BL013_24 Addendum No 1.pdf

January 10, 2024

Addendum No. 1

BL013-24

H-21 Dam Outlet Control Structure Maintenance

The following addition/changes modify the Bid No. BL013-24 “H-21 Dam Outlet Control Structure Maintenance” Contract Documents, dated December 2023, as first advertised on December 13, 2023.

I. Modifications

M1. Replace the Project Specifications in its entirety with the attached Project Specifications. This will include the removal of Specification 01 71 23 and the addition of NRCS Specification 92 Field Fence. All construction surveying requirements are detailed in NRCS Specification Section 7.

II. Attachment A1. Project Specifications.

Acknowledge receipt of this addendum on the firm information page of the request for proposal.

Sincerely, Brittany Bryant, CPPB Purchasing Associate III

Maintenance Project for

Haynes Creek Site 21 Outlet Works

Project Specifications

November 8, 2023

Prepared For:

Gwinnett County Department of Water Resources

684 Winder Highway Lawrenceville, Georgia 30045

(678) 376-6700

Prepared By:

GA Registered Engineering Firm PEF004433

Freese and Nichols, Inc.

2180 Satellite Blvd, Suite 235 Duluth, Georgia 30097

(470) 645-3092

Maintenance Project for Haynes Creek Site 21 Outlet Works

TABLE OF CONTENTS

Project Specifications

Division 01

Section Title 01 00 00 01 11 00 01 22 15 01 26 00 01 29 00 01 31 19 01 32 33 01 33 00 01 41 00 01 42 19 01 43 00 01 45 29 01 50 00 01 65 00 01 66 00 01 74 19 01 74 23 01 78 36 01 78 39

General Requirements Summary of Work Measurement and Payment Change Management Application for Payment Procedures Project Meetings Photographic Documentation Submittal Procedures Regulatory Requirements Reference Standards Quality Assurance Testing Laboratory Services Temporary Facilities and Controls Product Delivery Requirements Product Storage and Handling Requirements Construction Waste Management and Disposal Final Cleaning Warranties Project Record Documents

Division 10

Section Title 10 89 01 Fish Stocking and Removal

Division 32

Section Title 32 12 16 Asphalt Paving

Maintenance Project for Haynes Creek Site 21 Outlet Works

Technical Specifications

Construction Specifications

Section Title 2 Clearing and Grubbing 3 Structural Removal 5 Pollution Control 6 Seeding, Sprigging, and Mulching 7 Construction Surveys 8 Mobilization and Demobilization 11 Removal of Water 21 Excavation

Earthfill Rockfill

26 Topsoiling 61 Rock Riprap 71 Water Control Gates 81 Metal Fabrication and Installation 92 Field Fence 94 Contractor Quality Control 95 Geotextile

Material Specifications

Section Title 521 Aggregates for Drainfill and Filters 523 Rock for Riprap 571 Slide Gates 581 Metal 582 Galvanizing 591 Field Fencing Material 592 Geotextile

Maintenance Project for Haynes Creek Site H-21 Outlet Works November 2023

01 00 00-1

SECTION 01 00 00

GENERAL REQUIREMENTS

PART 1 – GENERAL

1.1 SUMMARY

A. SECTION INCLUDES:

Section Title

1.2 References

1.3 Definitions

1.4 System Description

1.5 Contract Drawings

1.6 Schedules

1.7 Or Equals

1.8 Submittals

3.1 Access

3.2 Aid to the Injured

3.3 Buildings and Shanties

3.4 Cleaning

3.5 Cleaning and Crowning of Streets

3.6 Cleaning Surfaces

3.7 Contractor’s Office

3.8 Dimensions and Elevations

3.9 Emergency Response

3.10 Environmental Contamination

3.11 Existing Irrigation and Sprinkler Systems

3.12 Existing Utilities

3.13 Inspections

3.14 Insufficiency of Safety Precautions

3.15 Intoxicating Substances

3.16 Landscape Protection

3.17 Lighting

3.18 Means and Methods

3.19 Measures and Weights

3.20 Mill and Shop Tests and Inspection

3.21 Monuments and Landmarks

3.22 Obstructions Encountered

3.23 Overtime Work

3.24 Ownership of Materials

3.25 Painting and Coatings

3.26 Power

3.27 Protecting Existing Buildings and Structures

3.28 Protection

3.29 Record Drawings

3.30 Roadway Right-of-Way, Working Facilities, and Easements

3.31 Safety

3.32 Sales Tax

3.33 Sanitary Measures.

3.34 Schedules

3.35 Shoring, Formwork, and Temporary Structures

3.36 Site Video

3.37 Sound Attenuation

01 00 00-2

3.38 Storage

3.39 Temporary Heat

3.40 Use of Facilities

3.41 Use of Streets

3.42 Utility Relocations or Modifications

3.43 Water Supply

3.44 Work in Inclement Weather

1.2 REFERENCES

A. Unless otherwise specified, references to documents shall mean the documents in effect at the time of Advertisement for Bids or Invitation to Bid (or on the effective date of the Agreement if there were no bids). If referenced documents have been discontinued by the issuing organization, references to those documents shall mean the replacement documents issued or otherwise identified by that organization or, if there are no replacement documents, the last version of the documents before it was discontinued shall apply.

