Amendment_2_Hydro_Demo.pdf

W81G6732189888

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

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

FAR (48 CFR) 53.243

The purpose of this amendment is for clarification and w ater usage:

--Priced line items: line 0002 is informational only, the priced line items are 0001, 0002AA, 0002AB, and 0003.

--Job superintendent: as listed in part 3a for w ork hours, this shall be the Government job superintendent.

--Accident prevention plan: w hile there may be nothing specific in the EM 385 about hydro demolition, the contractor shall w rite the plan for demolition w ork and the hazards that are inherent w ith this w ork.

--Wall anchoring: the contractor may be allow ed to use w all anchors. This request w ill be a part of the contractor’s demolition.

--Potable w ater: the contractor shall not be allow ed to use any non-potable w ater source for demolition w ork during the course of this contract; all w ater used during the demolition w ill be potable. The government w ill allow the use of their onsite w ater source, the contractor can also supply their ow n source if they so choose. Please see update in SOW.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 6

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

16C. DATE SIGNED

BY 22-Nov-2013

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 W912ES-14-B-0002

X 9B. DATED (SEE ITEM 11)

08-Nov-2013

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 1 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

22-Nov-2013

CODE

CONTRACTING DIVISION

USACE - ST. PAUL

180 5TH STREET E SUITE 700

ST. PAUL MN 55101-1678

W912ES 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912ES-14-B-0002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00100 - BIDDING SCHEDULE/INSTRUCTIONS TO BIDDERS

The following have been modified:

STATEMENT OF WORK

LOCK AND DAM NO. 8 WINTER MAINTENANCE

CONCRETE REMOVAL USING HYDRO-DEMOLITION

SCOPE OF WORK

1. General. The work shall consist of removing approximately 3,505 ft2 of unsound and delaminated vertical concrete surfaces within the lock chamber at Lock and Dam No. 8 located in Genoa, WI. The Contractor shall provide all labor, equipment, materials, and supplies necessary for this work. The Contractor shall anticipate some limited obstructions and/or interferences that may include but are not limited to: abandoned anchor bolts, reinforcement and embedded conduit.

If such obstructions are encountered the Government will remove them. The compressive strength of the existing concrete is between 3,000 psi and 3,500 psi.

a. Pre-Bid Site Visit. Contractors are encouraged to visit the site prior to bidding. A non-mandatory pre-bid on site information meeting is scheduled for Tuesday 19 November 2013 at 1pm Central Time. This is the only date and time potential bidders will be allowed access to the site prior to contract award.

Contractors must contact Mr. Justin Rose at justin.h.rose@usace.army.mil before 15 November 2013, 11:30am Central Time if they wish to attend.

2. Pre-Construction Conference. A pre-construction conference will be held at Lock and Dam No.

8 prior to the start of work, to discuss the overall project including the layout of each vertical monolith concrete surface to be removed. The concrete removal areas will be clearly marked on each monolith by the Government.

3. Construction Schedule. Notice to Proceed will be given in accordance with Clause 52.211-10.

The Contractor shall submit a demolition work plan that details the sequence and scheduling of the proposed work. All preconstruction submittals must be received and approved by the Government before commencement of physical work on site. The lock structure will be dewatered and available for concrete removal beginning January 2, 2014. All demolition must be complete no later than January 31, 2014.

a. Work Hours. The contractor shall be permitted to work from Monday through Friday from 0700 to 1700, excluding Federal Holidays. All work shall be conducted during daylight hours only. Work outside of the normal Monday through Friday schedule may be authorized if coordinated at least five working days prior with the Government job superintendant.

4. Submittals.

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. The contractor will allow five working days for Government review of all submittals requiring Government approval. All submittals will be provided to the Government technical POC for review. The following submittals are required:

a. Preconstruction Submittals “Accident Prevention Plan (APP)” G “Demolition Work Plan”; G

5. Vertical Concrete Removal Work: The Contractor shall submit a demolition work plan in accordance with the following specifications for Government approval and acceptance.

a. Demolition. All existing concrete shall be removed by hydro demolition to a minimum depth of 6 inches in the areas shown on and described in the plans.

