Attachment_A_-_Final_Tomahawk_Specifications.pdf

PROJECT MANUAL

FOR

TOMAHAWK DAM

REHABILITATION

FOR

U.S. FISH & WILDLIFE SERVICE

TOMAHAWK NATIONAL WILDLIFE REFUGE

BARNES COUNTY, NORTH DAKOTA

MAY 2022

USFWS PROJECT NUMBER: 21-038

Tomahawk Dam Rehabilitation 00010-1 Table of Contents May 2022

TABLE OF CONTENTS

TOMAHAWK DAM REHABILITATION

SECTION TITLE PAGE

00010 TABLE OF CONTENTS 00010-1

DIVISION 1 - GENERAL REQUIREMENTS

01092 REFERENCES 01092-1

01110 SUMMARY OF WORK 01110-1

01120 WORK PLAN 01120-1

01200 MEASUREMENT AND PAYMENT 01200-1

01261 REQUESTS FOR CLARIFICATION 01261-1

01312 PROJECT MEETINGS 01312-1

01320 CONSTRUCTION PROGRESS DOCUMENTATION 01320-1

01330 SUBMITTAL PROCEDURES 01330-1

01410 REGULATORY REQUIREMENTS 01410-1

01450 QUALITY CONTROL 01450-1

01510 TEMPORARY UTILITIES 01510-1

01515 RESERVOIR CONTROL 01515-1

01530 CONSTRUCTION BARRIERS AND SIGNAGE 01530-1

01550 VEHICULAR ACCESS AND PARKING 01550-1

01570 TEMPORARY ENVIRONMENTAL CONTROLS 01570-1

01770 CONTRACT CLOSEOUT 01770-1

DIVISION 2 - SITE CONSTRUCTION

02222 DEMOLITION 02222-1

02230 SITE CLEARING 02230-1

02235 STRIPPING AND STOCKPILING OF SOIL 02235-1

02322 EXCAVATION 02322-1

02330 EARTHWORK 02330-1

02370 EROSION AND SEDIMENT CONTROL 02370-1

02680 CARE AND DIVERSION OF WATER 02680-1

02920 RECLAMATION 02920-1

DIVISION 3 - CONCRETE

03100 CONCRETE FORMSWORK 03100-1

03200 CONCRETE REINFORCEMENT 03200-1

03300 CAST-IN-PLACE CONCRETE 03300-1

03600 GROUT 03600-1

Tomahawk Dam Rehabilitation 00010-2 Table of Contents

DIVISION 5 - METALS

05500 METAL FABRICATIONS 05500-1

DIVISION 7 - THERMAL AND MOISTURE PROTECTION

07900 JOINT SEALERS 07900-1

DIVISION 11 – EQUIPMENT

11293 STOP LOGS AND GUIDES 11293-1

END OF CONTENTS

Tomahawk Dam Rehabilitation

DIVISION 1

GENERAL REQUIREMENTS

Tomahawk Dam Rehabilitation Project 01092-1 References

SECTION 01092

REFERENCES

PART 1 GENERAL

1.01 ABBREVIATIONS

A. Abbreviations that may be used throughout the Specifications and the organization or document represented are:

AA Aluminum Association AAMA Architectural Aluminum Manufacturer's Association AASHTO American Association of State and Highway Transportation Officials ACI American Concrete Institute AIA American Institute of Architects AIEE American Institute of Electrical Engineers AISC American Institute of Steel Construction AISI American Iron and Steel Institute AMA American Materials Association ANSI American National Standards Institute ASA American Standards Association (now USAS) ASCE American Society for Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials AWS American Welding Society AWWA American Water Works Association CFR Code of Federal Regulations CMP Corrugated Metal Pipe CO Contracting Officer COR Contracting Officer’s Representative CRSI Concrete Reinforcing Steel Institute CS Commercial Standards of U.S. Department of Standards CSI Construction Specifications Institute FAR Federal Acquisition Regulations FML Flexible Membrane Lining FS Federal Specifications GI Government Inspector HASP Health and Safety Plan IBC International Building Code NBC National Building Code NBS National Bureau of Standards NGVD National Geodetic Vertical Datum NPDES National Pollution Discharge Elimination System NRMCA National Ready Mix Concrete Association OSHA Occupational Safety and Health Administration, U.S. Department of

Labor PCA Portland Cement Association SPI Steel Products Institute SSPC Steel Structures Painting Council

Tomahawk Dam Rehabilitation Project 01092-2 References

UBC Uniform Building Code UL Underwriters Laboratories USACE U.S. Army Corps of Engineers USBR U.S. Bureau of Reclamation USFWS U.S. Fish & Wildlife Service

B. Additional abbreviations, if any, will be defined as they appear in the Specifications.

1.02 DEFINITIONS

A. Definitions used in these Specifications include:

1. Approved Drawings – the Construction Drawings that are stamped by Gannett

Fleming, Inc. and designated as “Approved for Construction”.

2. Contractor – the General Contractor, sub-contractors, manufacturer’s who are responsible for completing the Work specified herein and shown on the Approved Drawings.

3. Contracting Officer (CO) - the person authorized by the USFWS to award and administer this Contract. The CO shall make all final decisions concerning contractual matters and has sole authority to direct changes to, or make any binding agreements concerning, this Contract.

4. Contracting Officer’s Representative (COR) - the person authorized by the USFWS and appointed by the CO, to represent the CO for all technical matters that arise under this Contract. The limited authorities and responsibilities of this person are specifically delegated in writing by the CO.

