsible for conducting all surveys as required to demonstrate that the construction is in compliance with the specified tolerances and the lines, grades, and elevations shown on the drawings.

These surveys shall consist of cross-sections taken before and after placement of each type of stone. The two sets of cross-sections shall be taken at the same locations as the cross-sections shown on the contract drawings. The cross sections shall be taken perpendicular to the centerline of the jetty and shall extend at least 10 feet beyond the interior and exterior toe of the jetty.

Survey requirements, and cross section submission is essential to progress payments, even though payment schedule is per tons. Also, overbuild quantities, over top and side slopes, will not be allowed.

3.7 MEASUREMENT AND PAYMENT

3.7.1 Mobilization and Demobilization

Refer to Section 03 30 00, REMOVALS AND CONCRETE FOUNDATION, paragraph

"MEASUREMENT AND PAYMENT".

3.7.2 Rehandled Capstone

The work specified in this section for the rehandling of existing capstone for reuse as capstone, will be measured for payment by the number of tons (2,000 lbs.) of material satisfactorily rehandled, placed and accepted.

Payment will be made at the contract unit price for Bid Item "Recovery - Rehandled Capstone". Payment for this bid item shall include the labor and equipment required to rehandle and place the existing capstone.

3.7.3 Capstone

The work specified in this section for capstone will be measured for payment by the number of tons (2,000 lbs.) of new material satisfactorily

Section31 36 00 Page 6 placed and accepted. Payment will be made at the contract unit price for Option Bid Item "Recovery - Capstone". Payment for this bid item shall include the labor and equipment required to place the capstone and any required material testing.

3.7.4 Graded Riprap

The work specified in this section for the graded riprap will be measured for payment by the number of tons (2,000 lbs.) of new riprap satisfactorily placed and accepted. Payment will be made at the contract unit price for Bid Item "Recovery -Graded Riprap." Payment for this bid item shall include the labor, equipment, and materials required to provide and place the graded riprap and any required material testing.

3.7.5 Underlayer Stone

The work specified in this section for underlayer stone will be measured for payment by the number of tons (2,000 lbs.) of new core stone material satisfactorily placed and accepted. Payment will be made at the contract unit price for Bid Item "Recovery - Underlayer Stone". Payment for this bid item shall include the labor, equipment, and materials required to provide and place the underlayer stone and any required material testing.

Section31 36 00 Page 7