Amd0004.pdf

AMENDMENT NO. 0004 Rehabilitation and Painting Tainter Gates W912BV-09-R-1014 Fort Gibson Dam, Oklahoma and John Redmond Dam, Kansas

AMENDMENT OF SOLICITATION

1. CONTRACTOR ID CODE

NOT APPLICABLE (NA) PAGE 1 OF 1

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

0004 22 June 2009 NA NA

6. ISSUED BY

CODE

7. ADMINISTERED BY (If other than Item 6)

CODE

DISTRICT ENGINEER

TULSA DISTRICT, CORPS OF ENGINEERS

1645 SOUTH 101ST EAST AVENUE

TULSA, OK 74128-4609

NA

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (%) 9A. AMENDMENT OF SOLICITATION NO.

W912BV-09-R-1014

% 9B. DATED (SEE ITEM 11)

20 May 2009

10A. MODIFICATION OF CONTRACT/ORDER NO.

NA

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE NA

11. THIS ITEM APPLIES ONLY 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 Offers X is extended, is not extended.

The Proposal Due Date is hereby changed to 7 July 2009, 4:00 p.m. local time.

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 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 ACKNOWLEDGEMENT 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)

NA

NA 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.)

SECTION 00050, SCOPE OF WORK (FT. GIBSON DAM ONLY) - Delete Section 00050 and replace with new Section 00050 attached hereto.

NOTE: IN THIS AMENDMENT “SOLICITATION NO.”, “OFFER”, AND “OFFEROR” MEAN “INVITATION NO.”, “BID”, AND “BIDDER”, RESPECTIVELY Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as hertofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

NA

15B. CONTRACTOR/OFFEROR 15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 16C. DATE SIGNED

NA NA

(Signature of person authorized to sign) (Signature of person authorized to sign)

NSN 7540-01-162-8070 30-105-02 STANDARD FORM 30 (REV. 10-8)

PREVIOUS EDITION UNUSABLE Prescribed by GSA

SECTION 00050 FORT GIBSON LAKE 1 OF 9

Revised by Amendment 0004

SECTION 00050

SCOPE OF WORK

This action is being procured as part of the American Recovery and Re- Investment Act (ARRA) of 2009.

PART 1 GENERAL

1.1 GENERAL PROJECT DESCRIPTION

The Contractor shall provide all materials, equipment, labor, instruments, tools, subcontractors, supervision, and management to complete all work required by this task order. The Scope of Work in general includes the following: sandblast and paint tainter gates, replace existing side seals and rehabilitate lead bottom seal on the weir sills, replace hoist chains, prepare and paint hoist machinery, machinery platforms and catwalks, and clean and paint trunnion anchorages and assemblies. The tainter gates are approximately 40 feet wide and 35 feet high. The entire gate including beams, girders, pockets behind cross braces, and strut arms shall be cleaned of all debris, including but not limited to: debris, sludge, water and biological formations. Blast and paint equipment, equipment platforms, and the access walkways.

a. Tainter Gates – Clean all surfaces to SSPC SP5 (White Metal).

Each gate (to include tie back beam and trunnion arm) shall be painted with system no. 5-E-Z. Either pre-sandblast the corroded areas or sandblast to white metal and apply up to the first coat of paint in the 5-E-Z paint system on the gate. A combined inspection shall then be done with the Corps and Contractor to verify areas that get epoxy. Inspect the gate for corrosion damage 1/8 inch or deeper. Cleaning and painting shall be so programmed that dust or other contaminants from the cleaning process do not fall on wet, newly painted surfaces. Structural repairs shall be made to the gates to fix corrosion damage.

b. Provide and replace the side seal assemblies, including but not limited to seals, bolts, nuts, washers, screws, retainer and spacer for proper fit to minimize water leaks when gates are shut.

c. Repair lead sill in the weir to provide smooth and level surface for bottom of gate seal. Ensure the gate bottom is straight and even to provide a flush watertight seal between the lead sill and the gate. Tolerances shall be +/- 1/8" from median line for gate and 0 to +1/8" flush with 8" channel for lead. Additional lead required to repair bottom seal shall meet ASTM B 29 - Standard Specification for Refined Lead (2003).

d. Replace all existing hoist chains and provide two complete spare chains.

e. Hoist Platforms - Work will include, but not necessarily be limited to, replacing hoist platform anchor bolts, nuts, and washers for gate numbers 2, 5, 8, 9, 12, 13, 17, 18, 20, 21, 22, SECTION 00050 FORT GIBSON LAKE 2 OF 9

