J.4 SPECS_Rock Harbor Dock Rehabilitation_100 Design_080620.pdf

Technical Specifications

National Park Service Rock Harbor Dock Rehabilitation

Isle Royale National Park

Michigan

100% Design Submission

August 6, 2020

34 William Way Bellingham, MA 02019

(508) 966 9092 childseng.com

Rock Harbor Dock Rehabilitation 100% Design – August 6, 2020 TABLE OF CONTENTS

TABLE OF CONTENTS

DIVISION 01 GENERAL REQUIREMENTS

01 10 00 Summary

DIVISION 02 EXISTING CONDITIONS

02 41 19 Selective Demolition 02 41 20 Siltation Curtains/Debris Booms

DIVISION 03 CONCRETE

03 20 10 Reinforced Concrete 03 41 00 Precast Structural Concrete

DIVISION 05 METALS

05 50 00 Metal Fabrications (Steel) 05 50 00 Metal Fabrications (Stainless Steel) 05 50 10 Aluminum Ramps and Platforms 05 50 20 Mooring Hardware 05 80 00 Miscellaneous Metals

DIVISION 09 FINISHES

09 95 00 Coatings

DIVISION 22 PLUMBING

22 13 16 Sanitary Waste Piping

DIVISION 23 HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 11 13 Facility Piping

DIVISION 26 ELECTRICAL

26 05 19 Low-Voltage Electrical Power Conductors and Cables 26 05 26 Grounding and Bonding for Electrical Systems 26 05 29 Hangers and Supports for Electrical Systems 26 05 33 Raceways and Boxes for Electrical Systems 26 27 26 Wiring Devices 26 28 16 Enclosed Switches and Circuit Breakers 26 56 13 Lighting Poles and Standards 26 56 19 LED Exterior Lighting

DIVISION 31 EARTHWORK

31 62 17 Steel Piles

DIVISION 35 WATERWAY AND MARINE CONSTRUCTION

35 59 13 Marine Fenders https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-01 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-02 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-03 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-05 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-09 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-22 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-23 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-26 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-31 https://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/division-35

Rock Harbor Dock Rehabilitation 01 10 10 - 1 100% Design – August 6, 2020 SUMMARY

SECTION 01 10 00 - SUMMARY

PART 1 - GENERAL

1.01 SCOPE OF WORK

A. This contract includes the furnishing of all equipment, materials, labor and supervision necessary to carry out all marine work associated with this contract. The required work shall include but is not necessarily limited to:

1. Furnishing and installation of siltation curtains and debris booms to isolate the proposed work area from the harbor.

2. Partial removal of existing concrete deck, guard rails, joint material and hardware from all deck areas designated for restoration.

3. Install new precast concrete deck planks, deck topping, and joint material.

4. Install (drive) and field connect new steel pipe piles, pile caps, beams, bracing, and fender frames at all designated areas.

5. Install new D Type rubber fenders onto new pile fender frames.

6. Install new aluminum ramps and platforms.

7. Remove, clean, recoat and reinstall in new location all mooring hardware.

8. Removal and replacement of fuel and electrical lines and connections, including lighting and navigation light.

B. All work will be performed under a single contract, as shown on the drawings and as specified under these specifications.

C. The Work shall be conducted in one phase with minimal impact to the peak visit times as defined by the Government representative/Contracting Officer’s representative (COR).

1.02 LOCATION

A. Rock Harbor, Isle Royale, Michigan.

B. Isle Royale is located in Lake Superior.

1.03 LAYOUT OF WORK

A. Contractor will lay out all operations. Prior to the actual start of work the layout set by the Contractor must be approved by the Engineer. All work improperly located due to Contractor's errors or omissions will be corrected by him at no additional expense to the Government representative/Contracting Officer’s representative (COR).

B. Locations and elevations indicated on the drawings are subject to final field adjustment by

Rock Harbor Dock Rehabilitation 01 10 10 - 2 the Engineer prior to construction. The Contractor shall conduct a survey of the work area to confirm elevations and dimensions. Contractor will immediately notify the Engineer of apparent errors discovered on the drawings or in the initial layout. If changes in layout are required, Contractor will cooperate with the Engineer in prompt establishment of the field control for altered or adjusted work.

C. General: Contractor shall have limited use of the site for construction operations. Limit use of premises to work in areas indicated. Do not disturb portions of Project site beyond areas in which the Work is indicated.

1. Limits: Confine constructions operations to the waterfront dock and area immediately surrounding the dock.

D. Storage of Materials: Confine storage of materials to a contractor provided barge located to avoid interference with the visitor concessioner-operated vessel access to the dock. Small laydown areas may be provided by the Government and shall be confirmed and located at the pre-construction meeting.

E. Preservation of Natural Features:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

F. Visitor Dock Entrance:

Keep visitor dock surface clear and available to Government, Government's employees, emergency vessels, and visitors as best possible. Dock may be fully or partially shut down to Government and/or visitor for certain periods during construction. Possible shut down must be discussed with the Government prior to the start of work. Do not use these areas for storage of materials.

H. Public Use of site:

1. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public. Dock closures will be permitted upon specific approval of Government representative/Contracting Officer’s representative (COR). Submit requests 72 hours in advance of the work to the Government representative/Contracting Officer’s representative (COR) for approval.

2. At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Park Superintendent.

3. Work on Federal holidays or at night may not be performed without prior consent from the Government representative/Contracting Officer’s representative (COR).