5. Designer – Gannett Fleming, Inc.

6. District – Valley City Wetland Management District.

7. District Manager – the Station Manager or their designated staff.

8. Drawings – the approved Construction Drawings.

9. Engineer – the entity appointed by the CO to provide construction management support throughout the Project.

10. Government - the U.S. Fish & Wildlife Service (USFWS).

11. Government Inspector – shall be the on-site Government representative authorized by the USFWS and appointed by the CO to observe and document the Work performed under this contract to ensure that it conforms to the contract requirements. The authorities and responsibilities of this person are specifically delegated in writing by the CO. The Government Inspector may be an employee of the Engineer.

12. Limits or Work – as defined on the Approved Drawings. The Contractor is not allowed to have materials, labor, or equipment beyond the Limits of Work without prior written approval by the CO.

13. Neat Line – the dimensions shown on the Drawings of a line from a specified or labeled reference point. Payment for quantities such as concrete, excavation, earth fill, and other quantities shall be made to the Neat Line shown on the Drawings.

Work beyond the Neat Line or wasted materials outside of the Neat Line will not be paid for by the Government, unless authorized and approved by the CO.

14. Owner – the USFWS or the Government.

Tomahawk Dam Rehabilitation Project 01092-3 References

15. Project – the Tomahawk Dam Rehabilitation Project as defined on the Drawings, Specifications, and other related contract documents.

16. Work - The entire construction of the various separately identifiable parts thereof required to be provided under the Contract Documents. Work includes and is the result of performing or providing all labor, services, and documentation necessary to produce such construction, and furnishing, installing, and incorporating all materials and equipment into such construction, all as required by the Contract Documents.

B. Additional definitions, if any, will be defined as they appear in the Specifications.

1.03 REFERENCES

A. For products or workmanship specified by association, trade, or other consensus standards, comply with requirements of the most recent version of the standard, except when more rigid requirements are specified or are required by applicable codes or these Specifications.

PART 2 PRODUCTS NOT USED

PART 3 EXECUTION NOT USED

END OF SECTION

Tomahawk Dam Rehabilitation Project 01110-1 Summary of Work

SECTION 01110

SUMMARY OF WORK

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: General description of Project and location.

1.02 SITE LOCATION

A. Project location is Tomahawk Dam, located on the Tomahawk National Wildlife Refuge in Barnes County, North Dakota.

B. Exact location of Project is as indicated on "Location Map" and “Site Map” on the Cover Sheet of the Drawings.

1.03 WORK COVERED BY CONTRACT DOCUMENTS

A. Without intending to limit or restrict extent of work required under this Contract, Work to be performed comprises the following:

1. Demolition of existing uncontrolled concrete trapezoidal channel/service spillway.

2. Clearing and grubbing.

3. Stripping, excavation and fill placement incidental to construction of project features.

4. Construction of service spillway approach channel including all stripping and excavation.

5. Construction of new service spillway reinforced concrete labyrinth weir, slabs, training walls, and culvert.

6. Installation of stop log bay within the labyrinth weir of the new service spillway.

7. Modifications to the existing embankment including stripping, excavation, and fill placement.

8. Installation of guardrail along the roadway at the new spillway.

9. Installation of riprap armoring in downstream channel.

10. Diversion and care of water activities, including cofferdams and dewatering activities.

11. Installation, maintenance and removal of all temporary erosion and sediment control (E&SC) measures and temporary facilities.

12. Construction of gravel roadway across the dam crest.

13. Site restoration including placement of topsoil, seed, and mulching.

14. Provide without additional compensation any apparatus, material and labor not specifically mentioned in specifications or indicated on Drawings, that is necessary to complete or perfect any portion of work in a substantial manner and in compliance with requirements implied or intended in these Contract Documents. This includes all flow diversion measures, site dewatering measures, Tomahawk Dam Rehabilitation Project 01110-2 Summary of Work

E&SC activities, all materials testing, materials and devices or methods peculiar to the apparatus or system provided.

1.04 DRAWINGS

A. Project Drawings: The Drawings listed on the Cover Sheet of the set of Drawings accompanying this Project Manual are hereby made a part of the Contract.

1.05 CONSTRUCTION SEQUENCE

A. The following tasks shall be performed in the following suggested sequence. Execute construction activities not specifically described below in a sequence that will adequately protect the environment and work site and will result in project completion within the Contract Time.

1. Install E&SC measures and other measures intended to protect sensitive environmental resources.

2. Coordinate with the District to confirm dates and duration of reservoir draining, install temporary cofferdams and temporary piping to divert stream flow through or around active work areas.

3. Perform staged clearing, grubbing, stripping, excavation and demolition activities for construction of service spillway and embankment improvements.

4. Construct new reinforced concrete service spillway.

5. Place embankment fill, flatten the downstream and upstream embankment slopes and complete restoration of the top of dam.

6. Place riprap and bedding material to limits shown on the Drawings.

7. Remove temporary cofferdams.

8. Stabilize all areas disturbed by construction.

9. Remove E&SC and permanently stabilize all areas of disturbance.

1.06 MODIFICATIONS

A. Contracting Officer, Contracting Officer’s Representative, Engineer, or Government Inspector reserve right to make changes in order and execution of Work done under Contract as, in the opinion of the Contracting Officer, Contracting Officer’s Representative, Engineer, or Government Inspector, may be necessary or expedient to carry out intent of design and Contract. No increase in unit prices over Contract rates will be paid Contractor on account of such changes.

