Sachuest_Pt_PV_rev_3_16_15.pdf

Project Statement of Work

SACHUEST POINT NWR

Middletown, Rhode Island

SOLAR PV SYSTEM

DATE: August 14, 2014

United States Fish and Wildlife Service Division of Engineering 300 Westgate Center Drive Hadley, MA 01035-9589 Telephone (413) 253-8311

SACHUEST POINT NWR SOLAR PV SYSTEM

MIDDLETOWN COUNTY, RHODE ISLAND 2014

INDEX

No. of Pages

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01010 SUMMARY OF WORK 6

01200 PROJECT MEETINGS 1

01300 SUBMITTALS 4

01500 TEMPORARY FACILITIES AND CONTROL 3

01700 PROJECT CLOSEOUT 2

DIVISION 2

SECTION 02110 SITE CLEARING 1

02200 TRENCHING AND BACKFILLING FOR UTILITIES 4

DIVISION 3 CONCRETE

SECTION 03300 CAST-IN-PLACE CONCRETE 8

DIVISION 4 - 15

NOT USED

DIVISION 16 - ELECTRICAL

SECTION 16050 BASIC ELECTRICAL REQUIREMENTS,

MATERIALS AND METHODS 7

16060 GROUNDING AND BONDING 5

16120 CONDUCTORS AND CABLES 4

16130 RACEWAYS AND BOXES 6

16410 ENCLOSED SWITCHES 3

16442 PANELBOARDS 5

16630 GRID TIED PHOTOVOLTAIC SYSTEM 14

DRAWING TABLE

OF CONTENTS

DRAWING

T-1 Title, Vicinity Map, & Index of Drawings E-1 Site Plan Partial Plan and Details E-2 One Line Diagram

SACHUEST POINT BAY NWR SOLAR PV SYSTEM

SUMMARY OF WORK 01010-1

SECTION 01010-SUMMARY OF WORK

PART 1 GENERAL

1.01 WORK INCLUDED

A. The Contractor shall furnish labor, materials and equipment required for the construction of photovoltaic system complete and ready for use as shown in the contract drawings and specifications herein. The Contractor shall provide complete and operational systems whether specified or implied, labor, materials and equipment required to perform the work indicated and specified by the Contract Documents. The work under this contract includes the construction of a ground mounted photovoltaic array, new equipment and revisions to the electrical service at the Sachuest National Wildlife Refuge Visitor Center.

B. Base Bid: Design and install a 8 KW (minimum) DC rated grid tied ground mounted solar photovoltaic system.

C. Additive Bid Item 1: Expand the grid tied ground mounted solar photovoltaic system by 8 KW for a total of 16 KW DC (minimum).

1.02 LOCATION AND INSPECTION OF SITE

A. The site of the work is at the Sachuest Point National Wildlife Refuge Visitor

Center, located in Middletown Rhode Island. From U.S. Route 1, take Route 138 exit East across Newport Bridge to Miantomi Avenue. Travel East 0.6 mile to Green End Avenue. Without turning, follow that road 1.2 miles East to Paradise Avenue. Turn right onto Paradise Avenue (sign on right. Continue straight until the road forks and then bear left. At the stop sign take a left on Sachuest Point Road. Sachuest Point NWR is at the end of the road.

B. Prospective bidders are encouraged to visit the work area in order to examine the existing site conditions by making arrangements with the Deputy Project

Leader, Rhode Island National Wildlife Complex, telephone number (401) 364- 9124 or Maintenance Chief (401) 440-5593. A formal site visit will be set up prior to proposal closing.

1.03 SURVEY DATA

A. The Contractor shall be responsible for all construction surveys, verifying existing utilities and staking required for performance of all work to the lines, grades, and slopes shown on the drawings.

SUMMARY OF WORK 01010-2

1.04 APPLICABLE CODES, STANDARDS AND SPECIFICATIONS

A. All work shall comply with codes and standards applicable to each type of work as listed in individual Sections of these specifications.

1. The structure and layout shall conform to the International Building Code latest version, and to the Americans with Disabilities Act Accessibility Guidelines.

2. Conform to all regulations and statutes of the State of Rhode Island, and to all Federal regulations which apply.

3. Materials, applications, and tests specified by reference to published standards of a society, association, code, or other published standards are included in the specifications as if written in their entirety.

4. Where referenced documents are not specified by date, the applicable version of the document shall be the version current as of the date established for receipt of bids.

5. Where a conflict occurs between referenced documents and the Project

Specifications, the Project Specifications govern.

6. Where a conflict occurs between referenced documents, the document containing the most stringent requirements governs.

1.05 PERMITS AND FEES

A. The Contractor shall be responsible for obtaining all necessary local, state, and federal permits and licenses, and payment of related fees, per the Contract Clauses.

1.06 ABBREVIATIONS

A. Abbreviations used throughout the specifications and the organization or document represented:

ANSI American National Standards Institute

1430 Broadway New York, NY 10018

ASTM American Society for Testing and Materials 1916 Race Street

SUMMARY OF WORK 01010-3

Philadelphia, PA 19103

ASA American Standards Association (now USAS)

IBC International Building Code IECC International Energy Conservation Code IMC International Mechanical Code IPC International Plumbing Code

IRC International Residential Code 5203 Leesburg Pike, Suite 708 Falls Church, VA 22041-3401

NEC National Electric Code Batterymarch Park Quincy, MA 02269

NEMA National Electrical Manufacturers' Association 2101 L Street, N.W.