Submit requests 72 hours in advance of the work to the Government representative/Contracting Officer’s representative (COR) for approval.

Rock Harbor Dock Rehabilitation 01 10 10 - 3

4. No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park unless approved by the Government representative/Contracting Officer’s representative (COR).

1.04 PRECONSTRUCTION CONFERENCE

A. Prior to start of construction, the Engineer will arrange an on-site meeting with the

Contractor. The meeting agenda will include the following:

Correspondence procedures Designation of responsible personnel Changes Payments to Contractor Subcontractors Safety and Accident prevention programs (including name of responsible supervisor) Tentative construction schedule Submittal of shop drawings, project data, and samples Review of Pre-construction survey

1.05 LIST OF DRAWINGS

A. The following drawings accompany this specification and are a part thereof. The drawings will not be used for any purpose other than contemplated by the specification.

Discipline Sheet Number Sheet No. Title

1 COVER SHEET

2 G100 NOTES

3 G101 SITE PLAN

4 B001 BORING LOG

5 S101 EXISTING CONDITION/DEMOLITION PLAN

6 S102 EXISTING CONDITION/DEMOLITION SECTIONS

7 S103 PROPOSED PLAN

8 S104 PROPOSED SECTIONS

9 S105 PROPOSED PILE AND PILE CAP PLAN

10 S106 CONCRETE FOUNDATION DETAILS

11 S107 LOWER BERTHING PLATFORM DETAILS

12 S108 FENDER SYSTEM DETAILS

13 S109 MISCELLANEOUS DETAILS

14 S110 ROCK ANCHOR DETAILS

15 S111 SMALL BOAT RAMP SUPPORT DETAILS

16 S112 RAMP SYSTEM PLAN AND DETAILS

17 S113 LIGHT POLE BASE DETAILS

18 M401 MECHANICAL PLAN

19 M501 MECHANICAL DETAILS

20 E401 ELECTRICAL PLAN

21 E501 ELECTRICAL DETAILS

Rock Harbor Dock Rehabilitation 01 10 10 - 4

1.06 WORK RESTRICTIONS

A. On-Site Work Hours: Work shall be generally performed during normal park working hours of 7:00 a.m. to 7:00 p.m., Monday through Sunday, except when otherwise indicated.

B. Existing Utilities:

1. Existing Utilities: Notify Government representative/Contracting Officer’s representative (COR) and utility companies of proposed locations and times for excavation.

2. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

3. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

C. Existing Utility Interruptions:

Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify Government representative/Contracting Officer’s representative (COR) not less than two days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Government representative/Contracting Officer’s representative (COR)’s written permission.

3. Hours for Utility Shutdowns: Beyond visitor access, before 7:00 a.m. and after 7:00 p.m. Contractor shall confirm hours prior to start of construction as hours may vary based on time of year.

D. Nonsmoking:

1. Smoking is only allowed in designated areas:

2. All cigarette butts must be properly disposed of and removed from the Island.

Cigarettes shall not be thrown into the water.

END OF SECTION

Rock Harbor Dock Rehabilitation 02 41 19 - 1 100% Design – August 6, 2020 SELECTIVE DEMOLITION

SECTION 02 41 19 – SELECTIVE DEMOLITION

1.01 DESCRIPTION

A. Provide all labor, materials, equipment and supervision necessary to complete the work specified in this Section.

1.02 SCOPE OF WORK

A. Includes, but is not necessarily limited to the following:

1. Removal and disposal of:

a. Select concrete deck and associated materials.

b. Select timber and steel ramps and railings.

c. Select areas of concrete stairs.

d. Rubber fender systems.

e. Navigation Marker and Lights.

f. Select fuel transfer pipes.

g. Select electrical connections and associated cabling.

2. Removal and reuse of:

a. Bollard and Cleats.

1.03 SUBMITTALS

A. Contractor shall submit for review detailed demolition plan including timber framing, timber pile and debris removal techniques.

B. Contractor shall submit for review a disposal plan including name and location of disposal site and approval from owner/operator of disposal site. In addition, the Contractor shall demonstrate that the disposal facility is properly licensed under state and federal law to accept and handle the materials to be deposited there.

C. The Contractor shall provide the Government representative/Contracting Officer’s representative (COR) with copies of all required permits, licenses, or other necessary approvals to perform the work. Fees for any permits, licenses or the like will be considered as part of the cost of the work and included in the Contractor's lump sum price.

PART 2 - PRODUCTS

2.01 No materials are to be supplied under this specification.

PART 3 - EXECUTION

3.01 The Contractor shall examine the site and make their own estimates of the types and quantities of demolition, which will be required to fulfill the Contract requirements.

Rock Harbor Dock Rehabilitation 02 41 19 - 2 100% Design – August 6, 2020 SELECTIVE DEMOLITION

3.02 All materials removed during demolition shall become the property of the Contractor unless otherwise noted.

3.03 Do not begin demolition until authorization is received from the Government representative/Contracting Officer’s representative (COR). Remove rubbish and debris from the project site; do not allow accumulations. Store materials that cannot be removed in a timely manner in areas specified by the Government representative/Contracting Officer’s representative (COR).

3.04 During over or in water demolition activities:

A. The Contractor shall enclose the area of the demolition work with a floating debris boom approved by the Engineer. Materials retained by the boom shall be removed on a daily basis as part of the work.

B. The Contractor shall provide floats or other means to collect and keep all demolition and construction material from entering the water. Retained materials shall be removed on a daily basis as part of the work.