1.3 DEFINITIONS

A. Whenever the following abbreviations are used, they shall refer to and designate:

“ACI” - American Concrete Institute “AISC” - American Institute of Steel Construction “ANSI” - American National Standards Institute “ASME” - American Society of Mechanical Engineers “ASTM” - American Society for Testing and Materials “AWWA” - American Water Works Association “GCDOT” – Gwinnett County Department of Transportation “GCDWR” – Gwinnett County Department of Water Resources “GDOT” – Georgia Department of Transportation “SDP” – Safe Dams Program of the State of Georgia Environmental Protection Agency

1.4 SYSTEM DESCRIPTION

A. Performance Requirements

The Work shall be comprised of and for the construction of GCDWR infrastructure as identified in the Bid Schedule, including but not limited to, safety, installation, connections, sterilizing, testing, and fabrication with any and all appurtenances in accordance with the Contract Documents, complete and fully operational in compliance with federal, state, county, and local codes and regulations, standards, and specifications as applicable at the time of bid unless otherwise directed in writing by GCDWR.

1.5 CONTRACT DRAWINGS

A. Existing conditions shown on the Contract Drawings were derived from the best available information at the time and preparation of the Contract Documents and do not purport to be completely correct. The Contractor is therefore directed to perform any and all field surveys that are deemed necessary to satisfy the Contractor to the actual surface and sub-surface conditions prior to submitting his/her bid, upon which his/her bid shall be based.

B. The Work proposed, its connections, routing, and design intent was based on the available information of the existing conditions. The Contractor shall field verify the nature and extent of the Work proposed prior to ordering any materials. No payment shall be authorized for materials not retained as part of GCDWR facilities and its appurtenances.

C. Additionally, GCDWR reserves the right to require deviations from the Contract during construction where such deviations are deemed necessary to provide for future connections or to provide flexibility in the maintenance and operation of the system and increase the efficiency and reliability of service to its customers. Deviations will be addressed using contract unit prices. If this cannot be accomplished see Article 10 of the General Conditions.

01 00 00-3

D. The Contractor shall maintain, on site, one (1) complete set of Contract Documents throughout the course of the Work and make available upon request by GCDWR or SDP.

1.6 SCHEDULES

A. Contractor shall prepare, furnish, distribute, and periodically update the Project Progress Schedule and Schedule of Submittals, as specified herein. Contractor shall also prepare and furnish a Schedule of Values, as specified herein.

B. Acceptance of the Contractor’s Project Progress Schedule, Schedule of Submittals, and Schedule of Values, and revisions thereto, shall in no way relieve Contractor of any duties and obligations under the Agreement. Such approval is limited to the format of the schedule, and does not in any way indicate approval of, or concurrence with, the Contractor’s means, methods, and ability to carry out the Work.

C. Submit a monthly update of the Project Progress Schedule and Schedule of Submittals with each request for payment.

D. Failure of the Contractor to meet the schedule submission milestones will result in withholding of monthly payments, until deliverables associated with the milestones are received. Payments will be withheld should the Contractor fail to deliver acceptable schedules within thirty (30) days after date of Notice to Proceed.

1.7 OR EQUALS

A. For the purposes of these Contract Documents, “or equal” item(s) shall be defined as:

1. A product or manufacturer offered as a replacement to a specified product or manufacturer where the term “or equal” is included after the list of acceptable manufacturers in the Specification.

B. An item which is offered where no specific product, manufacturer, means, methods, technique, sequence, or procedure of construction is specified or shown on the Drawings, shall not be considered a replacement, and shall be at the option of the Contractor, subject to the provisions in the Contract Documents for that item.

C. For products specified only by a referenced standard, the Contractor may select any product by any manufacturer, which meets the requirements of the Specifications, unless indicated otherwise in the Contract Documents.

D. If the manufacturer is named on the Drawings, or in the Specifications as an acceptable manufacturer, products of that manufacturer meeting all requirements of the Specifications and Drawings are acceptable.

E. Whenever the design is based on a specific product of a particular manufacturer, that manufacturer will be shown on the Drawings and/or listed in the list of approved manufacturers in the Specifications. Any Contractor intending to furnish products other than the listed acceptable manufacturer(s) shall:

1. Verify that the item being furnished will fit in the space allowed, perform the same function(s), and have the same capabilities as the item specified,

2. Include in the item price the cost of all accessory items, which may be required by the “or equal” product,

3. Include the cost of any architectural, structural, mechanical, piping, electrical, instrumentation, or other modifications required, and

4. Include the cost of required additional work by the Engineer, if any, to accommodate the item.

F. Approval by the Engineer and Owner of an “or equal” item as an acceptable manufacturer, is dependent on determination that the product offered:

1. Is essentially equal in function, performance, quality of manufacture, ease of maintenance, reliability, service life, availability of local technical support, and other criteria to that on which the design is based, and

2. Will require no major modifications to structures, electrical systems, control systems, or piping systems.

G. “Or equal” items will be considered only if the term “or equal” is included after the list of acceptable manufacturers in the Specification.

01 00 00-4

H. The Contractor shall submit shop drawings on the “or equal” item for the Engineer’s review in accordance with Specification Section 01 33 23 Submittal Procedures.

I. The cost of Engineer’s and Owner’s factory inspection, reference project tour, or mill inspection, required to evaluate the acceptance of the “or equal” product shall be borne by the Contractor.

1.8 SUBMITTALS

A. Specified submittals shall be to the Engineer, and submitted by the Contractor only, (i.e. NOT subcontractors, vendors, suppliers, etc.).

