A22-W912P8-15-B-0037 Am_0002.pdf

PDF 3 MB Posted Aug 4, 2015

Attached to: HSDRRS - Lake Pontchartrain and Vicinity Mitigation, Milton Island Flood Side Intermediate Marsh Restoration, St. Tammany Parish, Louisiana (ED 12-053)
Solicitation number: W912P81-15-B-0037
Issued by: Department of the Army Corps of Engineers Engineering District New Orleans

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W912P8-15-B-0037 Amendment 2

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File	Type	Posted
15-B-0037_Abstract.pdf	PDF	Aug 12, 2015
A22-W912P8-15-B-0037 Am_0003.pdf	PDF	Aug 7, 2015
A22-W912P8-15-B-0037 Am_0001.pdf	PDF	Jul 23, 2015
A22-W912P8-15-B-0037.pdf	PDF	Jul 9, 2015
H01-15B0037Milton_plans.pdf	PDF	Jul 9, 2015

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AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The above numbered solicitation for HSDRRS Lake Pontchartrain and Vicinity (LPV), Milton Island Flood Side Intermediate Marsh Restoration, St. Tammany Parish, Louisiana, is hereby amendment to list Q&As and to change the P&S as per the attached.

All other terms and conditions remain the same. The bid opening date of Wednesday, 12 August 2015, remains unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1

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

16C. DATE SIGNED

BY 04-Aug-2015

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 W912P8-15-B-0037

X 9B. DATED (SEE ITEM 11)

09-Jul-2015

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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

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

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

04-Aug-2015

CODE

USACE, CONTRACTING DIVISION

ATTN: CEMVN-CT, ROOM 172

7400 LEAKE AVE.

NEW ORLEANS LA 70118-3651

W912P8 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

Contractor Questions and Responses

1. (7/8/15) Will the Corps require the contractor to hire a construction materials testing firm to provide soil testing and inspection during construction of the proposed project?

The only soil testing required by this contract is as per Section 31 24 00.00 12, amended Paragraph 2.1.2 “Commercially Furnished Embankment Material”, which would only be implemented should a Contractor elect to supply commercially furnished fill for any portion of the Shoreline Restoration Reach of work.

2. (7/21/15) Is it possible for you to send me a copy of the USACE survey of the Marsh Creation Area and the Borrow Pit? If so would you please do so.

Survey data of the marsh creation area and borrow pit is available upon request.

3. (7/21/15) Question concerns Drawing C-03 and Drawing B-01. Drawing C-03 represents the top of existing available borrow material in the Primary and Secondary borrow areas to be at an approximate elevation of -9.0. But, the borings MIM-1G thru MIM-6G on drawing B-01 represent the ground elevation at approximately elevation +1.05 to +1.82. Please clarify this apparent discrepancy.

This discrepancy has been clarified by amended drawing B-01. The general top of existing available borrow material in the Primary and Secondary borrow areas is at approximate elevation -9.0 as indicated on drawing C-03.

4. (7/21/15) If a vendor has an alternative product to the erosion control bags (DeltaLok product) specified, do requests for substitution have to be submitted by the July 23rd deadline for questions?

Requests for approval for substitutions are gladly accepted prior to bid opening, or at the Contractors peril upon award of the contract. Substitutions (or equivalents) for the shoreline restoration reach revetment need to (1) properly articulate to cover the same required footprint, (2) provide satisfactory anchorage, (3) allow planting of required vegetative cover, and (4) afford similar deterrent to wave action.

5. (7/22/15) Is there any more geotech information on the boring samples available?

Specifically blow counts and compression tests along with liquid limits and plasticity information.

Available geotechnical data is available upon request.

6. (7/22/15) The boring samples provided for the Borrow Pit suggest that the ground elevation is at 1.05, 1.68, and 1.82. But the survey depths are at -9, -10, which would leave 8’ to 10’ of dig face in some areas. Can we get some clarification on this?

Please see response to question 3 above. In general, the Contractor is afforded approximately 10 feet of allowable dredging below the existing lake bottom throughout the limits of the primary and secondary borrow pits.

7. (7/23/15) Section 35 20 23.00 12, paragraph 3.1.2 states “Material beyond the allowable template is not impacted.” Please define the word “impacted” and clarify whether the cutterhead can disturb below -20’ NAVD88.

The intent of this requirement is that after dredging surveys reflect a bottom elevation as close as possible to -19.0’ NAVD88 and not to exceed -20’ NAVD88. It is understood that the cutterhead may be placed deeper to achieve this target elevation. As dredging progresses, after dredging surveys shall be monitored and the cutterhead depth adjusted to best achieve the desired target elevation and allowable tolerance.

8. Section 35 20 23.00 12, paragraph 3.1.2 states “Dredging shall be accomplished within each payment acceptance reach to fully exhaust available borrow materials.”

Please define the term “exhaust”.

The intent of this requirement is to minimize the impacted footprint of the Lake Pontchartrain borrow site, by maximizing the material taken out of the borrow acres used. In order to achieve this goal, the contractor is requested to maintain final borrow elevations within a 1 foot tolerance of the target elevation of -19.0’ NAVD88 (-18.0’ to - 20.0’). There is no anticipation on the part of the Government to require redredging of any completed dredging reach, however as dredging progresses, after dredging surveys shall be monitored and the cutterhead depth adjusted such that each successive dredge cut best achieves the desired target elevation and allowable tolerance.

9. The cut plan on page C-05 of the contract plans show a cut width of 215’. Can the Contractor cut wider than the provided plan?

Yes, the Contractor is allowed to cut wider than the provided plan. As per Section 02 21

10.00 12, Paragraph 3.1.3.2 “Before and After Dredging Cross Sections”; “The number of consecutive dredge alignments/cuts shall be determined by the Contractor based on the swing width of the dredge proposed by the Contractor.” In addition Section 02 21

10.00 12, Paragraph 3.1.3.1 “General” states, “The Contractor shall specify the proposed dredge swing width at the preconstruction meeting.”

10. When is the anticipated date that the notice to proceed will be issued?

As indicated in Note 3 of the Bidding Schedule, it is anticipated that NTP will be issued immediately after verification of acceptable performance and payment bonds.

11. Are there any turbidity requirements for this project?

There are no turbidly requirements in this contract. Section 35 20 23.00 12, Paragraph

3.3.5 states “The pool level in the disposal area shall be controlled by a spill box weir(s) of a height sufficient to maintain water flow over the weir and maximize the retention of solids.”

12. Please provide all project permits.

There are no permits associated with this solicitation.

13. (7/23/15) Where shall the contractor place excess material (material above +1.0’) from the flotation access dredging for the shoreline restoration reach?

All material excavated from the flotation access corridor will be cast landside of the excavated channel. The requirements for earthen fill material to construct the shoreline restoration reach have been modified to allow usage of this material in the construction of the embankment if the contractor elects to do so. Or the material may be used to restore the bankline area between the excavated channel and the embankment alignment. Remaining material, if any, shall be placed within the marsh creation area.

14. (7/23/15) An abandoned Northwest dragline is located in the centerline of the shoreline restoration reach. Does this need to be removed from the project site?

The abandoned dragline does not need to be removed from the project site. The dragline will fall outside the footprint of the shoreline restoration embankment and is not to be disturbed. See amended paragraph 3.1.5.1 “Pre-Construction Shoreline Restoration Surveys” in Section 02 21 10.00 12.