3.05 Contractor shall use extreme caution when demolishing structures. Damage caused to adjacent structures or structures to remain which are caused by the Contractor shall be repaired by the Contractor as directed by the Engineer at no additional cost to the Government

3.06 Remove and transport debris and rubbish in a manner that will prevent spillage in the water, on pavements and streets or adjacent areas. Clean up spillage and debris daily.

3.07 Burning debris or materials on site is not permitted.

3.08 Disposal of Material

A. All materials removed during demolition except that which is to be re-used shall be satisfactorily disposed of offsite in accordance with all applicable City, State, and Federal requirements at the Contractor's expense.

B. The Contractor shall provide the Engineer with copies of the required permits, licenses or other approvals and the location of the proposed disposal sites for each of the classes and types of materials to be disposed of.

Rock Harbor Dock Rehabilitation 02 41 20 - 1 100% Design – August 6, 2020 SILTATION CURTAINS/DEBRIS BOOMS

SECTION 02 41 20 - SILTATION CURTAINS/DEBRIS BOOMS

PART 1 - GENERAL

1.01 DESCRIPTION

A. Provide all labor, materials, equipment and supervision necessary to complete the work specified in this Section.

1.02 SCOPE OF WORK

A. The scope of the work, without limiting the generality thereof, consists of furnishing all labor, materials and equipment for the following items of work and all work incidental thereto as shown on the Drawings and as herein specified. Siltation curtain and debris boom installation and use shall conform to the requirements stated in permits, licenses, and by environmental agencies have jurisdiction/authority over the work.

1. Furnishing and Installation of floating siltation curtain to prevent the dispersion of sediments disturbed by demolition and construction activities.

2. Furnishing and Installation of floating debris boom to prevent the dispersion of construction materials from demolition and construction activities.

1.03 SUBMITTALS

A. Submit manufacturer's description, design (including calculations) and specifications of sil-tation curtain material.

B. Submit manufacturer's description, design (including calculations) and specifications of debris boom material.

PART 2 - PRODUCTS

2.01 SILTATION CURTAIN AND DEBRIS BOOM

A. Siltation curtain and debris boom shall be comprised of nonporous material and have sufficient tensile and puncture strength to perform continuously during the construction period.

PART 3 - EXECUTION

3.01 ASSEMBLY

A. Siltation Curtain

1. The siltation curtain shall be continuously attached to the float over its entire length.

2. The siltation curtain shall extend from the waterline, through the water column, and terminate at the mudline for all water levels. The bottom shall be weighted to

Rock Harbor Dock Rehabilitation 02 41 20 - 2 100% Design – August 6, 2020 SILTATION CURTAINS/DEBRIS BOOMS ensure that it remains on the mudline at all times, taking into account waves, current, and seasonal water levels.

3. The siltation curtain shall be secured such that it prevents the dispersion of sediments disturbed by demolition and construction activities without being a hazard to navigation.

B. Debris Boom

1. The debris boom skirt shall be continuously attached to the float over its entire length.

2. The debris boom shall extend a minimum of 2 feet below the waterline. The bottom shall be sufficiently weighted to ensure stability, taking into account waves, current, and seasonal water levels.

3. The debris boom shall be secured such that it prevents the dispersion of construction materials from demolition and construction activities without being a hazard to navigation.

3.02 MAINTENANCE

A. The contractor shall be responsible for continuous maintenance of both the siltation curtains and debris booms to ensure performance.

B. Construction materials retained by both the siltation curtain and debris boom shall be removed and disposed of daily.

C. The siltation curtain and debris booms shall be removed at the end of the construction period and remain the property of the Contractor.

Rock Harbor Dock Rehabilitation 03 20 10 - 1 100% Design – August 6, 2020 REINFORCED CONCRETE

SECTION 03 20 10 - REINFORCED CONCRETE

PART 1 - GENERAL

1.01 GENERAL REQUIREMENTS

A. Provide all labor, materials, equipment and supervision necessary to complete work specified in this section.

1.02 SCOPE OF WORK

A. Provide all labor, materials, equipment and supervision necessary to complete work specified in this Section.

B. Scope of work includes, but is not necessarily limited to, furnishing and installing the following:

1. Cast-in-place pier deck and all associated reinforcing steel.

2. Miscellaneous concrete.

1.03 REFERENCES

A. Except as noted, work shall conform to the latest edition of the following codes specifications and standards:

1. American Society for Testing and Materials (ASTM)

2. American Concrete Institute (ACI):

a. "Building Code Requirements for Reinforced Concrete", ACI 318.

b. "Specifications for Structural Concrete for Buildings", ACI 301.

c. "Recommended Practice for Measuring, Mixing, and Placing Concrete", ACI 304.

d. "Recommended Practice for Cold (Hot) Weather Concreting", ACI 306 and

ACI 307.

e. "Recommended Practice for Concrete Formwork", ACI 307.

3. Concrete Reinforcing Steel Institute (CRSI):

a. Reinforced Concrete - "A Manual of Standard Practice".

b. "Recommended Practice for Placing Reinforcing Bars".

c. "Recommended Practice for Placing Reinforcing Bars".

d. "Guidelines for Inspection and Acceptance of Epoxy-Coated Reinforcing

Bars at the Job Site."