B. Each submittal, with variations from the requirements of the Contract Documents, shall make specific mention of such variations. Those declared variations found acceptable by the Engineer or GCDWR shall require the Contractor to take suitable action for the proper installation in accordance with the Contract Documents.

Variation not declared or suitable action not taken by the Contractor shall not relieve Contractor of error or the responsibility for executing the Work, and cost for remedial actions deemed necessary by the Engineer or

GCDWR.

PART 2 – PRODUCTS – (NOT USED)

PART 3 – EXECUTION

3.1 ACCESS

A. The Contractor shall enable and facilitate access to all parts of the Work to GCDWR and third parties to inspect, certify, or observe when required by law; or to those who require reasonable access to the Work by reason of specific contractual relationship to the Work.

3.2 AID TO THE INJURED

A. The Contractor shall furnish, maintain, and make ready and available for immediate use, first aid to the injured with standing arrangements for the immediate removal, transport, and hospital treatment of any personnel who may be injured on the Work, as required by federal, state, county and local laws, codes and regulations.

3.3 BUILDINGS AND SHANTIES

A. No provision shall be allowed for the housing of men/women employed for the Work on land owned or leased by the County, unless a permit in writing is secured from GCDWR. Should permission be asked and granted, the Contractor shall comply with all regulations regarding the construction and maintenance of such buildings.

3.4 CLEANING

A. With completion of the Work, the Contractor shall return the surface conditions of the work area to pre-work status, unless where otherwise specified in the Contract Documents. The finished surface Work shall leave the grounds in a neat and approved condition, including but not limited to, the removal of material, debris, equipment, structures, and the Contractor’s office.

B. Contractor shall terminate all temporary utilities as applicable or as required by the Contract Documents.

Contractor shall also clean out all drains, pipes, inlets, and miscellaneous and appurtenant structures of debris from his/her operations.

3.5 CLEANING AND CROWNING OF STREETS

As Work progresses and before the Work herein specified is accepted, the Contractor shall, upon notice from GCDWR, thoroughly clean all streets, roads, sidewalks, and lawns free from all debris and dirt accumulating from the construction, shall open all gutters so that free drainage may be had, and on unpaved streets and roads, shall completely crown the roadway within the limits of the herein specified Work.

01 00 00-5

3.6 CLEANING SURFACES

A. Contact surfaces between existing and new Work shall be free from debris, dirt, grease, or foreign matter to the extent of wire brushing and washing, and such surface preparation as recommended by the manufacturer or directed by GCDWR. The cost for cleaning shall be included in the Prices Bid and stipulated for the various items of the bid.

3.7 CONTRACTOR’S OFFICE

A. Facilities are not required to be on the project site. The Contractor may provide adequate indoor facilities for conducting project meetings; and at a minimum shall be equipped with power, water, lighting, heating ventilation and air conditioning, and a meeting area with table and chairs. If in the opinion of GCDWR, the location of the facility is not convenient to project personnel, GCDWR may provide suitable facilities for project meetings.

3.8 DIMENSIONS AND ELEVATIONS

A. In the Contract Documents, figured dimensions shall take precedence over scaled dimensions, detailed drawings shall take precedence over general drawings, and elevations and slopes shall be as indicated on the Drawings, or as directed by the Engineer.

3.9 EMERGENCY RESPONSE

A. The Contractor shall respond within four (4) hours to any emergency that may arise in connection with the Work on a twenty-four (24) hour per day, seven (7) days per week basis. Should County maintenance forces be called upon by the County to rectify a problem created by the Contractor, the Contractor shall be responsible for all costs incurred by the County, plus twenty-five (25) percent, with a minimum charge of one hundred

(100) dollars per occurrence. This charge is subject to change depending upon the severity of the emergency and will be determined by Gwinnett County.

3.10 ENVIRONMENTAL CONTAMINATION

A. Precautions against property endangerment and/or damages from water, sewage, seepage, storm, stormwater, and flood flows shall be active during the course of Work. Cost for precautions shall be included in the Prices Bid and stipulated for the items of Work.

3.11 EXISTING IRRIGATION AND SPRINKLER SYSTEMS

A. The Contractor shall be responsible for restoring the soundness to any portion of an existing irrigation or sprinkler system disturbed and/or damaged by the Work. No compensation shall be made for this Work.

3.12 EXISTING UTILITIES

A. Existing utilities shall be maintained, except when a utility or a utility feature requires moving. In such circumstances, the Contractor shall notify the utility before any such Work is started for approval. In the event that the utility grants approval for such movement that results in damage, it shall be repaired by the authorities having control of the same, and the expense of said repairs shall be paid by the Contractor or deducted from the monies which are due or to become due to said Contractor. No underground or overhead facilities encountered shall be disturbed without proper authority and then only in such manner as said owner may prescribe and approve.

Should it become necessary to change the position, or permanently or temporarily remove part of a utility in order to clear the structure being built or to permit the Contractor to use a particular method of construction, the Contractor shall notify GCDWR of the location and circumstances and shall cease work if necessary, until satisfactory arrangements have been made by the Owners of the said utility to properly care for or relocate the same as necessary to permit the Work to proceed as specified. No claims for damages shall be allowed the Contractor on account of any delay occasioned thereby. The entire cost of the changes or temporary or permanent removal of such utilities shall be borne by the Contractor and the cost thereof shall be included in the Prices Bid and stipulated for the various Items of the Bid.

