W912BU-16-B-0001_Specs-AM2.pdf

Offers 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 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 your 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.

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended, is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

CHECK ONE 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)

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.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

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

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

NSN 7540-01-152-8070

Previous edition unusable

BEACH NOURISHMENT, REHOBOTH BEACH AND DEWEY BEACH, DE

THIS AMENDMENT EXTENDS THE BID OPENING DATE TO 3 JUNE 2016 AT 1:30 P.M.

(CONTINUED)

E5CTCSGF

US ARMY ENGINEER DISTRICT, PHILADELPHIA

WANAMAKER BUILDING, 100 PENN SQUARE EAST

PHILADELPHIA, PENNSYLVANIA 19107-3390

US ARMY ENGINEER DISTRICT, PHILADELPHIA

POC: SANDI FLETCHER

WANAMAKER BUILDING, 100 PENN SQUARE EAST

PHILADELPHIA, PENNSYLVANIA 19107-3390

9A. AMENDMENT OF SOLICITATION

NO.

W912BU-16-B-0001

05/26/2016

9B. DATED (SEE ITEM 11)

05/02/2016

X

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Amendment No. 0002

IFB W912BU-16-B-0001

14. DESCRIPTION OF AMENDMENT (continued)

a. REQUESTS FOR INFORMATION (RFI) WITH RESPONSES: RFI’s with responses, annotated Amendment No. 0002, are attached to this amendment.

b. SECTION 00 73 42 – SIEVE CURVES: Please add pages 00 73 42-151 through 00 73 42-162 to Section 00 73 42, annotated Amendment No. 0002, attached hereto.

c. TECHNICAL SPECIFICATIONS:

(1) Section 01 57 20 – ENVIRONMENTAL PROTECTION: Please delete pages 01 57 20-12 and 01 57 20-13 in their entirety and substitute the revised pages of the same numbers, annotated Amendment No. 0002, attached hereto.

(2) Section 35 31 00 – BEACHFILL: Please delete Section 35 31 00 in its entirety and substitute the revised Section 35 31 00, annotated

Amendment No. 0002, attached hereto.

d. DRAWINGS:

(1) Please delete the drawing C-402 in its entirety and substitute the revised drawing of the same number, with the latest revision date of 25 May 2016, attached hereto.

e. Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No. 0002. Failure to acknowledge all amendments may be cause for rejection of the bid.

RFI# Request for Information Response

Please define the slopes of the contract borrow area. Does the hatched line on Sheet C‐402 identify the top or bottom of the slope limits?

Hatched line is limit of borrow area. Please reference Specification Section 35 31 00, Paragraphs 1.5.2 and 1.5.2.1.

Page C‐402 of the contract plans that “the maximum allowable depth for dredging shall not exceed ‐50’ NAVD 88”. Please clarify if material below this depth can be disturbed as long as a post dredge survey shows no removal below ‐50’.

Maximum dredging depth is as shown on Sheet C‐402 and as described in Specification Section 35 31 00, Paragraph

1.5.2.1. See Amendment No. 0002.

Please provide the maximum dredge depth of the borrow area within the borrow area permit.

Special Condition #5 in the Section 401 Water Quality Certificate from the Delaware Department of Natural Resources and Environmental Control (WQ‐471/15) states that the dredging depths authorized for the approved borrow area are 10 feet deeper than the surrounding bathymetry.

4 Please provide the boring log for KHV‐76.

Boring KHV‐76 has been removed. See Amendment No. 0002.

5 Please provide the sieve information for KHV‐76 and all of the BVC borings.

Boring KHV‐76 has been removed. See Amendment No. 0002 for additional sieve information.

6 Please provide XYZ data for the borrow area. XYZ data is not provided until after award. Bid as shown.

7 Please provide XYZ data for both beachfill areas. XYZ data is not provided until after award. Bid as shown.

8 Has this contract’s borrow area (B2010) ever been dredged?

Not to the Government's knowledge. See Amendment No. 0002.

Drawing C‐402 shows seabed contours of the Borrow Area B referenced to NAVD88. The logs of vibracores in and near the borrow area from O’Brien & Gere give mudline elevations for the cores which are also referenced to NAVD88. The elevations on logs do not match the survey even though both are referenced to the same elevation datum. Elevations on the logs are, in general, 5 to 10 feet above what is indicated by the survey (vibracores considered are KHV‐169 to ‐175, KHV‐178, BVC‐1 to ‐4).

a. Please explain the reason for these differences.

b. Please advise what surface to use as existing seabed (survey or vibracores).

c. If advised to use the survey, please advise if the top of vibracore elevation should be adjusted to match the survey surface.

d. If advised

See Paragraph 1.5.1 in Specification Section 35 31 00 and Note 2 on Sheet C‐402.

10 Please clarify NMFS observers requirements for this project.

There are no NMFS requirements under this contract. See Amendment No. 0002

Please confirm that it is the government’s intent for options 9, 10 and 11 to extend the length of the beach 3,000 feet. If this is the intent, please provide a sample cross section for the extension.

