Attachment_6_-_Final_Specifications.pdf

CHESAPEAKE & OHIO CANAL NATIONAL HISTORICAL

PARK

MARYLAND

LEVEL 33 WALL FINAL DOCUMENTS

CHOH

PMIS NO. 245005

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

NATIONAL CAPITAL AREA – REGION 1

04/22/2022

DIVISION 00

00 01 07

- PROCUREMENT AND CONTRACTING REQUIREMENTS

SEALS PAGE

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00

01 27 00

01 32 16

01 32 33

01 33 00

01 35 91

01 40 00

01 50 00

01 57 23

01 70 00

SUMMARY OF WORK

DEFINITION OF CONTRACT LINE ITEMS

CONSTRUCTION SCHEDULE

PHOTO DOCUMENTATION

SUBMITTALS

HISTORIC PRESERVATION TREATMENT PROCEDURES

QUALITY REQUIREMENTS

TEMPORARY SERVICES, FACILITIES AND CONTROLS

TEMPORARY STORMWATER POLLUTION PREVENTION

EXECUTION AND CLOSEOUT REQUIREMENTS

DIVISION 02 - EXISTING CONDITIONS – NOT USED

DIVISION 03 - CONCRETE

03 10 00

03 30 00

03 70 00

CONCRETE FORMING AND ACCESSORIES

CAST-IN-PLACE CONCRETE

MASS CONCRETE FILL

DIVISION 04 - MASONRY

04 03 07 STONE MASONRY

DIVISION 05 - METALS – NOT USED

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES – NOT USED

DIVISION 07 - THERMAL AND MOISTURE PROTECTION – NOT USED

DIVISION 08 - OPENINGS – NOT USED

DIVISION 09 - FINISHES – NOT USED

DIVISION 10 - SPECIALTIES – NOT USED

Division Section Title

DIVISION 11 - EQUIPMENT – NOT USED

DIVISION 12 - FURNISHINGS – NOT USED

DIVISION 13 - SPECIAL CONSTRUCTION – NOT USED

DIVISION 14 - CONVEYING EQUIPMENT – NOT USED

DIVISION 21 - FIRE SUPPRESSION – NOT USED

DIVISION 22 - PLUMBING – NOT USED

DIVISION 23 - HEATING VENTILATING AND AIR CONDITIONING (HVAC) – NOT USED

DIVISION 24 - RESERVED – NOT USED

DIVISION 25 - INTEGRATED AUTOMATION – NOT USED

DIVISION 26 - ELECTRICAL – NOT USED

DIVISION 27 - COMMUNICATIONS – NOT USED

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY – NOT USED

DIVISION 31 - EARTHWORK

31 10 00 SITE CLEARING

31 20 00

31 23 19

31 25 00

EARTH MOVING

DEWATERING

EROSION AND SEDIMENT CONTROL

31 50 00 EXCAVATION SUPORT AND PROTECTION

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 11 00

32 12 15

32 17 23

32 92 20

BASE COURSES

ASPHALT PAVING

PAVEMENT MARKINGS

SEEDING AND TOPSOIL

DIVISION 33 - UTILITIES – NOT USED

DIVISION 34

34 71 13

- TRANSPORTATION

VEHICLE BARRIERS

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION – NOT USED

PROCESS INTERCONNECTIONS – NOT USED

MATERIAL PROCESSING AND HANDLING EQUIPMENT – NOT USED

PROCESS HEATING, COOLING, AND DRYING EQUIPMENT – NOT USED

PROCESS GAS AND LIQUID HANDLING, PURIFICATION AND STORAGE

EQUIPMENT – NOT USED

POLLUTION CONTROL EQUIPMENT – NOT USED

INDUSTRY-SPECIFIC MANUFACTURING EQUIPMENT – NOT USED

WATER AND WASTE WATER TREATMENT – NOT USED

END OF TABLE OF CONTENTS

DIVISION 40

DIVISION 41

DIVISION 42

DIVISION 43

DIVISION 44

DIVISION 45 -

DIVISION 46 -

DOCUMENT 00 01 07 - SEALS PAGE

1.1 DESIGN PROFESSIONALS OF RECORD

A. Architect:

1. Quinn Evans Architects, Inc.

2. Thomas C. Jester, AIA; DC License No. 200390.

3. Responsible for Divisions 01-49 Sections except where indicated as prepared by other design professionals of record.

B. Civil Engineer and Landscape Architect:

1. Vanasse Hangen Brustlin, Inc.

2. James R. Long, PE; MD License No. 16039

3. Responsible for Divisions 31-33.

C. Structural Engineer:

1. McMullan Consulting Engineers

2. Doug Bond, PE, SI, CGC, PhD; TN License No. 32719

3. Responsible for Sections 03 30 00 "Cast-In-Place Concrete" and 04 22 00 "Concrete Unit Masonry."

END OF DOCUMENT 00 01 07

REVETMENT WALLS AT LEVEL 33 (FINAL DOCUMENTS) 00 01 07 - 1

CHOH – 245005 SEALS PAGE

REVETMENT WALLS AT LEVEL 33 (FINAL DOCUMENTS)

CHOH – 245005

01 11 00 - 1

SUMMARY OF WORK

SECTION 01 11 00 – SUMMARY OF WORK

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, and other Division 01 Specification Sections, apply to this Section.