01 00 00-6

B. Nothing contained herein shall relieve the Contractor of doing such Work at his cost and expense as is specifically included in the Contract Documents.

C. Anything contained herein shall not relieve the Contractor of his obligation to support and protect all pipes, conduits, and other structures which may be encountered during the construction of Work, and to make good all damages done to such pipes, conduits, and other structures, as provided in this specification. Any such damages must be repaired without delay and the cost of such repairs must be borne by the Contractor.

3.13 INSPECTIONS

A. GCDWR shall schedule a pre-construction meeting with the Contractor a minimum of 24-hours prior to construction. During construction the GCDWR Inspector shall be the lead person for witnessing construction including, but not limited to, taps, cores, bores, wet cut-ins, flow diversions, shutdowns, testing, chlorination, sampling and work that may be required or determined necessary by the Engineer. Should existing conditions necessitate a change or cost to the Contract Documents, the GCDWR Project Manager shall be notified for approval prior to proceeding.

B. The GCDWR Inspector shall review and approve quantities of unit items installed and/or materials stored in the Work by the Contractor prior to Contractor’s submittal for payment to GCDWR Project Manager. Failure to do so may result in delays in processing payments.

C. Upon notification by the Contractor, GCDWR shall perform an inspection of the finished surface features and conditions for acceptance of the Work. Should discrepancies exist, the Contractor shall make restorations as directed, until acceptance is granted by GCDWR, upon which final payment shall be made for the Work.

D. Contractor shall pay for second inspections, if so required by the County.

3.14 INSUFFICIENCY OF SAFETY PRECAUTIONS

A. If at any time, in the opinion of the County, the Work is not properly instituted or maintained and is not in accordance with federal, state, county and local laws, codes and regulations, the Contractor shall execute immediate measures to bring into compliance unsatisfactory surroundings. In the event that the Contractor is not readily available at the Work to be notified of the insufficiency of safety precautions, then the County may elect to institute or restore such Work to a state deemed safe. Such actions by the County shall in no way release the Contractor from judiciary duty specified. Costs to correct safety precautions shall be at the Contractor’s expense.

3.15 INTOXICATING SUBSTANCES

A. The Contractor shall neither permit nor suffer the introduction or use of intoxicating substances, such as but not limited to, alcohol or illegal drugs upon or about the Work jobsite.

3.16 LANDSCAPE PROTECTION

A. Landscaping, such as but not limited to, ornamental trees, shrubbery, hedges, flower beds, decorative berms, decorative rocks, ponds, timbers, and their appurtenances shall not be removed or disturbed without approval from GCDWR. However, should it be required to remove or disturb such items, the Contractor shall seek approval no later then 72 hours in advance of conflict. If and when approval is granted by GCDWR, the Contractor shall take the proper precautions to preserve, protect, and reestablish such items along the line of or contiguous to the Work. All landscaping shall be restored to the same or better general conditions as existed prior to commencement of the Work. If deemed by GCDWR to be damaged, each item damaged shall be replaced with the same type and like size. Cost for removal and relocation shall be considered as having been included in the Prices Bid and stipulated for the various items of Work. Cost for restitution shall be borne by the Contractor.

3.17 LIGHTING

A. Except for acts of nature, the Work shall be secured by such means to prevent loss to health, limb, and property. Adequate lighting shall be provided and maintained during periods of Overtime Work, from one-half (½) hour before sunset to one-half (½) hour after sunrise. Contractor shall provide adequate lighting for safety

01 00 00-7 and performance of construction operations and provide the necessary safety and other facilities required for work during normal working hours and for work at night.

3.18 MEANS AND METHODS

A. Unless otherwise expressly provided in the Contract Documents, the means and methods of construction shall be such as the Contractor may choose. However, GCDWR maintains the right to reject or alter the Contractor’s proposed means and methods, which shall not produce finished Work in accordance with the terms of the Contract, or to GCDWR right as administrator of the construction to direct the Contractor to more stringent means or methods.

B. If determined by GCDWR that the Contractor’s work methods, features, and/or equipment appears to be unsafe, insufficient, or improper, GCDWR may order the Contractor to improve their safety, sufficiency, and/or character, whereby the Contractor shall conform to such orders; but should GCDWR not demand any increase of such safety precautions, insufficiency, inadequacy or any improvement shall not release the Contractor from his obligation to secure the work methods, safety precautions, work features, and/or equipment for the safe conduct and quality of work specified, and shall not constitute a cause of action for damages.

C. The Contractor shall have the right to deny access to the Work during construction, except to GCDWR and third parties to inspect, certify, or observe when required by law; or to those who require reasonable access to the Work by reason of specific contractual relationship to the Work.

3.19 MEASURES AND WEIGHTS

A. Whenever so requested as deemed necessary by GCDWR, the Contractor shall provide accurate scales, adequate equipment, and the necessary assistance for weighing and/or measuring materials for the installed Work as specified. It is understood and agreed that a “ton” shall mean the short ton of two thousand (2,000) pounds.

3.20 MILL AND SHOP TESTS AND INSPECTION

A. Where the specifications call for mill or shop tests, the Contractor shall furnish triplicate copies of attested certificates signed by a duly authorized representative of the manufacturer, showing details of quality or performance sufficient to demonstrate compliance with the Contract Documents. Inspection of materials shall be made as required by these specifications.