27, and 29 and treating pack rust on hoist platform anchor bolts, nuts, and washers on all gates.

f. Hoist Machinery Platform – Work shall include, but not necessarily be limited to, cleaning, preparing for painting, and painting all of the hoist machinery for each of the thirty platforms including the top surface of the beams supporting the platforms underneath, catwalks, rails, drive shafts, drive shaft couplings, and pillow blocks. Paint shall be System No. 15.

g. Trunnion anchorages and assemblies – Work will include, but not necessarily be limited to, removing residual sealant, debris, laminated rust, and pack rust, unclogging drain holes, cleaning drain holes and pans of debris, removing Plexiglas covers over trunnion assemblies, cleaning trunnion yoke 6” access holes and drain holes, blasting, painting, and greasing the trunnion assemblies, and sealing the pier landings. Painting work consists of blasting to white metal, priming, and painting each trunnion anchorage and assembly in its entirety with System No.

5-E-Z.

h. Pier Landings – Work will include, but not necessarily be limited to, applying a protective finish coating to the concrete at the pier landings starting from where the tie back beams first jut into the concrete extending along the access hallway to the ladder. All of this work shall be done with the purpose in mind to help prevent future rusting of the tie back beam directly below the pier landing.

i. Clean all existing Government property including the gates, weirs, and bridge of all blast media and debris resulting from the Contractor’s construction activities.

Work shall be performed in accordance with the requirements of 29 CFR 1910, 29 CFR 1926, the most recent version of EM 385-1-1, and other references as listed herein. Matters of interpretation of the standards shall be submitted to the Contracting Officer for resolution before starting work. Where the regulations conflict, the most stringent requirements shall apply. The Government stresses the importance of safety on all US Army Corps of Engineers job sites.

1.2 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 30 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Detailed Work Plan; G

A detailed work plan shall be submitted. The plan shall include details for the following:

SECTION 00050 FORT GIBSON LAKE 3 OF 9

a. Pre-sandblast repair of corrosion damage, correct deficiencies,

b. Sandblast, prepare for painting, and painting,

c. Water Control,

d. Traffic Control,

e. Lead bottom seal repair,

f. Side seal replacement,

g. Hoist chain replacement,

h. Rehabilitation of hoist anchor bolts, imbedded steel plate, and pack rust.

1.3 PROTECTION OF EQUIPMENT

Due to the enormous cost of possible repair, the importance of protecting the trunnion assemblies (bronze bushings, steel castings, trunnion pins, keys, keeper plates, etc.) during blasting and painting cannot be over emphasized. Proper protection shall rest solely on the Contractor. Any damage to the trunnion assemblies, as with all damage to Government property, shall be repaired by the Contractor entirely at the Contractor’s expense. Trunnion assembly protection methods shall be submitted to the Contracting Officer for approval before any work begins.

The Contractor shall ensure protection of the hoist equipment to include the controls and gear boxes during all work.

1.4 LEAD PAINT

The existing paint system on the Ft. Gibson tainter gates contains lead. Test results from December 2006 indicate a concentration of 943 mg/Kg on the downstream side, 617 mg/Kg on the upstream side, and 1,460 mg/Kg on the trunnion arm of the tainter gate tested.

1.5 SITE VISIT

An authorized contractor representative in conjunction with the USACE Contracting Officer and/or technical representative(s) shall conduct a site visit at the proposed construction sites. The purpose of this site visit will be to meet with project representative(s) and obtain a more detailed understanding of the work required in this Scope of Work.

This site visit will also allow the contractor the opportunity to examine the project site conditions.

1.6 PRICE PROPOSAL

The price proposal for the task order shall follow the guidance in section 00120 of this request for proposal. Proposals shall be submitted in accordance with the Bidding Schedule. The contractor shall use the information in this Scope of Work in conjunction with information obtained at the site visit as the basis of his proposal.

SECTION 00050 FORT GIBSON LAKE 4 OF 9

1.7 PRE-WORK CONFERENCE

The Contractor shall attend a pre-work conference with the Contracting Officer’s Representative prior to commencing work on the project.

1.8 WORK HOURS

Work hours shall be requested in writing by the Contractor and approved in writing by the Contracting Officer. The Contractor shall not work on Federal holidays unless prior approval is granted in writing by the Administrative Contracting Officer.