Washington, DC 20037

OSHA Occupational Safety and Health Administration (U.S. Department of Labor) Government Printing Office Washington, DC 20402

UL Underwriters Laboratories 333 Pfingston Road Northbrook, IL 60062

B. Additional abbreviations will be defined as they appear in the specification.

1.07 MANUFACTURER'S SPECIFICATIONS

A. Where manufacturer's products and processes are included in the specifications by reference, they shall be included in these specifications as if written in their entirety.

B. Products and processes included in the specifications shall conform to the manufacturer's latest published specifications.

C. At the request of the Contracting Officer, the Contractor shall provide a sworn affidavit from the manufacturer certifying that material, products, and processes delivered and used on the project meet the specified requirements. This affidavit

SUMMARY OF WORK 01010-4

shall not relieve the Contractor from his responsibility for full compliance with the requirements of the specifications.

1.08 SUBSTITUTIONS

A. The contractor shall provide all equipment, materials, and services as specified or noted on the drawings, unless an approved substitution is obtained.

B. All proposals for substitutions must be submitted to the Contracting Officer and

Contracting Officers Representative in writing for approval. Submittals shall include all data necessary for thorough comparison with specified item and reason for the proposed substitution. The Contracting Officers Representative determination as to whether substitution will be permitted and as to what substitute materials may be used shall be final and conclusive.

C. For proposed substitutions, the Contractor shall:

1. Provide all additional drawings and data for approval as considered necessary by the Contracting Officers Representative.

2. Pay for all labor and materials required as a result of the substitutions.

1.09 MEANS AND METHODS

A. Means and methods of construction shall be such as the Contractor may choose;

subject, however, to the Contracting Officers Representative right to reject means and methods proposed which:

1. Constitute a hazard to the work, persons, or property.

2. Will not produce finished work in accordance with terms of the contract.

3. Are contrary to specified means or methods included in the contract.

B. The right to reject means and methods of the Contractor or subcontractor shall not be construed or interpreted as acceptance of control of means and methods by the Contracting Officers Representative.

C. The Contracting Officers Representative approval of means and methods or failure to exercise right to reject means and methods shall not relieve the Contractor of the obligation to complete the work required by the contract.

D. Total responsibility for control of all means and methods lies with the Contractor

SUMMARY OF WORK 01010-5

for all work.

1.10 COORDINATION

A. In the event that other contracts are in progress concurrently with this contract, the Contractor shall coordinate his work so as not to disrupt progress of other work, and shall cooperate to facilitate orderly progress of all work.

1.11 ENVIRONMENTAL PROTECTION

A. Pollution Control

1. The Contractor shall abate and control all environmental pollution arising from construction activities by complying with all applicable Federal, State, and local laws and regulations concerning environmental pollution control and abatement, as well as the specified requirements in this contract.

a. Compliance with this requirement by subcontractors will be the responsibility of the Contractor.

B. Fossils and Cultural Materials

1. Should the Contractor discover any fossils or cultural materials during construction operations, such objects shall become the property of the Government. The Contractor shall cease construction operations in the area of the "find," and immediately notify the Contracting Officer of such discovery. Construction operations may proceed in other areas not affected by this clause. Care shall be exercised by the Contractor so as not to damage or collect fossils or cultural materials uncovered during excavation operations.

2. If the Contractor uses soil materials obtained from a non-government source to perform work that is required under this project, and a new borrow site is opened, or an existing borrow area is expanded in order to obtain such materials, the Contractor shall be required to comply with Section 106 of the National Historic Preservation Act.

3. Failure to comply with this requirement may be considered a violation of the Archeological Resources Protection Act of 1979 as amended.

Destruction of historic and prehistoric sites and/or unauthorized collection of cultural materials can result in criminal and/or civil penalties. Penalties can include fines, prison sentences, and/or confiscation of equipment.

SUMMARY OF WORK 01010-6

C. Prevention of Water Pollution

1. During construction the Contractor shall comply with all applicable

Federal, State, and local laws and regulations concerning the control and abatement of water pollution.

2. The Contractor's construction activities shall be performed by methods that will prevent entrance or accidental spillage of solid matter, contaminants, debris, and other objectionable pollutants and wastes into streams, flowing or dry water-courses, lakes, ponds, and underground water sources. All debris and construction waste shall be taken off-site to a jurisdictionally accepted waste management facility.

D. Abatement of Air Pollution

1. The Contractor shall comply with applicable Federal, State, and local laws and regulations concerning the prevention and control of air pollution.

2. Construction activities shall be performed in such a manner that air pollution is held to a minimum.

3. Burning of materials, trees and brush, combustible construction materials, and rubbish will not be permitted. All debris and construction wasted shall be taken off-site to a jurisdictionally accepted waste management facility.

E. Environmental Litigation

1. Time lost due to work stoppage because of failure of the Contractor to comply with these requirements may not be the subject of a claim for extension of time or for costs or damages.

END OF SECTION 01010

PROJECT MEETINGS 01200-1

SECTION 01200 – PROJECT MEETINGS

1.01 PRECONSTRUCTION CONFERENCE

A. A Preconstruction Conference may be held after the award of the bid and prior to the notice to proceed at the discretion of the Contracting Officer. The Contractor may be required to travel to the work site for this meeting.

1.02 PROGRESS MEETING

A. The Contractor or his project superintendent shall be available to meet with the

Contracting Officer's Representative (COR) at the jobsite periodically during construction to discuss work progress.

B. At the above meetings, the Contractor or superintendent shall give verbal reports of progress on the project, discuss the work schedule, and present all conflicts, discrepancies, or other difficulties.

