Attachment_09_MIMA_APP-H_Cultural_Landscape_Treatment_Procedures.docx

SECTION 01 35 92 - CULTURAL LANDSCAPE TREATMENT PROCEDURES

PART 1 GENERAL

1.1 SUMMARY

A. This Section includes special procedures for the treatment and protection of historic fabric within the Cultural Landscape of this Project including, but not limited to, the following:

1. Special requirements due to historic nature of site.

2. Definitions of words and phrase pertaining to historic preservation used throughout the Contract Documents.

3. Cultural Landscape Treatment Plan requirements.

4. Protection and monitoring of cultural landscapes.

5. Wetland Protection requirements per jurisdiction

6. Protection of Cultural Landscape features.

7. Storage and protection of historic materials.

8. Protection during application of chemicals.

1.2 RELATED DOCUMENTS AND REFERENCES

A. Related Documents:

1. Drawings and general provisions of contract including general and supplementary conditions and Division I specifications apply to work of this section.

2. Section 01 32 33 “Photographic Documentation for Historic Preservation Projects”

3. Section 01 35 13 “Archeological Protection”

4. Section 01 56 39 “Tree and Landscape Protection” B. References: The following specifications and standards of the organizations and documents listed in this paragraph form a part of the specification to the extent required by the references thereto. In the event that the requirements of the following referenced standards and specification conflict with this specification section the requirements of this specification shall prevail. In the event that the requirements of any of the following referenced standards and specifications conflict with each other the more stringent requirement shall prevail.

1. ANSI A 300 (Part 5) – Standard Practices for Tree, Shrub and other Woody Plant Maintenance, most current editions.

2. Pruning practices shall conform with recommendations “Structural Pruning: A Guide for The Green Industry”; Published by Urban Tree Foundation, Visalia, California; most current edition, and current International Society of Arboriculture BMPs for pruning of plant materials.

3. Glossary of Arboricultural Terms, International Society of Arboriculture, Champaign Il, most current edition.

1.3 INTENT

A. Historic Nature of the Work Site: The Contractor shall note the historical significance of the site at which the Work will be performed.

B. Due to the historic nature of the site, certain aspects of the work of the Contract will carried out with the materials and/or methods commonplace not commonplace in the modern construction industry. Contractor may be required to match existing conditions to maintain appearance and character of existing materials.

C. It is incumbent upon the Contractor to furnish mechanics who can and will execute first-class workmanship in the materials and methods specified, and who will take the necessary precautions to protect the elements of this historic site not scheduled to receive Work under this Contract.

D. It is important for the Contractor to provide protection for historical assets, landscape areas, and trees within the construction zone.

1.4 DEFINITIONS

A. "Historic Fabric”: all existing materials and features that define the historic character of the project site and/or structure.

B. “Preservation": To apply measures necessary to sustain the existing form, integrity, and authenticity of a historic property. Work may include preliminary measures to protect and stabilize the property.

C. "Rehabilitation": To make possible a compatible use for a property through repair, alterations, and additions while preserving those portions or features that convey its historical, cultural, or architectural values.

D. "Restoration": To accurately return the form, features, and character of a property to its appearance at a particular period of time by means of the removal of features from other periods in its history and the repair and reconstruction of missing and deteriorated features from the restoration period.

E. "Reconstruction": To reproduce in the exact form and detail a building, structure, landscape, or artifact as it appeared at a specific period in time. Reconstructed elements do not possess historic integrity in their own right since it is not original fabric.

F. "Stabilize": To apply measures designed to reestablish a weather-resistant enclosure and the structural reinforcement of an item or portion of the building while maintaining the essential form as it exists at present. This level of intervention is aimed at retarding or arresting adverse impacts to structures. Within landscapes, this refers to the application of pruning, pest control, planting, and site amendment to retard the loss of materials.

G. "Protect and Maintain": To remove deteriorating corrosion, reapply protective coatings, and install protective measures such as temporary guards; to provide the least degree of intervention.

H. "Repair": To stabilize, consolidate, or conserve; to retain existing materials and features while employing as little new material as possible. Repair includes patching, piecing-in, splicing, consolidating, or otherwise reinforcing or upgrading materials. Within restoration, repair also includes limited replacement in kind, rehabilitation, and reconstruction, with compatible substitute materials for deteriorated or missing parts of features when there are surviving prototypes.

