A06 - Specifications.pdf

VICKSBURG NATIONAL MILITARY PARK

Repair Pemberton Headquarters Roof, Front Porch and Exterior

PMIS NO. 219142

PROJECT SPECIFICATIONS

NPS INTERIOR REGIONS 1, 2, AND 4

WEST MABO

ATLANTA FEDERAL CENTER 1924 BUILDING

100 ALABAMA STREET SW

ATLANTA, GEORGIA 30303

April 17, 2020

Date

Joseph K. Oppermann – Architect, P.A.

539 North Trade Street Winston-Salem, NC 27101

April 17, 2020

Seal

GENERAL PEMBERTON’S HEADQUARTERS VICKSBURG, MS

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TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 Summary of Work 01 21 00 Allowances 01 20 00 Unit Prices 01 26 01 Contract Modification Procedures 01 27 00 Definition of Contract Line Items 01 31 00 Project Management and Coordination 01 32 16 Construction Schedule 01 32 33 Photo Documentation for Historic Preservation Projects 01 33 23 Submittal Procedures 01 35 13.22 Archeological Protection 01 35 23 Safety Requirements 01 35 91 Historic Preservation Treatment Procedures 01 40 00 Quality Requirements 01 42 00 Reference Standards 01 50 00 Temporary Facilities and Controls 01 67 00 Product Requirements 01 73 40 Execution 01 74 19 Construction Waste Management and Disposal 01 77 00 Closeout Procedures 01 78 23 Maintenance Data 01 81 13 Sustainable Design Requirements for Non-LEED Projects

DIVISION 02 – EXISTING CONDITIONS

02 15 00 Bracing and Shoring 02 41 19 Selective Demolition

DIVISION 03 - CONCRETE

03 30 00 Cast-in-place Concrete

DIVISION 04 - MASONRY

04 01 20.91 Masonry Restoration and Repair

DIVISION 05 - METALS

05 50 00 Metal Fabrications

DIVISION 06 – WOOD, PLASTICS, & COMPOSITES

06 03 12 Historic Wood Repair 06 10 00 Rough Carpentry

DIVISION 07 – THERMAL & MOISTURE PROTECTION

07 01 50.19 Preparation for Reroofing 07 57 10 Canvas Decking and Deck Coating 07 31 26 Slate Shingles 07 61 00 Sheet Metal Roofing 07 62 00 Sheet Metal Flashing and Trim 07 92 00 Joint Sealants

DIVISION 08 – OPENINGS

Not Used

DIVISION 9 – FINISHES

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TABLE OF CONTENTS

09 01 90.52 Exterior Re-painting 09 96 00 High Performance Coatings 09 97 26 Cementitious Coatings (Lime-based Stucco)

DIVISION 10 – DIVISION 30 (Not Used)

DIVISION 31 – EARTHWORK

31 20 00 Earth Moving 31 23 33 Trenching and Backfill

DIVISION 32 – 45

Not Used

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091015 SUMMARY OF WORK

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Work covered by the Contract Documents.

2. Work phases.

3. Contractor use of premises.

4. Public use of site.

5. Occupancy requirements for buildings.

6. Work Restrictions.

7. Special Construction Requirements.

8. Additional Reports.

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location: Vicksburg National Military Park, General Pemberton’s Headquarters, Vicksburg, Mississippi – 1080 Crawford Street, Vicksburg, Warren County, Mississippi.

B. The Work consists of the following:

1. The Work falls into two categories. Restoration of the two-story front porch and reroofing of the house as shown in the drawings and as specified.

Summary of the Porch Restoration:

a. Document, disassemble, mark, catalog and store existing ceilings of the first and second floor of the existing two-story porch located on the front (north) of the structure.

b. Shore existing porch roof, porch roof framing, second floor ceiling, second floor porch floor, and second floor porch framing down to grade.

c. Lift all horizontal porch framing members back to original positions as can be determined from undamaged elements.

d. Document, disassemble, mark catalog and store existing porch millwork, balustrades, column boxing, columns and other historic wood elements.

e. Disassemble, mark, catalog, and store existing second floor porch framing members and remaining second floor porch decking, up to the underside of the second floor ceiling framing. The porch roof and porch roof framing shall remain in place.

f. Disassemble, mark, catalog and store existing soffit boxing around second floor ceiling framing

g. Document geometry and positions of masonry piers. Disassemble masonry piers down to the concrete slab level and salvage brick for reinstallation. Remove the concrete slab. Disassemble piers and masonry foundation wall between the piers down to the bottom of the foundations. Salvage brick for reinstallation.

h. Excavate for and pour new foundations.

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i. Reconstruct new foundation, piers, masonry, screen wall to the underside of the original first floor slab. Reconstruct pier up to the original height. Pour new concrete porch slab, tying into the piers. Install new tie rods and anchorages, tying slab to the original building.

j. Reconstruct second floor porch framing, reusing existing members or replacing with new as described in the project documents. Shore porch in place during reconstruction. Install porch decking.

k. Repair or reconstruct (as necessary) second floor porch ceiling framing and roof framing as shown in the project documents.

l. Repair or replace in-kind as necessary, and reinstall columns from masonry piers up to the second-floor porch framing and from the second-floor porch deck up to the ceiling and the roof framing.

m. Obtain representative samples of the cornice and architrave moldings to be used to develop templates for knives to mill replacement moldings.

n. Repair using epoxy or dutchman or replace, in-kind as necessary and reinstall millwork. Allowances for millwork have been established for pricing purposes.

o. Stucco exposed faces of masonry piers and masonry foundation wall between piers to match existing.