Yes, beach will be extended approximately 3000 feet.

Drawings will be provided after award.

When does the government intend to issue the Notice to Proceed? After bonds are received and approved, the Government intends to issue the NTP.

Amendment 1, Section 01 35 30 Paragraph 3.4 e: MEC’s cannot be handled by Contractor personnel. Please confirm that the OESS and Government supplied MEC personnel will handle any MEC’s found.

OESS and Government supplied MEC personnel will handle any MEC's found in the discharge screening devices.

When MEC is found with the fill material it is an indication of a failure(s) of the Contractor's screening system/procedures and it is their responsibility/liability to now locate all MEC items in the fill material with "qualified UXO" personnel per DDESB TP 18. These "qualified UXO" personnel are permitted to handle located MEC items as appropriate. The OESS will arrange for the disposal of the MEC items located by the "qualified UXO" personnel.

REQUESTS FOR INFORMATION with RESPONSES Solicitation No. W912BU-16-B-0001

RFI# Request for Information Response

Amendment 1, Section 01 35 30: Please confirm that all OESS/MEC personnel will be supplied by the Government and that the only training needed for Contractor personnel is the short course training/presentation which is given by a Government supplied OESS prior to work.

See above answer on OESS/MEC personnel. The MEC Safety and Recognition Training will be provided by the Government. Additional training will be required in the event of MEC being found with the fill material and "qualified UXO" personnel are required to locate and, most likely, centrally locate the MEC items for later disposal. This additional training would be specific to the site and would be based on the extent and breadth of the response required to ensure all MEC items potentially placed with the fill material are located and removed (linear footage, location {surf vs berm}, depth, cu yds of material, type(s) of MEC expected, required equipment, and etc.)

Amendment 1, Section 01 35 30: Regarding the Contractors responsibility, is the supplied DDESB Technical Paper 18 dated 1 September 2015 for the Contractors information only?

DDESB TP 18 dated 1 Sep 2015 is the most current document that provides the required qualifications for personnel performing MEC work under DoD auspices. Any Contractor personnel required to perform MEC work (i.e.

locating and stockpiling MEC from fill material) must meet the DDESB TP 18 requirements.

This project is currently scheduled to bid in one week on June 1st. We request the bid opening be postponed 2 weeks to June 15th to allow ample time to review government responses to outstanding questions that directly affect the dredging methodology and footprint of the project.

The Bid Opening will be postponed until June 3, 2016. See Amendment No. 0002.

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Section 00 73 42 Page 162 orange plastic fencing. All Contractor personnel, vehicles and equipment shall remain outside the buffer zones. Absolutely no access is permitted within these zones. The Contractor shall be responsible for taking any additional action, as directed by the COR, to ensure adequate protection of the nests and chicks. Piping plovers and other state endangered birds have the potential to nest anywhere within the contract limits. The Contractor shall be prepared to take all necessary action to ensure protection of these species, regardless of the nesting location within the contract limits or overlapping buffer zone if outside of contract limits, in accordance with the specifications herein.

3.7.2.1 Establishing Buffer Areas

If a piping plover or other state endangered beach nesting bird is observed by a Federal or State Fish and Wildlife agency, the Corps of Engineers, or the Contractor, the Contractor shall immediately notify the project biologist, through the COR, to determine necessary protective actions, and a temporary buffer shall be established. Prior to 15 May, a temporary buffer of 300 meters shall be established around areas newly occupied by foraging adult plovers and other state endangered beach nesting birds, and plovers and other state endangered beach nesting birds displaying territorial behavior. From 15 May to 15 August, the temporary buffer shall be 1,000 meters. If nesting behavior (i.e. active scrapes, courtship or copulation) is confirmed, or if nests or chicks are found, a buffer sufficient in size to prevent disturbance to nesting birds and/or to protect unfledged broods will be established based on site-specific conditions and will remain in effect until the conclusion of breeding activity. If birds are not displaying any signs of nesting behavior (i.e., are likely to be non-nesting birds or spring migrants) or are no longer sighted after observations are conducted over one week, the temporary buffers will be removed. Once piping plover and other state endangered beach nesting birds nests have hatched and chicks are mobile (possibly as early as approximately 15 May), no construction shall take place within 1,000 meters of chick foraging areas until after the chicks have fledged.

All construction related activities (e.g., vehicle use, surveying, framing, equipment set-up, etc.) shall adhere to the appropriate buffer area restrictions. Buffer areas shall extend from the water's edge landward to the furthest seaward extent of the natural or man made feature which would prohibit piping plover chicks from traversing the area (e.g., dunes, boardwalk or bulkhead).

3.7.2.2 Surveying Operations

When conducting beach profile surveys, the Contractor shall be cognizant of nesting areas, and shall not enter any fenced-off areas for any reason unless authorized by the DNREC or the USFWS. If a sled is being used during the survey efforts, it shall remain below the water line at all times. The Contractor shall notify the Contracting Officer if a sled will be used during the surveying operations, prior to the start of survey operations.