1.07 PROFILES AND TOPOGRAPHY

A. Profiles, topography, and details for the work are schematic in nature and, with the exception of dimensioned construction details, are presented only for the purpose of conveying the concept and extent of specified work. The Contractor shall verify all details in the field prior to ordering materials. The misuse of noted information for other than that indicated and subsequent suffering of damages as a result of misuse shall not be cause for any claim by the Contractor. Information is believed to be reasonably correct but is not guaranteed.

Tomahawk Dam Rehabilitation Project 01110-3 Summary of Work

1.08 PHYSICAL DATA

A. Become fully informed concerning location of public or private facilities and structures on, under, or over Project, which may interfere with operations. It is assumed Contractor has prepared his bid and entered into Contract with full understanding of conditions to be encountered, and responsibilities in connection with site conditions.

B. From investigations and field surveys, location of facilities and structures as have been brought to attention of the Designer are indicated on Drawings, but location of water, electric, gas, sewer, telephone lines, etc., and nature of materials is not guaranteed.

Indication or omission of such facilities on Drawings will not relieve Contractor of any responsibility to accommodate such features. Under no circumstances will Owner, Designer, Engineer, or Government Inspector be held responsible for any omission or failure to give notice to Contractor of any other facility or structure on, under, or over Project, or presence of rock or unsuitable material.

1.09 ADJACENT PROPERTY AND RIGHT-OF-WAY

A. Do not trespass, store material or equipment or in any other manner occupy any property outside of the construction limits shown on the Drawings, without written permission of the owner of the property. Any damage done by the Contractor to property outside of said work areas shall be restored immediately to the property owner's satisfaction at the Contractor's expense.

1.10 UTILITY OWNERS

A. Do not operate, move, relocate, or in any way interfere with the operation of existing utilities at, near, or outside the work area without first contacting a qualified representative of the utility involved and obtaining a written approval from this representative.

1.11 RESERVOIR OPERATIONS

A. See Section 02680, Care and Diversion of Water, for provisions related to the initial lowering and draining of the reservoir, maintaining the reservoir in a drained condition during construction and reservoir refilling.

Tomahawk Dam Rehabilitation Project 01120-1 References

SECTION 01120

CONTRACTORS WORK PLAN

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: The Contractors Work Plan.

1.02 SUBMITTALS

A. Submit in accordance with Section 01330: Submittals.

B. Prepare and submit a project-specific Work Plan for review and approval within 21 days after Award. Include the following topics in the Work Plan:

1. Construction Implementation Plan to include work approach, equipment to be used for each item of construction, methods, and management.

2. Key personnel names and qualifications, list of subcontractors, including an organizational chart and project directory with contact information.

3. Temporary Environmental Controls. See Section 01560: Temporary Environmental

Controls.

4. Waste Handling and Disposal Procedures. See Section 01575: Disposal of Waste

Materials.

5. Spill prevention and control procedures. See Section 01560: Temporary

Environmental Controls.

6. Construction sequence and schedule. See Section 01320: Construction Progress

Documentation.

7. Construction Quality Control Plan (CQCP). See Section 01450: Quality Control.

8. Other applicable items to describe work approach.

1.03 WORK PLAN REQUIREMENTS

A. The Work Plan shall be carefully thought out, prepared in accordance with all applicable Federal, state, and local laws and regulations, these specifications, and good engineering and construction practices. The Work Plan shall include a complete discussion of conformance with applicable laws, regulations, guidelines, and other applicable procedures, and shall be approved by the Engineer before beginning field activities.

B. A statement in the Work Plan that “all applicable laws will be followed” is not sufficient detail for the Work Plan submittal. Repetition of specification wording and requirements shall only be used to present the elements of the Work Plan, not as a substitute for the detail that is expected to present the Contractor’s work approach.

C. Develop the Work Plan in accordance with the requirements of the individual specifications indicated and the requirements in this Section.

Tomahawk Dam Rehabilitation Project 01120-2 References

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

NOT USED

Tomahawk Dam Rehabilitation Project 01200-1 Measurement and Payment

SECTION 01200

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: Description of measurement and payment requirements in addition to General Terms and Conditions.

1.02 MEASUREMENT

A. Measurement will be made on basis of completion of work in accordance with Contract Documents and as stated in following Article titled Item Descriptions.

B. Prices bid in the Bidder’s Proposal constitute complete payment for Work of the Contract, which Work is as specified in the Contract Documents, Drawings, and Specifications. Item descriptions contained in this Section are not to be considered as all encompassing.

1.03 PAYMENT

A. Payments will be made as stated in the Contract and Agreement, and at the Unit and/or Lump Sum Price(s) bid in the Bidder’s Proposal, and in accordance with General Terms and Conditions.