Summary of reroofing

a. Tear off existing temporary roof-covering and remove existing Oriented Strand

Board.

b. Repair or replace as necessary, main roof framing as shown in the project documents.

c. Repair or replace, in-kind, damaged roof deck boards.

d. Rework framing on two low-sloped roof areas on the east and west ends of the front porch as shown in the project documents for positive drainage.

e. Install new roof access hatch and tie off points.

f. Install new natural slate roof.

g. Install of new zinc-tin coated copper flat-seam metal roof where specified.

h. Either: Repair/repaint existing tern metal roof (Base Bid).

i. Or: Replace existing tern metal roof with new zinc-tin coated copper flat-seam metal roof (Option A).

j. Repair gutters (internal and half-round) and downspouts.

k. Install new half-round gutter in specified locations.

l. Repair cornice millwork at the roof. See Allowances.

2. The project consists of the disassembly/rebuilding of the two-story front porch and re-roofing of Pemberton’s Headquarters.

C. Project will be constructed under a single prime contract.

1.3 CONTRACTOR USE OF SITE

A. General: Contractor shall have full use of the site for construction operations during the construction period. Contractor's use of the site is limited only by the Government's right to perform work or to retain other contractors on portions of Project.

B. Storage of Materials: Confine storage of materials to an area designated by the NPS Project Manager during the pre-bid meeting.

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C. Preservation of Natural Features:

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

2. Provide temporary barriers to protect existing trees and plants and root zones.

3. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with

Contracting Officer and remove agreed-on roots and branches that interfere with construction.

4. Do not fasten ropes, cables, or guys to existing trees.

5. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

D. Driveways and Entrances: Keep driveways and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

1. Schedule deliveries to minimize use of driveways and entrances.

2. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

E. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

1.4 PUBLIC USE OF SITE

A. The building will be closed to the public during construction.

1.5 OCCUPANCY REQUIRMENTS FOR BUILIDINGS

A. Existing Buildings

1. Full Government Occupancy: Government will occupy buildings that will be under construction during the entire contract period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the Work so as not to interfere with Government's day-to-day operations. Maintain existing exits, unless otherwise indicated.

a. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from the CO.

b. Maintain existing building in a weather tight condition throughout construction period. Repair damage caused by construction operations. Protect building and its occupants during construction period.

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1.6 CONDUCT OF OPERATIONS

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

B. Work on Saturdays, Sundays, Federal holidays or at night may not be performed without prior consent from the Contracting Officer. Submit requests 48 hours in advance of the work to the Contracting Officer for approval.

C. No signs or advertisements (except those specified in this agreement) shall be displayed on the construction site or within the park unless approved by the Contracting Officer.

1.7 WORK RESTRICTIONS

A. On-Site Work Hours: Work shall be generally performed during normal business working hours of 7:00 a.m. to 5:00 p.m., Monday through Friday, except when otherwise indicated.

1. Weekend Hours: 7:00 a.m. to 5:00

B. Existing Utilities

1. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

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

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

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

1. Notify Contracting Officer not less than two business days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Contracting Officer’s written permission.

3. Hours for Utility Shutdowns: Provide temporary power for computers and servers during outages.

D. Nonsmoking Building: Smoking is not permitted on the project site.

1.8 SPECIAL CONSTRUCTION REQUIREMENTS

A. Project Website: A project website administered by the NPS will be used for purposes of managing communication and documents during the construction stage.

1. See Section 01 31 00 “Project Management and Coordination” for requirements on using the Project Website.

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1.9 ADDITIONAL REPORTS [For information only]

A. A report entitled Historic Structure Report, 2005 prepared by Joseph K. Oppermann – Architect, P.A.

B. A report entitled Condition Assessment Report (CAR), 2016 prepared by Joseph K. Oppermann – Architect, P.A.

C. A copy of these reports are available to all plan holders with this package.

D. If conflicts occur between the report and drawings or specifications, the drawings and specifications govern.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01 11 00

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ALLOWANCES

SECTION 012100 - ALLOWANCES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

1.2 SUMMARY

A. Section includes administrative and procedural requirements governing allowances.

B. Types of allowances include the following:

1. Quantity allowances.

C. Related Requirements:

1. Section 012200 "Unit Prices" for procedures for using unit prices, including adjustment of quantity allowances when applicable.

2. Section 012601 "Contract Modification Procedures" for procedures for submitting and handling Change Orders.

1.3 DEFINITIONS

A. Allowance: A quantity of work or dollar amount included in the Contract, established in lieu of additional requirements, used to defer selection of actual materials and equipment to a later date when direction will be provided to Contractor. If necessary, additional requirements will be issued by Change Order.

1.4 ACTION SUBMITTALS

A. Submit proposals for purchase of products or systems included in allowances in the form specified for Change Orders.

1.5 INFORMATIONAL SUBMITTALS

A. Submit invoices or delivery slips to show actual quantities of materials delivered to the site for use in fulfillment of each allowance.