3.7.3 Whale Monitoring

3.7.3.1 Avoidance

Dredges and vessels shall not intentionally approach whales closer than 100 yards when in transit. If listed species are present within a distance equal to 500 yards, then speed shall be reduced to 4 knots or less unless

Section 01 57 20 Page 11 precluded by safety considerations. Unless positively identified as another whale species, any large whale shall be considered a suspected right whale, especially if one has been recently sighted by the vessel, or if the vessel is in an area where right whales could be present. (Deleted)

3.7.3.2 Monitoring

Monitor for the presence of whales during all dredging activities in this contract. Record the presence of whales on the Daily Report of Operations form. Notify the Contracting Officer immediately following the sighting of a whale.

3.7.4 Sea Turtle and Atlantic Sturgeon Requirements

3.7.4.1 Protection and Inspection

Take all necessary actions to ensure protection of sea turtles and Atlantic sturgeon. Ensure that all employees are aware of the potential presence of protected species. The Government will provide the Contractor with pamphlets and ID cards to aid in the identification of sea turtles or Atlantic sturgeon that may be encountered during contract activities.

b. Dredges and vessels should not intentionally approach sea turtles closer than 100 yards when in transit. If listed species are present within a distance equal to 500 yards, then speed should be reduced to 4 knots or less unless precluded by safety considerations. Dragarms of hopper dredges shall not be operated while in the water column, to minimize potential impacts to sea turtles and Atlantic sturgeon. Operation should begin when the dragarm reaches the sediment and end before the dragarm is removed from the sediment. Inspect the dragarm for impinged sea turtles or Atlantic sturgeons by someone familiar with identifying these species each time the dragarm is brought to the surface. Notify the COR immediately if a sea turtle or Atlantic sturgeon is observed during dredging or found to be impinged on the dragarm. Remove the impinged animal and place it in cold storage until further direction is received from the Government. (Deleted)

In order to prevent sea turtles or Atlantic sturgeon from becoming entrained in the dredge, install screens with openings not to exceed 4-inches by 4-inches on dredge water intake ports that do not have MEC screens.

Inspect MEC baskets on the beach at a minimum of every 12 hours by someone knowledgeable about listed species identification. Photograph biological material that may be part of a sea turtle or sturgeon and retain it in cold storage until disposal can be discussed with the COR. Immediately notify the COR if any biological material is found that may be part of a sea turtle or sturgeon.

3.8 PREVIOUSLY USED EQUIPMENT

Clean all previously used construction equipment prior to bringing it onto the project site. Ensure that the equipment is free from soil residuals, egg deposits from plant pests, noxious weeds, and plant seeds. Consult with the USDA jurisdictional office for additional cleaning requirements.

3.9 MAINTENANCE OF POLLUTION, EROSION AND SEDIMENTATION CONTROL FACILITIES

Maintain all pollution, erosion and sedimentation control facilities required for use under this contract as long as the operations creating the

Section 01 57 20 Page 12 particular pollutant are being carried out or until the material concerned has become stabilized to the extent that pollution is no longer being created.

3.10 TRAINING OF CONTRACTOR PERSONNEL

The Contractor's personnel must be trained in all phases of environmental protection and pollution control. Conduct environmental protection/pollution control meetings for all personnel prior to commencing construction activities. Additional meetings must be conducted for new personnel and when site conditions change. Include in the training and meeting agenda: methods of detecting and avoiding pollution;

familiarization with statutory and contractual pollution standards;

installation and care of devices, vegetative covers, and instruments required for monitoring purposes to ensure adequate and continuous environmental protection/pollution control; anticipated hazardous or toxic chemicals or wastes, and other regulated contaminants; recognition and protection of archaeological sites, artifacts, wetlands, and endangered species and their habitat that are known to be in the area.

3.11 POST CONSTRUCTION CLEANUP

Clean up all areas used for construction in accordance with Contract Clause: "Cleaning Up". Unless otherwise instructed in writing by the Contracting Officer, obliterate all signs of temporary construction facilities such as haul roads, work area, structures, foundations of temporary structures, stockpiles of excess or waste materials, and other vestiges of construction prior to final acceptance of the work. The disturbed area must be graded, filled and the entire area seeded unless otherwise indicated. The area shall be restored to near natural conditions which will permit the growth of vegetation thereon.

3.12 MEASUREMENT AND PAYMENT

No separate measurement or payment will be made for the work specified in this section. Payment of fees associated with environmental permits, application, and/or notices obtained by the Contractor, and payment of all fines/fees for violation or non-compliance with Federal, State, Regional and local laws and regulations are solely the Contractor's responsibility.

All costs associated with this section shall be included in the costs of all the bid items.

-- End of Section --

Section 01 57 20 Page 13

SECTION 35 31 00

BEACHFILL

PART 1 GENERAL

1.1 SCOPE

The work covered by this section consists of furnishing all labor, materials, plant and equipment and performing all operations required for removal of the beachfill material from the borrow area located offshore, as shown on the drawings, and placing the material on the beach within the limits as specified and shown on the drawings.