B. Incidental Costs: Include in appropriate Bid Items cost for:

1. Labor.

2. Equipment.

3. Materials.

4. Transportation.

5. Plant.

6. Tools.

7. Bonds and Insurance.

8. Worker's Compensation.

9. Licenses.

10. Permits.

11. Taxes.

12. General Overhead.

13. Profits.

14. All other expenses necessary for prosecution of the Work.

15. Tests: Incidental to the appropriate Bid Items.

16. Laboratory and Shop Tests.

17. Soil Tests.

18. Concrete Tests.

19. Material and Equipment Tests.

Tomahawk Dam Rehabilitation Project 01200-2 Measurement and Payment

1.04 VARIATIONS IN QUANTITIES

A. The quantity estimates for unit price items are approximate and are given solely to be used as a uniform basis for the comparison of bids. Contractor is specifically advised that the nature of portions of the Work included under this Contract is such that significant variations in actual quantities are possible for unit price items. Regardless of the magnitude of any decrease or increase from the estimated quantities, there will be no grounds for changes in Contract unit prices bid for the Work.

1.05 ITEM DESCRIPTIONS

A. General: Prices bid in Bidder’s Proposal constitute complete payment for Work of the Contract, which Work is as specified in the Contract Documents, Drawings, and Specifications.

1. Work and services of an administrative nature, and not referenced in

Measurement and Payment statements or in Item Descriptions, is considered incidental to entire Work and no separate or additional payment will be paid for such.

2. Bid Item Descriptions are not considered to be a comprehensive description of entire Work involved in the Items, the necessary appurtenance equipment, adjoining or attached structures and construction features, piping systems, and materials and construction operations not mentioned in the Bid Item Descriptions are considered incidental to the Items, and as such, must be included within the applicable Bid prices.

3. Separate payments will not be made under specific Bid Items for removing, placing, or installing materials that are included elsewhere in a Lump Sum Bid Item.

B. Bid Item 1, Mobilization and Demobilization:

1. Payment will be made at the Contract Lump Sum Price for Mobilization and

Demobilization. Includes all labor, plant, materials, tools and equipment costs that are required to satisfactorily furnish, install, operate, maintain, and remove the Contractor’s general plant and equipment, which includes but is not necessary limited to shops, storage and waste areas, sanitary facilities, primary power, back-up generators, temporary fencing, work associated with temporary access and haul roads, site access and maintenance of traffic, pre-construction inspections and video documentation, site restoration, and preparation and delivery of project record documents, other charges incidental and necessary for the Work not specified elsewhere, and all Incidental Costs described in Article 1.03.

2. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily furnish, install, operate, maintain, and remove the temporary field offices for the Contractor and Engineer, which includes but is not necessarily limited to furniture, equipment, and temporary utilities, as needed for the office operations, complete.

3. Payment, complete. Bid Item will be paid to Contractor in equal monthly payments.

Tomahawk Dam Rehabilitation Project 01200-3 Measurement and Payment

C. Bid Item 2, Bonds and Insurances: Payment will be made at the Contract Lump Sum Price for Bonds and Insurances. Includes all costs associated with obtaining all required bonds and insurances, complete. The entire values of the Contract Lump Sum Price for this Bid Item will be paid as part of the first partial payment.

D. Bid Item 3, Reservoir Control:

1. Payment will be made at the Contract Lump Sum Bid Price for Reservoir Control.

Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily perform the following Work, complete:

a. All labor, plant, materials, tools, and equipment costs required to design, submit, and amend the Reservoir Lowering Plan and to design, furnish, install, maintain, and remove all components of the approved Reservoir Lowering Plan in accordance with the Contract Drawings, Specifications and the approved Reservoir Control Plan.

b. Care, maintenance, and operation of all components of the approved Reservoir Lowering Plan in accordance with the Contract Drawings, Specifications and the approved Reservoir Control Plan not specifically measured for payment under a separate Bid Item.

c. Any other Work that may be required to perform Reservoir Lowering that is not specifically measured for payment under a separate Bid Item.

2. Item does not include:

a. Costs of erosion and sediment control features, which are paid for separately under Bid Item 5, Erosion and Sediment Control.

b. Diversion of water specifically identified under any other Unit or Lump Sum

Contract Price.

3. Payment of the Contract Lump Sum Price for Care and Diversion of Water will be prorated in approximately equal partial payments over the duration of the Project commencing with acceptance of the Reservoir Lowering Plan and ending with the Engineer's written recommendation of final payment in accordance with applicable provisions of the General Conditions.

E. Bid Item 4, Care and Diversion of Water:

1. Payment will be made at the Contract Lump Sum Bid Price for Care and Diversion of Water, complete:

a. All labor, plant, materials, tools, and equipment costs required to design, submit, and amend the Care and Diversion of Water Plan and to design, furnish, install, maintain, and remove all components of the approved Care and Diversion of Water features in accordance with the Contract Drawings, Specifications and the approved Care and Diversion of Water Plan.

b. Care, maintenance, and diversion of all stream flows, spring flows, discharges from the reservoir, and backwater from the downstream area in the Work area not specifically measured for payment under a separate Bid Item.

c. Temporary Cofferdams and Diversion Barriers:

Design, furnish, install, maintain and remove all temporary cofferdams and diversion barriers, and related temporary features that are not specifically measured for payment under a separate Bid Item. Includes removal and onsite spoil or offsite disposal of fill and other materials that

Tomahawk Dam Rehabilitation Project 01200-4 Measurement and Payment

Contractor may elect to import from offsite for construction of temporary cofferdams and diversion barriers.

Excavation, installation, removal and backfill of all temporary diversion piping culverts or channels and associated temporary supports that the Contractor may employ to control surface runoff, and temporary support, shoring, and berms.

d. Any other Work that may be required to perform Care and Diversion of Water that is not specifically measured for payment under a separate Bid Item.