15. (7/23/15) Can the woody vegetation on the existing containment dikes be chipped instead of buried in the marsh restoration area?

Chipping of vegetative debris as a result of clearing the existing containment dikes and uniform spreading of resulting mulch will be allowed.

16. (7/23/15) Do the stumps in the shoreline restoration reach need to grubbed?

Grubbing in the shoreline restoration reach is not required. As per amended paragraph

3.6 CLEARING of Section 35 20 23.00 12, “Growth standing in water at the proposed northern dike and/or lake shoreline restoration reach may be cut off so as not to protrude more than 12 inches above the existing water surface.”

17. (7/23/2015) Is the flotation channel in front of the Shoreline Restoration feature required to be backfilled prior to demobilization?

No, the contract does not require backfilling of the flotation channel fronting the shoreline restoration reach. Material removed from the flotation channel excavation will be used to enhance the existing shoreline, restoration structure footprint and/or marsh platform.

18. (7/23/15) The Interior Access Canal shows a width of 35 ft. The bucket dredges and barges capable of performing this work are 40 ft wide. Please change the width to 45 ft.

Design is restricted by available environmental clearance and available ROE requirements. As such, the channel template remains unchanged, and bids shall be made accordingly. However, due to the nature of this bucket dredging effort, an allowable one foot tolerance beyond the theoretical section would give in excess of 40’ at the mandatory bottom elevation.

19. (7/23/15) When does the Corps expect to issue NTP?

As indicated in Note 3 of the Bidding Schedule, it is anticipated that NTP will be issued immediately after verification of acceptable performance and payment bonds.

20. (7/23/15) Can the cut off trees within the shoreline feature be left in place and buried?

Please see amended paragraph 3.6 CLEARING of Section 35 20 23.00 12. Debris resulting from tree removal may be chipped, removed from site, or trimmed and placed within the marsh creation site. Growth standing in water at the proposed northern dike and/or lake shoreline restoration reach may be cut off so as not to protrude more than 12 inches above the existing water surface.

21. (7/23/15) As there is plenty of material on site capable of raising the shoreline feature from a +1.0 to a +4.5, please provide an onsite borrow area for this location.

The Solicitation has been amended such that Commercial Fill is not mandatory. The contractor is allowed to use borrow as defined in amended paragraph 2.1.1 “Material Source” of Section 31 24 00.00 12.

22. (7/23/15) Are the dikes that are at sufficient elevation for material containment required to be cleared and grubbed?

Yes, as per the newly inserted “CLEARING” bidding schedule line item, the entire retention dike footprint will be cleared. See amended paragraph 3.6 CLEARING, of Section 35 20 23.00 12.

23. (7/23/15) What is the contractor required to do with the dragline and boom in the shoreline feature?

The main body of this abandoned dragline will fall immediately outside the shoreline restoration footprint, and it is currently desired to leave this relic in place. The remnant visible disconnected metal debris which would fall within the embankment footprint will be removed under the newly inserted “CLEARING” bidding schedule line item.

24. (7/23/15) Can you tell me if a magnetometer survey of the borrow pits and the flotation canal for the retention dikes be required?

NO – taking of magnetometer surveys are not a contract requirement.

SPECIFICATIONS:

SECTION 00010

Pages 00010-3 thru 5. Delete pages 00010-3 thru 5 in their entirety and substitute the attached revised pages 00010-3 thru 5 therefore.

SECTION 01 57 20.01 12

Page 8, paragraph 3.3.2.1 (5). Delete the 1st sentence “To ensure manatees…” in its entirety and substitute the following sentences:

“To ensure manatees are not trapped due to construction of retention dikes or the shoreline restoration feature, the project area shall be surveyed prior to commencement of work activities. Surveying shall consist of visual on-site traversing of the proposed marsh creation platform before and during construction of these containment features.”

SECTION 02 21 10.00 12

Page 8, paragraph 3.1.5.1. Delete paragraph 3.1.5.1 “Pre-Construction Shoreline Restoration Surveys” in its entirety and substitute the revised paragraph 3.1.5.1 as follows:

“3.1.5.1 Pre-Construction Shoreline Restoration Surveys

A centerline profile of the proposed dike alignment and pre-construction cross sections at approximate 200 foot intervals and approximately 200 feet in width shall be taken of the shoreline restoration reach of work. The cross sections shall be plotted and overlaid with the required embankment template. In addition, the resulting survey data shall be plotted in plan view, depicting the theoretical embankment centerline and toes. The location of an abandoned Northwest dragline located at approximately the center of the shoreline restoration reach shall be identified during survey data collection and plotted on the plan view drawing. If required, the embankment alignment shall be shifted to assure the abandoned dragline (to remain in place) is not impacted by the embankment construction.”

Page 9, paragraph 3.1.5.2. Delete the 2nd sentence “The cross sections shall…” in its entirety and substitute the following sentences:

“The cross sections shall be of adequate length to encompass 50 feet beyond the outer dike toe limits through the inner interior limit of the borrow excavation required to complete the dike section. The cross sections taken with the shoreline restoration reach shall extend an adequate distance to encompass the limits of both exterior and interior borrow if used.”

SECTION 31 24 00.00 12

Page 2, paragraph 1.1. Delete paragraph 1.1 “SCOPE” in its entirety and substitute the revised paragraph 1.1 as follows:

“1.1 SCOPE

The work covered by this section consists of furnishing all plant, labor, equipment and materials, and performing all operations in connection with earthen construction and final shaping to the required template of the approximate 1,000 linear foot earthen shoreline restoration reach of embankment, including hauling and offloading of earthen fill (offsite or onsite borrow) as required, commercial fill if used, and other incidental earthwork as may be necessary to complete the embankment.”

Page 2, paragraph 1.3.1. Delete paragraph 1.3.1 “Lake Shoreline Restoration and Embankment” in its entirety and substitute the revised paragraph 1.3.1 as follows:

“1.3.1 Lake Shoreline Restoration and Embankment

Approximately 1,000 feet of lake shoreline will be constructed to a larger footprint than the remainder of the required retention dike. No separate measurement will be made for construction of this earthen shoreline restoration reach; except that the completed embankment will be accepted as a whole based on approval of required post construction cross sections.”

Page 3, paragraph 1.4.1. Delete paragraph 1.4.1 “Lake Shoreline Restoration and Embankment” in its entirety and substitute the revised paragraph 1.4.1 as follows:

“1.4.1 Lake Shoreline Restoration and Embankment

Payment for construction of the approximate 1,000 foot earthen shoreline restoration reach will be made at the contract job price for “Lake Shoreline Restoration”. Price and payment shall constitute full compensation for furnishing all plant, labor, testing (if required), equipment, hauling of fill material, commercial fill (if used), foundation preparation, placing and compacting of earthen fill, segregation of debris, final dressing, and other incidental work required to complete the embankment or fill.”

Page 3, paragraph 1.4.2. Delete paragraph 1.4.2 “Embankment Materials Testing” in its entirety and substitute the revised paragraph 1.4.2 as follows:

“1.4.2 Embankment Materials Testing

No separate payment will be made for testing. Required testing is limited to analysis required to meet the requirement of amended paragraph 2.1.2 ‘Embankment Material’, should the Contractor elect to haul in commercial fill.