I. "Replace": To duplicate in its entirety a historic element or feature by matching its historic pattern, detail and appearance. . Replacement is justified when original or historic elements are damaged beyond repair or are missing. Replacement methods include the following conditions:

1. “Replacement with Original or Historic Fabric”: Includes fabric salvaged from other locations or projects having identical architectural qualities. It means duplication of appearance using identical material possessing historical significance. When replacing plant materials, this means replacement through careful cultivation of cloned material from original plant.

2. “Replacement with New Materials”: Includes replacement with new material of like kind (custom fabricated of manufactured) that is currently in production. It means duplication of appearance using like material. When replacing plant materials, this refers to replacement with a new, live specimen or the same species obtained through the nursery trade.

3. “Replacement with Substitute Materials”: Includes replacement with a compatible substitute that is frequently contemporary and unlike the historic fabric. It means duplication of appearance using modern (non-traditional) material Use of substitute materials is not approved unless matching materials are not available. When replacing plant materials, this refers to replacement with approved substitute variety with similar characteristics to the original plant material.

J. "Remove": Means to demolish or detach items from existing construction and legally dispose of them off-site unless indicated to be removed and salvaged or removed and reinstalled. For plant materials, this means removal of the original plant in a method that eliminates as much of the plant as possible without damage to surrounding plants, structures, or other assets.

K. "Remove and Salvage": Means to detach items from existing construction and deliver them to the NPS.

L. "Remove and Reinstall": Means to detach items from existing construction, repair and prepare them for reuse, and reinstall them where indicated. For plant materials, this means harvesting of plant, storage and care for plant while out of the ground, and reinstallation of plant in a method which will insure future survival and vigor.

M. "Existing to Remain" or "Retain": Existing items of construction that are not to be removed and that are not otherwise indicated to be removed and salvaged, or removed and reinstalled. Existing items to remain shall be protected throughout the Work of this Project. For plant materials, this includes protection of existing plant materials in place.

N. "Material in Kind": Material that closely matches existing materials, through comparison of qualities and characteristics such as species, size, habit, form, foliage, bloom, fruit, and fall color.

1.5 SUBMITTALS

A. Cultural Landscape Treatment Plan: See Paragraph 1.6, A below for requirements. Submit written plan to Government as part of Division 1 submittals prior to Pre-construction Conference.

1. Plan shall be written on Contractor’s letterhead.

2. Government will review plan and make comments.

3. Contractor shall revise plan as many times as required to make it complete and acceptable to the Government at no additional cost to the Government.

B. Alternative Methods and Materials: If alternative methods and materials than those indicated are proposed for any phase of work, provide a written description including evidence of successful use on other, comparable historical projects, and program of testing to demonstrate effectiveness for use on this Project.

1.6 QUALITY ASSURANCE

A. Cultural Landscape Treatment Plan: Submit a written plan for each phase or process of the Work describing in detail materials, methods, and equipment to be used. Plan shall be project specific. The purpose of the Cultural Landscape Treatment Plan is to clearly demonstrate the Contractor’s understanding of both the process for implementing the specified work and the requirements for protecting the historic materials to remain, surrounding natural and cultural elements, and the public and government personnel throughout the course of the Work. Plan shall address, but may not be limited to, the following:

1. How adjacent historic materials not scheduled for Work under this Contract will be protected throughout the process of the Work.

a. Location of key elements within or adjacent to work zone which should be protected during construction.

b. How elements will be protected.

c. When protective measures will be removed.

2. How areas of Work will be accessed without damaging historic materials or park environs.

a. How materials will be conveyed to work areas.

b. How adjacent landscapes and structures will be protected during the movement of these materials.

c. When protective measures will be utilized

d. When protective measures will be removed from the landscape.

3. How surrounding landscape will be protected during demolition. This includes, but it not limited to, historic stone walls, landscape beds, trees, and lawn.

a. Where and what type of tree protection will be used.

b. Where and what type protection will be used.

c. What procedures will be implemented in the case of damage to landscape.

d. Timeframe for removal of protective measures.

4. How surrounding landscape will be protected during construction. This includes, but it not limited to, historic stone walls, landscape beds, trees, and lawn.

a. Where and what type of tree protection will be used.

b. Where and what type protection will be used.

c. What procedures will be implemented in the case of damage to landscape.

d. Timeframe for removal of protective measures.

5. If historic materials are to be removed from site during construction activity, how they will be protected during transportation and while off site.

6. If materials are to be salvaged for reuse, identify methods of evaluation, cleaning, storage, and preparation.

B. Photographs or Videotape: See Division 01 Section “Photographic Documentation for Historic Preservation Projects” for requirements.