B. Submit time sheets and other documentation to show labor time and cost for installation of allowance items that include installation as part of the allowance.

C. Coordinate and process submittals for allowance items in same manner as for other portions of the Work.

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ALLOWANCES

1.6 QUANTITY ALLOWANCES

A. Allowance shall include cost to Contractor of specific products and materials ordered by Contracting Officer or selected by Contracting Officer under allowance and shall include taxes, freight, and delivery to Project site.

B. Unless otherwise indicated, Contractor's costs for receiving and handling at Project site, labor, installation, overhead and profit, and similar costs related to products and materials ordered by Contracting Officer or selected by Contracting Officer under allowance shall be included as part of the Contract Sum and not part of the allowance.

C. Unused Materials: Return unused materials purchased under an allowance to manufacturer or supplier for credit to Contracting Officer, after installation has been completed and accepted.

1. If requested by Contracting Officer, retain and prepare unused material for storage by Contracting Officer. Deliver unused material to Contracting Officer's storage space as directed.

1.7 ADJUSTMENT OF ALLOWANCES

A. Allowance Adjustment: To adjust allowance amounts, prepare a Change Order proposal based on the difference between purchase amount and the allowance, multiplied by final measurement of work-in-place where applicable. If applicable, include reasonable allowances for cutting losses, tolerances, mixing wastes, normal product imperfections, required maintenance materials, and similar margins.

1. Include installation costs in purchase amount only where indicated as part of the allowance.

2. If requested, prepare explanation and documentation to substantiate distribution of overhead costs and other markups.

3. The base bid will be adjusted by an Add or a Deduct to reflect actual quantities used.

B. Submit claims for increased costs due to a change in the scope or nature of the allowance described in the Contract Documents, whether for the purchase order amount or Contractor's handling, labor, installation, overhead, and profit.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine products covered by an allowance promptly on delivery for damage or defects. Return damaged or defective products to manufacturer for replacement.

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ALLOWANCES

3.2 PREPARATION

A. Coordinate materials and their installation for each allowance with related materials and installations to ensure that each allowance item is completely integrated and interfaced with related work.

3.3 SCHEDULE OF ALLOWANCES

A. Allowance No. 1 – Repairs to Wood Using Wood Consolidant: Quantity Allowance:

1. Include the following quantities to make Repairs to Wood Using Wood Consolidant, as specified in Section 060312 “Historic Wood Repair” and as shown on Drawings.

Repair Using Wood Consolidant.

Unit of Measure = Each Repair of 24 Square Inches per repair.

Ex.: A repair 2 inches wide x 12 inches in length (24 S.I.) would count as 1 unit.

A repair 3 inches wide x 16 inches in length (48 S.I.) would count as 2 units.

a. 30 Repairs to Wood using Wood Consolidant

2. This allowance includes material cost, receiving, handling, and installation and Contractor overhead and profit.

3. Coordinate quantity allowance adjustment with corresponding unit-price requirements in Section 012200 "Unit Prices."

B. Allowance No. 2 – Wood Replacement (Dutchman): Quantity Allowance:

1. Include the following quantities to make Wood Replacement (dutchman) Repairs as specified in Section 060312 “Historic Wood Repair” and as shown on Drawings.

a. Cornice Molding Type 'A' 20 L.F.

b. Frieze Molding Type 'B' 15 L.F.

c. Architrave Molding Type 'C’ 15 L.F.

d. Balustrade - Upper Rail 5 L.F.

e. Balustrade - Lower Rail 5 L.F.

f. Baluster 4 L.F.

g. Column Post 16 L.F.

h. Column Wrap 30 L.F.

i. Perimeter Beam Wrap At

Second Floor Ceiling 10 L.F.

j. Soffitt 30 L.F.

k. Fascia 15 L.F.

2. This allowance includes material cost, receiving, handling, and installation and Contractor overhead and profit.

3. Coordinate quantity allowance adjustment with corresponding unit-price requirements in Section 012200 "Unit Prices."

C. Allowance No. 3 – Wood Replacement (Full Replacement): Quantity Allowance:

1. Include the following quantities to make Wood Replacement (Full Replacement) Repairs as specified in Section 060312 “Historic Wood Repair” and as shown on Drawings.

a. Cornice Molding Type 'A' 10 L.F.

b. Frieze Molding Type 'B' 10 L.F.

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ALLOWANCES

c. Architrave Molding Type 'C' 10 L.F.

d. Balustrade - Upper Rail 5 L.F.

e. Balustrade - Lower Rail 5 L.F.

f. Baluster 5 Ea.

g. Column Post 9 L.F.

h. Column Wrap 160 L.F.

i. Dentils 70 EA.

2. This allowance includes material cost, receiving, handling, and installation and Contractor overhead and profit.

D. Allowance No. 4 – Wood Porch Ceiling Replacement: Quantity Allowance:

1. Include the following quantities to make Wood Replacement (Full Replacement) Repairs as specified in Section 060312 “Historic Wood Repair” and as shown on Drawings.

a. Replace wood porch ceiling 15 S.F.