1.9 GOVERNMENT FURNISHED UTILITIES

At Ft. Gibson Lake, 480V/3 phase/30 amp electric service is available at each tainter gate operating machinery platform (Elevation 584.75).

120V/15 amp single-phase service is available at each pier. Non-potable (raw lake) water is available at the spillway. Electricity and non-potable water are available at no additional cost to the Contractor if proper energy conservation methods are implemented. The Contractor shall be responsible for conditioning the power as necessary and providing conductors, hoses, etc. from existing service locations.

1.10 HISTORICAL DATA

Ft. Gibson Lake monthly charts of reservoir data since November 1994 may be viewed at http://www.swt-wc.usace.army.mil/FGIBcharts.html. Any conclusions drawn by the Contractor from this data are done so at the Contractor’s risk.

1.11 LIMITATION ON GATES OUT OF SERVICE

Five tainter gates may be worked on or out of service at one time. If five gates are out of service at one time, four gates must able to be returned to service within 24 hours notification from the Government.

1.12 WATER RELEASES

Water releases may impact the Contractor’s operations. Two types of water releases may be made: low flow releases and flood releases. Low flow releases to maintain water quality for fish and wildlife habitat will be made from the outlet works year around as necessary to meet regulatory requirements. The Government will give 24 hours advance notice to the Contractor when water releases and/or gate changes are made for water quality purposes. Wind direction, the gates currently being worked on, and the amount of water to be released will be taken into consideration in an attempt to minimize impact on the Contractor’s work. Flood releases will be made as required for flood damage reduction. In flood release emergencies, every effort will be made to give the Contractor 24 hours notification of gate changes. The Contractor shall constantly monitor weather conditions and forecasts and be prepared for potential emergency conditions. The Contractor shall be prepared to secure and protect current working areas and personnel from flood releases. The Contractor’s on-site superintendent will be notified of gate changes by the Government. Phone and/or voice

SECTION 00050 FORT GIBSON LAKE 5 OF 9

mail notification will be made when Government personnel are unable to contact the superintendent in person.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION

3.1 TRAFFIC CONTROL

Prior to starting work, the Contractor shall submit a traffic control plan for Government review. The traffic control plan shall cover all work and shall be in accordance with all requirements of this task order and the Manual on Uniform Traffic Control Devices (MUTCD), 2003 Edition. The Contracting Officer may take up to 14 days each to review the traffic control plan and any required revisions. The Contractor shall also submit the traffic control plan to the Oklahoma Department of Transportation (ODOT). The Contractor shall receive ODOT approval before road closure is allowed. All coordination with ODOT shall be the responsibility of the Contractor.

At Ft. Gibson Lake, the road/bridge is State Highway 251A and carries a considerable amount of traffic, especially during morning and afternoon commute periods. Closures shall take place only during work hours specified below and traffic control devices shall be removed after each day’s work. The Contractor shall remove position indicators. Two-lane bridge closure will only be allowed during use of a crane (setting scaffolding or equipment on the trunnion girders, removing position indicators, etc.) and shall take place only between the hours of 9 a.m.

and 3 p.m. Monday through Friday. The Contractor shall notify the Contracting Officer, ODOT, the public, and local, county, and state officials seven (7) calendar days before all partial or complete bridge/road closures. No complete bridge/road closures shall take place two calendar days before, during, or two calendar days after a Federal holiday unless prior approval is granted in writing by the Contracting Officer. Long-term one lane bridge/road closures may be allowed by the Government if proper traffic control in accordance with the MUTCD is provided at all times and the long-term closure is approved by ODOT.

3.2 CRANE PLACEMENT AND BRIDGE LOADING

The Contractor shall not exceed the load limits of the bridge. If the Contractor desires to use a crane on the bridge, he must first analyze the bridge for that crane lifting all proposed loads. The Contractor’s crane/bridge analysis shall be performed by a Licensed Professional Engineer with documented experience in crane dynamic load analyses.

The Contractor shall submit to the Contracting Officer for approval the load analysis and an operation plan showing the size and type of crane, where and how it will be operated, and how the outriggers will be placed. Government review of the plan and any required resubmittals may take up to 30 days for each review. Depending upon the weight, boom, and placement of the outriggers, the bridge may not support crane operations.

3.3 TAINTER GATE REHABILITATION

SECTION 00050 FORT GIBSON LAKE 6 OF 9

3.3.1 Lead Content

The existing paint at Ft. Gibson has a lead content of 943 mg/Kg on the downstream side, 617 mg/Kg on the upstream side, and 1,460 mg/Kg on the trunnion arm of the tainter gate tested. Containment and monitoring measures shall be as specified in Section 09 96 50.