Testing is not required for on-site fill materials obtained. Testing shall be included in the contract job price for “Lake Shoreline Restoration.”

Page 3, paragraph 1.5. Delete the last sentence of the submittal requirement for Commercially Approved Source “Submittal shall include…” in its entirety and substitute the revised sentence as follows:

“If the Contractor elects to haul in commercial fill, the submittal shall include source name, pit location, and a copy of the current DEQ permits that are required to operate a commercial pit.”

Page 4, paragraph 2.1. Delete paragraph 2.1 “MATERIALS” in its entirety and substitute the revised paragraph 2.1 as follows:

“2.1 MATERIALS

2.1.1 Material Source

Material used to construct the shoreline restoration ridge shall be obtained from one of the following sources or a combination thereof: (1) excavation of lakeside access corridor, (2) allowable borrow of interior borrow canal fronting the shoreline restoration reach, (3) hauled in borrow excavated from the Lake Pontchartrain marsh creation borrow site, and/or (4) material obtained from a commercially approved source. If material is obtained from a commercially approved source, approval constitutes certification of material classification to meet the requirements below and confirmation that all permits needed to operate a commercial pit are current.

2.1.2 Commercially Furnished Embankment Material

The embankment shall be constructed of naturally occurring earth materials.

Should the Contractor elect to provide commercially purchased earthen fill material, the material furnished shall be classified in accordance with ASTM D 2487 as CL, ML, or SC with less than 35% naturally occurring sand content.

Material placed in section must be at or above Plasticity Index of 10, and shall be at or below an organic content of 9 percent by weight as determined by

ASTM D 2974, Method C. Materials placed in the section shall contain less than 35% sand content by weight, as determined by ASTM D 1140.

2.1.3 Fill Material

All fill materials shall be free from significantly sized non-soil materials, not limited to tree stumps and major branches (greater than 5 feet in length), root balls, large chunk concrete or scrap metals (greater than 1 cubic foot in size).

Such non-earthen debris, as determined by visual observation during fill placement, shall be removed from the embankment section. Non-naturally occurring debris shall be removed from site. Naturally occurring debris (woody, vegetative, rock) can be placed and buried within the marsh creation site.

Page 5, paragraph 3.1. Delete the 2nd sentence “To assure viability…” in its entirety.

Page 5, paragraph 3.2. Delete the 3rd sentence “After clearing and removal…” in its entirety and substitute revised sentence as follows:

“After clearing and removal of debris and undesired vegetative material, the Contractor shall proceed with placement of base material.”

SECTION 35 20 23.00 12

Page 4, paragraph 1.2.4. In the 3rd subparagraph, delete the phrase “, except for the “Lake Shoreline Restoration” work described herein”.

Page 4, paragraph 1.2.6. Delete the 2nd sentence “Commercially furnished hauled…” in its entirety.

Page 4, paragraph 1.2.6. Insert the new paragraph “1.2.7 Clearing” after paragraph 1.2.6 as follows.

“1.2.7 Clearing

The footprint of any vegetated retention dike alignment, in addition to any portion of the staging area proposed to be used by the Contractor shall be cleared of vegetation. No measurement will be made for retention dike clearing efforts.

Page 5, paragraph 1.3.3. In the 4th line, delete the words “tree clearing,”

Page 5, paragraph 1.3.4. Insert the new paragraph “1.3.5 Clearing” after paragraph 1.3.4 as follows:

“1.3.5 Clearing

Payment for clearing of the retention dike alignment footprint of unwanted vegetated growth or debris will be made at the contract job price for “Clearing”.

Price and payment shall constitute full compensation for furnishing all plant, labor, and equipment, and performance of clearing, trimming, chipping, and associated disposal of vegetative growth and debris, and other incidental work required to complete the clearing operation.”

Page 12, paragraph 3.3.3. Delete the 2nd paragraph “All vegetative debris…” in its entirety.

Page 14, paragraph 3.5. Insert the new paragraph “3.6 CLEARING” after paragraph 3.5 as follows:

“3.6 CLEARING

In preparation for required retention dike surveys, monitoring, and potential rehabilitation, clearing of the retention dike alignment footprint of unwanted vegetated growth or debris is required around the perimeter of the proposed marsh creation site. Prior to use of any portion of the allowable staging area, clearing of the footprint to be used will be performed. Clearing consists of removal above the ground surface of trees, stumps, down timber snags, brush, vegetation, and similar debris which will prohibit walking, surveying, monitoring, and/or visual inspection of the entire retention dike template by Contractor personnel and/or government inspectors. Growth standing in water at the proposed northern dike and/or lake shoreline restoration reach may be cut off so as not to protrude more than 12 inches above the existing water surface.

All vegetative debris resulting from clearing operations for retention dike construction/rehabilitation shall be chipped on site, removed from site, or neatly trimmed and disposed of within the marsh creation areas. If the Contractor elects to dispose of trimmed vegetative debris into the marsh creation site, branches shall be trimmed such that all remnants are buried by the dredge material placement. Tree trunks and major branches shall be cut into not longer than eight (8) foot lengths prior to disposal. Mature native trees which will not prohibit walking, surveying, monitoring, and/or visual inspection of the entire retention dike template shall remain standing where possible. The Contractor shall make a reasonable effort to channel merchantable material into the commercial market to make beneficial use of materials resulting from clearing operations. Any unsuitable material such as tires, concrete, metal (including white trash), etc. shall be disposed of in accordance with current regulations.”

DRAWINGS:

Sheet Identification Nos: G-03, C-01, C-02, C-04, C-06, C-11, C-12, C-15, C-16, and B-01. Delete these drawings in their entirety and substitute the attached revised Sheet Identification Nos: G-03, C-01, C-02, C-04, C-06, C-11, C-12, C-15, C-16, and B-01 therefore.

SECTION 00010 – BIDDING SCHEDULE

HSDRRS – Lake Pontchartrain and Vicinity (LPV) Mitigation Milton Flood Side Intermediate Marsh Restoration

St. Tammany Parish, LA.

00010-3 ED 12-053

Item DESCRIPTION Estimated Quantity Unit Unit Price Estimated Amount

Mobilization and Demobilization

1 Job

0002 Dredging for Marsh Creation

0002AA First 800,000 CY 800,000 CY

0002AB All Over 800,000 CY 200,000 CY

0003 Retention Dike Construction 5,600 LF

0004 Retention Dike Restoration 1 Job

0005** Lake Shoreline Restoration 1 Job

0006 Erosion Protection 1 Job

0007 Access 1 Job

0008** Clearing 1 Job

TOTAL: $

** Denotes a change from the previous Bidding Schedule

The unit “JOB” as used in this Bidding Schedule is synonymous with the term “Lump Sum”.

Award will be made as a whole to one bidder.

NOTE 1: Bidders shall furnish unit prices for each item listed in the Schedule requiring a unit price. If the bidder fails to insert a unit price in the appropriate blank for required item(s), but does furnish an extended total, or an estimated amount for such item(s), the Government shall deem the unit price to be the quotient obtained by dividing the extended amount for that line item by the quantity. IF A BIDDER OMITS BOTH THE UNIT PRICE

AND THE EXTENDED TOTAL OR ESTIMATED AMOUNT FOR ANY ITEM, ITS BID SHALL

BE DECLARED NON-RESPONSIVE AND THEREFORE INELIGIBLE FOR AWARD.