1.2 REFERENCES

The publications listed below form a part of this section to the extent referenced:

ASTM INTERNATIONAL (ASTM)

ASTM D2487 (2011) Soils for Engineering Purposes (Unified Soil Classification System)

ASTM D422 (1963; R 2007; E 2014; E 2014)

Particle-Size Analysis of Soils

U.S. ARMY CORPS OF ENGINEERS (USACE)

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

EM 1110-2-1003 (2002; Change 1 April 2004) Hydrographic Surveying

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

33 CFR 156 (2003) Navigation and Navigable Waters, Oil and Hazardous Material Transfer Operations

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:

NOTE: Any submittals classified as "SD-01 Preconstruction Submittals" are submittals required to be submitted to, and approved by, the office indicated prior to mobilization to the contract work site. 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-01 Preconstruction Submittals

Borrow Area; G,COR

Section 35 31 00 Page 1

Submit a map of the borrow area, plotted to scale, with the Contractor-assigned stationing and range information, furnished in printed form and the following two electronic formats: (1) either ESRI ArcGIS 10.x Shapefile format (.shp), including all components and extensions, or in a Spatial Data Standard compliant geodatabase; and (2) Portable Document Format (PDF) files containing PDF layer maps.

Debris Prevention Plan; G,COR

Devise a means and a monitoring program/method to ensure that debris (boulders, cobbles, clay balls, and other debris) is not deposited upon the beach and buried by beachfill material, and submit proposed program/method for approval.

Work Plan; G,COR

Submit a plan for removing the material from the borrow area and placing it in the areas shown on the drawings. The plan shall show the pipeline layout, details of ramps over the pipeline, safety fence locations, personnel to be used to patrol closed beach area, signage and shall include the surveying procedures, methods, and equipment for topographic surveys, hydrographic surveys, and tidal monitoring, as specified in Section 01 71 23 SURVEY REQUIREMENTS. Additionally, the plan shall address the safe working wave height limits for daily work procedures.

Pumpout Plan; G,COR

If a hopper dredge is used for the contract work, submit a plan for pumpout of excavated material from the dredge to the beachfill area. The plan shall include the description, dimensions, and location of the proposed mooring facility.

Accident Prevention Plan; G,DO

Submit a plan for accident prevention in compliance with all provisions of Contract Clause: ACCIDENT PREVENTION, Section 01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS, and emphasize the protection and safety of the general public using the adjacent beach areas in the plan. Provide details of any barricades, warning signs, and equipment proposed for use in the implementation of the accident prevention plan.

Vessel and Equipment List; G,COR

Submit a complete list of all vessels and equipment to be used during the contract, including all dredging plants, supporting vessels, and equipment. The vessel and equipment list shall contain the types, the numbers of each, the draft of each, and all other pertinent information. Include the capacity of all scows in the equipment list. List the survey vessel, survey crew, type of survey equipment, and software that may be used.

Grade Stake Recovery Plan; G,COR

Submit a plan describing his procedures that will be used to ensure that all grade stakes placed on the beach during

Section 35 31 00 Page 2 construction are subsequently removed. Grade stake removals and lost stakes shall be included along with the Quality Control Report.

SD-06 Test Reports

Daily Report of Operations; G,COR

Prepare, maintain, and submit daily for approval, Daily Report of Operations forms, and furnish signed copies thereof with the Quality Control Reports required in SECTION 01 45 00 QUALITY CONTROL, to the Contracting Officer. Daily Report of Operations forms shall be faxed daily to the U.S. COE Philadelphia District Office. Copies of the Daily Report of Operations form to be used are attached at the end of this section. Submittals for the Daily Report of Operations are available to the public.

Test Reports; G,COR

Copies of all laboratory and field test reports shall be submitted to the Contracting Officer within one week after completion of each test.

Daily Dredgehead Positioning Records; G,COR

For all dredging and for each dredge employed under this Contract, utilize a computerized positioning system capable of representing the horizontal and vertical position of the hopper draghead, clamshell bucket, and/or hydraulic cutterhead at any given time throughout the dredging cycle. Record horizontal and vertical positioning of the draghead or cutterhead at intervals not greater than one minute in duration. Submit horizontal and vertical (x,y,z) positions of the dredge draghead, bucket, or cutterhead, in an approved electronic format. Commercially available systems such as those offered by companies under the registered trademarks of Dredgepak, Winops, or similar proprietary systems developed by the Contractor would be considered satisfactory. The system shall produce a record of the working locations, horizontal and vertical, of the draghead or cutterhead, in a continual display and in a submittal satisfactory to the COR. Submit this information daily at the same time as the Daily Operations Report.

SD-07 Certificates

DGPS Positioning

Daily submission of recorded dredge position data.