3.3.2 Removal of Bird Screens and Debris on Tainter Gates

Before blasting, all bird screens and debris on the tainter gates shall be removed. All Plexiglas screens covering the trunnion yoke holes shall be removed and discarded.

3.3.3 Preparation

The extent of damage caused by corrosion cannot be fully determined until the corroded areas are blasted. To reveal the extent of damage, the Contractor shall either pre-blast the corroded areas or blast an entire gate to white metal and apply up to the first two coats of paint in the 5-E-Z paint system.

3.3.4 Structural Repair

All structural repairs shall be conducted with the tainter gate in an unloaded condition. An unloaded condition constitutes the gate resting on timbers with bulkhead in place upstream of the tainter gate. No water shall be touching the tainter gate during repair. Any required replacement of structural members shall be performed one at a time.

3.3.4.1 Corrosion Repair Greater Than 1/8 Inch Deep

For all corrosion damage, the Contractor shall document the corrosion damage by taking digital photographs of the damaged areas before and after the repair. The photographs shall have a legible scale/ruler in the picture and a means to indicate size and depth of corrosion.

Locations of corrosion-damaged areas shall be documented by sketches of the gates with measurements from a known point or feature and cross-referenced with the digital photographs. Repair these areas with weld build-up as specified Section 05055 WELDING. To insure no holes, pits, or low areas remain, the entire weld build up area shall extend completely above the original metal profile and be ground back to the original metal profile. Blast to white metal an area covering a minimum 1 foot beyond the weld and apply the first coat of the 5-E-Z paint system. For areas that require weld build-up opposite of a side that has already been painted, these areas shall be jointly inspected on the painted side after the weld is completed. If the paint has been damaged due to welding operations, the area on the painted side shall be repaired by a method to be approved by the Contracting Officer.

3.3.4.2 Corrosion Repair Less Than 1/8 Inch Deep

For all corrosion damage less than 1/8 inch deep, blast to white metal if the area was only pre-blasted then immediately fill the damaged area with epoxy coating Belzona 1311, Devcon Plastic Steel Putty, or Thortex Metaltech E.G. Sand the epoxy smooth, clean with solvent, and apply the first coat of the 5-E-Z paint system.

SECTION 00050 FORT GIBSON LAKE 7 OF 9

3.6.5 Blasting and Painting

Blast and paint each gate in accordance with the Section 09965A Painting: Hydraulic Structures. The gates shall be blasted to a surface preparation standard of SSPC-SP 5 (white metal). Paint system shall be 5-E-Z. Each subsequent coat of paint shall completely hide previous coat.

3.6.5 Bulkhead Transportation and Placement

The Contractor shall transport and place the bulkhead at Ft. Gibson.

The Contractor shall submit a Bulkhead Transportation and Placement Plan before moving the bulkhead. The plan shall include the proposed method and equipment for bulkhead transportation and placement. Due to the effort required to move the bulkhead during high winds and inflows, a temporary storage location near the structure will be considered if proposed by the Contractor in the bulkhead transportation and placement plan.

3.3.7 Bird Droppings

The Contractor shall minimize exposure by controlling aerosolized dust by saturating built up debris piles. Personnel involved in the cleanup should wear respirators, rubber gloves and disposable coveralls.

Collect wetted bulk material and place in durable secure container and dispose. Not regulated as hazardous material.

3.4 HOIST PLATFORM REHABILITATION AT FT. GIBSON LAKE

3.4.1 Anchor beam bolts

The contractor shall replace all anchor bolts and washers to supporting beams on platforms 8, 9, 13, 18, 22, & 29.

3.4.2 Hoist Platform Girders

The contractor shall rehabilitate pack rust on all the beams at platforms 8, 9, 13, 18, 22, & 29.

3.5 PIER LANDING REHABILITATION AT FT. GIBSON

3.5.1 Seal pier landing

A protective finish coating shall be applied to the concrete at the pier landings starting from where the tie back beams first jut into the concrete extending along the access hallway to the ladder. The protective coating shall be Solarshield Bright White by Macklanburg- Ducan, Rev Cote by Revere, or any approved equal concrete sealant as determined by the Contracting Officer.