3.21 MONUMENTS AND LANDMARKS

A. Monuments or landmarks shall not be damaged or removed by the Contractor or any of his/her employees without the written consent of GCDWR. Any monument or landmark so removed shall be replaced by GCDWR at the expense of the Contractor. The cost thereof shall be retained from the monies due or to become due the Contractor under this agreement.

3.22 OBSTRUCTION ENCOUNTERED

A. The giving of this information upon the Work Assignment Contract Drawings shall not relieve the Contractor of his/her obligation to support and protect all pipes, conduits, and other structures which may be encountered during the construction of Work, and to make good all damages done to such pipes, conduits, and other structures, as provided in this Specification. The Contractor shall locate obstructions ahead of the Work.

Should the Contractor determine that the existing information is not correct, and an obstruction shall be encountered, he/she shall immediately contact GCDWR.

3.23 OVERTIME WORK

It is the intent of the contract that the Contractor provide sufficient work force at all times during normal working hours and days of each week to complete the Work without resorting to overtime work. The definition of normal working hours and days is an eight (8) hour day, Monday through Friday, Gwinnett County-recognized legal holidays excepted, during a consecutive period as agreed upon in the area of the Work, not counting the lunch period; and the definition of normal work week is the aggregate of the five (5) consecutive eight (8) hour days, Monday through Friday inclusive, maximum, the same holidays excepted.

01 00 00-8

A. Night work or work on Saturdays, Sundays, or Gwinnett County-recognized legal holidays, requiring the presence of GCDWR personnel or an inspector, shall not be permitted except in case of emergency, and then only to such extent as is absolutely necessary, and with the written permission of GCDWR.

B. Should the Contractor, for his/her convenience, request permission to work overtime or to work on Saturdays, Sundays, or trade recognized legal holidays in the area of the Work, the County shall have the right to deduct sufficient sums from the monies due the Contractor to cover payment of additional salaries for the GCDWR personnel as are normally employed on the Work.

C. Should it become necessary for Work to be accomplished at the direction of GCDWR for the convenience and/or requirement of the GCDWR outside of normal working hours, then full inspection and engineering shall be provided at no additional cost to the Contractor during those hours.

D. During periods of overtime work, the Contractor shall provide the necessary facilities required for work during normal working hours and for work at night. The Contractor shall be in readiness in time of emergency even nights, Saturdays, Sundays, and holidays at no cost to the County.

3.24 OWNERSHIP OF MATERIALS

A. Existing material removed that shall not be relocated or reused in the Work shall be moved off site within 48 hours, becoming the property of the Contractor. The cost for such Work shall be as stipulated by the Prices Bid, for the various items of the Work.

B. Existing material recovered that shall be relocated or reused in the Work shall be refurbished or renovated as required, unless otherwise directed by GCDWR.

C. Existing material removed shall be disposed of in a manner approved by GCDWR at the Contractor’s expense.

D. New material not installed in the Work shall be moved offsite and remain the property of the Contractor. Only material that is installed by the Contractor will be paid for. However, the Contractor may submit pay applications for stored material in accordance with Section 14.02 of the General Conditions.

E. All manhole covers, salvaged fire hydrants and any other material bearing the name of Gwinnett County shall be returned to GCDWR.

3.25 PAINTING AND COATINGS

A. It is the intention of these specifications that metal permanently installed in the Work shall be protected by a durable coating of paint, or other approved material, and that all such metal surfaces not buried in the earth or masonry shall be left clean and well painted at the completion of the Contract, and in accordance with detailed requirements as may hereinafter be set forth.

3.26 POWER

A. The Contractor shall make his/her own arrangements for power. No payment shall be made for cost of obtaining power. The cost for power shall be as stipulated by the Prices Bid, for the various items of the Work.

3.27 PROTECTING EXISTING BUILDINGS AND STRUCTURES

The Contractor shall take the necessary precautions to protect, including but not limited to, buildings, bridges, structures, and substantial walls or fences which may be encountered or endangered in the execution of the Work, not otherwise provided for, shall repair and make good any damages caused by reason of his operations and restore such property to its state before the damages. Existing walls and fences that are removed due to the execution of the Work shall be replaced by the Contractor and, where required or directed by GCDWR, temporary fencing shall be installed by the Contractor. No payment shall be made for said Work or material.

3.28 PROTECTION

A. The Contractor shall furnish and maintain satisfactory protection to the Work against injury by weather, flooding, or breakage thereby permitting all Work to be left in a perfect condition at the completion of the Work.

01 00 00-9

3.29 RECORD DRAWINGS

A. The Contractor shall be furnished one set of Contract Drawings for the purpose of recording information on the as installed Work, as specified in Section 01 78 39 Project Record Documents. The information shall be correct and presented on the Drawings and returned to GCDWR for acceptance.

B. The Contractor shall provide Georgia State Plane, West Zone GPS coordinates for all appurtenances (fire hydrants, manholes, junction boxes, valves (new or existing), etc.) associated with the work.