NOTE 2: Any bid may be rejected if the Contracting Officer determines in writing that it is unreasonable as to price. Unreasonableness of price includes not only total price of bid, but the price for individual line items as well. Any bid may be rejected if the prices for any line items or subline items are materially unbalanced (See FAR 14.404-2).

00010-4 ED 12-053

NOTE 3: THE NOTICE TO PROCEED (NTP): The successful bidder is advised that performance and payment bonds shall be submitted in accordance with the time frame in block 12B of SF 1442 after Notice of Award. The NTP will be issued immediately after verification of acceptable performance and payment bonds. Within 24 hours after issuance of the NTP, the Contractor shall initiate a meeting to discuss the submittal process with the Area or Resident Engineer or his authorized representative. Physical work cannot start until the Accident Prevention Program, Contractor Quality Control Plan, and other submittals which may be required, have been submitted and approved and all preliminary meetings called for under the contract, have been conducted.

NOTE 4: Rapid Vendor Payment: Web based instructions for the submission of invoices;

http://www.mvn.usace.army.mil/BusinessWithUs/Contracting/RapidVendorPayment http://www.mvn.usace.army.mil/BusinessWithUs/Contracting/RapidVendorPayment

00010-5 ED 12-053

EVALUATION OF SUBDIVIDED ITEMS (MAR 1995) - UAI.

Item No. 0002 is subdivided into two (2) or more estimated quantities and is to be separately priced. The Government will evaluate each of these items on the basis of total price of its sub-items.

VARIATIONS IN ESTIMATED QUANTITIES - SUBDIVIDED ITEMS (MAR 1995) - UAI.

The Variations in Estimated Quantities Subdivided Items clause is applicable only in Item No. 0002.

a. Variations from the estimated quantity in the actual work performed under any second or subsequent sub-item or elimination of all work under such a second or subsequent sub-item will not be the basis for an adjustment in contract unit price.

b. Where the actual quantity of work performed for Item No. 0002 is less than 85% of the quantity of the first sub-item listed under such items, the Contractor will be paid at the contract unit price for that sub-item for the actual quantity of work performed and, in addition, an equitable adjustment in contract price shall be made in accordance with the clause FAR 52.211-18, Variation in Estimated Quantity.

c. If the quantity of work performed under Item No. 0002 exceeds 115% or is less than 85% of the total estimated quantity of the sub-items under that item, and/or if the quantity of work performed under the second sub-item or any subsequent sub-item under Item No. NONE exceeds 115% or is less than 85% of the estimated quantity of any such sub-item, and if such variation causes an increase or a decrease in the time required for performance of this contract, the contract completion time will be adjusted in accordance with the clause FAR 52.211-18, Variation in Estimated Quantity.

(End of clause)

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O R

P S O

F E

N G

E E

W O

R L E

A N

S D

T R

N E

W O

R L E

A N

S L

O U

N A

M A

R S

H C

R E

A T

S T T

A M

M A

N Y P

A R

H S

D D

R S

L A

K E P

O N

T C

H A

R T

R A

N D V

A T

N P

R O J E

C T

T O

N I S

L A

N D

A N

S I

K E

H J

O 'C

K E

H J

O 'C

C D

H R

W B

W P -1

-B -0

W P -1

-C

H -0

-4

GENERAL NOTES:

3) INTERIOR WEIRS MAY BE CONSTRUCTED IF DESIRED BY THE CONTRACTOR, AND

SHALL BE INCLUDED IN THE DISPOSAL PLAN FOR APPROVAL BY THE COR. WEIRS,

IF CONSTRUCTED BY THE CONTRACTOR SHALL NOT EXCEED ELEVATION +2.5 NAVD88.

6) LENGTHS OF RETENTION DIKE TANGENTS AS SHOWN ON DRAWING C-01

ARE APPROXIMATE AND WILL BE FIELD VERIFIED.

5) UNDISTURBED PLUGS/NATURAL CROSSINGS AT LEAST EVERY 500 FEET ARE

REQUIRED IN ANY BORROW PITS FOR THE PERIMETER RETAINING DIKES TO

PREVENT EROSIVE CHANNELING BY THE EFFLUENT WATERS ALONG THE

DIKES AND TO INCREASE RETENTION TIME. THE DISCHARGE LINE INTO THE

DISPOSAL AREA SHALL HAVE MANIFOLDS OR BAFFLES ON THE POINT DISCHARGE.

1) THE CONTRACTOR WILL BE RESPONSIBLE FOR CONTAINING ALL DREDGED

MATERIAL WITHIN THE BOUNDARIES OF THE RESTORATION AREA. RETENTION

DIKES ARE REQUIRED TO RETAIN THE MATERIAL WITHIN THE RESTORATION

BOUNDARIES, AND SHALL BE CONSTRUCTED FROM IN-SITU MATERIAL

OBTAINED FROM WITHIN THE MARSH CREATION BOUNDARY. BORROW MATERIAL

SHALL BE TAKEN AT LEAST 55 FEET FROM THE CENTERLINE OF THE RENOVATED

DIKES. PERIMETER RETENTION DIKES SHALL BE CONSTRUCTED WITH A MINIMUM

5' CROWN WIDTH TO ELEVATION +4.5 NAVD88, EXCEPT FOR THE APPROXIMATE

1000' REACH ADDRESSED IN NOTE 2. SEE THEORETICAL DIKE SECTION PROVIDED

ON DRAWING C-06.

12) THE ALLOWABLE BORROW PIT POLYGON AND COORDINATES DEFINED ON

DRAWING C-03 REPRESENT THE ULTIMATE TOP EDGE OF CUT. IF A BOX

CUT IS IMPLEMENTED, IT SHALL ACCOUNT FOR ALL EXCAVATION REMAINING

WITHIN THIS DEFINED BOUNDARY. AT NO TIME SHALL EXCAVATION FOR

BORROW BE PERFORMED OUTSIDE THIS ALLOWABLE BOUNDARY.

16) PLANVIEW BACKDROPS WERE FROM PHOTOGRAPHY DATED 2010.

11) THE CONTRACTOR SHALL ESTABLISH A GRID OF STAFF GAGES WITHIN THE

MARSH CREATION FOOTPRINT AS SHOWN ON DRAWING C-04. STAFF GAGES

SHALL CONSIST OF 3 INCH PVC PIPE OR 4 INCH BY 4 INCH WOODEN POSTS,

MARKED AT HALF FOOT INTERVALS.

10) EFFLUENT WEIRS OR SPILL BOXES SHALL BE CONSTRUCTED AND MAINTAINED

TO MANAGE EFFLUENT WATER LEVELS, WHICH SHALL NOT EXCEED

ELEVATION +3.5' NAVD88. THESE STRUCTURE(S) SHALL BE LOCATED IN THE

NORTH AND/OR WEST RETENTION DIKES. THE CONTRACTORS PLAN FOR

MANAGING EFFLUENT WATER ELEVATIONS SHALL BE INCLUDED IN THE

DISPOSAL OF DREDGE MATERIAL PLAN.

