Attachment_1_Statement_of_Work_FY24_-_6-25-2024.pdf

FORT VANCOUVER

NATIONAL HISTORIC SITE

SELECTIVE REPLACEMENT OF PALISADE WALLS

(PMIS 239761)

NATIONAL PARK SERVICE

HISTORIC PRESERVATION TRAINING CENTER/

PACIFIC WEST REGION

June 25, 2024

FY24 Repair palisade (PMIS 239761) Fort Vancouver NHS Attachment 1: Statement of Work

FOVA – Palisade Wall Selected Replacement TOC - 2

TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS NO. OF PAGES

01 11 00 Summary of Work 01 27 00 Definition of Contract Line Items 01 32 16 Construction Schedule 01 35 23 Safety Requirements 01 40 00 Quality Requirements 01 77 00 Closeout Procedures

DIVISION 06 – WOOD

06 13 34 Lumber and Poles

FOVA – Palisade Wall Selected Replacement 01 11 00 - 3

SUMMARY OF WORK

SECTION 01 11 00

PART 1 – GENERAL

1.1 SUMMARY

A. This project is for the selected replacement of severely damaged pickets, king posts, walers identified in the attached drawings for the palisade walls at Fort Vancouver National Historic Site. Options include the replacement of the South Gate Posts, Gates, Also to be included as Options are: the selected replacement of additional King Posts, Pickets, South gate panels, gate posts (GPSW1, GPSW2, GPSE1, & GPSE2), and resetting one existing King Post.

B. The current palisade is a replica of the historic Hudson Bay fort. The current palisade was constructed in two phases: the north wall was constructed in 1966 using Douglas-fir poles and the remaining three sides in 1977 with Lodgepole pine. All timber received an initial treatment of pentachlorophenol with the bark on. Soon after, the bark fell off leaving the palisade with little protection. An inspection conducted in 1979 indicated widespread decay.

In 1982, the palisade was treated with Chloropicrin (trichloronitromethane) liquid poured into drilled holes near ground line at an angle. Since 1987, periodic inspections were performed by the Oregon State University Department of Wood Science and Engineering to assess the condition of and residual of chloropicrin in the pickets and king posts. In 1990, the pickets were treated with MITC-Fume (methylisothiocyanate) placed in the same angle holes that were drilled for the Chloropicrin. An external preservative paste was also applied to the below ground portion of the pickets. Again in 2013, MTIC-Fume treatment was once again applied to pickets and king posts. It is expected that there is residual MITC-Fume in the wood with large variations in concentration.

C. The king posts and pickets are typically 19 ft long and are buried 4 ft in an open-bottom concrete trench with compacted gravel backfill between the logs and the concrete trench.

D. Hardware (straps, hinges, connectors, etc.) shall be reused. Contractor shall furnish new fasteners.

E. Project will be constructed under a single contract.

1.2 PROJECT LOCATION

Fort Vancouver National Historic Site, Reconstructed Fort, 1001 E. 5th Street, Vancouver, Washington.

1.3 SUBMITTALS

A. Submit the following items with offer (see Section L of RFP):

Proposed poles and timber source/supplier;

Proposed preservative treatment plant name and location; and Draft proposed work plan which includes major tasks and durations as a minimum.

FOVA – Palisade Wall Selected Replacement 01 11 00 - 4

B. Post-award submission – At least seven days prior to pre-construction meeting, provide the following:

Pole and timber source/supplier;

Preservative treatment plant name and location;

Finalized work plan;

Other submittals as required in the individual technical specification sections.

1.4 CONTRACTOR’S USE OF SITE

A. General: Contractor shall have limited use of the site for construction operations. Confine construction operations to areas identified by the Contracting Officer or Representative

(COR).

B. Do not disturb portions of project site beyond designated areas.

C. Confine storage of materials to areas identified by the COR.

D. Preservation of Natural Features: Carefully supervise excavating, grading, filling, and other construction operations.

E. Construction Camp: Establishment of a camp within the park will not be permitted.

F. 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 the Contractor of liability for damage which may result from moving of equipment.

1.5 PUBLIC USE OF SITE

The fort will be open to the visiting public during contract performance. Contractor shall at all times conduct their operations to ensure the least inconvenience to the public.

1.6 WORK HOURS AND PERFORMANCE PERIOD

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. No work shall be performed on federal holidays or weekend unless previously approved by the COR in writing.

B. Performance period is 150 days after notice to proceed is issued. After mobilizing onsite, the Contractor shall proceed promptly and diligently through project completion.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION

FOVA – Palisade Wall Selected Replacement 01 27 00 - 5

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.

C. The quantity might be adjusted prior to award to meet available funding, in which case the number of pickets will be the reduced by eliminating work in panels where only a few pickets need replacement.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 LIST OF CONTRACT LINE ITEMS

A. Line Item No. 1 – Replace King Posts

This item includes all equipment, labor and material required to remove and dispose of the damaged king posts, furnishing and installing new king posts identified in Attachment 2 & 3.