3.30 ROADWAY RIGHT-OF-WAY, WORKING FACILITIES, AND EASEMENTS

A. Work within the limits of private property and rights-of-way, shall be done in conformity with all applicable permits and agreements with the County and the owners of such private property, easements, or rights-of-way. Whether or not such a condition be part of the agreement, care shall be taken to avoid injury to the premises entered, which premises shall be left in a neat and orderly condition by the removal of rubbish and the grading of surplus materials, and the restoration of said private property to the same or better general conditions as at the time of entry for Work to be performed under this contract. The Contractor shall not enter any easement without first confirming with GCDWR that such easement is fully executed.

B. The Contractor shall not (except after consent from the proper parties), enter or occupy with labor, tools, or equipment on any land outside the rights-of-way or property of the County.

C. The Contractor shall be allowed use of the site designated for construction as necessary for the Work.

However, existing access to properties shall be maintained or adequate access provided during the course of the Work. Cost for access shall be included in the Prices Bid and stipulated for the various items of the Work to be done under this contract.

D. Work that shall be performed on private property or easements that requires granted access beyond the established road right-of-ways shall be done in conformity with all permits and agreements between Gwinnett County and property owners. Should the Contractor desire or require additional space outside the limits of Work, he/she must arrange for such space with property and easement owners at his/her own expense. Legal binding agreements for such additional space must be in writing and a copy filed with GCDWR, prior to accessing such lands. In such agreements, care shall be taken to avoid injury to the premises entered and shall be left in a neat and orderly condition as existed at the time of entry for Work.

E. When working on easements, the Contractor shall install Tree Save Barriers along all boundaries of the work area, unless otherwise specifically directed by GCDWR, prior to any Work. Work premises shall be left in a neat and orderly condition by the removal of rubbish, debris, and the grading of surplus materials and the restoration of said private property to the same general conditions as existed at the time of entry for Work.

3.31 SAFETY

A. Unless otherwise specified, all federal, state and county regulations shall be maintained during the course of the Work.

3.32 SALES TAX

A. The Contractor shall furnish GCDWR with certified copies of paid invoices or their equivalent proof covering sales tax paid on items which GCDWR is eligible for tax refund; none of which shall be refunded or credited to the Contractor.

3.33 SANITARY MEASURES

Sanitary conveniences shall be employed prior to beginning the Work in sufficient number, in such manner and in such places as shall satisfy GCDWR. Such sanitary conveniences shall be operated and maintained in such a manner as to remove harmful effects to personnel or environment. All persons connected with the Work are obliged to use the conveniences provided and shall in no way violate these provisions. Violations shall result in an immediate dismissal of the employee and removal from the Work. Only upon written consent by GCDWR shall the violator regain access to the Work. Sanitary conveniences shall be maintained during the Work and in compliance with the local Health Department and GCDWR. When possible, sanitary conveniences shall be

01 00 00-10 placed in locations that least impact public view. Upon completion of the Work, the Contractor shall remove sanitary conveniences without deleterious effect.

3.34 SCHEDULES

A. The Project Progress Schedule shall be plotted on a minimum eleven-inch by seventeen-inch (11” x 17”) size sheets with the flow of activities from left to right. Printing shall be in color and suitable for half-size reproduction. No lettering or numbering shall be less than one-eighth-inch (1/8”) in height for capital letters and numbers. The critical path shall be clearly marked and readily identifiable.

B. The Project Progress Schedule shall be a Critical Path Method (CPM) Network Diagram, and include:

1. Furnish an updated diagram with all activities and restraints. This includes providing an “As-Built” Schedule with completion dates for all key monthly completion and delivery dates,

2. Provide updated Project Progress Schedule graphics in color showing progress-to-date and completion schedule. The critical path shall be clearly identified,

3. A legend clearly identifying each symbol used,

4. Be prepared in the form of a time-scaled CPM network,

5. Group activities by facility and major area of work. The identification number of the individual activities shall be coded such to provide the grouping,

6. Be prepared in chronological order of the beginning of each item of work,

7. Have a horizontal time scale based on calendar days and identify the Monday of each week,

8. Show the order and interdependencies of the activities and the sequence in which the work is to be accomplished as planned by the Contractor. The diagram shall show how the start of a given activity is dependent upon the completion of the preceding activities, and how its completion restricts the start of following activities. Float need not be shown on the network diagram,

9. Show all activities relating to the construction of the work, and include the following information related to the activities:

a. Activity number

b. Activity description

c. Percent complete

d. Estimated duration, in working days, of each activity

e. Start date

f. Finish date

10. Show all planned facility shutdowns, including temporary relocations, temporary bypasses, and transitions from existing to temporary, temporary to new, and the like.

a. For each anticipated shutdown included in the schedule, submit within thirty (30) days prior to the planned shutdown, a description of the shutdown, duration, anticipated start and completion dates, related preparation work, and related temporary facilities to be provided.

11. Show adverse weather days on the critical path.

a. The number of adverse weather days per month shown on the critical path of the schedule shall not be less than the mean number of days for that particular month, in which precipitation meets or exceeds 1/10-inch, liquid measure.

b. The mean number of days in which the precipitation meets or exceeds 1/10-inch, liquid measure, will be based upon a thirty (30) year average of precipitation recorded and described by the National Oceanic and Atmospheric Administration (NOAA).

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c. The total number of adverse weather days shall be monitored and agreed to monthly by Contractor, Engineer, and Owner. The Project Progress Schedule shall be updated to reflect the accrual of adverse weather days agreed to and enacted by a Contract Time extension.