E. Allowance No. 5 – Wood Roof Deck Replacement: Quantity Allowance:

1. Include the following quantities to make Wood Replacement (Full Replacement) Repairs as specified in Section 060312 “Historic Wood Repair” and as shown on Drawings.

a. Replace wood roof deck 50 S.F.

F. Coordinate quantity allowance adjustment with corresponding unit-price requirements in Section 012200 "Unit Prices."

END OF SECTION 012100

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UNIT PRICES

SECTION 012200 - UNIT PRICES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

1.2 SUMMARY

A. Section includes administrative and procedural requirements for unit prices.

B. Related Requirements:

1. Section 012100 "Allowances" for procedures for using unit prices to adjust quantity allowances.

2. Section 012601 "Contract Modification Procedures" for procedures for submitting and handling Change Orders.

1.3 DEFINITIONS

A. Unit price is an amount incorporated into the Agreement, applicable during the duration of the Work as a price per unit of measurement for materials, equipment, or services, or a portion of the Work, added to or deducted from the Contract Sum by appropriate modification, if the scope of Work or estimated quantities of Work required by the Contract Documents are increased or decreased.

1.4 PROCEDURES

A. Unit prices include all necessary material, plus cost for delivery, installation, insurance, applicable taxes, overhead, and profit.

B. Measurement and Payment: The Base Bid shall be based upon the stated Allowance Amounts.

The contract will be adjusted with an “Add” or “Deduct” to the Base Bid Contract Amount using the Unit Prices and the actual quantities used. To adjust allowance amounts, prepare a Change Order proposal based on the difference between purchase amount and the allowance, multiplied by final measurement of work-in-place where applicable.

1. The base bid will be adjusted by an Add or a Deduct to reflect actual quantities used.

C. The Contracting Officer reserves the right to reject Contractor's measurement of work-in-place that involves use of established unit prices and to have this work measured, at Contracting Officer's expense, by an independent surveyor acceptable to Contractor.

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UNIT PRICES

D. List of Unit Prices: A schedule of unit prices is included in Part 3. Specification Sections referenced in the Part 3 "Schedule of Unit Prices" Article contain requirements for materials described under each unit price.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 SCHEDULE OF UNIT PRICES

A. Unit Price No. 1 – Repairs to Wood Using Wood Consolidant:

1. Description: Unit Price to make repairs to wood using wood consolidant in accordance with Section 060312 “Historic Wood Repair."

2. Unit of Measure = Each Repair of 24 Square Inches per repair.

3. Quantity Allowance: Coordinate unit price with allowance adjustment requirements in

Section 012100 "Allowances."

B. Unit Price No. 2 – Wood Replacement (Dutchman): Quantity Allowance:

1. Description: Unit Price to make Wood Replacement (dutchman) Repairs as specified in

Section 060312 “Historic Wood Repair” and as shown on Drawings.

2. Unit of Measure – As noted below:

a. Cornice Molding Type 'A' 20 L.F.

b. Frieze Molding Type 'B' 15 L.F.

c. Architrave Molding Type 'C’ 15 L.F.

d. Balustrade - Upper Rail 5 L.F.

e. Balustrade - Lower Rail 5 L.F.

f. Baluster 4 L.F.

g. Column Post 16 L.F.

h. Column Wrap 30 L.F.

i. Perimeter Beam Wrap At

Second Floor Ceiling 10 L.F

j. Soffitt30 L.F.

k. Fascia 15 L.F

3. Quantity Allowance: Coordinate unit price with allowance adjustment requirements in Section 012100 "Allowances."

C. Unit Price No. 3 – Wood Replacement (Full Replacement): Quantity Allowance:

1. Description: Unit Price to make Wood Replacement (Full Replacement) Repairs as specified in Section 060312 “Historic Wood Repair” and as shown on Drawings.

2. Unit of Measure – As noted below:

a. Cornice Molding Type 'A' 10 L.F.

b. Frieze Molding Type 'B' 10 L.F.

c. Architrave Molding Type 'C' 10 L.F.

d. Balustrade - Upper Rail5 L.F.

e. Balustrade - Lower Rail 5 L.F.

f. Baluster 5 Ea.

g. Column Post 9 L.F.

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UNIT PRICES

h. Column Wrap 160 L.F.

i. Dentils 70 EA.

D. Quantity Allowance: Coordinate unit price with allowance adjustment requirements in Section 012100 "Allowances."

E. Unit Price No. 4 – Wood Porch Ceiling Replacement: Quantity Allowance:

1. Description: Unit Price to repair roof deck as specified in Section 061000 “Rough

Carpentry” and as shown on Drawings.

2. Unit of Measure – Per Square Foot (S.F.)

F. Unit Price No. 5 – Wood Roof Deck Replacement: Quantity Allowance:

1. Description: Unit Price to repair roof deck as specified in Section 061000 “Rough

Carpentry” and as shown on Drawings.

2. Unit of Measure – Per Square Foot (S.F.)

END OF SECTION 012200

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031414 CONTRACT MODIFICATION PROCEDURES

SECTION 01 26 01 – CONTRACT MODIFICATION PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. The work of this section consists of administrative and procedural requirements for contract modifications.