Rock Harbor Dock Rehabilitation 03 20 10 - 2

1.04 SUBMITTALS

A. Shop Drawings

1. Reinforcing steel shop drawings:

a. Shall be of such detail and completeness that all fabrication and placement at the site can be accomplished without the use of contract drawings for reference.

b. Shall include number of pieces, sizes, and grade of reinforcing steel, accessories, and any other information required for fabrication and placement.

c. Shall show joint layout and design.

2. Contractor shall check structural, and site drawings for anchor bolts, anchors, inserts, conduits, sleeves, and any other items which are required to be embedded in concrete, and shall make necessary provisions as required so that reinforcing steel will not interfere with the placement of such embedded items.

B. Concrete mix designs including method of mixing and delivery.

C. Grout manufacturer and catalog data, if required.

D. Name and address of Testing Laboratory for approval by Government representative/Contracting Officer’s representative (COR).

E. Example of expansion joint material including cut sheets.

F. Representative photographs of the Contractor’s proposed finished surface.

1.05 QUALITY ASSURANCE

A. Testing of Concrete

1. Test Specimens: The Contractor will be required to make, cure and have tested, a minimum of one set of four test specimens from the concrete of each day's pour and for each fifty cubic yards of concrete cast in accordance with ASTM Designations C172, C31 and C39. One cylinder shall be broken after seven days and three cylinders after twenty-eight day.

2. Slump: A slump test shall be made for each truckload of concrete in accordance with ASTM Designation C143. Slumps greater than design mix limit will be grounds for rejection of the concrete.

3. Air Content: The Contractor shall make an air content test from each day's pour of concrete by the pressure method in accordance with ASTM Designation C231. Air contents above or below the limits specified will be grounds for rejection of the concrete.

Rock Harbor Dock Rehabilitation 03 20 10 - 3

4. Testing: All personnel and laboratories testing concrete shall be licensed.

5. In the event the compressive strength of the cylinders, when tested, is below the specified minimum, the Government representative/Contracting Officer’s representative (COR) may require test cores of the hardened structure to be taken by the Testing Laboratory in accordance with ASTM C-42. If such test indicates that the core specimen is below the required strength, the concrete in question shall be removed and replaced without cost to the Government representative/Contracting Officer’s representative (COR). Any other work damaged as a result of this con-crete removal shall be replaced with new materials to the satisfaction of the Government representative/Contracting Officer’s representative (COR) at no additional cost to the Government representative/Contracting Officer’s representative (COR). The cost of coring will be deducted from the contract amount. Where core cylinders have been taken by the Testing Laboratory and the concrete proves to be satisfactory, core holes shall be filled in a manner satisfactory to the Government representative/Contracting Officer’s representative (COR) at no additional cost to the Government representative/Contracting Officer’s representative (COR).

B. The Contractor shall coordinate the date and location of tests with the Government representative/Contracting Officer’s representative (COR) before any concrete work is started.

1.06 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Reinforcing steel shall be transported to the site, stored, and covered in a manner which will ensure that no damage shall occur to it from moisture, dirt, grease, or any other cause that might impair bond to concrete or chip protective epoxy coating. A sufficient supply of approved reinforcing steel shall be stored on the site at all times to ensure that there will be no delay of the work. Identification of steel shall be maintained after bundles are broken.

2.01 MATERIALS

A. Portland Cement: ASTM C 150, Type II of U.S. manufacture. Only one brand of cement shall be used on the project.

B. Aggregates:

1. Fine aggregate: ASTM C 33, clean and graded from 1/4 inch to fines.

2. Coarse aggregate: ASTM C 33, clean and graded from 1/4 inch to maximum sizes hereinafter specified.

C. Air Entraining Agent

Conforming to ASTM C 260 for Air-Entraining Admixtures for Concrete.

D. Water Reducing Agent

Rock Harbor Dock Rehabilitation 03 20 10 - 4

Conforming to ASTM C 494 Type A for Chemical Admixtures for Concrete.

E. Water

Clean and potable, free of impurities detrimental to concrete.

F. Reinforcing Bars

New, deformed billet steel bars, conforming to ASTM A 615, Grade 60, with Epoxy-

Coating conforming to ASTM A775/A775M.

G. Accessories

Reinforcement accessories, consisting of spacers, chairs, ties, and similar items shall be provided as required for spacing, assembling, and supporting reinforcement in place. All accessories shall be dielectric coated steel or approved plastic accessories, conforming to the applicable requirements of the CRSI Standards hereinbefore specified.

H. Tie wire for reinforcement shall be 16 gauge or heavier dielectric coated steel or approved plastic accessories, conforming to the applicable requirements of ASTM A-82.

I. Form Ties and Spreaders

Standard metal form clamp assemble and plastic cone, of type acting as spreaders and leaving no metal within 1 inch of concrete face. Inner tie rod shall be left in concrete when forms are removed. No wire ties or wood spreaders will be permitted. Use 1/2" x 1" C.T.

plastic cones for sinkages.

J. Form Coatings

Non-grain raising and non-staining type that will not leave residual matter on surface of concrete or adversely affect proper bonding of subsequent application of other material applied to concrete surface, "Nox-Crete Form Coating" as manufactured by Nox-Crete Company, or approved equal. Coating containing mineral oils or the non-drying ingredients will not be permitted.

K. Grout (if required)

A high strength non-shrink grout with salt water resistance such as Five Star Special Grout or approved equal.