END OF SECTION 01200

SUBMITTALS 01300-1

SECTION 01300-SUBMITTALS

PART 1 GENERAL

1.01 SUBMITTALS - GENERAL

A. Submit action submittals and informational submittals on the technical and administrative aspects of the project. The types of information and documentation required to be submitted during the course of the project may include but not be limited to:

Construction Progress Schedule / Sequence of Operations Schedule of Values Guarantees, Warranties and Certificates Test Reports Technical submittals Project Record Drawings Operation and Maintenance Manuals

B. All submittals shall be sent to the Contracting Officer and Contracting Officers Representative.

1.02 CONSTRUCTION PROGRESS SCHEDULE / SEQUENCE OF OPERATIONS

A. Submit construction schedule for review within 15 days after Notice to Proceed, to illustrate the sequence and time allotted for each construction activity in order to achieve completion of the work within the time limit specified in the contract.

The schedule shall include the following:

1. Breakdown of work activities in categories as necessary, to allow monitoring of progress of work during construction.

2. Sequence of construction by activity with start dates, duration, and finish dates.

1.03 SCHEDULE OF VALUES

A. Prior to the first progress payment application submit a Schedule of Values to indicate the dollar value of each category of work or construction trade. At a minimum, the Schedule of Values shall have a line item for each specification section in Divisions 1 through 16.

1.04 GUARANTEES, WARRANTIES, AND CERTIFICATES

SUBMITTALS 01300-2

A. Submit guarantees and warranties for building components, systems, or equipment specified to have a warranty period which exceeds the basic one year construction warranty. Complete all blank spaces on warranty forms requiring information prior to submittal.

B. Guarantees shall extend the full period of the required guarantee period after:

1. Replacement of work found defective during guarantee period.

2. Repair of inoperative items or adjustments to proper working condition of items not operating properly at time of inspection at final completion.

1.05 TECHNICAL SUBMITTALS

A. Prior to the use or installation of any material or item specified as requiring submittal, the Contractor shall submit the types of data required by each section of the technical specifications (Divisions 2 through 16). This data may include manufacturer’s product data, shop drawings, schedules, performance data, samples, color selections, test reports, certifications, and instructions.

B. The Contractor shall not perform work for which submittals are required prior to receipt of the submittals or samples, approved by the Fish and Wildlife Service.

C. The Contractor shall allow time in his schedule for submittal review by the

Government of a minimum 14 days from time of receipt by the Contracting Offices Representative to time of return posting.

1.06 PROJECT RECORD (AS-BUILT) DRAWINGS

A. Definition.

1. “Project Record Drawings”, also referred to as “As-Built Drawings” or

“Redlines”, means drawings submitted by the Contractor to show the construction as actually completed under the contract.

B. As-Built Drawing Maintenance

1. Maintain at jobsite one complete set of full-size prints of contract drawings, including amendments and modifications, marked and dimensioned to show variations between the construction shown or specified in the contract documents and that actually provided.

SUBMITTALS 01300-3

2. Mark as-built drawings to show all deviations from the original contract drawings. Include dimensions, locations, elevations, material sizes and specifications, existing conditions that affected the construction and were not shown, and other information required to show the actual as-built condition. Show buried or concealed construction, utilities, items, and features. Show existing utility lines, items, and features revealed during the course of construction. Accurately locate and record existing topographic features which differ from those shown on the contract drawings.

3. Use standard drafting practice to represent such changes and include such supplementary notes, legends, and details as necessary to clearly portray the as-built construction. Mark the as-built drawings in the following colors:

Red - Additions to the original drawings.

Green - Deletions to the original drawings.

Blue - Any notations necessary to describe or interpret as-built conditions.

4. Maintain as-built drawings as work progresses. Mark drawings as items and features of work are completed. Do not use record drawings for other purposes. Make available for review by Government at all times.

5. Upon completion of work, certify marked-up print set as correct, sign by

Contractor, and deliver to the Contracting Officer.

1.07 OPERATION MANUALS

a. Content: In addition to requirements in this Section, include operation data required in individual Specification Sections and the following information:

1) System, subsystem, and equipment descriptions. Use designations for systems and equipment indicated on Contract Documents.

2) Performance and design criteria if Contractor is delegated design responsibility.

3) Operating standards.

4) Operating procedures.

5) Operating logs.

6) Wiring diagrams.

7) Control diagrams.

8) Piped system diagrams.

9) Precautions against improper use.

10) License requirements including inspection and renewal dates.

SUBMITTALS 01300-4

b. Descriptions: Include the following:

1) Product name and model number. Use designations for products indicated on Contract Documents.

2) Manufacturer's name.

3) Equipment identification with serial number of each component.

4) Equipment function.

5) Operating characteristics.

6) Limiting conditions.

7) Performance curves.

8) Engineering data and tests.

9) Complete nomenclature and number of replacement parts.

c. Operating Procedures: Include the following, as applicable:

1) Startup procedures.

2) Equipment or system break-in procedures.

3) Routine and normal operating instructions.

4) Regulation and control procedures.

5) Instructions on stopping.

6) Normal shutdown instructions.

7) Seasonal and weekend operating instructions.

8) Required sequences for electric or electronic systems.