1.2 DESCRIPTION: This section covers the following:

A. Location and Description of Work B. Coordination

C. Project Meetings

D. Construction Facilities and Temporary Controls

E. Materials and Equipment

F. Quality Requirements

G. Accident Prevention H. Archeological Protection

I. Permits and Responsibilities

1.3 LOCATION AND DESCRIPTION OF WORK

A. The work of this contract is located at Chesapeake & Ohio Canal National Historical Park, near 613-

699 Harpers Ferry Rd, Knoxville, MD 21758

B. The work of this contract includes, but not limited to the following work, as detailed in the specification sections and as shown on the attached drawings:

Repair of the revetment walls of Level 33 of the C&O Canal. This project will reconstruct a failing section of dry-laid stone wall. The wall retains earth below a public road and is located on the bermside of the canal. At the major segment of interest, this project will temporarily brace, dismantle, and rebuild the stone wall to restore its structural integrity. Demolition and restoration of the existing roadway with appurtenant traffic control measures is included in the work. The wall is to be dismantled and reconstructed in phases to allow the roadway to open for emergency vehicles for much of the project duration. A few isolated areas of the wall outside the major segment of interest will be stabilized without full wall reconstruction. The canal prism will be used as a staging area, it will be restored at the conclusion of the project. The dry laid stone wall in question is approximately 150’ long and 16’ – 23’ high. Failure of the wall would have a direct negative impact on Harper’s Ferry

Road. Harper’s Ferry Road is a county road located on and surrounded by NPS property.

This 1.7-mile segment of road is relied upon by the local community for access to residential and emergency service

1.4 COORDINATION

A. Coordinate construction operations included in various sections of these specifications to assure efficient and orderly installation of each part of the work. Coordinate construction operations included under different sections that depend on each other for proper installation, connection, and operation.

1. Schedule construction operations in the sequence required to obtain the best results where installation of one part of the work depends on installation of other components, before or after its own installation.

01 11 00 - 2

2. Coordinate installation of different components to assure maximum accessibility for required maintenance, service, and repair.

3. Make provisions to accommodate items scheduled for later installation.

B. Administrative Procedures: Coordinate scheduling and timing of required administrative procedures with other construction activities to avoid conflicts and assure orderly progress of the work. Such administrative activities include, but are not limited to, the following:

1. Preparation of contractor’s construction schedule.

2. Installation and removal of temporary facilities.

3. Progress meetings.

4. Project closeout activities.

1.5 PROJECT MEETINGS

A. General: Contracting Officer’s Representative (COR) will schedule and conduct meetings and conferences at project site, unless otherwise indicated.

1. Attendees: Authorized representatives of Acquisition Division and park staff; Contractor and its superintendent; major subcontractors; manufacturers; suppliers; and other concerned parties shall attend the conference shall be familiar with project and authorized to conclude matters relating to work.

B. Pre-Construction Conference: Contracting Officer’s Representative will schedule a Pre-

Construction Conference before starting construction, at a time convenient to park staff and contractor. The conference will be held at project site or another convenient location.

1. Agenda: Subjects to be discussed will include the following:

a. Correspondence – General Procedure.

b. Contracting Officer’s Authorized Representatives.

c. Changes.

d. Submittals for Approval (General).

e. Submittals for Approval (Shop Drawings and Samples).

f. Subcontractors.

g. Labor Standards.

h. Payroll Reports.

i. Working Hours

j. Plans and Specifications.

k. Accident Prevention.

l. Park Rules and Regulations.

m. Contractor Parking and Personnel Passes

n. Payments to Contractor.

o. Liquidated Damages – Construction.

p. Tentative Construction Schedule.

C. Pre-Installation Conferences: A pre-installation conference at the project site before each construction activity that requires coordination with other construction is required. A preparation meeting will be conducted to discuss the notable features of the work such as stone masonry, concrete mass fill, cast-in-place concrete, demolition, roadway restoration and earthwork. This preparation meeting is required.

01 11 00 - 3

D. Progress Meetings: If necessary, the Contracting Officer’s Representative will schedule and conduct progress meetings at designated intervals. Coordinate dates of meetings with preparation of payment requests.

1.6 CONSTRUCTION FACILITIES AND TEMPORARY CONTROLS (See Section 01 50 00)

A. References:

1. FAR Clause: 52.236-9 – Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements

2. FAR Clause: 52.236-10 – Operations and Storage Areas

3. FAR Clause: 52.236-14 – Availability and Use of Utility Services

1.7 MATERIALS AND EQUIPMENT

A. Reference: FAR Clause: 52.236-5 – Material and Workmanship

1.8 QUALITY REQUIREMENTS

A. Contractor shall be responsible for all work to comply with the latest edition of the International

Building Code (IBC) and family of International Codes including but not limited to: International

Plumbing Code, International Electrical Code and International Mechanical Code. Work shall conform to the Life Safety Code.

B. Testing and inspecting services may be required to verify compliance with requirements specified or indicated. These services do not relieve the Contractor of responsibility for compliance with the

Contract requirements.

1. Specific quality-control requirements for individual construction activities as specified in the

Sections may also cover production of standard products.

2. Requirements for Contractor to provide quality-control services as directed by Contracting

Officer’s Representative or authorities having jurisdictions are not limited by provisions of this

Section.

C. Submittals (See Section 013300 Submittals for detailed requirements)

1. Qualification Data: For testing agencies specified in “Quality Assurance” Article to demonstrate their capabilities and experience. Include proof of qualifications in the form of a recent report on the inspection of the testing agency by a recognized authority.