2. Separate payment will not be made for designing, furnishing, installing, monitoring, operating, maintaining, and removing all temporary culverts, pipes, bulkheads, cofferdams, diversion barriers, pumps, staged diversion of water from all areas of open excavation, removal of excavated material or other obstructions from diversion channels, or any associated temporary flow diversion works, the entire cost of which is considered incidental to and included in the Lump Sum Price for Care and Diversion of Water, complete.

3. Item does not include:

a. Costs of erosion and sediment control features, which are paid for separately under Bid Item 5, Erosion and Sediment Control.

b. Costs of excavation or stripping associated with construction of the permanent works, which is paid for separately under Bid Item 8, Excavation.

c. Diversion of water specifically identified under any other Unit or Lump Sum

Contract Price.

4. Payment of the Contract Lump Sum Price for Care and Diversion of Water will be prorated in approximately equal partial payments over the duration of the diversion of water performance periods commencing with acceptance of the Contractor's Care and Diversion of Water Plan and ending with the Engineer's written recommendation of final payment in accordance with applicable provisions of the General Conditions.

F. Bid Item 5, Erosion and Sedimentation Control:

1. Payment will be made at the Contract lump sum price bid for this item. Includes all labor, plant, materials, tools and equipment costs to satisfactorily furnish, install, maintain, all Erosion and Sedimentation (E&S) Control facilities as well as costs to remove temporary E&S Control facilities, not paid for under a separate Bid Item.

Includes, but not necessarily limited to, mulching, dressing access roads with approved material, construction entrances, rock filters associated sediment removal equipment, soil stabilization matting, temporary seeding, soil supplements, maintenance of seeded areas, all other Erosion and Sedimentation Control measures required throughout construction.

2. Payment will be made at the Contract lump sum price bid for this item. Partial payments will be prorated in approximately equal partial payments over the duration of the period that commences with the installation of E&S controls in the field and ends with the Engineer’s written recommendation for final payment in accordance with the General Conditions.

Tomahawk Dam Rehabilitation Project 01200-5 Measurement and Payment

G. Bid Item 6, Clearing and Grubbing:

1. Payment will be made at the Contract Unit Price per Acre for Clearing and

Grubbing. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily perform Clearing and Grubbing within the Limit of Disturbance at the dam site, contractor staging and laydown areas, and all other Contract work areas, as approved by the Engineer and shown on the Drawings.

Includes, but is not necessarily limited to, felling of trees, cutting brush, stockpiling merchantable timber (as defined in the Contract Documents) onsite, removing and satisfactorily disposing of trees, brush, undergrowth, and debris, removing and satisfactorily disposing of stumps and root systems and backfilling of resulting holes and depressions when required, complete.

2. Clearing and Grubbing shall not be performed within the limits of any protected Jurisdictional Wetland areas that are not intended to be altered as shown on the Drawings.

H. Bid Item 7, Demolition and Removal of Existing Structures:

1. Payment will be made at the Contract Unit Price per Cubic Yard for Demolition and Removal of Existing Structures.

2. Includes all labor, plant, materials, tools, and equipment required to satisfactorily perform the following Work, complete:

a. Removal and disposal of reinforced concrete, non-reinforced concrete, and other materials in accordance with the Contract Drawings and Specifications, complete. Includes, not necessarily limited to, the existing service spillway.

I. Bid Item 8, Excavation:

1. Bid Item 8a, Topsoil Stripping and Stockpiling: Payment will be made at the

Contract Unit Price per Cubic Yard for Topsoil Stripping and Stockpiling. Includes all labor and equipment required to excavate, load, haul, and stockpile stripped topsoil material from all vegetated surfaces required within the work area, as specified, and designated as stripping on the Drawings, including the temporary stockpile / permanent spoil areas. Measurement for stripping and stockpiling shall be calculated based on the surveyed area that is stripped and stockpiled at the partial payment estimate cutoff date, and the applicable depth of stripping as shown on the Drawings.

2. Bid Item 8b, Unclassified Excavation: Payment will be made at the Contract Unit Price per Cubic Yard for Unclassified Excavation. Includes all required excavation below the limit of topsoil stripping. This includes, but is not limited to, excavation for the embankment modifications, construction of the service spillway, and construction of the service spillway approach channel. Includes loading, hauling, temporary stockpiling and spoiling excavated materials in permanent off-site spoil areas. Payment will be made for material excavated within the lines and grades shown on the Drawings. No allowance will be made for any material removed from outside the designated limits of excavation, unless additional excavation is specifically directed or approved by the Engineer in writing.

J. Bid Item 9, Earthwork: Each Bid Item below will include all labor, plant, materials, tools, and equipment costs that are required to satisfactorily perform material

Tomahawk Dam Rehabilitation Project 01200-6 Measurement and Payment identification, controlled selective excavation and separation of excavated materials, mechanical processing of excavated materials, processes necessary to break down oversized material, separation of dissimilar materials, processes to alter the moisture content, construction and maintenance of stockpiles of the respective Bid Items, whether from required excavations or from off-site sources, preparation of soil foundation surfaces to receive Bid Item materials, removal and disposal of excess materials to approved on-site locations, placing and spreading, moisture control, compaction, quality control including but not limited to advance testing, inspections, placement testing, records, and material control systems, corrective measures, rework and retesting, obtaining representative samples of respective Bid Item material for testing, compaction testing, and cleanup.