9) Special operating instructions and procedures.

d. Systems and Equipment Controls: Describe the sequence of operation, and diagram controls as installed.

e. Piped Systems: Diagram piping as installed, and identify color-coding where required for identification.

f. Provide 3 copies of Operation and Maintenance Manual

PART 2 PRODUCTS

(Not Applicable)

PART 3 EXECUTION

3.01 TECHNICAL SUBMITTAL PROCESS

A. All submittals shall be sent to the Contracting Officer and Contracting Officers Representative accompanied by a Government-furnished submittal form for each

SUBMITTALS 01300-5

specifications section or group of equipment/materials, which shall be used as the document for approving or disapproving the material. A minimum of four (4) copies of data shall be submitted to allow the Government to retain two copies.

B. Make all submittals of data, items, materials and samples within the time frame necessary to allow the specified review time, and manufacturer’s lead time, fabrication, shipping, etc. so products will be delivered in time for scheduled incorporation into the work Contractor shall check submittals for completeness and conformity to the contract documents, and mark them to this effect before submitting to the Contracting Officer and Contracting Officers Represenatative.

C. Submit in sufficient detail to establish conformity with contract requirements and specifications. Shop drawings shall be in sufficient detail compatible with the complexity of the project to adequately illustrate the relationship of major components. Submittals on component parts forming a system, or that are inter-related, shall be submitted together as a single submittal.

D. Where more than one product, option, or feature is described in the submittal, clearly mark the specific item proposed for use. Selection of unmarked items or options will be made by the Government.

E. Reviewed submittals shall be returned to the Contractor marked with one of the following actions:

Approved as submitted.

Approved, except as noted. Resubmission not required.

Approved, except as noted. Resubmission required.

No action taken. See comments on reverse. Resubmission required.

Disapproved.

Other: (comments as noted)

F. The Contracting Officer’s Representative indication of “Approved” on submittals and samples shall not relieve the Contractor from responsibility for deviations from the requirements of the Contract Documents, unless the Government has been notified in writing and has given its approval to such deviation, nor shall approval by the Government relieve the Contractor from responsibility for errors and omissions in submittals.

END OF SECTION 01300

TEMPORARY FACILITIES AND CONTROLS 01500-1

SECTION 01500- TEMPORARY FACILITIES AND CONTROLS

PART 1 GENERAL

1.01 CONTRACTOR USE OF PREMISES

A. The Contractor shall be permitted to utilize Government resources and utilities as described in succeeding paragraphs during execution of the work. Such use shall be conditional upon availability and responsible use, and shall not interfere with Government operations. The Contractor shall be responsible for repair of damages resulting from such use, and shall clean the areas and facilities used when the work is complete.

B. All operations of the Contractor (including storage of materials) upon

Government premises shall be confined to areas authorized or approved by the Contracting Officer.

C. Other contractors and employees or agents of the Government may for all necessary purposes enter upon the work and premises used by the Contractor, and the Contractor shall conduct his work so as not to impede unnecessarily any work being done by others on or adjacent to the site.

D. Construction waste shall be confined to one specific area of the site, designated by the Contracting Officer, until removed and legally disposed of by the Contractor.

Washing of concrete mix trucks shall be confined to a single location, and resulting waste shall be removed prior to project completion.

1.02 WEATHER PROTECTION

A. General

1. Provide necessary protection against weather to keep all materials, equipment, and work in progress free from damage.

2. Wet work performed at temperatures below 40 degrees F, or when it is forecasted to be below 40 degrees F within the ensuing 48 hours, shall be properly protected and sufficiently heated, as approved by the Contracting Officer.

TEMPORARY FACILITIES AND CONTROLS 01500-2

1.03 TEMPORARY UTILITIES

A. Electrical

1. The Contractor may utilize the Government power supply for use directly related to the performance of the work, with charge for electricity. The Contractor shall furnish all disconnects, breakers, adapters, meters/bases and extension cords as required. All materials and equipment used for temporary power shall be OSHA approved. The Contractor shall be responsible for insuring that his tools and equipment are turned off or disconnected at the end of each day.

B. Telephone

1. Telephone service will not be available at the site. The contractor shall make arrangements for telephone service as may be required.

C. Water

1. The Contractor may utilize the existing water service for the execution of contract requirements.

D. Toilets

1. Sanitary facilities will not be available at the project site. The Contractor shall provide portable toilets for use of construction personnel. Portable toilets shall be removed from the site at time of final completion.

1.04 SAFETY

A. Contractor Responsibility.

1. The Contractor shall assume full responsibility and liability for compliance with all applicable Federal, State, and local regulations pertaining to the protection of workers, visitors to the site, and persons occupying areas adjacent to the site, including the provisions of 29CFR1910 and 29CFR1926 of the Code of Federal Regulations. The Contractor shall hold harmless the Government for failure to comply with any applicable safety or health regulation on the part of himself, his employees, or his subcontractors.

TEMPORARY FACILITIES AND CONTROLS 01500-3

2. The Contractor shall be responsible for providing medical examinations and maintaining medical records of personnel as required by the regulations.

B. Provide and maintain a basic first aid kit for use of workers.

1. Provide first aid supplies commensurate with size of project with items necessary for first aid treatment of all injuries.

2. Advise all workers of the location of first aid supplies.

C. Barricades

1. Provide and maintain temporary barricades as required for safety.

D. Provide at least one nonfreezing-type fire extinguisher at the worksite. Place in location readily accessible to workers.

END OF SECTION 01500

PROJECT CLOSEOUT 01700-1

SECTION 01700-PROJECT CLOSEOUT

1.01 FINAL INSPECTION

A. The Contractor shall request a final inspection in writing at least ten (10) days prior to the anticipated date of completion.

B. Prerequisites for final inspection:

1. Removal of temporary facilities and utility connections.

2. Startup and testing of mechanical and electrical systems.

3. Delivery of keys, tools, spare parts, and extra materials to location designated by Contracting Officer/Contracting Officers Representative.