2. Delegated-Design Submittal: In addition to Shop Drawings, Product Data, and other required submittals, submit a statement, signed and sealed by the responsible design professional, for each product and system specifically assigned to Contractor to be designed or certified by a design professional, confirming that the products and systems are in compliance with performance and design criteria indicated. Include list of codes, loads, and other factors used in performing these services.

D. Quality Assurance

1. Fabricator Qualification: A firm experienced in producing products similar to those indicated for this Project and with a record of successful in-service performance, as well as sufficient production capability to produce required units.

2. Factory-Authorized Service Representative Qualifications: An authorized representative of manufacturer who is trained and approved manufacturer to inspect installation of

01 11 00 - 4 manufacturer’s products that are similar in material, design, and extent to those indicated for this Project.

3. Installer Qualifications: A firm or individual experienced in installing, erecting, or assembling work similar in material, design, and extent to that indicated for this Project, whose work has resulted in construction with a record of successful in-service performance.

4. Manufacturer Qualifications: A firm experienced in manufacturing products or systems similar to those indicated for this Project and with a record of successful in-service performance.

5. Professional Engineer Qualifications: A professional engineer who is legally qualified to practice in jurisdiction where Project is located and who is experienced in providing engineering services of the kind indicated. Engineering services are defined as those performed for installations of the system, assembly, or products that are similar to those indicated for this Project in material design, and extent.

6. Specialists: Certain sections of the Specifications require that specific construction activities shall be performed by entities that are recognized experts in those operations. Specialists shall satisfy qualification requirements indicated and shall be engaged for the activities indicated.

a. Requirement for specialists shall not supersede building codes and similar regulations governing the Work, nor interfere with local trade-union jurisdictional settlements and similar conventions.

7. Testing Agency Qualifications: An agency with the experience and capability to conduct testing and inspecting indicated, as documented by ASTM E 548, and that specializes in types of tests and inspections to be performed.

8. Pre-construction Testing: Testing agency shall perform pre-construction testing for compliance with specified requirements for performance and test methods.

a. Contractor responsibilities include the following:

1. Provide test specimens and assemblies representative of proposed materials and construction. Provide sizes and configurations of assemblies to adequately demonstrate capability of product to comply with performance requirements.

2. Submit specimens in a timely manner with sufficient time for testing and analyzing results to prevent delaying work.

b. Testing Agency Responsibilities: Submit a certified written report of each test, inspection, and similar quality-assurance service to Contracting Officer’s

Representative, with copy to Contractor. Interpret tests and inspections and state in each report whether tested and inspected work complies with or deviates from the

Contract Documents.

E. Quality Control

1. Contractor Responsibilities: Unless otherwise indicated, provide quality-control services specified and required by these contract documents.

a. Contractor shall provide a qualified project manager or superintendent on site during active daily construction activities.

b. Contractor shall engage a qualified-independent testing agency to perform these quality-control services.

01 11 00 - 5

c. Contractor must maintain a set of contract plans and specifications on the job-site at all times during the contract period. Contractor shall provide copies of the contract plans and specifications to all sub-contractors.

2. Manufacturer’s Field Services: Where indicated, engage a factory authorized service representative to inspect field-assembled components and equipment installation, including service connections. Report results in writing.

3. Testing Agency Responsibilities: Cooperate with Contracting Officer’s Representative and

Contractor in performance of duties. Provide qualified personnel to perform required tests and inspections.

a. Notify Contracting Officer’s Representative and Contractor promptly of irregularities or deficiencies observed in the Work during performance of its services.

b. Interpret tests and inspections and state in each report whether tested and inspected work complies with or deviates from requirements.

c. Submit a certified written report, in duplicate, of each test, inspections, and similar quality-control service through Contractor.

d. Do not release, revoke, alter, or increase requirements of the Contract Documents or approve or accept any portion of the work.

4. Coordination: Coordinate sequence of activities to accommodate required quality-assurance and quality-control services with a minimum of delay and to avoid necessity of removing and replacing construction of accommodate testing and inspecting.

1.9 ACCIDENT PREVENTION

A. FAR Clause: 52.236-13– Accident Prevention

(a) The Contractor shall provide and maintain work environments and procedures which will—

(1) Safeguard the public and Government personnel, property, materials, supplies, and equipment exposed to Contractor operations and activities;

(2) Avoid interruptions of Government operations and delays in project completion dates; and

(3) Control costs in the performance of this contract.

(b) For these purposes on contracts for construction or dismantling, demolition, or removal of improvements, the Contractor shall—

(1) Provide appropriate safety barricades, signs, and signal lights;

(2) Comply with the standards issued by the Secretary of Labor at 29 CFR Part 1926 and 29 CFR

Part 1910; and

(3) Ensure that any additional measures the Contracting Officer determines to be reasonably necessary for the purposes are taken.

(c) If this contract is for construction or dismantling, demolition or removal of improvements with any Department of Defense agency or component, the Contractor shall comply with all pertinent provisions of the latest version of U.S. Army Corps of Engineers Safety and Health Requirements

Manual, EM 385-1-1, in effect on the date of the solicitation.