15) COORDINATES SHOWN ON THESE DRAWINGS REFERENCE STATE PLANE,

NAD 83, LOUISIANA SOUTH ZONE 1702, U.S. SURVEY FEET.

13) THE PRIMARY BORROW PIT SHALL BE EXHAUSTED TO THE SATISFACTION

OF THE COR PRIOR TO RELOCATING TO THE SECONDARY BORROW PIT

FOR EXCAVATION. EXCAVATION SHALL BE MONITORED BY BEFORE AND

AFTER DREDING CROSS SECTIONS (SEE NOTE 4 ON DRAWING C-05).

14) THE NOAA NAUTICAL CHART REFERENCED IN PARAGRAPH 3.2.2 OF

SECTION 35 20 23.00 12 OF THE SPECIFICATIONS INDICATE AN AUTHORIZED

CLEARANCE OF 40 FEET AT THE ENTERGY OVERHEAD TRANSMISSION LINE

SHOWN ON THE CONTRACT PLAN DRAWINGS. THE CONTRACTOR SHALL

COORDINATE CROSSING UNDER THIS AERIAL TRANSMISSION LINE TO

ASSURE SAFE ACCESS. ALL EFFORTS SHOULD BE MADE TO ACCESS UNDER

THESE LINES WITHOUT REQUIRING THE LINES TO BE DE-ENERGIZED, OR TO

MINIMIZE DOWNTIME. THE CONTRACTOR SHALL PROVIDE THE UTILITY

OWNER A MINIMUM OF SIX (6) WEEKS LEAD TIME PRIOR TO ACCESSING THE

UTILITY CROSSING(S).

17) ALL ELEVATIONS ARE IN SURVEY FEET AND IN NORTH AMERICAN

VERTICAL DATUM 1988 (NAVD88), 2006.81 EPOCH. SURVEY DATA SHOWN IN

PLAN AND CROSS SECTION VIEWS WERE TAKEN IN MARCH 2012. THE

ELEVATIONS IN THESE PLANS AND SPECIFICATIONS ARE BASED OFF OF THE

FOLLOWING MONUMENTATION ESTABLISHED IN USACE SURVEYJOB# 12-055C.

NEW VERTICAL CONTROL MONUMENTATION ESTABLISHED

DESIGNATION

MONUMENT

ELEVATION

4.859'

12-055C-1 6.024'

1.600'

PBM LOUIS

X-COORDINATE Y-COORDINATE

876 1993 TIDAL

G 275 5.061'

K 383 29.070'

NETWORK CONTROL NGS MONUMENTS

J U

L Y

H -0

-4

-G

-0 .d g n

2) THE SOUTHERN BORDER OF THE MARSH CREATION FOOTPRINT CONTAINS AN

APPROXIMATE 1000' REACH OF SHORELINE BREACH, ALLOWING LAKE WATERS

TO ENTER THE PROPOSED MARSH CREATION SITE. THIS REACH SHALL BE

REPAIRED WITH AN EARTHEN SECTION TO MINIMUM ELEVATION +4.5' NAVD88 HAVING A

MINIMUM 20' CROWN WIDTH AND 1 VERTICAL ON 4 HORIZONTAL INTERIOR SIDE SLOPES, AND

1 VERTICAL ON 3 HORIZONTAL SIDE SLOPES LAKE SIDE TO ACCOMODATE EROSION

CONTROL GEOTEXTILE BAG PLACEMENT. THIS REACH OF SHORELINE RESTORATION

SHALL BE PROTECTED WITH A LAYER OF EARTHEN FILLED GEOTEXTILE BAGS.

FURTHER INFORMATION ON THIS PROTECTION MEASURE CAN BE FOUND IN THE

SPECIFICATION SECTION "EROSION CONTROL". REFERENCE THEORECTICAL

SHORELINE RESTORATION SECTIONS PROVIDED ON DRAWING C-06.

7) THREE (3) ACCESS CORRIDORS ARE AVAILABLE FOR USE BY THE CONTRACTOR.

THE WESTERN 200' WIDE "PIPELINE CORRIDOR" IS FOR PIPELINE ACCESS TO THE

MARSH CREATION SITE. NO EXCAVATION WITHIN THIS CORRIDOR IS ALLOWED.

THE SECOND "EXTERIOR ACCESS CORRIDOR" ALLOWS FOR EXCAVATION TO A 60'

BOTTOM WIDTH, NOT TO EXCEED ELEVATION -6.0 NAVD88. MATERIAL EXCAVATED MAY BE

STOCKPILED AS SHOWN ON DRAWING C-019. DISPOSAL AREAS WEST OF THE EXISTING

BREAKWATER SHALL BE BACKFILLED INTO THE CORRIDOR PRIOR TO DEMOBILIZATION.

THIS CORRIDOR SHALL BE USED FOR ACCESS TO THE SHORELINE RESTORATION

SITE, OFFLOADING EQUIPMENT, AND MATERIALS. THE "INTERIOR ACCESS CANAL" MANDATES

EXCAVATION TO -5.0' NAVD88 BY 35 FOOT BOTTOM WIDTH. DISPOSAL IS EAST OF THE EXISTING

BREAKWATER. THE EXISTING NAVIGATION CANAL PARALLELING THE EASTERN BOUNDARY OF THE MARSH

CREATION SITE MAY BE USED TO THE LIMITS INDICATED ON THE DRAWINGS FOR TRANPORT OF PERSONNEL

AND SUPPLIES, BUT AT NO TIME SHALL LOCAL WATERWAY TRAFFIC BE OBSTRUCTED.

9) BORROW DEPTH WITHIN LAKE PONTCHARTRAIN HAS BEEN ESTABLISHED AT

ELEVATION -19.0' NAVD88, WITH ALLOWABLE 1' OVERDEPTH TO -20.0 NAVD88.

EXCAVATION SHALL AT NO TIME EXCEED ELEVATION -20.0' NAVD88.

18) A CULTURALLY SIGNIFICANT SITE IS INDICATED ON THE DRAWINGS WITHIN LAKE

PONTCHARTRAIN. THE CONTRACTOR SHALL MINIMIZE IMPACTS BY AVOIDANCE OF THIS AREA.

8) FLOTATION EXCAVATION IS ALLOWED ADJACENT TO AND ALONG THE LENGTH OF THE

SHORELINE RESTORATION FEATURE. ALLOWABLE EXCAVATION SHALL NOT EXCEED

60 FEET IN WIDTH AT ELEVATION -6.0 NAVD88. MATERIAL EXCAVATED SHALL BE USED

IN THE CONSTRUCTION OF THE SHORELINE RESTORATION FEATURE, REHABILITATION OF THE

SHORELINE LANDSIDE OF THE FLOTATION CANAL, FILL MATERIAL FOR THE EXISTING INTERIOR

BORROW DITCH, PLACED WITHIN THE MARSH CREATION AREA.

4) EXISTING RETENTION FEATURES RESIDE ON THE EASTERN, WESTERN,

AND PARTIAL SOUTHERN BOUNDARIES OF THE MARSH CREATION SITE

WHICH MAY BE ADEQUATE FOR RETENTION OF DREDGED MATERIAL, OR

MAY REQUIRE REHABILITATION BY THE CONTRACTOR PRIOR TO DREDGING.