1. Project Drawings. The Contractor shall consult the attached project drawings of the vertical surfaces to be removed. Contractors should note there may be some variations in the removal areas if additional unsound concrete is discovered.

2. Resounding of Repair Areas. The Government shall re-sound all repair areas to determine the final limits of removal.

b. Cold Weather Requirements. The contractor shall be aware of the weather conditions during the month of January and shall be prepared for continuing operations during freezing temperatures. It is very critical for maintaining the project schedule that the concrete removal is completed during the month of January and no later than January 31, 2014. The contractor is responsible for providing all necessary protections/actions against cold weather to ensure demolition will be completed on schedule. These protections/actions may include but are not limited to heating of the water and or a providing a heated enclosed shelter surrounding the equipment.

c. Concrete Surface Finish. Following removal, the exposed concrete surface must be cleaned to remove all debris, slurry, or any other substance which could inhibit newly cast concrete to bond. The exposed surface must be left as dry as practical to help reduce/eliminate freezing and refreezing. Permissible cleaning methods include but are not limited to: vacuum equipment, water jets operating at up to 10,000 psi, pressure washers and air lances. Cleanup operations shall follow immediately behind the removal to prevent the drying and re-solidification of the debris. The surface shall be thoroughly rinsed to remove all cement fines (slurry).

d. Final Inspection. The prepared surfaces shall be visually inspected by the Government.

The inspection shall be performed within an arm’s length distance from the prepared surface. The Government will provide any necessary ladders or lift equipment needed to conduct the final inspection. This inspection shall verify that the surface is free of unsound concrete, dust, debris, oils, slurry and other bonding inhibiting materials.

6. Government Provided Services. The Government will provide the following to the Contractor during the concrete removal:

a. On-Site Setup and Storage Areas. The Government will assign the Contractor an on-site staging/storage area(s) for use during the concrete removal process. These areas will be assigned during the pre-construction meeting.

b. Lock Chamber Access. The Government will provide the Contractor with access to the dewatered lock chamber to complete the concrete removal. The Government will try to ensure the contractor has clear travel within the dewatered lock chamber. The Government will try to ensure debris or equipment do not create an obstacle to accessing the demolition areas. The Government is responsible for snow and ice removal. Any special snow or ice removal necessary to complete the work specified in this contract shall be performed by the Government and must be coordinated with the Government job superintendant at least one working day prior.

c. Crane Service. The Government will provide the Contractor with crane services for equipment movements into the dewatered lock chamber. The Contractor shall coordinate with the Government a minimum of 3 days prior to the equipment movement.

d. Electrical Service. The Government will provide the Contractor with 120V and 220V electric service to power any equipment the contractor may need during the removal process.

e. Water Supply. The Government will provide the Contractor with a potable water source for the contractor to use during the removal process, the contractor may supply their own water source if they choose. The water shall be potable, and shall not stain, discolor, or affect exposed surfaces of the structure, or damage the environment of the project area.

f. Debris Disposal. The Government will complete the debris removal including but not limited to concrete rubble, cement slurry and wastewater from the lock chamber floor after each day of demolition removal.

1. Removal of abandoned anchor bolts, reinforcement and embedded conduit.

The Contractor shall inform the Government of any abandoned anchor bolts, reinforcement and embedded conduit, during the concrete removal. The Government will remove all abandoned anchor bolts, reinforcement and embedded conduit.

g. Concrete Repairs. The Government will complete the perimeter saw cutting after demolition is complete. This will be done to create a clean surface and proper joint for the new concrete to bond with the original sound and remaining concrete. The Government will install anchor bolts, and formwork for concrete placements. The Government will perform all phases of repair (demolition, surface preparation and concrete placement) for the following monoliths: Land wall, L-3, 4, 21, and 22, Intermediate wall, I-3, 4, 21, and 22.