(d) Whenever the Contracting Officer becomes aware of any noncompliance with these requirements or any condition which poses a serious or imminent danger to the health or safety of the public or Government personnel, the Contracting Officer shall notify the Contractor orally, with written confirmation, and request immediate initiation of corrective action. This notice, when delivered to the Contractor or the Contractor’s representative at the work site, shall be deemed sufficient notice of the noncompliance and that corrective action is required. After receiving the notice, the Contractor shall immediately take corrective action. If the Contractor fails or refuses to

01 11 00 - 6 promptly take corrective action, the Contracting Officer may issue an order stopping all or part of the work until satisfactory corrective action has been taken. The Contractor shall not be entitled to any equitable adjustment of the contract price or extension of the performance schedule on any stop work order issued under this clause.

(e) The Contractor shall insert this clause, including this paragraph (e), with appropriate changes in the designation of the parties, in subcontracts.

Alternate I (Nov 1991). If the contract will involve (a) work of a long duration or hazardous nature, or (b) performance on a Government facility that on the advice of technical representatives involves hazardous materials or operations that might endanger the safety of the public and/or Government personnel or property, add the following paragraph (f) to the basic clause:

(f) Before commencing the work, the Contractor shall—

(1) Submit a written proposed plan for implementing this clause. The plan shall include an analysis of the significant hazards to life, limb, and property inherent in contract work performance and a plan for controlling these hazards; and

(2) Meet with representatives of the Contracting Officer to discuss and develop a mutual understanding relative to administration of the overall safety program.

B. Submit Accident Prevention Plan if required by CO or COR.

C. All work shall be in accordance with standard Occupational Safety and Health Administration

(OSHA) guidelines and regulations.

1.10 ARCHEOLOGICAL PROTECTION

A. Reference: DOI Clause: 1489.236-73 – Archeological Findings

1. Archeological Discovery: In the event that unanticipated archeological resources are uncovered during construction operations, the contractor will suspend operations at the discovery site, notify the Contracting Officer, who shall contact the Park Archeologist or his representative, and continue operations in other areas, until such time as the National Park Service has completed its compliance responsibilities under Section 106 of the 1966 National Historic

Preservation Act, as amended.

2. Unanticipated Discovery of Human Remains (Anthropic Discovery): Should any human remains be encountered, excavations will stop and the Contracting Officer will be notified immediately. DO NOT TOUCH, LEAVE THE REMAINS IN PLACE. The Contracting

Officer, in consultation with the Park Archeologist or his representative, and the Park

Superintendent shall determine the appropriate course of action, following the Department of the Interior’s guidelines on the treatment of human remains and appropriate Federal legislation.

1.11 PERMITS AND RESPONSIBILITIES

A. As prescribed in FAR 36.507: Permits and Responsibilities (Nov 1991): The Contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses and permits, and for complying with any Federal, State, and municipal laws, codes, and regulations applicable to the performance of the work. The Contractor shall also be responsible for all damages to persons or property that occur as a result of the Contractor’s fault or negligence.

The Contractor shall also be responsible for all materials delivered and work performed until completion and acceptance of the entire work, except for any completed unit of work which may have been accepted under the contract.

01 11 00 - 7

B. Permits, Licenses, and Certificates: It is the contractor’s responsibility to obtain and pay for all permits, licenses, certifications, inspection reports, releases, jurisdictional settlements, notices, receipts for fee payments, judgments, correspondence, records, and similar documents, established for compliance with standards and regulations bearing on performance of the Work. The

Contractor shall be responsible for renewal of all required construction permits during the performance period of the contract. Submit all copies for the Contracting Officer’s

Representative’s records.

C. For the purpose of this contract, the Contractor will not be considered an agent of the Government.

Therefore, the Contractor will comply with the appropriate Federal, State, and local laws.

D. Potential Permits: The permits listed below were identified during the design process as likely to be required based on typical means and methods of construction. The list is provided to assist the contractor in determining which permits will be required for the contract’s chosen means and methods. The list shall not be considered complete, as it is the responsibility of the contractor to determine means and methods and obtain the required permits. It is the responsibility of the

Contractor to obtain all permits required to legally conduct the work. It’s also the responsibility of the Contractor to renew all required construction permits from all agencies with jurisdiction for the duration of the project.

1. Construction trailer, Utilities hookup permit – Coordinate electrical hookups with Potomac

Edison. Construction trailers must be self-contained.

2. Harpers Ferry Road Closure & Temporary Traffic Control (TTC) Plan – Contractor shall develop temporary traffic control plan for submittal to NPS and Washington County Department of

Public Works – Contact is Andrew Eshlemen, Director – 240–313-2252 and aeshleman@washco-md.net . Electronic PDF of previously approved Traffic Control Plan for slope stabilization project on Harpers Ferry Road downstream of the current work area in 2021 can be provided by NPS to the contractor for reference upon request. Upon approval of TTC plan, contractor shall be responsible for providing, installing, and maintaining signage and traffic control devices throughout the length of the project. Upon project completion (and after roadway has been restored), temporary signage and temporary traffic control devices will be removed.

Temporary Traffic Control (TTC) Plan shall adhere to the Maryland Manual on Uniform Traffic

Control Devices – 2011 Edition and the Maryland Book of Standards for Highway & Incidental

Structures. TTC plan should account for different phases of work identified in Sheet S3.0 and specific work tasks developed by the contractor as part of their means and methods of performing the work.

3. Stormwater Pollution Prevention Permit – General Permit for Stormwater Associated with construction Activity - Notice of Intent & Associated Fees – Maryland Department of the

Environment (MDE).