4. Final submittals.

5. Final cleaning.

6. Contractor certification that all items are properly installed and work is complete and in compliance with all contract terms and conditions.

C. Upon receipt of request, the Contracting Officer/Contracting Officers

Representative shall either proceed with the inspection or shall notify the Contractor that the work is not substantially complete or ready for inspection. At the conclusion of the inspection, the Contracting Officer shall either certify the project as complete or shall prepare a list of items requiring completion or correction (punch list) before the project will be accepted.

D. If the work is judged to be incomplete and reinspection is necessary, the

Contractor shall request reinspection when all remaining work and the punch list items identified by the Contracting Officer/Contracting Officers Representative have been completed or corrected.

E. The Contractor or his project supervisor shall be at the jobsite during the final inspection.

1.02 FINAL SUBMITTALS

A. Submit all items to the Contracting Officer and Contracting Officers

Representative in accordance with Section 01300.

1. Operation and maintenance manuals.

2. Written guarantees, warranties, and certificates.

PROJECT CLOSEOUT 01700-2

3. Project record drawings.

(Not Applicable)

PART 3 EXECUTION

3.01 FINAL CLEANUP

A. Remove tools, equipment, and temporary facilities when no longer required for execution of the work.

B. Clean the work area, and remove trash and construction waste from Government premises. All debris and construction wasted shall be taken off-site to a jurisdictionally accepted waste management facility.

END OF SECTION 01700

END OF DIVISION 1

SITE CLEARING 02110-1

SECTION 02110-SITE CLEARING

1.01 SECTION INCLUDES

A. Remove surface debris.

B. Clear site of plant life. Stockpile top soil on site for future use.

1.02 REGULATORY REQUIREMENTS

A. Conform to Section 01010 for disposal of debris.

1.03 SUBMITTALS

A. Site layout. Prior to any site work Contractor shall submit a plan to survey, stake and flag lines of grading that represent completed site grading.

None

3.01 PROTECTION

A. Protect utilities from damage.

B. Site utilities may exist in the vicinity and or building location. If utilities are discovered during site clearing and/or excavation notify Contracting Officer immediately for further instructions to continue work.

C. Trees and shrubs to be removed shall be designated and marked by the Contracting

Officer/Contracting Officers Representative. Any damaged trees and shrubs that have been designated to remain shall be replaced at the expense of the Contractor.

3.02 REMOVAL

A. All debris and construction waste shall be taken off-site to a jurisdictionally accepted waste management facility.

END OF SECTION 02110

MIDDLETOWN COUNT, RHODE ISLAND 2014

TRENCHING AND BACKFILLING FOR UTILITIES 02220-1

SECTION 02220-TRENCING AND BACKFILLING FOR UTILITIES

1.01 WORK INCLUDED

A. Work for this Section includes excavation, trenching, backfilling and compaction for the installation of site utilities to the depths and dimensions shown on the drawings or designated in the specifications.

B. Excavation in this Section is unclassified. Unclassified excavation may include common and rock excavation.

1.02 JOB CONDITIONS

A. Bidders are expected to examine the site to determine the character of material to be encountered.

B. All stockpiles shall be located according to the directions of the Contracting Officer.

1.03 SAFETY AND PROTECTION

A. Trenches and excavations shall be sloped, benched, sheeted, shored, and/or braced where required in a manner consistent with established safe practices and in accordance with all applicable safety regulations.

B. Barricade open excavations occurring as part of this work.

C. Protect excavations from freezing. If frost action occurs, compact ground after thawing as specified herein.

D. All earthwork shall be conducted in sites which have been dewatered.

1.04 SUBMITTAL

A. The Contractor shall submit “As-Built” drawings identifying the actual location and depth of all installed pipelines. Dimensions shall be made from a fixed reference point.

B. Provide gradation analysis for special bedding material and crushed rock backfill.

1.05 SURVEY DATA

A. Contractor shall be responsible for all construction surveys and staking required for

TRENCHING AND BACKFILLING FOR UTILITIES 02220-2

performance of all work.

B. The information provided is the best available in reference to the location of existing underground utilities, structures, and facilities. The Contractor shall be responsible for all field verification and shall repair any damaged utilities resulting from construction activities.

2.01 MATERIALS

A. Initial Backfill: Select earth material taken from the excavation. Material shall not contain any rock larger than ½ inch in greatest dimension, any trash, lumber, large clods, or other harmful debris.

B. Subsequent Backfill: Excavated material free from rocks larger than 6 inches in the largest dimension, frozen earth, clods, debris, or material with and exceptionally high void content.

C. Special Bedding: Rounded or angular stones or gravel or other angular material with a general size range of from 1/4 inch to ½ inch. One hundred percent of the material shall pass a ½ -inch sieve. No more than 5 percent shall pass a No. 8 sieve. Where only rounded stone is available, the size range shall be 1/4 inch to ¾ inch.

D. Crushed Rock Backfill: Shall consist of aggregate mixtures that conform to the requirements for aggregate surfacing as set forth in the Montana Department of Transportation Standard Specifications for Road and Bridge Construction. The material shall be selected to include a sufficient quantity of natural cementitious or binding material such that the surfacing will bond readily under the action of compaction.

3.01 PREPARATION

A. Identify required lines, levels, contours, and datum. Minimum depth of earth cover for the PVC pipe is frost depth.

B. Identify known below grade utilities. Stake and flag locations.

C. Identify and flag above grade utilities.

D. Maintain and protect existing utilities remaining which pass through the work area.

TRENCHING AND BACKFILLING FOR UTILITIES 02220-3

E. Upon discovery of unknown utility or concealed conditions, discontinue affected work and notify the Contracting Officer/Contracting Officers Representative.