1. Sequence. The areas shown in the project drawings will be resounded by government personnel prior to the start of demolition. After final removal areas are determined the contractor shall remove all unsound concrete within the removal area. The contractor shall ensure the exposed vertical concrete surface is suitable for casting new concrete against it. That is, the surface must be clean and free from any grease, oils, slurry, dust, or other substances that could inhibit the newly cast concrete from bonding to the exposed surface. The Government will perform perimeter saw cutting as well as remove any old anchors, conduits, or reinforcing steel. The Government will install steel studs to help ensure a bond is formed between the new and old concrete. The Government will then install the formwork and provide any necessary pre-placement heating. The Government will place and cure the new concrete in all repair areas. The Government will perform all phases of repair (demolition and concrete repair) within the miter gate recesses.

7. Operator Experience. The high pressure equipment shall be operated by individuals with no less than 5 years of experience in the use and maintenance of this equipment.

8. Safety. All work shall be in conformance with the Corps of Engineers Safety and Health Requirements Manual EM 385-1-1 (15 September 2008 edition).

9. Site Restoration and Cleanup. The Contractor is responsible for restoring their staging / storage area to its pre-work condition. This shall include disposing of any garbage or job related debris in accordance with all state and local laws and ordinances. All surface areas damaged by the Contractor’s operations shall be restored to their pre-work condition at the Contractor’s own expense. The government is responsible for debris removal within the lock chamber.

10. Measurement and Payment. The payment provided for in the contract shall constitute full compensation for furnishing all materials and for performing all work under the contract in a complete and acceptable manner. The contract work shall include providing all plant, equipment, tools, supplies, labor, supervision, incidental materials, quality control, environmental protection, and meeting safety requirements, and for performing all work required for which separate payment is not otherwise provided. Compensation for all work shown, specified, or essential to completion of the project (whether or not the specific material or operation is indicated) shall be included on the bidding schedule. The payment provided for in the contract includes compensation for all risk, loss, damage, and expense arising out of the nature of the work or its prosecution, subject to conditions of the contract. Payment for each contract line item will constitute full compensation for furnishing the materials and constructing the work complete in place as specified. Payment items for the work of this contract for which contract payments will be made are listed in the BIDDING SCHEDULE and described below.

Bid Item 0001 Performance and Payment Bonds: Bonds will be paid for on a Lump Sum basis in accordance with FAR 52.232-5.

Unit of Measure: Lump Sum

Bid Item 0002AA Vertical Concrete Removal – 6” Depth, First 3,505 Square Feet: Payment will be made for furnishing all materials, equipment and labor and performing all operations necessary for Hydro demolition as shown and specified. Items of work include, but are not limited to, mobilization and demobilization, water supply, winter protection, and site restoration.

Unit of Measure: Demolition, for 6” in depth, shall be measured for payment by the square foot.

Bid Item 0002AB Vertical Concrete Removal – 6” Depth, Over the First 3,505 Square Feet:

Unit of Measure: Demolition, for 6” in depth, shall be measured for payment by the square foot.

Optional Bid Item 0003 Vertical Concrete Removal – Deeper than 6”:

Unit of Measure: Demolition, for over 6” in depth, shall be measured for payment by the square foot.

Attachments:

Project Drawings:

G-002 Location and Vicinity Map G-003 Lock and Dam No. 8 Site Map G-006 Scope of Work, Typical Plan S-101 Lock Masonry, Plan, Location of Work Items S-201 Lock Masonry, Land Wall Monolith L-1 to L-9 S-202 Lock Masonry, Land Wall Monolith L-10 to L-18 S-203 Lock Masonry, Land Wall Monolith L-19 to L-24 S-204 Lock Masonry, I-Wall Monolith I-1 to I-11 S-205 Lock Masonry, I-Wall Monolith I-12 to I-20 S-206 Lock Masonry, I-Wall Monolith I-1 to I-5 S-301 Lock Masonry, Typical Details

Reference Drawings:

M-L8-20/1M Monolith Layout M-L8-20/3 Masonry – Upper Gates – Main Lock M-L8-20/5 Masonry – Walls Between Gates – Main Lock M-L8-20/8 Masonry – Lower Gates – Main Lock

(End of Summary of Changes)