2.02 CONCRETE STRENGTHS AND PROPORTIONS

A. Cast-in-place concrete shall have the following minimum compressive strength at 28 days and shall be proportioned within the following limits:

Minimum Maximum Strength at Size of W/C Class 28 days Aggregate Ratio

Rock Harbor Dock Rehabilitation 03 20 10 - 5

Concrete for Pier 5000 psi 3/4" .40

B. The exact proportions for the mix, including amounts admixture (if any), and water, shall be determined by the concrete supplier.

C. The proportions of aggregate to cement for any concrete shall be such as to produce a mixture which will work readily into the corners and angles of the forms and around reinforcement, but without permitting the materials to segregate or excess free water to collect on the surface.

D. Air-Entrainment

The air content in all concrete shall be maintained at 6 to 8 percent.

PART 3 - EXECUTION

3.01 CAST-IN-PLACE CONCRETE

A. Falsework for Forms

1. The contractor shall build and maintain necessary falsework for the forms.

B. Construction of Forms

1. General

a. Wood forms shall be constructed of sound material, shall be of the correct shape and dimensions, mortar tight, of sufficient strength, and so braced and tied together that the movement of men, equipment, materials, or placing and vibrating the concrete will not throw them out of line or position.

2. Embedded Items

a. Provisions shall be made for pipes, sleeves, anchors, inserts, reglets, anchor slots, nailers, waterstops, and other features. No wood other than necessary nailing blocks shall be embedded in concrete. Complete cooperation shall be extended suppliers of embedded items in their installation. Secure information for embedded items from other trades as required. All embedded items shall be securely anchored in correct location and alignment prior to placing concrete.

3. Openings for Items Passing Through Concrete

a. Contractor shall establish exact locations, sizes, and other conditions required for openings and attachment of work specified under other sections. Contractor shall be held responsible for proper coordination of all work of this nature in order that therewill be no unnecessary cutting and patching of concrete. Any cutting and repairing to concrete required as a result of failure to provide for such openings shall be paid for by the Contractor at no additional expense to the Government

Rock Harbor Dock Rehabilitation 03 20 10 - 6 representative/Contracting Officer’s representative (COR).

C. Removing Forms and Falsework

1. Wood forms shall not be removed for at least 72 hours after concrete has been placed.

2. Forms shall not be removed until the concrete has attained sufficient strength to insure stability.

D. Reinforcing Steel

1. General: Reinforcing steel shall be placed in accordance with the drawings and approved shop drawings and the applicable requirements of the "Codes and Standards" here-in-before specified. Install reinforcement accurately and secure against movement, particularly under the weight of workmen and the placement of

2. Reinforcing Steel Supports: Bars shall be supported on approved plastic or dielectric-coated metal chairs or spacers, accurately placed and securely fastened to forms or steel reinforcement in place. Additional bars shall be supplied, whether specifically shown on the drawings or not, where necessary to securely fasten reinforcement in place. Support legs of accessories in forms without embedding in form surface. Spacing of chairs and accessories shall conform to CRSI's "Recommended Practice for Placing Bar Support". Hooping and stirrups shall be accurately spaced and wired to the reinforcement. No wood will be permitted inside forms. Lifting of welded wire fabric into proper position while concrete is being poured rather than supporting fabric on chairs will not be permitted.

3. Placing and Tying: All reinforcement shall be set in place, spaced, and rigidly and securely tied or wired with tie wire at all splices and at all crossing points and intersections in the positions shown, or as directed. Rebending of bars on the job to accommodate the job to accommodate existing conditions will not be permitted without the written approval of the Government representative/Contracting Officer’s representative (COR). Point ends of wire ties away from forms.

4. Spacing: Minimum center to center distance between parallel bars shall be in accordance with the details on the drawings, or, where not shown, the clear spacing shall be 2 times the bar diameter but in no case less than 1-1/2 inches or less than 1- 1/2 times the maximum size aggregate.

5. Splices shall be in accordance with the following:

a. Maximum 50% of steelspliced occurring within lap length.

b. #8 top bars shall be 1.3 times values given in 3.D.5.c.

c. Splice lengths

#4 bars and smaller 20 inches #5 bars 25 inches

Rock Harbor Dock Rehabilitation 03 20 10 - 7

#6 bars 30 inches #7 bars 50 inches

6. Protective Concrete covering: Except where shown otherwise on drawings, the minimum concrete coverage for steel reinforcement shall conform with the applicable revisions of the "Codes and Standards" here-in-before specified.

E. Mixing of Concrete

1. Due to the remote location of the project site, the Contractor shall submit a work plan outlining where and how the concrete will be mixed and how it will be placed.

2. All concrete shall be ready-mixed concrete shall be mixed and delivered in accordance with the "Specification for Ready-Mixed Concrete", ASTM C-94. The batch plant of the concrete producer shall be certified for compliance with the stan-dards established by the National Ready-Mixed Concrete Association.

3. The concrete delivery shall be arranged so that intervals between batches are kept to a minimum, and in any event not more than thirty (30) minutes.

4. Concrete shall be placed within 90 minutes after cement has been mixed with aggregate or 45 minutes after addition of water and admixtures.

5. No admixtures, except those mentioned in paragraph 2.1 shall be used. Calcium chloride will not be permitted.

6. Truck delivery slips of all concrete delivered to the job shall indicate the quantity and quality of concrete, additives, date and time of batching and delivery, and the location of placement. Delivery slips shall be forwarded to the Government representative/Contracting Officer’s representative (COR) at the end of each week.

F. Cold Weather Requirements:

1. Concrete shall not be mixed or placed when the temperature is below 40 degrees F., or when conditions indicate that the temperature will fall below 40 degrees F. within 72 hours unless precautions are taken to protect the concrete.