1. Bid Item 9a, Approved Fill: Payment will be made at the Contract Unit Price per Cubic Yard for Approved Fill. Includes all operations to furnish haul, place, compact, and maintain the Approved Fill material. No separate payment will be made for hauling, loading, or stockpiling Approved Fill materials. No separate payment will be made for the preparation of foundations and partially completed fill surfaces; the entire cost thereof shall be included in the Contract bid prices for the various items in the Bidder’s Proposal. Measurement of Approved Fill materials will be based on the computed volume placed between the excavation lines and grades and the fill lines and grades shown on the Drawings unless otherwise approved in writing by the Engineer. No payment will be made for additional fill due to over excavation unless over excavation was required by the Engineer and documented in writing. Approved Fill placed before the foundation surface is approved by the Engineer and surveyed will not be measured for payment.

2. Bid Item 9b, Fine Drainfill: Payment will be made at the Contract Unit Price per Cubic Yard for Fine Drainfill. Includes all operations to furnish haul, place, compact, and maintain the Fine Drainfill material. No separate payment will be made for hauling, loading, or stockpiling Fine Drainfill materials. No separate payment will be made for the preparation of foundations and partially completed fill surfaces; the entire cost thereof shall be included in the Contract bid prices for the various items in the Bidder’s Proposal. Measurement of Fine Drainfill materials will be based on the computed volume placed between the excavation lines and grades and the fill lines and grades shown on the Drawings unless otherwise approved in writing by the Engineer. No payment will be made for additional fill due to over excavation unless over excavation was required by the Engineer and documented in writing. Fine Drainfill placed before the foundation surface is approved by the Engineer and surveyed will not be measured for payment.

3. Bid Item 9c, Bedding Material: Payment will be made at the Contract Unit Price per Cubic Yard for Bedding Material. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily furnish, place, compact, and maintain Bedding Material to the lines and grades shown on the Drawings. Does not include Bedding Material placed under Bid Item 5, Erosion and Sediment. No separate payment will be made for removing oversized material, stockpiling of any materials, blending of any material, reloading or extra hauling of any stockpiled materials to their final position in the permanent work, preparation of foundations

Tomahawk Dam Rehabilitation Project 01200-7 Measurement and Payment and partial fill surfaces, nor for any other costs that may be required to furnish and install Bedding Material as specified, the entire cost thereof to be considered incidental to and included in the Contract Unit Price per Cubic Yard for this Bid Item.

4. Bid Item 9d, Riprap: Payment will be made at the Contract Unit Price per Cubic Yard for Riprap, irrespective of size designation, furnished and placed in accordance with the Drawings and Contract Documents. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily furnish, place, compact, and maintain the Riprap to the lines and grades shown the Drawings. Does not include any Riprap placed under Bid Item 5, Erosion and Sediment Control. No separate payment will be made for removing oversized material, stockpiling of any materials, blending of any material, reloading or extra hauling of any stockpiled materials to their final position in the permanent work, preparation of foundations and partial fill surfaces, nor for any other costs that may be required to furnish and install Riprap as specified, the entire cost thereof to be considered incidental to and included in the Contract Unit Price per Cubic Yard for this Bid Item.

5. Bid Item 9e, Geotextile: Payment will be made at the Contract Unit Price per Square Yard for Geotextile. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily furnish and place the Geotextile to the lines and grades shown the Drawings. Does not include any Geotextile placed under Bid Item 5, Erosion and Sediment Control.

K. Bid Item 10, Conventional Concrete:

1. Bid Item 10a, Structural Concrete Slabs: Payment will be made at the Contract

Unit Price per Cubic Yard for Structural Concrete Slabs. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily furnish, place, finish, cure, and test all cast-in-place, reinforced slab and footing concrete within the lines and grades shown on the Drawings. Includes any forming system components required to achieve satisfactory placement. Includes furnishing and installing all waterstops at concrete joints as indicated on the Drawings, complete.

Does not include reinforcing steel, which is paid for separately under Bid Item 13, Steel Reinforcement. Does not include wall concrete, which is paid for separately under Bid Item 12b, Structural Concrete Walls. Measurement for progress payments will be made based on the estimated percent of Work that is satisfactorily completed under this Bid Item at the partial payment estimate cutoff dates.

2. Bid Item 10b, Structural Concrete Walls: Payment will be made at the Contract Unit Price per Cubic Yard for Structural Concrete Walls. Includes all labor, plant, materials, tools, and equipment costs that are required to furnish, place, cure, and test all cast-in-place wall concrete within the lines and grades shown on the Drawings. Includes any forming system components required to achieve satisfactory placement. Includes furnishing and installing all waterstops at concrete joints as indicated on the Drawings, complete. Does not include reinforcing steel, which is paid for separately under Bid Item 13 Steel Reinforcement. Does not include slab and footing concrete, which is paid for separately under Bid Item 12a, Structural Concrete Slabs. Measurement for progress payments will be made based

Tomahawk Dam Rehabilitation Project 01200-8 Measurement and Payment on the estimated percent of Work that is satisfactorily completed under this Bid Item at the partial payment estimate cutoff dates.

L. Bid Item 11, Steel Reinforcement:

1. Payment will be made at the Contract Unit Price per Pound for Steel

Reinforcement. Includes all labor, plant, materials, tools, and equipment costs that are required to satisfactorily furnish and install Steel Reinforcement in cast-in-place concrete structures as shown on the Drawings and as required by the Specifications.