3.02 EXCAVATION

A. Maintain excavation free of water at all times.

B. Trenches shall be sufficiently wide to permit installation and inspection of pipelines.

Slope or shore trench walls as required for safety.

C. The trench bottom shall be properly excavated to ensure adequate bearing of the pipe barrel along its entire length.

D. The trench bottom shall be free of sharp rocks and debris that may damage the pipe.

E. Excavation in rock and water-bearing earth shall be carried to a depth of not less than four (4) inches below the normal trench bottom elevation. Backfill this 4 inches with special bedding and compact to a density at least equal to that of surrounding earth.

F. Except where special bedding is required, care shall be taken not to excavate below the trench bottom elevation as shown in the typical trench detail on the drawings.

G. If unauthorized over excavation occurs, the excess depth shall be backfilled with moist earth or sand and tamped to a density at least equal to that of the surrounding earth at the Contractor's expense.

H. Unusable excavated material shall be removed from the site.

3.03 BACKFILLING

A. Prior to placing pipe in the trench and backfilling, the trench bottom at pipe joints shall be trimmed to insure adequate bearing of the pipe barrel along its entire length.

B. As soon as possible after individual pipe is jointed and placed in the trench, sufficient initial backfill material shall be placed along each side of the pipe to offset conditions that might tend to move the pipe off line and grade.

C. Backfill shall not be completed until pressure and/or leakage tests have been performed and the pipeline is approved by the Contracting Officer. Sufficient backfill shall be placed to prevent pipe movement during pressure tests. All joints, etc., shall remain uncovered for inspection purposes during testing.

TRENCHING AND BACKFILLING FOR UTILITIES 02220-4

D. The initial backfill around the pipe shall be placed and tamped. It shall be placed in two 6-inch compacted layers (total of 12 inches) and each layer compacted to the density at least equal to that of the surrounding earth.

E. Subsequent backfill shall be deposited and carefully compacted in layers not to exceed twelve (12) inches in thickness. Each layer shall be compacted to a density at least equal to that of the surrounding earth.

F. In areas where trench excavation is in graveled roadway surface, backfill shall be as specified herein, except that it shall stop a minimum of 12 inches below the roadway surface. Crushed rock backfill shall then be placed in two equal depth layers and compacted.

G. In areas not in traveled roadways, excess material from the trench shall be mounded over the trench not to exceed four (4) to six (6) inches above the surrounding ground.

H. Excessive settlement or other evidence of improper backfill shall be corrected by reopening the trench to the depth required for proper compaction and then shall be refilled and compacted.

I. Puddling or water flooding for consolidating the backfill will not be allowed. The addition of water shall be limited to that needed for increasing the moisture content of the backfill material.

J. Filling and backfilling will not be permitted when either the fill material or sub grade are frozen.

3.04 DISPOSAL

A. Boulders and rocks larger than 6 inches shall be removed from the site and disposed of as directed by the Contracting Officer/Contracting Officers Representative.

B. Surplus excavated material remaining on the site upon completion of backfilling shall be removed from the site and disposed of by the Contractor.

END OF SECTION 02220

CAST IN PLACE CONCRETE 03300-1

SECTION 03300-CAST IN PLACE CONCRETE

PART 1 GENERAL

1.01 DESCRIPTION OF WORK

A. Work Included.

1. Structural cast-in-place concrete, formwork, and fabrication and placement of reinforcement.

B. Related Work Specified In Other Sections.

1. Quality Control - Section 01400.

2. Excavation, Fill, and Compaction - Section 02315.

1.02 QUALITY ASSURANCE

A. Concrete Standards: Comply with provisions of the following standards, except where more stringent requirements are indicated.

1. American Concrete Institute (ACI) 301, "Specifications for Structural

Concrete for Buildings."

2. American Concrete Institute (ACI) 325.9R, "Guide for Construction of

Concrete Pavements and Concrete Bases”.

B. Concrete Manufacturer Qualifications: Manufacturer of ready-mixed concrete products complying with ASTM C 94 requirements for production facilities and equipment.

C. Allowable Tolerances.

1. Construct formwork to provide completed cast-in-place concrete surfaces complying with the tolerances specified in ACI 301.

CAST IN PLACE CONCRETE 03300-2

1.03 SUBMITTALS

A. Submit under provisions of Section 01300.

1. Mix Design for each type of concrete specified. Submit to the Contracting

Officer/COR within 15 days after award of contract, including test data substantiating that the mix design will produce concrete meeting the specified properties. The mix design must be approved by the Contracting Officer, in writing, prior to placing concrete.

2.01 FORMS

A. Contractor shall be responsible for design and construction of form work.

B. Construct form work with plywood, lumber, metal, or other acceptable material to provide continuous, straight, smooth as-cast surfaces. Furnish in largest practicable thickness to withstand pressure of newly placed concrete without bow or deflection.

2.02 REINFORCING MATERIALS

A. Reinforcing Steel.

1. ASTM A615, Grade 60, deformed steel bar concrete reinforcement.

Reinforcement shall be free of rust, dirt, mud, loose scale or any other foreign substances.

2. Comply with ACI 318, Building Code Requirements for Structural

Concrete, for all reinforcing fabrication and installation.

2.03 CONCRETE MATERIALS

A. Cement. Cement shall be Portland cement, Type I-II or Type II, conforming to

ASTM C150. The use of caked or hardened cement will not be permitted.