1.2 DEFINITIONS AND ALLOWANCES

A. Home Office Overhead: Those costs incurred in support of all of a contractor’s projects and not attributable to a specific job. The cost for home office overhead is only allowed as a percentage of all direct work excluding profit. The following items represent allowable home office overhead costs identified in Part 31 of the Federal Acquisition Regulation (FAR):

1. Rent

2. Utilities

3. Furnishings

4. Office equipment

5. Executive and management staff not exclusively assigned to the project

6. Support, accounting, and administrative staff

7. Preparation of cost proposals, estimating, and schedule analyses connected with

Modifications

8. Estimating and preconstruction services

9. Mortgage costs

10. Real estate and corporate taxes

11. Automobile maintenance and travel costs for home office personnel

12. Home office insurances i.e. structure, automotive, umbrella, flood, etc.

13. Depreciation of equipment and other assets

14. Home office supplies (paper, staples, etc.)

15. Legal services

16. Accounting and data processing

17. Professional fees/registration

B. General Conditions (Field Office Overhead): Management and administrative costs incurred on site for the designated project. Costs associated with the preparation of modifications will not be allowed. The costs for these items are to be included only in the general conditions of the modification estimate. Only in the case of a contract time extension are additional general conditions included in modifications. The following items, if applicable, are considered allowable costs for calculating General Conditions:

1. Project Manager, Assistant Project Manager

2. Superintendent, Assistant Superintendent

3. Quality Control, Safety Officer, Environmental Manager, etc.

4. Engineers

5. Travel, lodging, and per diem (as established by Federal Travel Regulations)

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6. Scheduling

7. Field Office Trailers and associated temporary utilities

8. Field office supplies

a. Mailing and couriers

b. Reproduction costs

c. Storage

d. Phones

e. Computers

f. Copiers

9. Personal vehicles i.e. Superintendent Pickup trucks

C. General Requirements: These are costs directly associated with the project and are necessary to perform the actual work of the modification. These costs shall be shown as direct costs in the estimate. The following items, if applicable, are considered allowable costs for calculating General Requirements:

1. Hoisting

2. Material handling

3. Temporary fencing

4. Port-a-lets

5. Trash removal, dumpsters

6. Barricades

7. Small tools

8. Safety supplies

9. Scaffolding

10. Daily cleaning

11. Traffic control

12. Temporary signage

13. Temporary heating and power

D. Personnel Costs: Costs included in the modification must only be for General Conditions staff and workers actually present and working on the project site. Modification costs for salaried workers are only allowed within the structure of a 40 hour week and no overtime or holiday pay will be allowed.

1. Worker Hourly Rates are costs directly associated with the individual worker and consist of the following:

a. Base Rate: This is the hourly rate paid directly to the worker

b. Labor Burden: Employer payments of all applicable burdens, this includes insurance and taxes that the business must pay on behalf of the worker to government entities and educational forums , such as:

1) Social Security

2) Medicare

3) Workers Compensation– Policy and company calculation to be made available.

4) FUTA– Cap Rate and percentage to be proportionally allocated over one year.

5) SUTA– Cap Rate and percentage to be proportionally allocated over one year.

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6) Union agreement costs – Other costs required under an enforceable collective bargaining agreement.

c. Fringe Benefits: Various non-wage compensations provided to employees such as:

1) Health Care Insurance Premiums

2) Cell Phone

3) Clothing

4) 401K and Pensions

5) Vehicle allowances

6) Gas allowance

7) Life insurance premiums

8) Disability insurance

9) Other Fringe Benefits required under an enforceable collective bargaining agreement

E. Bonuses or Deferred Compensation: No Bonus or Deferred Compensation will be allowed within any components of pricing including Home Office Overhead, General Conditions, General Requirements, Hourly Worker Rates, or the direct costs of work.

F. General Liability Insurance: An insurance policy that protects the contractor from claims resulting from bodily injury or property damage to a third party. Include this as a separate line item within all modification proposals and provide a current insurance quote upon request.

G. Performance and Payment Bonds: A performance bond is a surety bond issued by an insurance company or bank to guarantee satisfactory completion of a project. The Payment Bond guarantees that the contractor will pay the labor and material costs they have incurred. Banks and Insurance companies charge a premium for each individual project based on a sliding scale which relates to the size of the project. Include this as a separate line item in modification proposals and provide current company bonding rates upon request.

H. Builder’s Risk Insurance: This covers the contractor’s loss due to fire, high winds, or other natural forces. This is not reimbursed by the National Park Service (NPS) and shall not be included in modification proposals.

1.3 MODIFICATION PROPOSAL PRICING REQUIREMENTS

A. General:

1. Your proposal must be received in the format and within the time frame specified in the Request for Proposal letter. Costs or delays resulting from failure of contractor to submit within the time frame specified will not be compensable.

2. The proposal must be detailed with itemized lists of equipment, materials, labor, production rates, overhead, profit, and bond markup for each item. Labor costs must be itemized by craft and hourly rate, including Fringe Benefits and Labor Burden. If the costs of Fringe Benefits and Labor Burden are not itemized, it is assumed that that they are included in the hourly rate shown, or contractor is not requesting reimbursement.

Contractor may utilize the government provided Contractor Estimate Form, or their

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own form, provided that it contains the same information and level of detail as the Gov’t provided form.