Dredge Position Map

After every 5 days of dredging, submit a map of the borrow area, to scale, with the Contractor-assigned stationing and range information, along with the draghead or cutterhead positioning data indicating the location of the dredge and the time period associated with a set of daily recorded positions, furnished in printed form and Portable Document Format (PDF) files containing PDF layer maps.

Section 35 31 00 Page 3

Fuel Usage

Submit on or before the last day of each month, a report listing the totals of fuels consumed by the dredging plant and supporting vessels. Separately list the quantities of each type of fuel used. The reports shall cover the period from the 25th of the preceding month to the 25th of the current month.

Adjusted Construction Template; G,DO

Documentation shall include the location, by range of survey baseline stations, for which the request is being made.

1.4 DIFFERENTIAL GLOBAL POSITIONING SYSTEM (DGPS) EQUIPMENT

The Contractor must have a differential GPS, and shall conduct his survey work in accordance with the U.S. Army Corps of Engineers Hydrographic Surveying Manual EM 1110-2-1003. Provide real time positioning of the dredge on a computer screen, during dredging, and have the capability of playback in 15 minute intervals. Record DGPS positioning of the dredge on a disk every 15 minutes and submit to the Contracting Officer on a daily basis. Submit data in ESRI ArcGIS 10.x Shapefile format (.shp), including all components and extensions, or in a Spatial Data Standard compliant geodatabase. Real time positioning data shall include northing, easting, elevation, date and time of information.

1.5 LOCATION AND CHARACTER OF BORROW MATERIAL

1.5.1 Character of Borrow Material

The character of the material in the offshore borrow area is believed to be as indicated by the results of Government-conducted sampling and analysis.

Vibracore logs, and sieve curves are presented in Section 00 73 41, 00 73 42 respectively. The locations of vibrational cores, from which samples were extracted are shown on the drawings. These locations are in or near the limits established by the drawings for the specified borrow area.

The information depicted on the vibrational core logs represents the results of subsurface explorations made on the dates indicated and can only be considered as conditions existing at that time and at the specific location where retrieved. Due to complex geologic conditions within the coastal environment, boulders, cobbles, gravel, silt and clay seams may be encountered as well as sand. The beachfill must be composed predominately of sand as defined by ASTM D2487-06. Boulders, cobbles and coarse gravel defined by the same designation are prohibited from being part of the beachfill. Fine gravel will be limited to less than 10 percent of the beachfill. Manmade materials are also prohibited from being part of the beachfill. No additional compensation will be provided, for routine moves of the dredge(s) within the limits of the borrow area(s) shown; moves required to ensure compliance with these specification for beachfill content and/or to optimize production are routine.

Munitions and explosives of concern (MEC) may also be encountered in the borrow area. See Section 01 35 30 MUNITIONS AND EXPLOSIVES OF CONCERN (MEC) CONSTRUCTION SUPPORT for all requirements related to potentially encountering MEC in the borrow area.

Section 35 31 00 Page 4

1.5.2 Location of Borrow Area

The location of the borrow area and the limits to which removal of material is permitted is shown on the drawings.

1.5.2.1 Maximum Allowable Depth for Removal

The maximum allowable depths for removal of material from the borrow area is as indicated on the drawings. Unless specifically directed by the Contracting Officer, no payment will be made for material removed from below this depth, plus 1-foot overdepth, or from outside the borrow area limits.

1.5.3 Nature of Borrow Area

The surveys of the borrow area shown on the drawings are the most recent survey available. The borrow area conditions are dynamic in nature.

Therefore the contours shown on the drawings may not be an accurate representation of the depths and conditions existing at the commencement of dredging operations under this contract.

1.5.4 Before- and After-Dredging Surveys

Before- and after- dredging surveys shall be conducted as specified in Section 01 71 23 SURVEY REQUIREMENTS and Special Clause: QUANTITY SURVEYS.

1.5.5 Commercial Fishing Equipment

The Contractor shall be aware that there is a potential for commercial fishing equipment (ie. conch pots, black seabass pots, and commercial gill nets), marked by buoys, that could be deployed within the borrow area at the time of dredging. Exercise caution to avoid this gear to the maximum extent practicable. If the gear cannot be avoided, the Contractor may proceed at risk to his own equipment. The Corps of Engineers or the sponsor (DNREC) or both will attempt to notify the commercial fishermen of the dredging operations and have them remove their fishing equipment prior to dredging.

1.6 SITE CONDITIONS

Bidders are expected to examine the site of the work in accordance with Contract Clause: SITE INVESTIGATION AND CONDITIONS AFFECTING THE WORK to determine the conditions affecting their operations. The entire work site is designated as a hard hat area in accordance with EM 385-1-1. Access to the contractor staging area and beachfill site is available at the locations shown on the drawings. In the areas where boardwalk is located within the Contractor's Work Limit, there shall be no staging of equipment or stockpiling of material on the boardwalk.