4. Water Appropriation Permit – If pumping of water from the Potomac River is desired by the

Contractor – Coordination with Maryland Department of the Environment Compliance

Inspector will be required. Application to appropriate and use waters of the state is responsibility of the contractor to acquire, if necessary.

5. Government Furnished Permits have been applied for via Joint Permit Application for Maryland

Department of the Environment Waterway & Wetland & U.S. Army Corps of Engineers.

Applications for Maryland Department of the Environment Erosion and Sediment Control have also been submitted, as well as a waiver for stormwater management. Once authorized, the contractor will be responsible for any modifications and fees that alter the original permits due to changes for convenience in the means and methods to perform the work.

E. Coordination with Agency(ies) with Jurisdiction Issuing Permits

1. Coordination: Contact the Agency(ies) with Jurisdiction as needed and sufficiently in advance to avoid delaying the work: Coordinate meetings, reporting requirements, inspections, or any other requirements.

mailto:aeshleman@washco-md.net

01 11 00 - 8

F. Administrative Procedures:

1. Coordinate scheduling and timing of required administrative provisions of project permits with

Agency(ies) with Jurisdiction, Construction Manager, COR, and Park to avoid conflicts and to ensure orderly execution of the Work.

2. Supply all needed information to Agency(ies) with Jurisdiction issuing permits, pay any fees required and provide all material needed to comply with the permit’s conditions and provisions.

3. Submit copies of all obtained permits to the COR.

PART 2 – PRODUCTS (Not Applicable)

PART 3 – EXECUTION (Not Applicable)

END OF SECTION 01 11 00

REVETMENT WALLS AT LEVEL 33

(FINAL DOCUMENTS)

CHOH- 245005

01 27 00 - 1 DEFINITION OF CONTRACT LINE

ITEMS

PART 1 GENERAL

1.01 SUMMARY

SECTION 012700

DEFINITION OF CONTRACT LINE ITEMS

A. Section explains in general, what is and is not included in a contract line item, and limits or cut-off points where one item ends and another begins.

B. If no contract line item exists for a portion of work, include costs in a related item.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION

3.01 LIST OF CONTRACT LINE ITEMS

A. Contract Line Item Number 001: Level 33 Wall Repair.

1. This item consists of all work not included in Contract Line Items 2,3,4, and 5.

2. No separate measurement of quantities shall be made. Payment shall be made at the contract lump sum price.

B. Contract Line Item Number 002: Stone Wall Disassembly.

1. This item consists of all work involved in disassembling and salvaging stones from the existing wall. No differentiation in cost between stone to be salvaged for reuse in stone wall assembly and the remainder to be hauled to NPS facility is to be made.

2. Measurement for payment: Measurement will be based on quantity of stone in-place in the wall prior to disassembly. Contractor shall provide wall thickness of each coursing iteratively during disassembly at 1’ max. vertical increments as measured in every 6 feet of wall length. Only areas with clean back of stone, free of soil or mortar will be measured. Backfill that includes individual stones, that is not connected to the wall cross-section would be measured and paid under CLIN 003 and not included in this item for stone wall disassembly. Measurement calculations shall include survey measurements or tape measurements and be presented in a Microsoft excel spreadsheet and a photograph of each measured area provided to the COR. Elevations of each course measured should be provided relative to the project datums.

3. Payment will be made at the contract price per cubic foot.

C. Contract Line Item Number 003: Excavation.

1. This item consists of all work involved excavation of fill material behind the existing stone wall..

2. Measurement for payment: Measurement will be based on in-situ before and after surveys. The quantity of excavated fill will be calculated using the Average End-Area method. Cross section surveys shall be made by the contractor at maximum 10-foot intervals and the cross-sectional area determined at those intervals. Material removed and paid under other CLINs would be subtracted from the in-situ before surveys. Graphical scaled plots of each cross section shall be provided to the COR along with Microsoft excel spreadsheet calculation of quantities. Excavation at the toe of the existing wall, within the canal prism should not be measured under this item and should instead be accounted for under Contract Line Item Number 001.

3. Payment will be made at the contract price per cubic yard.

D. Contract Line Item Number 004: Mass Concrete.

1. This item consists of all work and materials involved in placing mass concrete fill.

2. Measurement for payment: Measurement will be based on the quantity concrete placed. Provide certified truck tickets for each cubic yard of mass concrete that is placed.

3. Payment will be made at the contract price per cubic yard.

E. Contract Line Item Number 005: Salvaged Stone.

REVETMENT WALLS AT LEVEL 33

(FINAL DOCUMENTS)

CHOH- 245005

01 27 00 - 2 DEFINITION OF CONTRACT LINE

ITEMS

1. This item consists of all work and materials involved in installing salvaged stone on the face of the new wall.

2. Measurement for payment: Measurement will be based on in-place volume as measured on site.

3. Payment will be made at the contract price per cubic foot.

END OF SECTION

01 32 18 - 1

CONSTRUCTION SCHEDULE

SECTION 01 32 16 – CONSTRUCTION SCHEDULE

1.1 SUMMARY

A. Section consists of Construction Schedule requirements including:

1. Schedule of Values

2. Construction Schedule Requirements.

3. Construction Schedule Updates.

4. Time Impact Analysis.

B. Purpose: The Construction Schedule ensures adequate planning, coordination, scheduling, and reporting during execution of the work by the Contractor. It shall assist the Contractor and

Contracting Officer (CO) in monitoring the progress of the work, evaluating proposed changes, and processing Contractor's monthly progress payments. It shall include the dates in the contract, phases, milestones, occupancies, holidays, weather consideration, a critical path, and the requirements of this section.