2. Concrete temperature shall be maintained, when deposited, at not less than 60 degrees F. Reinforcement, forms, and ground which concrete will contact must be completely free of frost.

3. Concrete and formwork must be kept at a temperature of not less than 50 degrees F.

for not less than 96 hours after placing.

4. Calcium chloride shall not be used.

G. Hot Weather Requirements:

1. The maximum temperature of the concrete, when deposited, shall be 85 degrees F.

If the weather causes the placing temperature to exceed 85 degrees F., the mix shall be cooled by appropriate methods if approved by the Government

Rock Harbor Dock Rehabilitation 03 20 10 - 8 representative/Contracting Officer’s representative (COR).

2. No concrete shall be deposited when the air temperature is greater than 90 degrees

F.

H. Conveying and Placing Concrete

1. Notification

a. Before placing concrete, forms shall be thoroughly inspected. All chips, dirt, etc., shall be removed, all temporary bracing and cleats taken out, all openings for pipes, etc., properly boxed, all forms properly secured in their correct position and made tight, all reinforcement, anchors, and embedded items secured in their proper places. Concrete which may be on the forms or reinforcement, and which is set and dry, shall be cleaned off, and the forms and steel washed off before proceeding. Remove all foreign matter from forms and excavations.

2. Water shall be removed from place of deposit before concrete is placed unless otherwise permitted by the Government representative/Contracting Officer’s representative (COR). Any flow of water into an excavation shall be diverted through proper side drains into a sump or shall be removed by other approved methods which will avoid washing away the freshly deposited concrete.

3. Anchors and Embedded Items

a. Anchors, bolts, sleeves, inserts, wood blocking, and any other items to be embedded in concrete shall be accurately secured in position before the concrete is placed. Aluminum shall not be embedded in concrete.

4. Handling and Depositing

a. Before any concrete is placed, the Contractor shall notify all whose work is in any way connected with or influenced by the concrete work and give them reasonable time to complete all portions of their work that must be completed before concrete is deposited.

b. Immediately before concrete is placed, the Contractor shall inspect all forms. Be sure that they are in proper position, sufficiently rigid, thoroughly clean, properly oiled and free from foreign materials, and that all reinforcement is in proper position.

c. Concreting, once started, shall be carried on as a continuous operation until the section of approved size and shape is completed.

d. Concrete shall be conveyed as rapidly as practicable from the mixer to the place of final deposit by methods which prevent the separation or loss of ingredients. It shall be deposited, as nearly as practicable, in its final position to avoid rehandling or flowing.

e. Concrete shall not be dropped freely where reinforcement will cause

Rock Harbor Dock Rehabilitation 03 20 10 - 9 segregation, nor shall it be dropped freely more than six(6) feet. Concrete shall be deposited to maintain a plastic surface approximately horizontal.

f. Concrete that has partially hardened shall not be deposited in the work.

5. Pumping

a. Concrete may be placed by pumping if first approved in writing by the

Government representative/Contracting Officer’s representative (COR) for the location proposed.

b. Equipment for pumping shall be of such size and design as to ensure a practically continuous flow of concrete at the delivery end without separation of materials.

c. The concrete mix shall be designed to the same requirements as herein before specified and may be richer in lubricating components in order to allow proper pumping.

d. Concrete shall not be pumped through aluminum pipes.

e. All pumping operations must have full-time inspection by a recognized testing laboratory approved by the Government representative/Contracting Officer’s representative (COR) and paid for by the Contractor. The cost of this full-time inspection shall be included in the contractor's bid proposal if the option of pumping is elected.

6. Vibrating and Compacting

a. All concrete shall be thoroughly consolidated and compacted by suitable means during the operation of placing, and shall be thoroughly worked around reinforcement, embedded items, and into the corners of the forms.

All concrete against forms shall be thoroughly spaded. Internal vibrators shall be used under experienced supervision and shall be kept out of contact with reinforcement and wood forms. Vibrators shall not be used in a manner that forces mortar between individual form members.

b. Vibrators shall be flexible electric type or approved compressed air type, adequately powered and capable of transmitting to the concrete not less than seven thousand (7,000) impulses per minute. Vibration shall be sufficiently intense to cause the concrete to flow or settle readily into place without separation of the ingredients. A sufficient number of vibrators shall be employed so that complete compaction is secured throughout the entire volume of each layer of concrete. At least one (1) vibrator shall be kept in readiness as a spare for emergency use. Vibrators shall be such that the concrete becomes uniformly plastic with their use.

c. Vibration shall be close to the forms but shall not be continued at one spot to the extent that large areas of grout are formed or the heavier aggregates are caused to settle. Care shall be taken to not disturb concrete which has its initial set.

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d. Where conditions make compacting difficult, or where the reinforcement is congested, batches of mortar containing the same proportions of cement to sand as used in the concrete shall first be deposited in the forms, to a depth of at least on inch.

e. The responsibility for providing fully filled out, smooth, clean, and properly aligned surfaces free from objectionable pockets shall rest entirely with the Contractor.

I. Construction Joints

Construction joints shall be as shown on the drawings. If for any reason a change is necessary, the Contractor shall prepare a placing plan for any construction joints and submit it to the Engineer for approval. Where a joint is to be made, the surface of the concrete shall be sandblasted or thoroughly picked, thoroughly cleaned, and all laitance removed. In addition to the foregoing, joints shall be thoroughly wetted, but not saturated, and slushed with a coat of grout immediately before the placing of new concrete. Approved keys shall be used at all joints, unless detailed otherwise. Forms shall be retightened before placing of concrete is continued. There shall be an interval of at least 48 hours between adjacent pours.