3. Requests for extensions of contract time as a result of this change must be justified with a Time Impact Analysis (TIA). Refer to Division 01 Specification, “Construction Schedule”, for time impact analysis requirements. TIA and associated costs must be received with the proposal by the date shown within the Request for Proposal letter.

Contractor’s failure to submit within the specified time frame will be construed as the Contractor waiving the right for additional time and no time extension will be allowed.

4. All supporting documentation used to justify the proposed modification will be made available to the Contracting Officer upon request.

5. Contractor must review and approve all subcontractor/supplier pricing in detail for proper format, scope, production rates, and pricing prior to submission to the NPS. All delay costs associated with not reviewing and approving subcontractor/supplier pricing will be borne by the Contractor.

6. All pricing and production rates within the estimate must be based on fair and reasonable pricing and cannot include built-in contingency.

B. Labor:

1. Contractor shall estimate the cost of labor by itemizing each craft involved, indicating worker hourly rate (base rate + labor burden + fringe benefits) for each and itemizing the hours required for each craft that will be directly engaged in modification work.

Any work proposed that will require overtime work or premium pay shall be itemized separately. All rates shall be in accordance with the Davis-Bacon Act as incorporated herein. Labor Burden may include payroll taxes, Social Security, unemployment insurances, workers compensation insurance, FICA, FUTA, and other direct costs resulting from Federal, State or local laws.

2. Itemize labor costs for equipment operators separate from equipment costs.

3. The labor cost for foremen shall only be costs for related work required for the modification.

C. Materials:

1. The estimated cost for materials shall include quotes from multiple sources. Material prices must include all applicable fees and credits, including but not limited to, sales tax, freight and delivery charges, and tax rebates.

2. No markup shall be applied to any material provided by the NPS.

D. Equipment:

1. Equipment used for the project must be appropriately sized for the work being performed.

2. Do not include costs for “miscellaneous tools and equipment”, in your proposal for a replacement value of $500 or less. Costs shown in excess of $500 must be broken out separately.

3. Regardless of ownership, the rates to be used in determining equipment rental costs shall be the lowest cost from one of the following sources:

a. U.S. Army Corps of Engineers , Ownership and Operating Expense Schedule (use latest edition and applicable region)

b. Construction Blue Book

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c. Local equipment rental rates, documented by actual invoice charges, or itemized vendor quotes.

4. The estimated equipment rates shall include the operating costs of all fuel, oil, lubrication, supplies, small tools, necessary attachments, ground engaging components, tires & tracks, routine repairs and maintenance (cost of major repair and overhaul is not allowed per FAR 31.105(d)(2)), depreciation, storage, insurance, and all incidentals. Mobilization, if applicable, may be included for equipment solely used on the modification work but must be listed separately.

5. Estimate the full rate for equipment only for the duration that the equipment will be utilized to accomplish the work of the modification.

6. Standby unit rates used are to be in accordance with paragraph 1.3, D, 2, above. If the US Army Corp of Engineers is utilized then their standby rates prevail. If Bluebook or local equipment pricing is accepted, then ½ of the equipment costs minus any operating costs, major repair and overhaul will be accepted.

7. If equipment is in standby mode due solely to a documented NPS delay, the established standby rate shall apply from the first day of the delay.

8. Equipment that is not used and on the job site for up to five consecutive business days may be classified at standby rates, provided that the equipment is or has been used solely to perform work on the modification and will be necessary to complete additional modification work. Equipment that is still on the jobsite but not in use after five consecutive business days will not be considered in the modification pricing.

9. Requests for compensation for equipment stand by time must be justified, documented and itemized separately.

10. The estimated timeframe (daily, weekly, monthly) for use of the equipment must reflect the lowest cost to the Government.

E. Establishment and Application of Overhead and Profit Percentages:

1. Home Office Overhead and Profit (OH&P) shall be applied to direct costs only. Profit shall not be applied to overhead amounts; and overhead shall not be applied to profit.

Home office overhead shall contain only allowable, allocable, and reasonable costs per the contract documents and FAR Part 31. Profit percentages are based on risk factors found in FAR Part 31which have been applied to the specific type of work included in this project. Negotiated rates shall not exceed the following percentages for OH&P for contractor self-performed work:

Overhead………………10% Profit………………5.45%

2. Total aggregate limit of markup (OH&P) for contractor and subcontractors on modification work shall not exceed 25%. The NPS will not be responsible for allocation of percentages between contractor and subcontractors at any tier.

3. If contractors form a partnership, than the partnership may only receive home office overhead and profit in the same amount as an individual contractor (refer to par 1.3,E,1 above). It is the responsibility of the partners to decide on the division of revenue.

4. Combined Increases and Decreases: On proposals involving both increases and decreases in the Contract Price, the overhead and profit mark-ups are required on the net increases and deducted on net decreases.

5. At no time can profit be calculated on Overhead or itself, it must be calculated on direct costs of work only.

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PART 2 - PRODUCTS

PART 3 - EXECUTION

END OF SECTION 012601

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082714 DEFINITION OF CONTRACT LINE ITEMS

SECTION 01 27 00 – DEFINITION OF CONTRACT LINE ITEMS

PART 1 - GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general, what is and what is not included in a contract line item, and the limits or cut-off points where one item ends and another begins.