1.2 DEFINITIONS

A. Activity: A discrete part of a project identified for planning, scheduling, monitoring, and controlling the construction project. Activities included in a construction schedule consume time and resources.

1. Critical activities are activities on the critical path. They start and finish on the planned early start and finish times.

2. Predecessor Activity: An activity that precedes another activity in the network.

3. Successor Activity: An activity that follows another activity in the network.

B. Cost Loading: Allocation of the Schedule of Values for completion of an activity as scheduled.

The sum of costs for all activities must equal the total Contract Sum, unless otherwise approved by the Contracting Officer.

C. Critical Path Method (CPM): Method of planning and scheduling a construction project where activities are arranged based on activity relationships. Network calculations determine when activities can be performed and the critical path of Project.

D. Critical Path: Longest connected chain of interdependent activities through the network schedule that establishes minimum overall Project duration and contains no float.

E. Float: Measure of leeway in starting and completing an activity.

1. Float: Not for the exclusive use or benefit of the Government or Contractor but is jointly owned.

2. Free Float: Amount of time an activity can be delayed without adversely affecting the early start of the successor activity.

01 32 18 - 2

3. Total Float: Measure of leeway in starting or completing an activity without adversely affecting planned Project completion date.

F. Resource Loading: Allocation of manpower and equipment necessary for completion of an activity as scheduled.

G. Fragnet: A partial or fragmentary network that breaks down activities into smaller activities for greater detail.

1.3 SUBMITTALS

A. Electronic Copies: Schedules and reports submitted shall be posted on the NPS/DSC management software website in native electronic file formats. The intent of the Government is to limit the number of printed reports to those determined by the project team as essential.

B. Schedule of Values: After contract award and before Pre-Construction conference, submit schedule of dollar values based on Contract Price Schedule.

C. Construction Baseline Schedule: After contract award and before Pre-Construction conference, submit two paper copies of baseline schedule, large enough to show entire schedule for entire construction period. Utilize Schedule of Values in preparation of Construction Baseline Schedule.

D. Critical Path Method (CPM) Reports: Concurrent with CPM schedule, submit three paper copies of the following computer-generated reports. For each activity, include activity number, activity description, cost and resource loading, original duration, remaining duration, early start date, early finish date, late start date, late finish date, and total float in calendar days.

1. Activity Report: List of activities sorted by activity number and then early start date, or actual start date if known.

2. Logic Report: List of predecessor and successor tasks for activities sorted in ascending order by activity number and then early start date, or actual start date if known.

3. Total Float Report: List of activities sorted in ascending order of total float.

E. Construction Schedule Updates: On or before 7th day preceding progress payment request date, submit estimates of percent completion of each schedule activity and necessary supporting data.

Provide two paper copies.

F. Construction Schedule Revisions and Time Impact Analysis: For each Construction Schedule revision, submit two paper copies of a Time Impact Analysis. Incorporate a Fragmentary Network

(Fragnet) into currently accepted Construction Schedule that demonstrating how Contractor proposes to incorporate a modification, change, delay, or Contractor request.

1.4 QUALITY ASSURANCE

A. Contractor shall meet with Contracting Officer on day of the preconstruction conference to go over:

1. Review software limitations, content and format for reports.

2. Verify availability of qualified personnel needed to develop and update schedule.

01 32 18 - 3

3. Discuss constraints, including phasing, work stages, area separations, interim milestones and partial Government occupancy/substantial completions.

4. Review delivery dates for Government-furnished products.

5. Review schedule for work of separate Government contracts.

6. Review time required for review of submittals and re-submittals.

7. Review requirements for tests and inspections by independent testing and inspecting agencies.

8. Review time required for completion and startup procedures.

9. Review time required for obtaining and activating permits.

10. Review and finalize list of construction activities to be included in schedule.

11. Review baseline schedule comments, resolve issues and progress on incorporating them

12. Review procedures for updating schedule.

13. Discuss reporting requirements and establish protocol for naming and transmitting electronic schedules.

B. Contractor's Schedule Representative: Before the preconstruction conference, designate an authorized representative to be responsible for preparing and maintaining the Construction

Schedule. Submit resume outlining qualifications of Scheduler to Contracting Officer for acceptance. Scheduler shall have prepared and maintained at least 5 previous schedules of similar size and complexity similar to this Contract, demonstrating proficiency of using scheduling software. Authorized representative will be responsible for preparing the Baseline Schedule, required updates, revisions, Time Impact Analyses, and reports.

1.5 COORDINATION

A. Coordinate preparation and processing of schedules and reports with performance of construction activities and with scheduling and reporting of separate Contractors.

B. Coordinate Construction Baseline Schedule with Schedule of Values, list of subcontracts, Submittals Schedule, progress reports, payment requests, and other required schedules and reports.

1. In developing Construction Baseline Schedule, ensure Subcontractor’s work at all tiers, and prime Contractor’s work, is included and coordinated.