Rebar couplings, where required, will be considered incidental to the Work and will not be measured for payment. No payment will be made for Steel Reinforcement placed under another Bid Item that is measured for payment at separate Unit or Lump Sum Contract Prices, or steel that is placed as part of a forming system.

2. Measurement for progress payments will be made based on the estimated percent of Work that is satisfactorily completed under this Bid Item at the partial payment estimate cutoff dates.

M. Bid Item 12, Stop Log Bay:

1. Payment will be made at the Contract Lump Sum Price for Stop Log Bay. Includes all labor, plant, materials, tools, and equipment cost that are required to install and perform testing for the Stop Log Bay in the service spillway weir as shown on the Drawings and described in the Contract Documents.

2. Measurement for progress payments will be made based on the estimated percent of Work that is satisfactorily completed under this Bid Item at the partial payment estimate cutoff dates.

N. Bid Item 13, Gravel Access Road:

1. Payment will be made at the Contract Lump Sum Price for Gravel Access Road.

Includes all labor, plant, materials, tools, and equipment cost that are required to install the Gravel Access Road at the top of dam as shown on the Drawings and described in the Contract Documents.

2. Does not include stripping of topsoil, which is paid for under Bid Item 8a, Stripping and Stockpiling of Topsoil.

3. Measurement for progress payments will be made based on the estimated percent of Work that is satisfactorily completed under this Bid Item at the partial payment estimate cutoff dates.

O. Bid Item 14, Reclamation:

1. Payment will be made at the Contract Unit Price per Acre for Permanent Seeding and Mulching. Includes all labor, plant, materials, tools, and equipment costs required to satisfactorily furnish and place grass seed, mulch and soil supplements and protect, water and maintain the seeded areas until a permanent, complete and healthy stand of grass is obtained, complete. Temporary seeding is not included under this item and is paid separately under Bid Item 5 – Erosion and Sediment Control.

2. Measurement for seeding will be based on acres of seeding placed within areas requiring permanent restoration when disturbance is completed, measured on a 2- Dimensional (horizontal) surface.

Tomahawk Dam Rehabilitation Project 01200-9 Measurement and Payment

P. Bid Item 15, Guardrail:

1. Payment will be made at the Contract Lump Sum Price for Guardrail. Includes all labor, plant, materials, tools, and equipment costs required to furnish and install Guardrail as shown on the Drawings, described in the Contract Documents, and as detailed in the referenced/applicable North Dakota Department of Transportation literature/standards.

2. Payment will be made based on the estimated percent of the Work that is satisfactorily completed under this Bid Item at the partial payment estimate cutoff dates.

PART 2 PRODUCTS

NOT USED

Tomahawk Dam Rehabilitation Project 01261-1 Requests For Clarification

SECTION 01261

REQUESTS FOR CLARIFICATION

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: General procedures for Contractors’ Requests for Clarification (RFC’s) during the construction phase of the project.

1.02 DEFINITIONS

A. Request for Clarification (RFC): A written question related to the meaning or intent of the construction documents submitted to the Contracting Officer’s Representative, the Government Inspector, and the Engineer during construction that may result in a change order.

1.03 HANDLING OF RFC’S DURING CONSTRUCTION

A. The Contractor shall submit RFC’s electronically to the Contracting Officer’s Representative, the Government Inspector, and the Engineer. An approved electronic, web-based collaborative project management system may be used to process and organize the RFC’s.

B. The Contracting Officer’s Representative, the Government Inspector, and the Engineer will provide timely review of the RFC. The Contracting Officer’s Representative shall provide the final response of the RFC to the Contractor. Allow sufficient time for review and response.

Tomahawk Dam Rehabilitation Project 01312-1 Project Meetings

SECTION 01312

PROJECT MEETINGS

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: General requirements for scheduling and attending project meetings.

1.02 PRECONSTRUCTION MEETING

A. The Contractor is required to participate in an onsite pre-construction meeting prior to the commencement of any Work onsite, with representatives of the District, the Contracting Officer, the Contracting Officer’s Representative, the Engineer, and the Government Inspector. At a minimum, in attendance from the Contractor shall be the Contractor’s Project Manager, Site Superintendent, Site Safety Officer, and key subcontractor personnel.

B. Prior to the pre-construction meeting, the Contractor shall submit the following to the Contracting Officer:

1. Preliminary Progress Schedule.

2. Procurement schedule.

3. Shop Drawings and other submittals schedule.

4. Schedule of Values

5. Preliminary QC Plan

C. At the pre-construction meeting, the Contractor shall develop and thoroughly explain their construction schedule; safety programs; construction management procedures;

and construction layout plan for staging, stockpiling, and other key construction activities. Project communication protocol between the Contractor, the Contracting Officer, the Contracting Officer’s Representative, the District, the Engineer, and the Government Inspector shall be established at the pre-construction meeting.

1.03 PROGRESS MEETINGS

A. The Contractor is required to participate in weekly progress meetings with the Contracting Officer, Contracting Officer’s Representative, the District, the Engineer, and the Government Inspector, which may be held by teleconference or on-site at the request of the Contracting Officer or Contracting Officer’s Representative.

B. The purpose of the progress meetings is to discuss Work progress, maintain coordination of efforts, discuss changes in schedule, and resolve other problems that may develop. The Contractor shall also review the latest three week look-ahead schedule and present all conflicts, discrepancies, and other construction challenges for resolution. Prior to each progress meeting, the Contractor shall provide an agenda for the meeting and an updated detailed Work schedule for the next three-weeks.