3.6 TRUNNION ANCHORAGE AND TRUNNION ASSEMBLY WORK

3.6.1 Lead Content

SECTION 00050 FORT GIBSON LAKE 8 OF 9

The existing paint at Ft. Gibson has a lead content of 943 mg/Kg on the downstream side, 617 mg/Kg on the upstream side, and 1,460 mg/Kg on the trunnion arm of the tainter gate tested. Containment and monitoring measures shall be as specified in Section 09 96 50.

3.6.2 Removal of Gate Position Indicators

Before blasting begins on each trunnion anchorage and assembly, the Contractor shall remove the gate position indicators from the trunnion.

The gate position indicators weigh approximately 200 pounds each. The Contractor shall transport the gate position indicators to a storage facility on Government property as designated by the Contracting Officer. Gate position indicators will not be replaced.

3.6.3 Removal of Plastic (Plexiglas) Covers on Trunnion Assemblies

Before blasting, the Plexiglas covers of the trunnion assemblies shall be removed. Screw holes shall be filled with epoxy material such as Devcon Plastic Steel Putty, Thortex Methal-Tech EG, or a similar material. Covers shall not be replaced.

3.6.4 Removal of Bird Screens and Debris on Trunnion Assemblies

Before blasting, all bird screens and debris inside the 6” access holes in between the strut arms shall be removed. All ¼” drain holes shall be completely cleaned of debris. After blasting and painting, bird screens shall be replaced in kind in all trunnion assemblies.

3.6.5 Removal of Rust and Debris Between Anchor Beams and Concrete Piers

Before blasting, all loose laminated rust, pack rust, scaled rust, debris, and sealant shall be removed from the anchor beams. Removal shall extend 6” inside the face of the concrete piers. The Contractor’s method and equipment for removal shall be submitted to the Contracting Officer for approval. The Contractor shall provide 24 hours notice before any painting beings to allow the Government to inspect the anchor beams after blasting and before painting.

3.6.6 Blasting and Painting

The Contractor shall blast and paint each trunnion anchorage and assembly in accordance with the specification Section 09 96 50 Painting of Hydraulic Steel and Cast Iron Structures, Including Removal of Lead- Based Paint. Paint for all structures shall be System No. 5-E-Z. Each subsequent coat of paint shall completely hide previous coat. Blasting and Painting of the trunnion assemblies shall extend from the extreme downstream end of the trunnion assembly, along the tainter gate strut arms to a point 3 feet past the centerline of the trunnion pin. Using specialized equipment, and/or nozzles, the Contractor shall blast and paint the anchor beams 6” inside the face of the concrete piers.

3.7 GREASING TRUNNION ASSEMBLIES

After sealing pier landings, the Contractor shall grease the trunnion assemblies. Grease shall be Texaco Starplex 2 or equal. Each assembly

SECTION 00050 FORT GIBSON LAKE 9 OF 9

shall be greased before the Contractor is allowed to start work on another trunnion anchorage.

3.8 PROTECTION OF GOVERNMENT PROPERTY

In addition to all requirements to protect Government property in the Contract Clauses, and Special Contract Requirements, the Contractor shall take particular care to protect the tainter gate hoist operating machinery assemblies and trunnion assemblies, which are highly susceptible to damage by dust, blast media, and debris. The contractor shall not drill holes or otherwise alter or deface any existing structure including the bridge, bulkhead, trunnion anchorages, trunnion assemblies, tainter gates, piers, bullnoses, weirs, catwalks, or equipment decks unless requested in writing with proposed repair methods and approved in writing by the Contracting Officer.

Scaffolding, work platforms, hoists, chain falls, or other equipment shall not be attached to catwalks or equipment decks unless requested in writing with attachment details and calculations showing the catwalks or equipment decks are capable of supporting the proposed loads and approved in writing by the Contracting Officer.

3.9 CLEAN UP

After completion of construction, the Contractor shall clean all Contractor-generated blast media and construction debris from all gates, weirs, bridge, catwalk, machinery, decks, and assemblies, and all other Government property. The Contractor shall ensure that all drain holes are completely open.

3.10 SUBMITTALS

Certification and manufacturer’s data shall be submitted for the following items:

Welding equipment and operators Welding rods Paint system components Blast media Bird screens Anchor bolts, washers Rust inhibitor Concrete sealant

All submittals shall be in accordance with specification Section 01 30 00 SUBMITTAL PROCEDURES and Section 01 31 20 Quality Control System (QCS). Items shall be submitted and numbered under the technical specification section to which the materials and equipment apply and these numbers shall properly interface with WinRMS and QCS.

(END OF SECTION 00050)