CLEARING OF THESE RETENTION DIKES IS MANDATORY, WITH VEGETATIVE

WOODY DEBRIS BEING REMOVED FROM SITE, CHIPPED, OR TRIMMED AND

PLACED IN THE MARSH CREATION SITE AND BURIED DURING THE FILLING OPERATION.

1 2

N O

T E

D M

A N

D A

T O

R Y C

L E

A R

G O

F D

E S

A L L

O W

A B

L E D

P O

S A

L /F

L O

T A

N M

A T

E R

A N S

N L

E S

A C R E S

B O

R R

O W P

S E C

O N

D A R

A C R E S

B O

R R

O W P

REACH

RES

TORATI

SHORELIN

(NO EXCAVATION)

CORRIDOR

ACCESS

PIPELINE

EQUIPMENT/

CANALBORROW

RES

TORATI

EAST

BASELINE

PIT

BORROW

SEE DRAWING G-03

FOR GENERAL NOTES,

STAGING AREA

OFFLOADING/

EQUIPMENT

150' x 100'

BREAKWATER

EXISTING

Disposal Area

D is p o s a l A re a

35' BOTTOM WIDTH

INTERIOR ACCESS CANAL

60' BOTTOM WIDTH

EXTERIOR ACCESS CANAL

BASELINE

CREATION

MARSH

C-01

P L

A N O

V E

R V

W :1

0 500'

SCALE:1"=500'

1000'

NEW ORLEANS DISTRICT

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

2 3

4 5

M A

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A P

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B M

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P L

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C A

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P L

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M A

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D E

S C

C O

N T

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C T N

IDENTIFICATION

SHEET

D A

T E

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P R

®of Engineers

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U .S

A R

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O R

P S O

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E E

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N E

W O

R L E

A N

S D

T R

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W O

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A N

S L

O U

N A

M A

R S

H C

R E

A T

S T T

A M

M A

N Y P

A R

H S

D D

R S

L A

K E P

O N

T C

H A

R T

R A

N D V

A T

N P

R O J E

C T

T O

N I S

L A

N D

A N

S I

K E

H J

O 'C

K E

H J

O 'C

C D

H R

W B

W P -1

-B -0

W P -1

-C

H -0

-4

H -0

-4

-C -0

.d g nJ

U L

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A T

E D

HELL

EEF

CULT

URAL

RES

SOUTH

CONSTRUCTI

NORTH

CONSTRUCTION

COORDINATED DURING

BLOCKAGES TO BE

NAVIGATION CANAL -

3 A

CRES

MARSH

CREATI

-2

-1

-8

-7

-6

-6 -6

-6

-6 -6

-5 -5

-5

-5 -5

-5

-5 -5

-5

-5 -5

-4

-4 -4

-4

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-3 -3

-3

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2 -2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

BOUNDARY

MARSH CREATION

-2

-2 -2

-2

-2 -2

-2

-2 -2

-2

-2 -2

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1 -1 -1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

-1 -1

-1

MATCH LINE C-03 MUST BE RETURNED TO PRECONSTRUCTION ELEVATIONS.

4. STOCKPILE AREA FOR ACCESS CHANNEL EXCAVATION

3. BASELINE COORDINATES PROVIDED ON DRAWING C-04.

2. BORING LOGS PROVIDED ON DRAWING B-02.

1. FOR GENERAL NOTES, SEE DRAWING G-03

NOTES:

-1

-1 -1

-0

-0 -0

-0

-0 -0

-0

-0 -0

-0

-0 -0

-0

-0 -0

-0 -0 -0 -0

-0

-0 -0

-0

-0 -0

-0

REACH

RESTORATION

SHORELINE

1000'

-0

-0 -0

-0

CREATION

MARSH

143 ACRES

-0

-0 -0 -0 -0

-0

A Z

-2

STA 0+16.00

AZ 56°21

'11.5"

AZ 56°20

' 0.1"

AZ 56°16

'17.5"

MIM-3U

(40')

MIM-2U

(30')

MIM-1U

(60')

MIM-4U

(30')

B 9 B

B 2 B

P /L A

C C

E S

C-02

P L

A N O

V E

R V

W :1

400'0 200'

SCALE:1"=200'

C O

R R

O R

(SEE TYPICAL SECTIONS)

RETENTION DIKE C/L

(SEE TYPICAL SECTIONS)

ALLOWABLE DIKE BORROW

CHANNEL

FLOTATION

ALLOWABLE

STA 0+15.00

AZ 56°08

'52.5"

STA 0+14.00

AZ 56°08

'45.9"

STA 0+13.00

AZ 56°13

'35.4"

STA 0+17.00

STA 0+20.00

AZ 56°21

' 4.1"

STA 0+19.00

AZ 56°21

' 6.3"

STA 0+18.00

NEW ORLEANS DISTRICT

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

2 3

4 5

M A

R K

A P

P R

D A

T E

E N

U M

B E

S U

B M

T E

D B

P L

O T S

C A

L E

P L

O T D

A T

D A

T E

M A

R K

D E

S C

C O

N T

R A

C T N

IDENTIFICATION

SHEET

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T E

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P R

®of Engineers

US Army Corps

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

N E

W O

R L E

A N

S D

T R

N E

W O

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A N

S L

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N A

M A

R S

H C

R E

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S T T

A M

M A

N Y P

A R

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D D

R S

L A

K E P

O N

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H A

R T

R A

N D V

A T

N P

R O J E

C T

T O

N I S

L A

N D

A N

S I

K E

H J

O 'C

K E

H J

O 'C

C D

H R

W B

W P -1

-B -0

W P -1

-C

H -0

-4

H -0

-4

-C -0

.d g n

X 3630259.282

Y 686795.086

X 3630619.091

Y 686484.587

X 3628226.722

Y 685792.932

X 3628787.388

Y 685014.146

X 3629986.129

Y 684856.785

X 3633032.431

Y 686435.615

X 3633178.458

Y 687788.077

X 3629711.214

Y 685372.621

J U

L Y

L L

O W

A B

L E I

N T

E R

R B

O R

R O

W I

N D

A T

E D

0 0

1 1

2 2

5 5

MATCH LINE

C-03

C-04

400'0 200'

SCALE:1"=200'

200'

P /L A

C C

E S

C O

R R

O R

C /L

M A

R S

H S

U R

V E

Y L

A Y

O U

B 5B

REACH (1000')

RESTORATION

SHORELINE

NEW ORLEANS DISTRICT

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

2 3

4 5

M A

R K

A P

P R

D A

T E

E N

U M

B E

S U

B M

T E

D B

P L

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C A

L E

P L

O T D

A T

D A

T E

M A

R K

D E

S C

C O

N T

R A

C T N

IDENTIFICATION

SHEET

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A R

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N E

W O

R L E

A N

S D

T R

N E

W O

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A N

S L

O U

N A

M A

R S

H C

R E

A T

S T T

A M

M A

N Y P

A R

H S

D D

R S

L A

K E P

O N

T C

H A

R T

R A

N D V

A T

N P

R O J E

C T

T O

N I S

L A

N D

A N

S I

K E

H J

O 'C

K E

H J

O 'C

C D

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W B

W P -1

-B -0

W P -1

-C

H -0

-4

H -0

-4

-C -0

.d g n

J U

L Y

PROFILE ENDPOINTS ARE PROVIDED.