12. Show the following for specified submittals of Shop Drawings, product data, samples, and materials:

a. Submittal date,

b. Review period, based on fourteen (14) calendar day review period,

c. Fabrication duration,

d. Delivery dates.

13. Show the following events and milestones in addition to construction activities:

a. Notice to Proceed,

b. Milestones,

c. Schedule of Submittals

d. Operational Testing (including air testing, chlorination, CCTV, etc.)

e. Owner coordination

f. Notification Periods

g. Coordination with separate contracts/contractors

h. Owner activities impacting the Work.

C. The Project Progress Schedule update shall coincide with the end of the pay period. The update shall be used to create the monthly payment application request. No monthly payment request will be processed unless the Project Progress Schedule is updated and submitted to the Engineer.

D. The Schedule of Values shall be of the following form:

1. Type schedule on eight and one-half –inch by eleven-inch (8½” x 11”) white paper,

2. Contractor’s standard forms and automated printouts may be used,

3. Identify Schedule of Values information with:

a. Title of Project

b. Project Location

c. Purchase Order Number

d. Name of Engineer Firm

e. Name and Address of Contractor

f. Bid Number (BL)

g. Date of Submission

E. The Schedule of Values shall list the installed value of the component parts of the Work in sufficient detail to serve as a basis for computing values for progress payments during construction. Breakdown shall be by utility, then by CSI Format, for ease of field verification of quantities completed.

F. For Schedule of Values, follow the Bid Form as the format for listing component items. Identify each item with number and title of the respective major section of the Specifications.

G. For each major line item, list sub values of major products or operations under the item.

H. For the various portions of the Work:

1. Each item shall include a directly proportional amount of the Contractor’s overhead and profit.

2. For items on which progress payments will be requested for stored materials, breakdown the value into:

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a. The delivered and unloaded cost of the materials, with taxes paid. Owner shall require invoices for proof of purchase.

b. The total installed value, including Contractor’s overhead and profit, less the value of stored material item a. above.

3.35 SHORING, FORMWORK, AND TEMPORARY STRUCTURES

A. The Contractor shall take full responsibility including the hiring of a practicing licensed professional engineer that may be needed for the adequacy and safety throughout erection, use and removal of all temporary Work such as shoring and supports during all phases of the Work, formwork, and supports for concrete, temporary protection, and structures of all kinds.

3.36 SITE VIDEO

A. Prior to the Work, the Contractor shall perform and supply GCDWR a thoroughly detailed video of the worksite and its contiguous area. The video shall be of such quality as to view and establish existing conditions in detail and used to render a decision where no other documentation is available. Site videos made from a moving vehicle will not be accepted.

3.37 SOUND ATTENUATION

A. The Contractor shall, during the course of the Work, comply with Gwinnett County Noise Ordinance unless GCDWR enforces a stricter standard.

B. Work operations, machinery, equipment, and material handling shall be performed in such a manner as to avoid and eliminate unnecessary noise. Noise deemed unacceptable by the County shall be immediately terminated.

3.38 STORAGE

A. Materials, equipment, tools, and machinery required for the Work shall be neatly and compactly piled in such a manner as to cause the least inconvenience to property owners and traffic. Storage shall be in areas approved by GCDWR. Fire hydrants, water and gas shut-off boxes, underground power and telephone line manholes shall, at all times, be kept free and unobstructed, and shall be left uncovered by such materials.

3.39 TEMPORARY HEAT

A. The Contractor shall supply temporary heat for such period of time and at such temperature as needed for the proper protection and execution of the Work. No cost shall be paid for temporary heat.

3.40 USE OF FACILITIES

A. The County shall have the right or grant permits to connect any conduit, pipeline, or structure with the Work and its appurtenances at any time before the Work is accepted. The Contractor shall not interfere or be granted compensation for such Work.

3.41 USE OF STREETS

A. Access: During the progress of the Work, the Contractor shall make ample provisions for both vehicular and foot traffic on public roadways except during periods of road closures approved by Gwinnett County, and shall indemnify and save harmless Gwinnett County from any expense whatsoever due to the Work. The Contractor shall provide, but not limited to, free access to all driveways, fire hydrants, water, and gas valves located along the line of Work. Gutters and waterways must be kept open or other provisions made for the removal of stormwater.

B. Street intersections may not be blocked, except for one-half (½) the roadway at any given time, and the Contractor shall lay and maintain temporary driveways, bridges, and crossings, such as in the opinion of GCDWR are necessary to reasonably accommodate the public.

C. Traffic Control:

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1. Adequate signs, barricades, and lights, in accordance with the standards of GDOT, necessary to protect the public shall be provided.

2. Flagmen to direct traffic shall be employed continuously during periods when only one-way traffic can be maintained or when equipment is operated back and forth across the pavement areas.

3. Roadway disturbances shall not be left unfilled overnight, except in emergencies, and in such cases adequate precautions shall be exercised to protect traffic.

D. Procedural Rules: Work in roads shall be in accordance with the rules and regulations of the controlling agency.

E. In the event of the Contractor's failure to comply with these provisions, GCDWR may cause the same to be done, and shall deduct the cost of such Work from any monies due or to become due the Contractor under this agreement, but the performance of such Work by GCDWR or at its instance, shall serve in no way to release the Contractor from his general or particular liability for the safety of the public or of the Work.