J. Expansion Joints

An expansion joint shall be placed between the main pier and the approach.

K. Patching

Immediately after stripping forms, patch minor defects, form-tie holes, honeycombed areas, etc., before concrete is thoroughly dry. Repair gravel pockets by cutting out to solid surface, form key, and thoroughly wet before placing patching mortar consisting of 1 part cement to 2 parts fine sand; compact into place and neatly finish. Honeycombed areas or gravel pockets which, in the Government representative/Contracting Officer’s representative (COR)'s opinion are too large and unsatisfactory for mortar patching as described above, shall be cut out to solid surface, keyed, and packed solids with matching concrete to produce firm bond and surface.

1. The Contractor shall do all the cutting as required by himself or other trades. All such work shall be of the minimum size required. No excessive cutting will be permitted, nor shall any structural members or reinforcement be cut.

2. The Contractor shall do all patching after work by other trades has been installed, where required, using Portland Cement Mortar 1:2 mix.

L. Protection and Curing

1. Protect concrete from injurious action of the elements and defacement of any nature during construction operations.

2. Keep concrete in a thoroughly moist condition from the time it is placed until it has cured, for at least three (3) days.

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3. Carefully protect exposed concrete corners from damage.

4. Allow no slabs to become dry at any time until curing operations are complete. In general, slabs shall be cured with non-staining curing paper, hosing or fog spray;

vertical surfaces shall be curing with Burlene or fog spray or an approved curing compound. Protect fresh concrete from drying winds, rain, damage, or spoiling.

Curing paper shall be lapped 4 inches minimum at joints and sealed with waterproof tape.

M. Concrete Finishes

1. Unexposed Surfaces

a. All unexposed surfaces shall have any form finish, at the Contractor's option.

2. Wearing Surface Finish

a. Float the surface by hand using a wooden or magnesium float. Finish with a flexible bristle broom. Permit surface to harden sufficiently to retain the scoring or ridges. Broom transverse to traffic or parallel to the slope of the slab. The final surface finish shall be approved by the Contracting Officer prior to any concrete placement.

3. Addition of Material

a. The addition of cement, sand, water, or mortar to slab surfaces while finishing concrete is strictly prohibited.

N. Defective Work

1. The following concrete work shall be considered defective and may be ordered by the Government representative/Contracting Officer’s representative (COR) to be removed and replaced at Contractor's expense:

a. Incorrectly formed.

b. Not plumb or level.

c. Not specified strength.

d. Containing rock pockets, voids, honeycomb, or cold joints.

e. Containing wood or foreign matter.

f. Otherwise not in accordance with the intentof the Drawings and

Specifications.

Rock Harbor Dock Rehabilitation 03 41 00 - 1 100% Design – August 6, 2020 PRECAST STRUCTURAL CONCRETE

SECTION 03 41 00 - PRECAST STRUCTURAL CONCRETE

1.01 DESCRIPTION

A. The Work of this Section consists of providing all labor, materials, equipment and supervision necessary to complete work specified. Scope of work includes, but is not limited to, furnishing and installing the following:

1. Precast concrete deck planks.

2. Bearing pads.

3. Mortar/Grout for keyways.

1.02 REFERENCE STANDARDS

A. Except as noted, work shall conform to the latest editions of the following specification and standards:

1. American Society of Testing and Materials (ASTM)

2. American concrete Institute (ACI)

3. American Association of State Highway and Transportation Officials (AASHTO)

4. Concrete Reinforcing Steel Institute (CRSI)

5. Precast/Prestressed Concrete Institute (PCI)

a. “Manual for Quality Control for Plants and Production of Precast

Prestressed Concrete Products” MNL-116, latest edition.

b. PCI Design Handbook MNL-120, latest edition.

c. Bridge Design Manual Latest Edition.

A. Submit for approval by Government representative/Contracting Officer’s representative (COR)/Engineer proposals for following items prior to acquisition and delivery:

1. Shop Drawings:

a. Concrete plank shop drawings including reinforcing steel, shall be of such detail and completeness that all fabrication and placement at the plant can be accomplished without the use of contract drawings for reference. Shop drawings shall include number of pieces, sized, and grade of reinforcing steel, accessories, and any other information required for fabrication and placement.

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b. Shop drawings shall be based on Contractor’s preconstruction survey and contract drawings.

c. Contractor shall check drawings for items which are required to be embedded in the deck planks and shall make necessary provisions as required so that reinforcing steel will not interfere with the placement of such embedded items.

2. Concrete Design Mix

3. Certificates of Compliance for Materials

a. Cement

b. Aggregate

c. Reinforcing

d. Air Entrainment

e. Plasticizers

4. Specifications for Neoprene Pads

5. Mortar and Grout Manufacturer and Catalog Data

6. Name and address of Testing Laboratory

1.04 PRODUCT DELIVERY, STORAGE AND HANDLING

A. The precast concrete planks shall be transported, stored and handled in a position consistent with the shape and design in order to avoid stresses which would cause cracking or damage.