5. SECTIONS SHALL REFERENCE BASELINE PROVIDED.

SHALL BE MARKED AT HALF FOOT INTERVALS.

MARSH CREATION AREA PRIOR TO DREDGING. STAFFS

4. STAFF GAGES SHALL BE ESTABLISHED WITHIN THE

INTERVALS, AND BREAKS IN GRADE.

3. ALL SECTIONS SHALL BE TAKEN ON 20' SHOT

PROFILES SHALL EXTEND 50' BEYOND TOE OF DIKE.

SHALL BE PERFORMED ON THE ALIGNMENTS PROVIDED.

2. IN ADDITION, THREE (3) POST CONSTRUCTION PROFILES

EXTEND 50' BEYOND OUTSIDE TOE OF RETENTION DIKE.

SECTIONS ON THE RANGES PROVIDED. SECTIONS SHALL

1. CONTRACTOR SHALL TAKE POST CONSTRUCTION CROSS

NOTES;

PROFILE 1

SG#2

SG#3

SG#1

SG#4

PROFILE 2

SG#5

PROFILE 3

SG#6

SG#7

MARSH PERIMETER

ALLOWABLE FLOTATION

DIKE CENTERLINE

STAFF GAGE LOCATION

PROF01

3628369.08 3630604.70

685452.56 686591.16

STATION X-COORDINATE Y-COORDINATE

B01 3633969.79 686957.19

3633134.92 686473.75

MARSH BASELINE COORDINATES

B02

B03

B05

B06

B07

B08

B09

B11

B10

B04

3632603.20

3632333.87

3631905.42

3631675.15

3631259.86

3630636.34

3630168.71

3630002.23

3629433.40

686288.85

686213.24

686035.77

685970.90

685692.13

685286.86

684983.05

684871.88

684492.03

PROF03

3629718.00 3633765.92

685241.79 687303.40

W E

PROF02

3628550.61 3633392.94

685096.12 687562.33

L L

O W

A B

L E I

N T

E R

R B

O R

R O

W I

N D

A T

-7.0

55'

EXISTING BOTTOM

ALLOWABLE BORROW

C/L

INTERIOR SIDE EXTERIOR SIDE

LAKE SIDE

75' 65'

C/L

MARSH SIDE

(NTS)

TYPICAL SECTION - MARSH CREATION

EXISTING BOTTOM

40' SOUTH DIKE

50' EAST AND WEST DIKES

60' NORTH DIKE

5' CROWN

(ELEV. +4.5')

(NTS)

THEORETICAL SHORELINE RESTORATION SECTION

FLOTATION CHANNEL1 O

N 2 1 O

(MAX)

60'

EL. -6.0' NAVD88 (MAX)

10'

NEW ORLEANS DISTRICT

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

2 3

4 5

M A

R K

A P

P R

D A

T E

E N

U M

B E

S U

B M

T E

D B

P L

O T S

C A

L E

P L

O T D

A T

D A

T E

M A

R K

D E

S C

C O

N T

R A

C T N

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N E

W O

R L E

A N

S D

T R

N E

W O

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A N

S L

O U

N A

-20

-10

C-06

60'

-7.0

55'

NORTHSOUTH

0 100 200 300 400 500 600-100 700 800 900 1000 1100 1200 1300

BORROW

ALLOWABLE

DITCH

BORROW

EXISTING

-10 -10

APPROX -2.0'

BOTTOM

EXISTING

5' CROWN

ELEV +4.5

NORTHERN DIKE

REQUIRED

TYPICAL

WEST, AND EAST)

DIKE (SOUTH,

EXISTING

40'

T H

E O

R E

A L S

E C

N S

N A

V D

T U

(NTS)

SHORELINE RESTORATION EROSION CONTROL

LEGEND:

TYPICAL PLANTING

ANCHOR 0.0

BAGS

BAG

3. ALLOWABLE WIDTH OF BORROW VARIES PER REACH OF RETENTION DIKE. SEE TYPICAL SECTION ABOVE.

BE NO DEEPER THAN ELEVATION -7.0' NAVD88.

2. BORROW SHALL INITIATE NO CLOSER THAN 55' FROM C/L OF DIKE. EXCAVATION FOR BORROW SHALL

SIDE SLOPES SHALL BE NO STEEPER THAN 1V on 3H.

1. ALL RETENTION DIKES SHALL BE CONSTRUCTED WITH A 5' CROWN WIDTH TO ELEVATION +4.5' NAVD88.

NOTES:

-20

-10

3 (MIN)

FRONT VIEW

+4.5

TOP OF CROWN

+3.5

0.0

10' SPACING

4' SPACING

TOP OF BAGS

REMAINING SLOPE, ON STAGGERED TEN FOOT SPACINGS. SEE SPECS FOR PLANT TYPES.

3. UPPER FOUR (4) ROWS OF PLANTING SPACED EVENLY ACROSS THE CROWN AND

FOUR (4) FOOT SPACINGS.

2. LOWER TWO (2) ROWS OF PLANTING STAGGER THE +1.0 CONTOUR AT STAGGERED

1. ONE (1) ANCHOR PER BAG REQUIRED. SIX (6) ROWS OF PLANTINGS REQUIRED.

NOTES:

10'

1000'

+4.0

+3.0

+2.0

+1.0

TYPICAL SECTION

DIKE RESTORATION

BORROW FOR SOUTH

ALLOWABLE

(NTS)

THEORETICAL RETENTION DIKE / BORROW SECTION

NEW ORLEANS DISTRICT

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

2 3

4 5

M A

R K

A P

P R

D A

T E

E N

U M

B E

S U

B M

T E

D B

P L

O T S

C A

L E

P L

O T D

A T

D A

T E

M A

R K

D E

S C

C O

N T

R A

C T N

IDENTIFICATION

SHEET

D A

T E

A P

P R

®of Engineers

US Army Corps

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

N E

W O

R L E

A N

S D

T R

N E

W O

R L E

A N

S L

O U

N A

M A

R S

H C

R E

A T

S T T

A M

M A

N Y P

A R

H S

D D

R S

L A

K E P

O N

T C

H A

R T

R A

N D V

A T

N P

R O J E

C T

T O

N I S

L A

N D

A N

S I

K E

H J

O 'C

K E

H J

O 'C

C D

H R

W B

W P -1

-B -0

W P -1

-C

H -0

-4

H -0

-4

-C -0

.d g n

+2.25'(+/-0.25')

TARGET FILL

(NTS)

WITHIN LAKE PONTCHARTRAIN

THEORETICAL EXTERIOR ACCESS DREDGING SECTION

SOUTH NORTH

E D

G E O

F C

U T

E D

G E O

F C

U T

+2.5'

MAX ELEV.

1 O N 2 1 O

(MAX)

35'

EL. -5.0' NAVD88 (MAX)

20'

(NTS)

WITHIN LAKE PONTCHARTRAIN

THEORETICAL INTERIOR ACCESS DREDGING SECTION

E D

G E O

F C

U T

E D

G E O

F C

U T

+1.5'

MAX ELEV.W

A T

E R

B R

E A

KWEST EAST

+4.5 TO +5.0

20' TO 25'

INTERIOR BORROW IS 40' FOR THIS SHORELINE RESTORATION FEATURE.