2. Secure time commitments for performing critical elements of work from parties involved.

3. Coordinate each construction activity in network with other activities and schedule in proper sequence.

PART 2 - PRODUCTS

2.1 SCHEDULE OF VALUES

A. Breakdown each lump-sum item into component work activities used in the schedule for which progress payments may be requested. Work activities broken out within schedule of values shall be integrated into and made a logical part of the construction baseline schedule. Total costs for the component work activities shall equal contract price for that lump-sum item. Contracting

Officer may request data to verify accuracy of dollar values. Include mobilization, general condition costs, overhead and profit in the total dollar value of unit price items and in the

01 32 18 - 4 component work activities for each lump-sum item. Do not include mobilization, general condition costs, overhead or profit as a separate item.

B. Do not break down unit price items. Use only the contract price for unit price items.

C. Total cost of all items shall equal the contract price. The Schedule of Values will form the basis for progress payments and the Construction Schedule.

2.2 CONSTRUCTION SCHEDULE REQUIREMENTS

A. Construction Baseline Schedule: Prepare Construction Baseline Schedule using a computerized, cost and resource-based, time-scaled Critical Path Method network analysis diagram for the

Work.

1. Develop and finalize Construction Baseline Schedule so it can be accepted for use no later than 30 days after date established for the Notice of Award.

a. Failure to include any work item required for performance of this Contract shall not excuse Contractor from completing work within applicable completion dates, regardless of Governments acceptance of schedule.

2. Establish procedures for monitoring and updating Construction Baseline Schedule and for reporting progress. Coordinate procedures with progress meeting and payment request dates.

B. Construction Baseline Schedule Preparation: Prepare a list of all activities required to complete the Work. Using preliminary Critical Path Method network diagram, prepare a skeleton network to identify probable critical paths.

1. Activities: Indicate estimated duration, sequence requirements, and relationship of each activity in relation to other activities.

2. Critical Path Activities: Identify critical path activities, including those for interim completion dates. Scheduled start and completion dates shall be consistent with Contract milestone dates.

3. Processing: Process data to produce output data on a computer-drawn, time-scaled network. Revise data, reorganize activity sequences, and reproduce as often as necessary to produce the Critical Path Method schedule within the limitations of the Contract Time.

4. Show sequence and interdependence of activities required for completion of work. Ensure work sequences are logical and Construction Baseline Schedule shows a coordinated plan of the work.

5. Resource loading of each activity shall include personnel by labor category and equipment type and capacity proposed to complete the activity in duration shown.

6. Consider seasonal weather conditions in planning and scheduling work influenced by high and low ambient temperatures, wind, or precipitation to ensure completion of work within contract time.

7. Time Frame: Proposed duration assigned to each activity shall be Contractor's best estimate of time required to complete activity considering the scope and resources planned for activity.

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a. An early finish date may be shown but the late finish date shall be same date as last day of contract period. An early completion schedule shall contain:

1) Insert an activity titled "Project Float" as a successor to last activity in early project completion schedule network.

2) Add a milestone titled "Contract End Date" as a successor to the activity

"Project Float".

3) Add duration to the activity "Project Float" as required so the milestone

"Contract End Date" equals the last day of Contract Period.

b. Contract completion date shall not be changed by submission of a schedule that shows an early completion date.

c. Contractor shall limit use of lead or lag duration’s between schedule activities.

d. Project Calendars: Develop and incorporate the following calendars:

1) Administrative Calendar: Include calendar based on a 7-day week to be used on activities based on calendar days. Apply this calendar to administrative tasks or other tasks not affected by non-working days (Federal Holidays, weather, etc.).

2) Project Calendar: Include calendar based on planned work week for the project. Include Federal Holidays, weekends, and non-workdays indicated in contract documents. Apply this calendar to activities not anticipated to be affected by weather. Be clear when identifying number of work days in work week.

3) Weather Calendar: Utilize Project Calendar and show anticipated normal downtime related to weather as non-working time. Weather days shall be based on data for local area from a reliable source like the National Oceanic and Atmospheric Administration (NOAA), National Park Service records, or source acceptable to Contracting Officer. Apply this calendar to activities anticipated to be affected by weather.

e. Activity Duration: Define so no activity is longer than 14 days, except for non-construction activities including mobilization, shop drawings and submittals, fabrication and delivery of materials and equipment.

f. Procurement Activities: Include procurement process activities for long lead items and major items, requiring a cycle of more than 60 calendar days, as separate activities in the schedule. Procurement cycle activities can include submittals, approvals, purchasing, fabrication, and delivery.

g. Submittal Review Time: Include review and re-submittal times indicated.

Coordinate submittal review times in Construction Baseline Schedule.

h. Substantial Completion: Allow time for Government administrative procedures necessary for certification of Substantial Completion. (For more information, refer to Specification 01 77 00 "Closeout Procedures.")

8. Constraints: Include constraints and work restrictions indicated in Contract Documents and as follows in schedule and show how the sequence of Work is affected.

a. Phasing: Arrange list of activities on schedule by phase.

b. Work under More Than One Contract: Include a separate activity for each contract.

c. Work Restrictions: Show effect of the following on the schedule:

01 32 18 - 6

1) Coordination with existing construction

2) Limitations of continued occupancies

3) Uninterruptible services

4) Partial occupancy before Substantial Completion

5) Use of premises restrictions

6) Provisions for future construction

7) Seasonal variations

8) Environmental control

9) Permit provisions

d. Work Stages: Indicate important stages of construction for each major portion of the

Work.

1) Subcontract awards

2) Submittals

3) Purchases

4) Mockups

5) Fabrication

6) Sample testing

7) Deliveries

8) Installation

9) Tests and inspections

10) Adjusting

11) Curing

12) Building flush-out.