1.7 RESTRICTIONS ON BEACHFILL OPERATIONS

Close the beach, utilizing temporary fencing, barricades, and signage, in maximum 1000 foot sections, to allow placement of beachfill. After acceptance of a section, the Contractor will be permitted to advance the closed section of beach. All other sections of the beach, except staging areas, shall remain open to the general public. Ramps over the pipeline shall be provided at all street ends and at boardwalk entrances to the beach to allow public access to the ocean. The ramps shall be 6 feet wide (measured along the pipeline), with 3:1 slopes and one foot minimum of

Section 35 31 00 Page 5 cover over the pipeline. Ensure that any movement of pipeline or equipment is conducted with recognition to the public presence, in accordance with the approved Accident Prevention Plan. Coordinate all beach closings with the Beach Patrol, Police and Fire Departments to ensure access by emergency vehicles.

1.7.1 Shutdown of Operations

On the following dates the Contractor shall be required to shutdown all operations:

- July 4th weekend: July 1 through July 4, 2016 (Friday through Monday)

- Labor Day weekend: September 2 through September 5, 2016 (Friday through Monday)

1.8 Dedicated Public Safety Personnel

Provide a minimum of two public safety persons to patrol the perimeter of the closed beach area and direct the public to not enter the construction area. These dedicated public safety personnel shall be provided between 8:00 am and 5:00 pm, during active construction operations. Outside of these hours, one public safety person regardless of construction status.

Public safety personnel shall have no other duties.

1.9 DEBRIS PREVENTION

Propose, and submit for approval, a Debris Prevention Plan indicating the method to ensure that debris (either dredged from the borrow area or deposited by the Contractor's personnel) is not deposited upon the beach and buried by beachfill material. A proposed monitoring program shall be included, using the Contractor's personnel, to monitor the proposed debris-prevention method's results. Debris includes cobbles, clay balls, and man-made trash and materials. Any seashells captured in outlet baskets shall be deposited in debris containers and removed from the site.

1.10 FUEL OIL HANDLING

Ensure that all fuel oil transfer operations to or from his plant comply with all applicable Federal, State, and municipal laws, codes, and regulations. Incorporate in the accident prevention plan sufficient information to demonstrate compliance with 33 CFR 156 and all other applicable laws, codes, and regulations.

PART 2 PRODUCTS

(Not Used)

PART 3 EXECUTION

All work shall be executed in accordance with the approved Work Plan, Pumpout Plan and additional requirements specified herein.

3.1 EXISTING ITEMS AND DEBRIS REMOVAL

Remove existing sand fence and posts obstructing or impeding material placement and stockpile for reuse. Remove all other debris, including man-made trash and materials from the existing beach, prior to commencing

Section 35 31 00 Page 6 work and dispose of offsite. Existing sand fence, visible debris or miscellaneous items of any kind shall not be buried with the new beachfill. Any sand fence or posts removed shall be salvaged and re-installed upon completion of beachfill operations. Replace any sand fence and / or posts which are damaged during removal, storage, and re-installation of the salvaged sand fence and posts, or damaged during beachfill work, at no additional cost to the Government.

3.2 CONSTRUCTION BASELINE

See Section 01 71 23 SURVEY REQUIREMENTS for the requirement to establish and stake and flag a construction baseline.

3.3 PRE-PLACEMENT CONDITION SURVEYS

The beachfill area conditions are dynamic in nature. Conditions existing during the preparation of this contract may not be an accurate representation of the beachfill area conditions existing at the commencement of beachfill operations. Consequently, pre-placement condition survey cross sections shall be obtained, in accordance with Section 01 71 23 SURVEY REQUIREMENTS. Upon receipt of the pre-placement surveys as specified in Section 01 71 23 SURVEY REQUIREMENTS, the Government will issue revised drawings indicating adjusted beachfill locations, template and profiles/sections. Beachfill work in any location shall not commence until these surveys for that location have been submitted and approved, and revised drawings have been issued for that location.

3.5 POST-PLACEMENT CONDITION SURVEYS

Obtain post-placement condition survey cross sections, in accordance with Section 01 71 23 SURVEY REQUIREMENTS.

3.4 MAINTENANCE OF DRAINAGE OUTFALLS

Prior to material placement, ensure that each outfall within the Contractors Work Limit drains freely at the outlet, and maintain drainage of each outfall, after material placement, for the duration of the contract.

3.5 REMOVAL OF STRUCTURES

All existing structures, with the exception of sand fence and posts, to include, but not be limited to, the volleyball poles and bases, will be removed by others.

3.6 PLACEMENT OF BEACHFILL

3.6.1 General

Beachfill material shall be placed and shaped to the beachfill template lines, grades, slopes, and elevations shown on the drawings. There shall be no pronounced ridges or wash holes in the final grades and slopes unless otherwise indicated. Beachfill lines and grades shall extend linearly between payment sections with no scallops in planform contours.

Conduct work operations so that no areas landward of the work limits shown on the drawings are disturbed. Land-based equipment shall be used for grading the beachfill material.

Section 35 31 00 Page 7

If the Contractor stockpiles material and subsequently uses land-based equipment to move the material to its final position, the Contractor shall wait 24 hours before after-surveys are conducted of that area.