3. ALLOWABLE WIDTH OF LAKESIDE FLOTATION CHANNEL IS 60'. ALLOWABLE WIDTH OF

FOR FLOTATION SHALL BE NO DEEPER THAN ELEVATION -6.0' NAVD88.

BORROW SHALL BE NO DEEPER THAN ELEVATION -7.0' NAVD88. EXTERIOR EXCAVATION

65' FROM C/L OF DIKE ON INTERIOR BORROW. INTERIOR EXCAVATION FOR

LAKESIDE FLOTATION CHANNEL. BORROW SHALL INITIATE NO CLOSER THAN

2. EXCAVATION SHALL INITIATE NO CLOSER THAN 75' FROM C/L OF DIKE ON

AND 1v ON 4h MARSH SIDE.

WIDTH TO ELEVATION +4.5' NAVD88. SIDE SLOPES SHALL BE 1V on 3H LAKESIDE,

1. SHORELINE RESTORATION SHALL BE CONSTRUCTED WITH A MINIMUM 20' CROWN

NOTES:

20' TO 25' CROWN

ELEV. +4.5 TO +5.0'

WEST OF THE BREAKWATER UPON COMPLETION OF CONSTRUCTION.

PRE-CONSTRUCTION DEPTHS IN TEMPORARY STOCKPILE AREAS

3. LAKE BOTTOM ELEVATIONS SHALL BE RESTORED TO PROVIDE

BACKFILL UPON COMPLETION OF CONSTRUCTION.

ADJACENT AREAS DEPICTED ON THE PLAN DRAWINGS, FOR

2. EXCAVATED MATERIAL SHALL BE TEMPORARILY STOCKPILED IN

WIDTH OR ELEVATION -6.0 NAVD88.

1. ACCESS CHANNEL EXCAVATION SHALL NOT EXCEED 60' IN

NOTES:

60'

-7.0

J U

L Y

IS ALLOWED.

3. ONE FOOT TOLERANCE BEYOND THE THEORETICAL SECTION

MARSH DEVELOPMENT.

EXISTING BREAKWATER AT AN ELEVATION CONDUCIVE TO

2. EXCAVATED MATERIAL SHALL BE DEPOSITED EAST OF THE

AT ELEVATION -5.0 NAVD88.

1. ACCESS CHANNEL SHALL BE EXCAVATED TO 35'IN WIDTH

NOTES:

40'

BORROW

ALLOWABLE

E F

E D A

C C

E S

S C

O R

O R T

O L E

R A

N C

L L

O W

A B

L E I

N T

E R

R B

O R

R O

W I

N D

A T

SHORELINE RESTORATION REACH DIKE CROSS SECTIONS

LEGEND:

C-11

S H

O R

E L

E R

E S

T O

R A

N S

E C

N S

NEW ORLEANS DISTRICT

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

2 3

4 5

M A

R K

A P

P R

D A

T E

E N

U M

B E

S U

B M

T E

D B

P L

O T S

C A

L E

P L

O T D

A T

D A

T E

M A

R K

D E

S C

C O

N T

R A

C T N

IDENTIFICATION

SHEET

D A

T E

A P

P R

®of Engineers

US Army Corps

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

N E

W O

R L E

A N

S D

T R

N E

W O

R L E

A N

S L

O U

N A

M A

R S

H C

R E

A T

S T T

A M

M A

N Y P

A R

H S

D D

R S

L A

K E P

O N

T C

H A

R T

R A

N D V

A T

N P

R O J E

C T

T O

N I S

L A

N D

A N

S I

K E

H J

O 'C

K E

H J

O 'C

C D

H R

W B

-20

9+78.92

-140 -40 60 160

SOUTH NORTH

S N

-1.4

-223.6

S N

-1.2

-190.1

S N

-1.4

-174.2

S N

-1.0

-143.4

S N

D -1.0

-123.2

S N

D -.8

-95.5

S N

-.5

-72.7

W E

-46.3

S L

1.2

-38.9

2.0

-18.5

T O

2.2

-18.4

D K

4.0

-3.7

D K

4.1

12.0

W E

1.0

22.8

-3.7

45.2

-3.8

67.6

M S

-.5

82.5

M S

-.5

88.1

M S

-.5

124.4

M S

-.7

164.2

M S

-.9

201.6

75'

-20

2+25.87

-140 -40 60 160

SOUTH

NORTH

M S

-1.6

-200.2

M S

-1.8

-166.0

M S

-1.3

-129.0

M S

-.9

-81.9

M S

-1.1

-62.4

M S

-.8

W E

-20.3

D K

1.9

-5.8

D K

2.3

9.9

S L

1.4

18.9

W E

33.7

-1.6

43.4

M S

75.7

M S

-.1

94.3

M S

-.5

120.8

M S

-.1

158.3

M S

-.1

199.2

M S

-.1

225.6

75'

-20

4+76.57

7+27.72

-140 -40 60 160

M S

-2.7

-208.6

M S

-2.0

-186.0

M S

-2.3

-162.6

M S

-2.0

-146.2

M S

-2.1

-140.4

M S

-2.4

-107.4

M S

-2.6

-93.0

M S

-2.6

-73.6

M S

-2.7

-58.7

M S

-1.9

-45.7

M S

-.8

-28.7

M S

-.8

-6.9

M S

-.2

3.5

M S

-2.0

11.5

M S

-5.3

22.4

M S

-1.6

32.2

-2.4

45.0

M S

-.8

68.8

M S

-.6

92.1

M S

-.6

117.6

M S

-.5

147.1

M S

-.3

178.4

M S

-.3

213.5

S N

-2.0

-215.6

S N

-1.7

-191.4

S N

-1.4

-166.2

S N

-1.9

-142.5

S N

-1.3

-114.8

S N

-1.4

-90.2

S N

-1.5

-65.6

S N

-1.6

-51.8

S N

-.3

-24.0

W E

-6.5

D K

1.3

3.4

T B

1.4

3.6

W E

15.3

-2.1

46.1

M S

-.9

79.1 M

S H

-.4

122.1

M S

-.3

164.4

M S

-.3

221.4

75'

1:3 SIDE SLOPES LAKESIDE

SHORELINE RESTORATION - 1:4 SIDE SLOPES INTERIOR

W P -1

-B -0

W P -1

-C

H -0

-4

H -0

-4

-C -1

.d g n

-6.0

20' to 25' CROWN

ELEV +4.5 to +5.0

CHANNEL

FLOTATION

60'

+2.25'(+/-0.25')

TARGET FILL HEIGHT

flotation excavation material)

(can be backfilled with

EXISTING borrow DITCH

-6.0

CHANNEL

FLOTATION

60'

20' to 25' CROWN

ELEV +4.5 to +5.0

+2.25'(+/-0.25')

TARGET FILL HEIGHT

+2.25'(+/-0.25')

TARGET FILL HEIGHT

20' to 25' CROWN

ELEV +4.5 to +5.0

-6.0 flotation excavation material)

(can be backfilled with

EXISTING borrow DITCH

20' to 25' CROWN

ELEV +4.5 to +5.0

+2.25'(+/-0.25')

TARGET FILL HEIGHT

-6.0

CHANN…

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File details come from the government source that posted it. Updated Nov 14, 2017.