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

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 LIST OF CONTRACT LINE ITEMS

A. Contract Line Item No.0001:

1. Base Bid: Document, disassemble, mark, catalog and store existing ceilings of the first and second floor of the existing two-story porch. Shore existing the porch roof. Lift horizontal framing members back to original positions. Document, disassemble existing porch millwork, balustrades, column boxing, columns, and other historic wood elements.

Disassemble, mark, catalog, and store existing second floor porch framing members and remaining second floor porch decking, up to the underside of the second-floor ceiling framing. Document geometry and positions of masonry piers. Disassemble masonry piers down to the concrete slab level and salvage brick for reinstallation. Remove the concrete slab. Disassemble piers and masonry foundation wall between the piers down to the bottom of the foundations. Salvage and clean existing brick for reinstallation. Excavate for, and pour new foundations. Reconstruct new foundation/piers/masonry screen wall to the underside of the original first floor slab. Reconstruct pier up to the original height. Pour new concrete porch slab, tying into the piers. Install new tie rods and anchorages, tying slab to the original building. Reconstruct second floor porch framing, reusing existing members or replacing with new as described in the project documents. Install porch decking. Repair or reconstruct (as necessary) second floor porch ceiling framing and roof framing as shown in the project documents. Repair or replace in-kind as necessary, and reinstall columns from masonry piers up to the second-floor porch framing and from the second-floor porch deck up to the ceiling and the roof framing. Repair using epoxy or dutchman or replace, in-kind as necessary and reinstall millwork and balustrade as shown in the project documents. Stucco exposed faces of masonry piers and masonry foundation wall between piers to match existing.

a. This item consists of the disassembly and reconstruction of the front porch as described for Contract Line Item No. 0001 Base Bid.

b. Measurement for payment will be percentage complete.

2. Payment will be made at the contract lump sum price.

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082714 DEFINITION OF CONTRACT LINE ITEMS

B. Contract Line Item No. 0002 Base Bid: Tear off existing temporary roof-covering and remove existing Oriented Strand Board. Repair or replace as necessary, main roof framing as shown in the project documents. Repair or replace, in-kind, damaged roof deck boards. Rework framing on two low-sloped roof areas on the east and west ends of the front porch as shown in the project documents for positive drainage. Install new roof access hatch and tie off points.

Provide and install new natural slate roof. Install of new zinc-tin coated copper flat-seam metal roof on the low-sloped areas of the front porch, the low-sloped roof areas of the one-story West Porch, and the one-story addition located on the southeast corner of the building. Repair/repaint existing tern metal roof (Base Bid) or Replace existing tern metal roof with new zinc-tin coated copper flat-seam metal roof (Option A). Repair gutters (internal and half-round) and downspouts and install new half round gutters where shown. Repair cornice millwork at the roof.

a. This item consists of re-roofing the house (new slate roof, new flat seam metal roof, and repair of existing tern metal roof on south wing) and repair of half round and internal box gutters as described for Contract item No. 0002 Base Bid.

b. Measurement for payment will be percentage complete

c. Payment will be made at the contract lump sum price.

2. Option A – Add-Alternate No 1: Remove existing tern metal roof (roof areas 9 – 11) over the south wing addition and replace with new flat seam metal roof as specified.

a. This item consists of the repair and repainting of the existing tern metal roof over the south wing addition.

b. Measurement for payment will be percentage complete.

c. Payment will be made at the contract lump sum price.

END OF SECTION 01 27 00

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091015 PROJECT MANAGEMENT AND COORDINATION

SECTION 01 31 00 - PROJECT MANAGEMENT AND COORDINATION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative provisions for coordinating construction operations on Project including, but not limited to, the following:

1. Definitions

2. Construction Coordination.

3. Submittals

4. Coordination Drawings.

5. Requests for Information (RFIs).

6. NPS/DSC SharePoint Project Website. [Optional]

7. Project meetings.

8. Environmental Coordination.

9. Permits

B. Related Requirements:

1. Section 01 32 16 “Construction Schedule” for preparing and submitting Contractor’s construction schedule.

2. Section 01 77 00 “Closeout Procedures” for coordinating closeout of the Contract.

1.2 CONSTRUCTION COORDINATION

A. Coordination: Coordinate construction operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work. Coordinate construction operations, included in different Sections, which depend on each other for proper installation, connection, and operation.

1. Schedule construction operations in 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.

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

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

4. Where availability of space is limited, coordinate installation of different components to ensure maximum performance and accessibility for required maintenance, service, and repair of all components, including mechanical and electrical.

5. Properly plan construction operations to include permit requirements. Allow enough time to execute permit provisions to maintain work schedule, site visits, inspections, and reporting deadlines.

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B. Prepare memoranda for distribution to each party involved, outlining special procedures required for coordination. Include such items as required notices, reports, and list of attendees at meetings.

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

1. Preparation of Contractor's Construction Schedule.

2. Preparation of the Schedule of Values.

3. Installation and removal of temporary facilities and controls.

4. Delivery and processing of submittals.

5. Progress meetings.

6. Permit requirements.

7. Pre-installation conferences.

8. Project closeout activities.

9. Commissioning activities.

1.3 SUBMITTALS

A. Division 01 documents: The following items shall be submitted a minimum of one week prior to the Preconstruction Conference. Contracting Officer will notify Contractor of tentative date for the Pre-Construction Conference.