13) Building commissioning activities.

9. Milestones: Include milestones indicated in Contract Documents in schedule, including, but not limited to, Notice to Proceed, Substantial Completion.

C. Joint Review, Revision, and Acceptance:

1. Within seven calendar days of receiving Contractor's proposed Construction Baseline

Schedule, Contracting Officer shall review initial Construction Baseline Schedule.

2. Within seven calendar days after review, Contractor shall revise and resubmit Construction

Baseline Schedule in accordance with comments presented from review.

3. In the event the Contractor fails to define any element of work, activity, or logic, and the

Contracting Officer review does not detect this omission or error, such omission or error, when discovered by Contractor or Contracting Officer, shall be corrected by Contractor within seven calendar days and shall not affect contract period.

4. Upon acceptance of the Construction Baseline Schedule, Contracting Officer saves schedule as a baseline and updates on a monthly basis. Construction schedule update will be used to evaluate Contractor's monthly applications for payment based upon information developed at monthly Construction Schedule update meeting.

D. Cost Correlation: In the heading of the schedule, provide a cost correlation line, indicating planned and actual costs. On the line, show dollar volume of Work performed as of dates used to prepare payment requests.

01 32 18 - 7

1. Contractor shall assign cost to construction activities on Construction Baseline Schedule.

Costs shall not be assigned to submittal activities unless specified otherwise but may, with

Contracting Officer’s approval, be assigned to fabrication and delivery activities. Costs shall be included for testing and commissioning activities, operation and maintenance manuals, punch list activities, Project Record Documents, and demonstration and training

(if applicable).

2. Each activity cost shall reflect an accurate value based on the Contract Price Schedule.

3. Total cost assigned to activities shall equal total Contract Price.

E. Recovery Schedule: When periodic schedule update indicates Work is [14] <Insert number> or more calendar days behind current accepted schedule, a separate recovery schedule indicating means by which Contractor intends to regain compliance with the schedule shall also be submitted. Indicate changes to working hours, working days, crew sizes, and equipment required to achieve compliance, and date by which recovery shall be accomplished.

F. Computer Software: Prepare schedules using a program developed specifically to manage construction schedules.

1. Use Microsoft Project or Primavera, for (Windows 7 and newer.)

PART 3 - EXECUTION

3.1 CONSTRUCTION SCHEDULE UPDATES

A. Progress Meeting Updates: Provide a 2 week look-ahead schedule, derived from the currently accepted schedule, before each weekly progress meeting. Utilize look-ahead schedule to facilitate and take notes on discussions held during progress meeting.

B. Monthly Schedule Updates:

1. General: Update Construction Schedule on monthly basis to reflect construction progress and activities throughout entire contract period and until project substantial completion.

The status date of each schedule update shall be the 7th day preceding the progress payment request date.

2. Procedure: Contractor shall meet with Contracting Officer each month at Construction

Schedule update meeting to review progress made through the status date of the

Construction Schedule update, including dates activities were started or completed and percentage of work completed on each activity started or completed.

3. Reports: Concurrent schedule revisions, prepare tabulated reports showing:

a. Identification of activities that have changed

b. Changes in early and late start dates

c. Changes in early and late finish dates

d. Changes in activity durations in workdays

e. Changes in the critical path

f. Changes in total float or slack time

g. Changes in the Contract Time

01 32 18 - 8

4. Narrative: Report shall include a brief description of actual progress made during update period; actual and potential delaying activities; impediments to progress; issues related to inclement weather; progress toward established milestones and project float. Report shall include a brief description of work anticipated to be performed in the next month. Minor revisions to the schedule should be identified for evaluation and acceptance or rejection.

5. As Work progresses, indicate Actual Completion percentage for each activity.

6. If schedule update shows a late finish date after contract completion date, include:

a. Known delays

b. Actions to get back on schedule

c. Pending modifications

d. Impediments or constraints affecting progress

7. Progress Payments: Monthly updating of the currently accepted Construction Schedule shall be an integral part of the process upon which progress payments will be made. If

Contractor fails to provide schedule updates or revisions, a portion of the monthly payment may be retained until corrections have been made.

C. Distribution: Distribute copies of accepted schedule to Contracting Officer, Contracting Officers

Representative, Construction Management Representative, Subcontractors, testing and inspecting agencies, and other parties identified by Contractor with a need-to-know schedule responsibility.

1. Post copies in Project meeting rooms and temporary field offices.

2. When revisions are made, distribute updated schedules to same parties and post in same locations. Delete parties from distribution when they have completed their assigned portion of the Work.

D. Construction Schedule Revisions:

1. Required Revisions: If, as a result of the monthly schedule update, it appears the currently accepted Construction Schedule no longer represents actual prosecution and progress of the work, Contracting Officer will request, and Contractor shall submit, a revision to the

Construction Schedule. Contractor may also request reasonable revisions to currently accepted Construction Schedule in event the Contractor's planning for the work is revised.

If Contractor desires to make changes, Contractor shall notify Contracting Officer in writing, stating reason for proposed revision. Accepted revisions shall be incorporated into currently accepted Construction Schedule for next monthly schedule update.

2. Procedure: If revision to currently accepted Construction Schedule is contemplated, Contractor or Contracting Officer shall advise the other in writing at least seven calendar days prior to next monthly schedule update meeting, describing revision and reasons for the revision.