B. Fly ash. Mix design shall contain fly ash in an amount between 15% and 20% of the cementitious material; ASTM C618, Type C.

C. Water. Water shall be clean and free from deleterious amounts of acids, alkalis, and organic materials.

CAST-IN-PLACE CONCRETE

03300-3

D. Aggregate.

1. Fine. Natural sand, ASTM C33. Fineness modulus shall not be less than

2.5 nor more than 3.0.

2. Coarse. Crushed stone or gravel, ASTM C33. Maximum size of coarse aggregate shall be 3/4 inches.

E. Admixtures.

1. Air-entraining Admixture. Add air-entraining admixture at the manufacturer’s prescribed rate to result in concrete at the point of placement having air content as specified for each mix design.

2. Plasticizer. ASTM C 1017, Type I. Add plasticizer as required to increase workability of fresh concrete, without reducing 28-day compressive strength of concrete.

3. Retarder. ASTM C 1017 Type II, Plasticizing and Retarding, or ASTM C 494 Type D, Water-Reducing and Retarding, as required to extend the setting time of concrete mix, without reducing the 28-day compressive strength of concrete.

2.04 CONCRETE MIXES

A. Mix Design No. 1

1. Application. Caisons.

2. Properties. Compressive strength of 3,000 psi at 28 days. Air content shall be between 4 and 6 percent. The water-cement ratio shall not exceed 5-1/2 gallons per sack of cement (0.49), inclusive of water in the aggregate. A minimum of 540 pounds of cement per cubic yard shall be provided in mix used for exterior flatwork.

3. Admixture: If the batch plant is located such that the time between mixing

(water added to cement and aggregates, or cement batched with aggregates) and discharge at the job site will exceed 1-1/2 hours, then a retarding admixture, as specified above, shall be used in the mix design.

4. The contractor is encouraged to use a plasticizing admixture in the mix

03300-4 design, as specified above, to increase the workability of the concrete and decrease the need to add water to the mix at the job site.

B. Ready-mixed concrete meeting the above specifications shall be used. The

Contracting Officer shall have access to the mixing plant during mixing operations.

C. Adjustments to Concrete Mix: Mix design adjustments may be requested by the

Contractor when characteristics of materials, job conditions, weather, test results, or other circumstances warrant, at no additional cost to the Government. Test data for revised mix designs and strength results must be submitted and accepted before beginning the work.

3.01 TOLERANCES

A. Produce concrete elements of sizes and alignments within the following limits.

Tolerances for items not specifically mentioned shall comply with requirements of American Concrete Institute Standard Specification for Tolerances for Concrete Construction and Materials, ACI 117.

1. Form Offsets: Class C surface, (½").

2. Embedded Items - vertical, lateral, and level alignment: 1", except bearing plates to have vertical and level alignment of 1/4".

3.02 FORM CONSTRUCTION

A. Construct forms complying with ACI 347, to the exact sizes, shapes, lines and dimensions shown, and as required to obtain accurate alignment, location, grades, level and plumb in finished structures. Provide all detail work, construction aids and embedded items as required. Use selected materials to obtain required finishes.

B. Before concrete placement, check the lines and levels of erected formwork.

Make corrections and adjustments to ensure proper size and locations of concrete members and stability of forming systems.

C. During concrete placement, check formwork and related supports to ensure that forms are not displaced and that completed work will be within specified

03300-5 tolerances.

D. Removal of Forms.

1. Form work may be removed after cumulatively curing at not less than 50 degrees Fahrenheit for 24 hours after placing concrete, provided concrete is sufficiently hard not to be damaged by form removal operation, and provided that curing and protection operations are maintained.

2. Coordinate removal with work of other trades.

3.03 REINFORCING STEEL

A. Fabrication.

1. General. Fabricate reinforcing bars to conform to required shapes and dimensions, with fabrication tolerances complying with CRSI “Manual of Standard Practice”. In case of fabricating errors, the contractor will not be allowed to re-bend or straighten reinforcement.

B. Installation.

1. Clean reinforcement to remove loose rust and mill scale, earth, ice, and other materials which reduce or destroy bond with concrete.

2. Position, support, and secure reinforcement against displacement by formwork, construction, or concrete placement operations. Locate and support reinforcing by metal chairs, runners, bolsters, spacers and hangers, as required.

3. Unless otherwise shown on drawings, provide cover as follows:

a. Where concrete is deposited against and permanently exposed to ground, not less than 3 inches.

b. Where concrete is exposed to weather or to ground, not less than 2 inches.

3.04 CONCRETE MIXING

A. Ready-Mix Concrete. Comply with the requirements of ASTM C94 and as herein

03300-6 specified.

1. Addition of water to the mix at project site must be approved by the

Contracting Officer and the resulting mix shall not exceed the specified water/cement ratio. If water is added to the concrete, it shall be mixed for 30 revolutions of the drum at mixing speed. The delivery ticket shall be noted with amount of additional water added and submitted to the Contracting Officer/COR.

2. Concrete shall be discharged at the job within 1-1/2 hours after water has been added to the cement and aggregates or cement batched with the aggregates, unless a longer time is specifically authorized by the Contracting Officer/COR.

3. During hot weather or under conditions contributing to rapid setting of concrete, a shorter mixing time than specified in ASTM C94 may be required.

a. When air temperature is between 85 degrees Fahrenheit and 90 degrees Fahrenheit reduce the mixing and delivery time from 1-1/2 hours to 75 minutes, and when the air temperature is above 90 degrees Fahrenheit, reduce the mixing and delivery time to 60 minutes.