C. Wetland protection coordination: Coordinate protective measures required within Wetland Boundary and Buffer with authority having jurisdiction.

1. Refer to attached Orders of Conditions prepared by jurisdictions with authority over wetland conservation.

2. Prior to construction and per Order of Conditions, schedule a meeting with Conservation Commission staff from surrounding Towns to review site, Orders of Conditions, and proposed phasing and construction sequence.

PART 2 PRODUCTS [Not Used]

PART 3 EXECUTION

3.1 PROTECTION, GENERAL

A. Protect existing materials during installation of temporary protection and construction. Do not deface or remove existing materials not scheduled for work under this contract.

B. Attachments of temporary protection to existing construction shall be approved by Government prior to installation.

C. Unanticipated disturbance shall be approved by Government prior to commencement.

D. Protect landscape and paving adjacent to or within work areas.

3.2 PROTECTION AND MONITORING OF CULTURAL LANDSCAPE

A. All work of this contract is within a designated Cultural Landscape. The principle aim of work within this landscape is the preservation of integrity of the assets within this landscape.

1. Retain as much existing material as possible; repair and consolidate rather than replace.

2. Only the gentlest methods available to achieve the necessary results shall be employed.

3. Use traditional replacement materials and techniques wherever possible.

4. Record the existing condition before commencing with repair work; document with preconstruction photos, sketches and field notes. Record repair work during construction with periodic construction photos and daily inspection reporting. Photo documentation is specified in Division 1 Section "Photo Documentation for Historic Preservation Projects".

5. Notify Government of visible changes in the integrity of plants, materials, components, or structures when uncovered during construction activity.

B. Plant Materials shall be protected per Section 01 56 39 “Tree and Plant Protection”, and site restored to same or improved condition per Section 32 01 90.36.

C. Do not proceed with the work in question until so directed by Government.

D. Where Work requires existing historic assets to be removed, cleaned, and reinstalled, perform these operations without damage to the material itself, to adjacent materials, or to the historically significant substrates.

3.3 PROTECTION OF HISTORIC SITE FEATURES

A. Protect Monuments, plaques, and signage from damage during construction.

1. Where necessary, provide protective fencing and informational signage to ensure protection of foundations, plantings, or accessories surrounding feature.

2. Repair of damage shall be the responsibility of the Contractor.

B. Protect sidewalks, trails, and driveways from damage during movement of equipment and materials.

1. In the event of closure, provide adequate barriers and signage to ensure the safety of visitors and park staff.

2. Damage shall be repaired at the expense of the Contractor.

C. Protect stone walls and retaining walls during construction.

1. Where necessary, provide fencing and informational signage to define the limits of protection and potential for fall.

2. Do not utilize stone stairs for movement of materials without approval of Contracting officer.

3. Do not park equipment or store heavy materials on retained slope of wall.

4. Do not remove any stones from the construction site. If stones are displaced, notify Contracting Officer for appropriate storage and treatment.

5. Damage shall be repaired at the expense of the Contractor.

3.4 STORAGE AND PROTECTION OF REMOVED MATERIALS

A. Do not dispose of items removed from existing construction without prior written consent of Government.

B. Note location, orientation, and condition of items to be removed. If item is one of a set or a multiple, identify removed items with an inconspicuous mark indicating their original location and/or configuration so that they can be returned in the appropriate location.

C. Removed and Salvaged Historic Materials:

D. Removed and Reinstalled Historic Materials:

E. Existing Historic Materials to Remain: Protect construction indicated to remain against damage and soiling during construction.

F. Remove plants or trees flagged for reinstallation utilizing best practices for transplant of plant materials.

1. Retain as much of the plant structure as possible.

2. When necessary, utilize an air spade to remove soil from the root structure to allow for root pruning before storage.

3. Store in temporary facility in a manner which provides protection for plant materials and necessary environmental conditions to ensure health and stability of plant.

4. Re-install plant materials in manner which insures future health and vigor.

G. Storage and Protection: When removed from their existing location, store historic materials where they are protected from wetting by rain, snow, or ground water, and temperature variations. Secure stored materials to protect from theft.

3.2 PROTECTION DURING APPLICATION OF CHEMICALS

A. Comply with all applicable manufacturers’ recommendations.

B. Application of pesticides shall only be performed by a professional licensed in the State of Massachusetts.

C. Do not use chemicals during winds of sufficient force to spread chemicals to unprotected surfaces or plants.

END OF SECTION 01 35 92