1. Letter designating Project Superintendent.

2. Construction Schedule.

3. A comprehensive breakdown of the Schedule of Values.

4. Accident Prevention Plan.

5. A list of Subcontractors for this project.

6. Written statements from subcontractors certifying compliance with applicable labor standard clauses.

7. Satisfactory evidence of liability insurance coverage and workman’s compensation for the

Contactor and all subcontractors.

8. Waste Management Plan.

9. Quality Control Plan.

10. Historic Preservation Treatment Plan.

11. List of Required Construction Permits. Include the following information for each permit:

a. Name of Permit.

b. The Agency(ies) with Jurisdiction issuing the permit.

c. Information required from the Government to complete the permit application.

B. All items listed must be provided to the Contracting Officer before the Pre-Construction Conference is held. If all of these documents have not been received one week prior to the scheduled Pre-Construction Conference date, the conference will be cancelled, Notice to Proceed will not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to Proceed has been issued.

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1.4 REQUESTS FOR INFORMATION (RFIs)

A. General: Immediately on discovery of the need for additional information or interpretation of the Contract Documents, Contractor shall prepare and submit an RFI utilizing the form created on the NPS/DSC SharePoint Project website.

1. CO will not respond to RFIs submitted by other entities controlled by Contractor.

2. Coordinate and submit RFIs in a prompt manner to avoid delays in the work.

B. Content of the RFI: Include a detailed, legible description of item needing information or interpretation and the following:

1. RFI number, numbered sequentially.

2. Date.

3. RFI subject.

4. Specification Section number and title and related paragraphs, as appropriate.

5. Drawing number and detail references, as appropriate.

6. Field dimensions and conditions, as appropriate.

7. Contractor's suggested resolution. If Contractor's suggested resolution impacts the

Contract Time or the Contract Sum, Contractor shall state impact in the RFI.

8. Contractor's signature.

9. Requested date for response.

10. Attachments: Include sketches, descriptions, measurements, photos, Product Data, Shop

Drawings, coordination drawings, and other information necessary to fully describe items needing interpretation.

a. Include dimensions, thicknesses, structural grid references, and details of affected materials, assemblies, and attachments on attached sketches.

C. RFI Form: Complete the RFI Form on the NPS/DSC SharePoint website as follows:

1. Enter the general information at the top of the form.

2. Under the “Action” section at the bottom of the form, select “Question” then select “CMR” in the drop-down of the “Send to” box.

3. Enter the details of the question and attach related documents.

4. Select “Submit Form” at the bottom of the page.

D. Contracting Officer’s Action: CO will review each RFI, determine action required, and respond.

CO will determine the critical nature of each RFI and issue a response accordingly.

1. The following are not considered to be RFIs and will receive no action:

a. Requests for approval of submittals.

b. Requests for approval of substitutions.

c. Requests for approval of Contractor's means and methods.

d. Requests for coordination information already indicated in the Contract Documents.

e. Requests for adjustments in the Contract Time or the Contract Sum.

f. Requests for interpretation of Architect's actions on submittals.

g. Incomplete RFIs or inaccurately prepared RFIs.

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2. CO's action may include a request for additional information, in which case time for response will date from time of receipt of additional information.

3. CO's action on RFIs may result in the need for a change to the Contract Time or the Contract Sum. All contract changes will be processed following the terms and conditions of the contract.

1.5 PROJECT WEB SITE

A. Use the NPS/DSC SharePoint Project website for communication throughout the contract period.

The NPS/DSC SharePoint Project website will be used for the following functions:

1. Project directory.

2. Project correspondence.

3. Meeting agendas and minutes.

4. Contract modifications forms and logs.

5. RFI form and processing.

6. Task and issue management.

7. Photo documentation.

8. Baseline schedule, schedule updates and calendar management.

9. Submittal form and processing.

10. Payment coordination documentation.

11. Drawing and specification document hosting, viewing, and updating.

12. Online document collaboration.

13. Reminder and tracking functions.

14. Archiving functions.

15. Notification of submittal and RFI statuses and current responsible party.

16. Permits and addendums

B. Some documents however are not suitable to be shared using the NPS/DSC SharePoint Project website. Documents containing Personal Identifying Information (PII) (i.e. certified payrolls) shall not be shared using the NPS/DSC SharePoint Project website and shall be coordinated with the SharePoint Project team as appropriate.

C. Submit to the CO a list of all employees who will need access to the website. The users will receive an invitation to register from the Department of Interior (DOI). Once the user is registered on the DOI website, they will be given access to the NPS/DSC SharePoint Project website. For login procedures and other SharePoint information, refer to the Workflows website at http://www.nps.gov/dscw/precon_spproj.htm.

D. All users will be required to have the following software packages:

1. Internet Explorer version 7 or later.

2. Adobe Acrobat Professional (Pro) version 9 or later

1.6 PROJECT MEETINGS

A. Preconstruction Conference: Before start of construction, Contracting Officer will arrange an on-site meeting with Contractor.