B. Admixtures. Addition of admixtures shall be done only at the batching location.

3.05 PREPARATION

A. Pre-placement Inspection.

1. Before placing concrete, inspect and complete the formwork installation, reinforcing steel and items to be embedded or cast-in.

2. Thoroughly wet wood forms immediately before placing concrete, as required where form coatings are not used.

3. Coordinate the installation of joint materials with placement of forms and reinforcing steel.

4. Dampen the subgrade prior to concreting, if necessary to produce a moist surface, but there shall not be muddy or soft spots or free water on the

03300-7 subgrade.

3.06 ACCESSORIES

A. Embedded Items.

1. Before placing any concrete, determine that all embedded items are firmly secured and fastened in place.

2. Determine that all embedded items required to properly install the work of other divisions have been furnished and installed.

B. Bolt Tolerances.

1. Maximum variation of anchor bolt center lines: 1/8 inch.

2. Allowable tolerances will not serve to relieve the Contractor of the responsibility of fitting different materials together.

3.07 CONCRETE PLACEMENT - GENERAL

A. All concrete shall be placed in the presence of the Contracting Officer/COR or their approved representative. Contractor shall give Contracting Officer a 48-hour notice before placing concrete. Place concrete in compliance with the practices and recommendations of ACI 304, and as herein specified.

B. Water shall be removed from within forms and excavations before and during placement of concrete.

C. Concrete shall not be placed on a frozen subgrade or against any surface having deposits of frost or ice.

D. Deposit concrete as near as practicable to its final location to avoid rehandling or flowing. Do not subject concrete to any procedure which will cause segregation.

In no case is concrete to be allowed to drop freely more than five (5) feet.

E. Do not use concrete which becomes non-plastic and unworkable, or does not meet the required quality control limits, or which has been contaminated by foreign material. Do not use retempered concrete. Remove rejected concrete from the project site and dispose of it in an acceptable location.

03300-8

F. Consolidate concrete placed in forms by mechanical vibrating equipment supplemented by hand-spading, rodding, and tamping. Use equipment and procedures for consolidation of concrete in accordance with the recommended practices of ACI 309, to suit the type of concrete and project conditions.

Vibration of forms and reinforcing will not be permitted.

3.08 COLD WEATHER PLACING

A. Refer to Section 01500 - Paragraph 1.02 - Weather Protection.

B. Protect all concrete work from physical damage or reduced strength which could be caused by freezing actions or low temperatures, in compliance with the requirements of ACI 306 and as herein specified.

C. Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators, unless authorized in writing by the Contracting Officer.

3.09 HOT WEATHER PLACING

A. When hot weather conditions exist that would seriously impair the quality and strength of concrete, place concrete in compliance with ACI 305 and as herein specified.

3.10 SURFACE FINISHES

A. Form Finish.

1. Produce as-cast form finish with materials selected to impart a uniform surface and texture.

2. Formed concrete foundations shall receive an as-cast rough form finish per

ACI 301. Remove fins and other projections; grout tie-holes, and repair honeycombing and surface defects.

B. Protection from Mechanical Injury. During the curing period, protect concrete from damaging mechanical disturbances including load stresses, excessive vibration, and from damage caused by rain or flowing water. Protect all finished concrete surfaces from damage by subsequent construction operations.

END OF SECTION 03300

BASIC MATERIAL AND METHODS 16050-1

SECTION 16050 - BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Supporting devices for electrical components.

2. Electrical identification.

3. Electrical demolition.

4. Cutting and patching for electrical construction.

5. Touchup painting.

1.2 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in

NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

B. Comply with NFPA 70.

1.3 COORDINATION

A. Coordinate chases, slots, inserts, sleeves, and openings through concrete slabs during construction progress to facilitate the electrical installations that follow. Set inserts and sleeves in poured-in-place concrete, masonry work, and other structural components as they are constructed.

B. Sequence, coordinate, and integrate installing electrical materials and equipment for efficient flow of the Work.

C. Coordinate location of access panels and doors for electrical items that are concealed by finished surfaces.

D. Where electrical identification devices are applied to field-finished surfaces, coordinate installation of identification devices with completion of finished surface.

PART 2 - PRODUCTS

2.1 SUPPORTING DEVICES

A. Material: Cold-formed steel, with corrosion-resistant coating

B. Metal Items for Use Outdoors or in Damp Locations: Hot-dip galvanized steel.

C. Slotted-Steel Channel Supports: Flange edges turned toward web, and 9/16-inch- (14

BASIC MATERIAL AND METHODS 16050-2

mm-) diameter slotted holes at a maximum of 2 inches (50 mm) o.c., in webs.

D. Raceway and Cable Supports: Manufactured clevis hangers, riser clamps, straps, threaded C- clamps with retainers, ceiling trapeze hangers, wall brackets, and spring-steel clamps or click- type hangers.

E. Pipe Sleeves: ASTM A 53, Type E, Grade A, Schedule 40, galvanized steel, plain ends.

F. Cable Supports for Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating wedging plug for nonarmored electrical cables in riser conduits. Plugs have number and size of conductor gripping holes as required to suit individual risers. Body constructed of malleable-iron casting with hot-dip galvanized finish.

G. Expansion Anchors: Carbon-steel wedge or sleeve type.

H. Toggle Bolts: All-steel springhead type.

I. Powder-Driven Threaded Studs: Heat-treated steel.

2.2 ELECTRICAL IDENTIFICATION

A. Identification…