3.6.2 Template Quantity

The required template placement quantity of sand between survey lines will be determined by the average-end-area method using the difference in cross-sectional area between (1) the profile surveys obtained by the Contractor before the beachfill operations in accordance with Section 01 71 23 SURVEY REQUIREMENTS and (2) the template lines shown on the drawings.

3.6.3 Bid Quantity

The bid quantity of beachfill material shall be placed to the beachfill template lines, grades, slopes and elevations as specified above, and any additional quantity in excess of the template quantity shall be placed by advancing the seaward edge of berm uniformly throughout the length of the project. (Ex. If the Bid Quantity = 400,000 CY and Template Quantity = 350,000; then 50,000 CY shall be used to advance the seaward edge of berm).

In the event that a shortage of material exists between the bid quantity and the template quantity, the seaward edge of berm shall be reduced landward uniformly throughout the length of the project.

3.6.4 Placement Tolerances

a. For placement only, a vertical tolerance of plus 0.5 feet and minus 0.0 will be permitted on the berm portion of the beach; a vertical tolerance of plus 0.2 feet and minus 0.0 will be permitted on the dune portion of the beach.

b. Adjusted Construction Template: Beachfill shall be placed to the minimum seaward edge of berm and to the foreshore slope indicated on the drawings, however, the Contractor may adjust the construction template by advancing the edge of berm seaward (at the same elevation) and modifying the foreshore slope to achieve the required placement quantity within the footprint of the beachfill template shown on the drawings. An example of an adjusted construction template is attached to this section.

c. In the event that the berm elevation, the minimum seaward edge of berm or the required placement quantities are not met, recommence beachfill operations until the requirements are met. The Contractor will not be required to recommence beachfill operations in the event of erosion and/or storm damage in areas where beachfill has been completed and the survey data demonstrates compliance with the contract requirements.

3.6.5 Payment Tolerances

For payment, there will be no vertical tolerance permitted on the berm or dune portions of the beach. Payment will be made for placement, only to the lines and grades shown on the drawings (see Measurement and Payment paragraph below). In the event the Contractor adjusts the construction template as specified herein, payment will be made for measured quantity, not exceeding the required placement quantity. Payment will not be made for material placed above the required berm elevation, or placed seaward of the toe of slope. The toe of slope shall be defined as the point of intersection of the template as shown on the drawings with the

Section 35 31 00 Page 8 before-placement survey profile.

3.6.6 Removal of Debris

Implement the procedures regarding MEC as specified in Paragraph "Detection of MEC" in Section 01 35 30 MUNITIONS AND EXPLOSIVES OF CONCERN (MEC) CONSTRUCTION SUPPORT. When any non-MEC item that physically should not be able to pass through the intake screening opening is detected in the discharge screening device, immediately implement the following procedures:

a. Stop dredging and beachfill work.

b. Report the incident to the COR.

c. Intake and/or discharge screening devices shall be inspected and repaired if necessary.

d. Beachfill and/or dredging work shall not resume until notification from the Contracting Officer.

During the operation of placing beachfill material, all debris resulting from construction operations shall be removed from the work site and disposed of, at no additional cost to the Government. Such disposal shall comply with all applicable Federal, state and local laws. Such materials shall be removed from the site of the work before the date of completion of the work under these specifications. Debris may be temporarily stored on-site in a dumpster or roll-off box. Do not bury any debris collected in the screening device in the beachfill.

3.6.7 Placement Of Beachfill Beneath Existing Beach Structures

Placement and grading of beachfill material by hand may be required beneath existing beach structures. Protect the existing beach structures from damage. Placement of beachfill material beneath structures shall be done in a manner that minimizes the ponding of water. If ponded areas are created due to beachfill operations,these areas shall be pumped dry at no additional cost to the Government. Any structures damaged by the Contractor's operations shall be repaired, at no additional cost to the Government.

3.6.8 Placement of Beachfill Above Groins and Outfalls

A minimum of 5-foot of beachfill cover over groins and outfalls shall be placed prior to the use of equipment across these structures. Any damage to groins or outfalls due to the Contractor's operations shall be repaired, at no additional cost to the Government.

3.6.9 Hydraulic and Hopper Dredges

All pipelines used with hydraulic dredges shall be kept in good condition at all times, and any leaks or breaks shall be promptly repaired. Material excavated by hopper dredge shall be loaded into bins or hoppers and pumped directly to the beachfill area by a means which shall prevent the loss of any material into the ocean. Special care shall be taken to assure that hoppers do not leak during any phase of the contract work.

3.6.10 Submerged Dredge Pipe

Barricades, warning signs, and lights shall be provided by the Contractor, Section 35 31 00 Page 9 subject to the approval of the Contracting Officer as part of the accident prevention plan, for the protection and safety of the public using the adjacent beach areas. The beachfill dredge pipe shall be clearly marked with buoy signs or other signage approved by the Contracting Officer at a distance of 200 feet seaward of the low water line at all locations that the dredge pipe is landed. This sign shall warn the public of the location and danger of the submerged pipe. All barricades, warning signs, and lights shall be installed prior to the start of any work. See Section 00 73 00 SPECIAL CLAUSES for requirements to notify the Coast Guard to issue a "Notice to Mariners".