3.42 UTILITY RELOCATIONS OR MODIFICATIONS

A. Should, in the course of the Work, a need arises to relocate or modify a portion of GCDWR existing piping system, the Contractor shall immediately notify GCDWR for approval to proceed with such Work in accordance with the Contract Documents, or as directed by GCDWR. Removal of the existing piping system shall include, but not be limited to, the removal of its bulkheads, thrust restraints, piping appurtenances, concrete, and/or masonry that was exposed by excavation in part or whole, except for tie-rods beyond the limits of trenching.

Without exception, any part of an existing restraint system relevant to the remaining existing piping system shall remain and be supplemented with additional restraint to maintain an unimpaired piping system. The cost for such Work shall be as stipulated by the Prices Bid, for the various items of the Work.

3.43 WATER SUPPLY

A. In the vicinity of the Work, GCDWR shall make available water required to execute the Work. The Contractor shall be responsible for the retrieval, transport, and delivery of all water with all means to protect and maintain the integrity of GCDWR water system at his/her cost in accordance with all applicable rules and regulations.

When water is required for the Work, the Contractor shall obtain a hydrant water meter from GCDWR Customer Service, at no up-front cost to the Contractor. The Contractor shall notify GCDWR of all project water usage by providing meter reads to the Project Inspector by the first business day of the month for project tracking purposes. If the hydrant meter is kept for 6 months, the Contractor will be contacted via email to bring the meter on a specified date, to GCDWR warehouse for recalibration testing.

3.44 WORK IN INCLEMENT WEATHER

A. The Contractor shall take into account historical weather conditions and potential difficulties that may be encountered for completing the Work demonstrated in the work schedule. Contractor shall provide adequate protection against unfavorable weather to the satisfaction of GCDWR. Weather shall not be grounds for contract extension of available workdays unless, such should be most adverse, and reasonable effort to perform the Work is exercised, and affected construction activities lie on the critical path of the current, approved Project Progress Schedule.

B. The attachment, following “End of Section 01 00 00” is a part of this Specification.

1. Weather Delay Monthly Report

END OF SECTION 01 00 00

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Maintenance Project for Haynes Creek Site H-12 Outlet Works November 2023

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SECTION 01 11 00

SUMMARY OF WORK

PART 1 – GENERAL

1.1 WORK COVERED BY CONTRACT DOCUMENTS

A. The Work to be performed under this Contract shall consist of furnishing all labor, materials, tools, equipment, and incidentals and performing all work required in a complete and functioning manner including the following Work:

1. Install and maintain erosion and sediment control measures throughout the duration of the Work.

2. Lower reservoir elevation and maintain lowered elevation throughout the duration of the work.

3. Perform the necessary dewatering and/or temporary diversion for execution of the Work, while allowing baseflow to continue through the project and around the work area. Water diversion and construction sequencing shall be performed so that all Work can be performed in the dry.

4. Clear and grub and remove all trees, roots, and vegetation within the clearing limits indicated on the Construction Drawings.

5. Excavate and demolish existing trash rack and low level gate valve.

6. Construct low level gate valve, and safety features at existing riser top, and provide grading necessary to perform the work.

7. Reconstruct principal spillway plunge pool and re-grade surrounding area.

8. Re-grade right training dike at the auxiliary spillway.

9. Install access gate and monument on crest road on left side of dam.

10. Install and maintain traffic control throughout the duration of the Work.

11. Clean-up the project work area and return the area to its preconstruction conditions. Mill and resurface the HOA parking lot as indicated on the Construction Drawings.

12. Furnish and provide all other labor, materials, equipment, and other incidentals required to complete the Work as shown on the Drawings or otherwise specified in the Contract Documents.

B. The foregoing description(s) shall not be construed as a complete description of all work required.

1.2 SCHEDULING AND SEQUENCE OF WORK

A. Furnish, install and maintain erosion control measures.

B. Positive drainage for existing stormwater conveyance systems must remain in service throughout the duration of the Work. Provide dewatering or temporary diversion(s) as required.

C. Construct the Work as indicated on the Contract Drawings.

D. Once the Contractor has successfully completed construction, the Work is in service, and all disturbed areas have been restored, then the erosion control measures may be removed.

1.3 USE OF PREMISES

A. Confine operations at the site to areas permitted by law, ordinances, permits, and Contract Documents.

B. Do not unreasonably encumber premises with materials and equipment.

C. Maintain the premises in clean and safe conditions at all times.

D. Maintain access for emergency service personnel and school bus traffic at all times during construction.

Maintenance Project for Haynes Creek Site H-12 Outlet Works November 2023

01 11 00 - 2

E. If construction is going to block driveway access for residents, the Contractor shall notify the residents in advance to allow for removal of vehicles. The Contractor shall also maintain, on site, suitable steel plates for use in allowing vehicle access across open trenches and place plates as required allowing vehicular traffic to pass.

F. Provide access to GCDWR’s authorized persons and the police, fire, or other departments/agencies having legal jurisdiction to the site at all times and provide cooperation in their work.

1.4 COMMUNICATION

A. All formal communications shall be in writing. Use prescribed forms as required by GCDWR.

B. Designate in writing the individual who will be the Contractor’s authorized representative.

END OF SECTION 01 11 00

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SECTION 01 22 15

MEASUREMENT AND PAYMENT

PART 1 – GENERAL

1.1 SUMMARY

A. This section defines the measurement and payment for each Bid Item of Work listed on the Bid Form Worksheet to be performed under the Contract for the H-21 Dam…