Tomahawk Dam Rehabilitation Project 01312-2 Project Meetings

C. Additional meetings may be called by the Contracting Officer or Contracting Officer’s Representative during any stage of the project when it is deemed necessary. There will be no additional cost to the Government for more frequent meetings.

D. The Government Inspector will prepare documentation of progress meeting minutes and distribute copies to all attending the meetings.

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

Tomahawk Dam Rehabilitation Project 01320-1 Construction Progress

SECTION 01320

CONSTRUCTION PROGRESS DOCUMENTATION

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: General requirements for construction schedule and reporting progress.

1.02 SCHEDULE SUBMITTALS

A. The Contractor shall submit a Project Construction Schedule in accordance with Section 01330: Submittal Procedures. The construction schedule shall be provided in a Gantt chart format and shall clearly illustrate the Contractor’s Work Breakdown Structure for the Project, and key schedule dependencies of all required Work tasks and subtasks. The schedule shall clearly illustrate the critical path of the Work and scheduled start dates, finish dates, and float time for all tasks and subtasks. The Project Construction Schedule shall be submitted in a portable document format (PDF) with color print to enhance its legibility if applicable.

B. The Contractor shall submit an updated, three-week, look-ahead Project Schedule as part of the agenda for the Progress Meetings described in Section 01312: Project Meetings.

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.01 WORK SEQUENCE

A. With the exception of the key Work task sequencing required below, the Contractor shall develop the sequence of Work task and document this sequence in the construction schedule as described in Paragraphs 1.02A and 1.02B of this Specification Section.

1. All sediment and erosion control features shall be installed prior to disturbance at the Site.

2. The Government will issue the Notice-to-Proceed as soon as possible to allow for

Work related to mobilization, staging and stockpile areas, and initial submittals to ensure the project schedule can be complete on time.

3. Any reservoir control must be installed before Work can begin.

4. The Contractor shall obtain permission from the Contracting Officer before removing any temporary reservoir control systems.

Tomahawk Dam Rehabilitation Project 01330-1 Submittal Procedures

SECTION 01330

SUBMITTAL PROCEDURES

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: General procedures and requirements for submittals.

1.02 DEFINITIONS

A. Work related submittals of this Section are categorized for convenience as follows:

1. Product Data: Product Data include standard printed information on materials, products, and systems not specifically prepared for the Work, other than designation of selections from among available choices printed therein.

2. Shop Drawings: Shop Drawings include Contractor or manufacturer prepared technical data for the Work, including drawings, diagrams, performance curves, data sheets, schedules, templates, patterns, reports, calculations, instructions, measurements, and similar information not in standard printed form for general application to other contracts.

3. Samples: Samples include both fabricated and unfabricated physical examples of materials, products, and units of Work; both as complete units and as smaller portions of units of Work, either for limited visual inspection or, where indicated, for more detailed testing and analysis.

4. Certificates: Contractor or manufacturer prepared written instruments certifying product compliance with the Project Manual and Drawings.

5. Miscellaneous Submittals: Miscellaneous Submittals related directly to the Work include construction permits, project photographs, survey data and reports, physical Work records, quality testing and certifying reports, copies of industry standards, Record Drawings, field measurement data; and similar information, devices and materials applicable to the Work and not processed as Product Data, Shop Drawings, Samples, or Certificates.

6. Days: Days shall be calendar days.

1.03 REVIEW AND PROCESSING OF SUBMITTALS

A. Refer to FAR 52.236-5 Materials and Workmanship, and Specifications and Drawings for Construction.

B. Do not order, use, or install any item specified as requiring a submittal prior to approval. The Contractor is solely responsible for any item that has been ordered/delivered prior to submittal approval.

C. Submittals shall be electronically transmitted to the Contracting Officers Representative, the Government Inspector, and the Engineer. Samples shall be delivered by mail or courier to the COR Contracting Officers Representative and the Government Inspector.

Tomahawk Dam Rehabilitation Project 01330-2 Submittal Procedures

D. Each submittal shall be transmitted with the Transmittal of Shop Drawings, Product Data, Samples, Certificates, or Miscellaneous Submittals form included at the end of this specification section.

E. The Contractor shall allow a minimum of 14 days, or as otherwise shown in Table 1 for the Government’s review of each required submittal or re-submittal.

F. After review, submittals will be returned by the COR marked as follows: Approved;

Approved as Noted; Revise and Resubmit; or Rejected.

1. Approved: When submittals are returned Approved, it is understood that they have been found to be in conformance with the Contract Documents. The COR's approval of the submittals does not relieve the Contractor from responsibility for errors or discrepancies in such submittals.

2. Approved as Noted: When submittals are returned Approved as Noted, it is understood that the submittals have been found to be in conformance with the Contract Documents, provided the changes noted by the COR are incorporated.

Submittals returned Approved as Noted will not require resubmission.

3. Revise and Resubmit: When submittals are returned noted Revise and Resubmit, it is understood that the Contractor shall make the required corrections and resubmit corrected submittals to COR, Government Inspector, and Engineer. No fabrication is allowed.

4. Receipt Acknowledged: When submittals are returned Receipt Acknowledged, it is understood that the submittals have been received for inclusion in the construction documentation.

G. A list of required submittals is listed in Table 1 of this Section. This listing in Table 1 is not necessarily inclusive of all required submittals.