1. Lift and support items only at the points shown on the shop drawings.

2. Do not place items directly on ground.

PART 2 -PRODUCTS

2.01 GENERAL

A. Precast concrete planks shall be manufactured with materials as specified in PCI-MNL- 116, and as noted herein.

1. Cement shall be ASTM C150, Type II.

2. All concrete shall be proportioned within the following limits:

Minimum Maximum Maximum psi at Size of Maximum Water/Cement Air 28 Days Aggregate Slump Ratio Entrainment

5000 3/4 4” .40 6 to 8%

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3. Coarse aggregate shall be ASTM C33 size No. 67 (3/4 inch to No. 4).

4. Reinforcing steel shall conform to ASTM A615 Grade 60 with epoxy coating conforming to ASTM A775/A775M.

5. Air entrainment: conform to ASTM C260 for air entraining admixtures for

6. Plasticizers (water reducers); conform to ASTM 494 Type A for chemical admixtures for concrete.

7. Neoprene bearing pads shall conform to the requirements of AASHTO Section 25.

2.02 MANUFACTURE

A. The concrete deck planks shall be fabricated in accordance with the plans and specifications. Concrete strength and plank dimensions shall be as indicated on the drawings. Alternative plank sizes may be submitted for approval by the Engineer.

B. Manufacturing of the deck planks shall be by a firm which has experience in providing precast concrete products. This manufacturer must show evidence of successful completion of similar and comparable work.

C. Manufacturing and testing procedures shall comply with PCI-MNL-116.

2.03 TESTING

A. Design of Mix: The mixes for all precast concrete shall be designed by the Contractor to produce the specified requirements. The Contractor shall submit to the Government representative/Contracting Officer’s representative (COR)/Engineer, for approval, complete information on the proportions of the various materials along with anticipated slump limits prior to casting concrete at the plant.

B. Quality Control

1. Test Specimens: The Contractor will be required to make, cure and have tested a minimum of one set of four test specimens from the concrete of each day’s pour and for each fifty cubic yards of concrete cast in accordance with ASTM Designations C172, C31 and C39. One cylinder shall be broken after seven days and three cylinders after twenty-eight days.

2. Slump: A slump test shall be made for each plank pour of concrete in accordance with ASTM Designation C143.

3. Air Content: The Contractor shall make an air content test from each plank pour of concrete by pressure method in accordance with ASTM Designation C231.

Air contents above or below the limits specified will be grounds for rejection of the concrete.

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4. Testing: All personnel and laboratories testing concrete shall be licensed by the State of Michigan.

3.01 INSPECTION

A. Prior to placing the deck planks the Contractor shall inspect the plank to pile cap bearing area of both the pile cap and the deck planks. The bearing areas shall be sound, smooth and level concrete surfaces. Any imperfections or projections shall be repaired or removed prior to placing of the deck planks by grinding or grouting the planks or pile cap.

3.02 ERECTION

A. Placing Deck Planks

a. Before placing the deck planks on the pile caps, a neoprene bearing pad shall be placed on the pile caps as shown on the plans.

B. Mortaring Keyways

1. Before the mortar is placed, the keyways shall be thoroughly saturated by sprinkling with water. The consistency of the mix shall be dry enough to withstand hard ramming without flushing of fines or water to the surface. The mix shall be placed in the key-ways in thin layers, with each layer fully consolidated by ramming. The keyways shall then be packed at least flush to the top of the beams with grout and feathered out where necessary to avoid sharp projections.

C. Curing of Keyways

1. The keyways and the area of the beams adjacent to the keyways shall be cured with burlap, continuously well saturated, for a period of 72 hours. Keyways shall not be packed in freezing weather unless heat and thermal protection are provided, and no vehicular traffic or other significant loading will be allowed on the deck during the curing period.

D. Final Work

1. Further work on the pier deck shall not be started until the Engineer has approved the assembly.

Rock Harbor Dock Rehabilitation 05 50 00 - 1 100% Design – August 6, 2020 METAL FABRICATIONS (Steel)

SECTION 05 50 00 - METAL FABRICATIONS (Steel)

PART 1 - GENERAL

1.01 DESCRIPTION

A. Provide all labor, materials, equipment and supervision necessary to complete work

A. Scope of work includes, but is not necessarily limited to:

1. Manufacturing or shop fabricating all fender frames, bracing, mooring hardware connections as indicated on the drawings.

1.03 QUALITY ASSURANCE

A. Except as noted, work shall conform to the following codes and standards:

1. American Society for Testing and Materials (ASTM), latest edition.

2. American Institute of Steel Construction (AISC) Specification for the Design, Fabrication and Erection of Structural Steel for Buildings, latest editions.

3. American Welding Society (AWS).

A. Shop drawings:

1. Submit for approval prior to fabrication all information necessary for the fabrication of the component parts. Indicate size and weight of members, type and location of shop and field connections, the type, size and extent of all welds, and welding sequences. Use American Welding Society welding symbols. Approval of shop drawings will be for size and arrangement of principal and auxiliary members and strength of connections. Any errors in dimensions shown on shop drawing shall be the responsibility of the Contractor.

B. A “Hot Work Plan” developed to satisfy the requirements of OSHA and NFPA.

C. The Contractor shall use only certified welders and the shielded arc process for all welding performed in connection with the work of this Section. Each welder shall be certified for the particular work, prior to commencing the work, which must be accomplished.

D. Completed welds will be subject to inspection and approval of an independent testing agency. Faulty welds shall be cut out and replaced at no cost to the Government

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E. Upon completion of this portion of the work, and as a condition of its acceptance, the Contractor shall deliver to the Engineer a letter signed by an official of the miscellaneous metal…