3.6.11 Removal of Stakes and Markers

Remove all stakes, markers, temporary fencing, burlap, piping, or other items used in the construction of the beach within 24 hours after completion and before approval of an acceptance section, or as otherwise directed by the Contracting Officer. All stakes, markers, temporary fencing, burlap, piping, or other items used in the construction that become uncovered after approval of the acceptance section shall be removed within 24 hours of their detection.

3.7 SITE RESTORATION

If any sand fence and/or post and rail fence is removed, or any dunes are affected for access, the Contractor shall rebuild the damaged dune, replant any damaged dune grass, and reinstall fencing, as necessary, to restore the area to original conditions. Any materials required to establish or stabilize access points for vehicle use at those street ends shall be approved by the COR and provided and removed by the Contractor. Any additional parking that the Contractor requires, outside the work limits, shall be coordinated directly with the appropriate local officials.

3.8 CONTRACTOR QUALITY CONTROL

3.8.1 Contractor Reports

Prepare and maintain Daily Report of Operations forms, and furnish signed copies thereof with the daily Quality Control Records, as required in Section 01 45 00 QUALITY CONTROL, to the Contracting Officer. Copies of the Daily Report of Operations forms to be used are included at the end of this Section. Submit with these daily forms the location and depth of dredging in the borrow area.

3.8.2 Samples and Testing

Obtain samples of beachfill material from each finished beach location at 500 foot intervals not more than two days following placement and final grading of beachfill and have them tested for grain size distribution in accordance with ASTM D422. All testing shall be performed by a Corps of Engineers approved laboratory as specified in Section 01 45 00 QUALITY CONTROL. Samples shall be obtained at approximately elevation +4.00 NAVD 88 on the foreshore slope. Test results shall be recorded on ENG Form 2087, a copy of which is provided in Section 00 73 90 of this contract.

Also record on ENG Form 2087 the location of the dredge within the borrow area and the depth of dredging at the time of placement of the sand sampled. Submit the Test Reports to the Contracting Officer within one week after completion of the laboratory testing.

Section 35 31 00 Page 10

3.8.3 Form Preparation

Instructions regarding the preparation of all required forms will be provided at the Contractor Quality Control Coordination Meeting.

3.9 MEASUREMENT AND PAYMENT

3.9.1 Mobilization and Demobilization

All costs connected with the mobilization and demobilization of the Contractor's plant and equipment required for placement of beachfill will be paid for at the contract lump sum prices for these items as listed in the Bidding Schedule. Sixty percent (60%) of the lump sum price will be paid to the Contractor upon completion of his mobilization at the work site. The remaining forty percent (40%) will be included in the final payment for work under this contract.

3.9.1.1 Contractor Furnished Cost Data

In the event the Contracting Officer considers that the amount in this item (sixty percent) which represents mobilization, does not bear a reasonable relation to the cost of the work in this contract, the Contracting Officer may require the Contractor to furnish cost data to justify this portion of the bid price. Failure to justify such price to the satisfaction of the Contracting Officer will result in the payment of actual mobilization costs, as determined by the Contracting Officer, at the completion of mobilization. The payment of the remainder of this item will be included in the final payment under the contract. The determination of the Contracting Officer in these circumstances is not subject to appeal.

3.9.1.2 Mobilization and Demobilization Costs

All costs in connection with the mobilization and demobilization of the Contractor's plant and equipment as defined below shall be included in the contract lump sum price for Base Bid Item titled, "Mobilization and Demobilization", as listed in the Bidding Schedule.

a. Mobilization shall include all costs for operations accomplished prior to commencement of actual beachfill placement; that is transfer of all plant and equipment to the work site, initial installation of pipelines, and all other incidentals in advance of beachfill placement operations.

b. Demobilization shall include general preparation for transfer of the plant and equipment to the Contractor's home or standby base, removal of pipelines, cleanup, and the transfer of plant and equipment to the home or standby base.

c. All costs in connection with any additional mobilization and demobilization of the Contractor's plant and equipment between the work areas, shall be included in the respective contract unit prices for the Base Bid Items, titled "Beachfill".

d. All costs in connection with any additional mobilization and demobilization of the Contractor's plant and equipment in connection with the Option Bid Items shall be included in the contract unit prices for the respective Option Bid Items, titled "Beachfill".

Section 35 31 00 Page 11

3.9.2 Beachfill

The work specified in this section for placing and grading of beachfill material in the designated areas and to the lines and grades shown on the contract drawings, within the payment tolerances specified herein, will be measured for payment by the cubic yard of sand in place on the beach.

Payment will be made at the contract unit prices per cubic yard for the Base Bid and Option Items listed on the Bidding Schedule titled "Beachfill".