B. Line Item No. 2 – Replace Walers

This item includes all equipment, labor and material required to remove and dispose of the damaged walers, furnishing and installing new walers identified in Attachment 2 & 3.

C. Line Item No.3 – Replace Pickets

This item includes all equipment, labor and material required to remove and dispose of the damaged pickets, furnishing and installing new pickets identified in Attachment 2 &

3. Note that there are two different styles of pickets (pencil top and flat top).

FOVA – Palisade Wall Selected Replacement 01 32 16 - 6

CONSTRUCTION SCHEDULE

SECTION 01 32 16

CONSTRUCTION SCHEDULE

PART 1 - GENERAL

1.1 SUMMARY

A. This Section consists of Construction Schedule requirements including but not limited to the following:

1. Construction Schedule Requirements.

2. Construction Schedule Updates.

B. Purpose: The purpose of the Construction Schedule is to ensure adequate planning, coordination, scheduling, and reporting during execution of the work by the Contractor.

The Construction Schedule will assist the Contractor and Contracting Officer in monitoring the progress of the work, evaluating proposed changes, and processing the Contractor's monthly progress payment.

1.2 SUBMITTALS

A. Construction Baseline Schedule: After contract award and before the Pre-Construction conference, submit a digital baseline schedule in Adobe PDF format showing schedule for the entire construction period.

B. Construction Schedule Updates: When work is delayed by two weeks from baseline schedule, provide updated schedule. Performance period is not automatically extended based on updated schedule. Contractor shall request in writing any time extension and show just cause to the Contracting Officer for consideration.

FOVA – Palisade Wall Selected Replacement 01 35 23 - 7

SAFETY REQUIREMENTS

SECTION 01 35 23

SAFETY REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

This section includes establishing an effective accident prevention program and providing a safe environment for all personnel and visitors.

Accident Prevention Plan: After contract award and before the Pre-Construction conference, submit for review an Accident Prevention Plan. The Contracting Officer and COR will review the proposed Plan. If the plan requires any revisions or corrections, the Contractor shall resubmit the Plan within 10 days. No progress payments will be made until the Plan is accepted.

1.3 QUALITY ASSURANCE

A. Comply with contract clauses entitled "Accident Prevention" and "Permits and Responsibilities". In case of conflicts between Federal, State, and local safety and health requirements, the most stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

B. Qualifications of Employees:

1. All employees must be physically qualified and able to perform their assigned duties in a safe manner.

2. Do not allow employees to perform work whose ability or alertness is impaired because of prescription or illegal drug use, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

3. Operators of vehicles, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be fully capable of operating such equipment. Provide operating instructions for all equipment. Newly hired operators shall be individually tested by an experienced operator or supervisor to determine if they are capable of safely operating equipment.

1.4 ACCIDENT REPORTING

Reportable Accidents: A project reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, fires, and property damage by accident in excess of $100. Notify Contracting Officer immediately in the event of a reportable accident. Within 7 days of a reportable accident, fill out and forward to Contracting Officer an Accident/Property Damage Report (Form CM-22). Form may be obtained from the Contracting Officer or COR.

FOVA – Palisade Wall Selected Replacement 01 35 23 - 8

1.5 ACCIDENT PREVENTION PLAN

The Plan shall be written to comply with OSHA and project requirements (a generic plan is not acceptable) including but not limited to the following:

1. Name of responsible supervisor to carry out the program.

2. Weekly and monthly safety meetings.

3. First aid procedures.

4. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to provide for property protection and safety of the public, National Park Service personnel, and Contractor's employees. Identify the work included under each phase.

5. Training, both initial and continuing.

6. Planning for possible emergency situations, such as floods, fires, cave-ins, slides, explosions, power outages, and wind storms. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

1.6 FIRST AID FACILITIES

Provide adequate facilities for the number of employees and the hazards associated with the types of ongoing construction work at the site.

1.7 PERSONNEL PROTECTIVE EQUIPMENT

Meet requirements of applicable ANSI standards.

PART 2 - EXECUTION

2.1 EMERGENCY INSTRUCTIONS

Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

2.2 FIRE AND LIFE SAFETY

A. Comply with the requirements of NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations).

B. Store hazardous materials in accordance with manufacturer’s and OSHA recommendations.

Maintain readily available, on site, MSDS for each chemical.

1. Immediately report all spills of hazardous materials to the park.

2. Maintain a spill emergency response kit.

2.3 PROTECTIVE EQUIPMENT

A. Provide appropriate personal protective equipment for the hazards encounter and in accordance with the preservative treatment manufacturer’s guidelines.

FOVA – Palisade Wall Selected Replacement 01 35 23 - 9

B. Inspect personal protective equipment daily and maintain in a serviceable condition. Clean, sanitize, and repair personal items, as appropriate, before issuing them to another individual.

C. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

2.4 SAFETY MEETINGS

A. As a minimum, conduct weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite.

B. Conduct monthly safety meetings for all levels of supervision. Meetings shall be attended by all contractors and subcontractors performing work on the site. Notify the Contracting Officer of meeting dates and times. These meetings shall be used to review the effectiveness of the Contractor's safety effort, to resolve current health and safety problems, to provide a forum for planning safe construction activities, and for updating the Accident Prevention Plan. The Contracting Officer will attend the meeting and enter the results of the meetings into the daily log.

2.5 HARD HATS AND PROTECTIVE EQUIPMENT AREAS

A. A hard hat area shall be designated by the Contractor. The hard hat area shall be posted by the Contractor in a manner satisfactory to the Contracting Officer.

B. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary personal protective equipment at all times.

2.6 TRAINING

A. First Aid: Provide adequate training to an adequate number of personnel to ensure prompt and efficient first aid.

B. Hazardous Material: Train and instruct each employee exposed to hazardous material in safe and approved methods of handling and storage. Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury.

FOVA – Palisade Wall Selected Replacement 01 40 00 - 10

QUALITY REQUIREMENTS

SECTION 01 40 00

QUALITY REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for quality assurance and quality control.

B. Testing and inspecting services are required to verify compliance with requirements specified or indicated. These services do not relieve Contractor of responsibility for compliance with the Contract Document requirements. The quality of all work shall be the responsibility of the Contractor.

1.2 CONFLICTING REQUIREMENTS

A. Reference Standards: If compliance with two or more standards is specified and the standards establish different or conflicting requirements for minimum quality levels, comply with the most stringent requirement. Refer uncertainties and requirements that are different, but apparently equal, to Contracting Officer for a decision before proceeding.

B. Minimum Quality Levels: The quality level shown or specified shall be the minimum provided or performed. The actual installation may comply exactly with the minimum quality specified, or it may exceed the minimum within reasonable limits.

1.3 SUBMITTALS

A. Contractor's Quality Control Daily Reports: Submit showing all inspections and tests on the first workday following the date covered by the report. Quality Control Supervisor shall utilize the forms attached at the end of this Section.

B. Test Reports

1. Test reports shall be completed by the person performing the test.

2. Submit Daily Test Information Sheets with Quality Control Daily Reports.

3. Submit failing test results and proposed remedial actions within four hours of noted deficiency.

4. Submit complete test results no later than one calendar day after the test was performed.

1.4 QUALITY ASSURANCE

A. Contractors Quality Control Staff:

1. The Contractor's Quality Control Supervisor may also perform other duties.

2. The Contractor's designated Quality Control Supervisor shall be on the project site whenever contract work is in progress.

FOVA – Palisade Wall Selected Replacement 01 40 00 - 11

1.5 QUALITY CONTROL

A. The Contractor is responsible for all testing and inspections. Inspect and test work as needed to ensure that the quality of materials, workmanship, construction, finish, and functional performance are in compliance with applicable specifications and drawings.

1. Engage a qualified testing agency to perform these quality-control services.

2. Submit the appropriate report, for each quality-control service.

3. Testing and inspecting requested by Contractor and not required by the Contract

Documents are Contractor's responsibility.

4. The Contracting Officer may designate test locations.

B. Re-testing/Re-inspecting: Regardless of whether original tests or inspections were Contractor's responsibility, provide quality-control services, including retesting and re-inspecting, for construction that replaced work that failed to comply with the Contract Documents.

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

PART 2 - PRODUCTS

2.1 QUALITY CONTROL PLAN

A. The Quality Control Plan shall include:

1. A list of personnel responsible for quality control and assigned duties. Include each person's qualifications.

2. A copy of a letter of direction to the Contractor's Quality Control Supervisor outlining assigned duties.

3. Names, qualifications, and descriptions of laboratories to perform sampling and testing, and samples of proposed report forms.

4. Methods of performing, documenting, and enforcing quality control of all work.

5. Methods of monitoring and controlling environmental pollution and contamination as required by regulations and laws.

PART 3 - EXECUTION

3.1 DOCUMENTATION

A. Prepare Quality Control Daily Reports (QCDR) and Daily Test Report Information Sheets (DTR) tests using attached forms. Contracting Officer will provide forms in Word on request.

B. Submit QCDRs to the Contracting Officer weekly during demolition and/or construction phases.

FOVA – Palisade Wall Selected Replacement 01 40 00 - 12

C. Submit DTRs to the Contracting Officer within five days of test.

D. Quality Control Daily Reports may not be substituted for other written reports required under clauses of the contract, such as Disputes, Differing Site Conditions, or Changes.

3.2 ENFORCEMENT

The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by the quality control staff or the Contracting Officer.

3.3 REPAIR AND PROTECTION

A. General: On completion of testing, inspecting, sample taking, and similar services, repair damaged construction and restore substrates and finishes. Protect construction exposed by or for quality-control service activities.

B. Repair and protection are Contractor's responsibility, regardless of the assignment of responsibility for quality-control services.

FOVA – Palisade Wall Selected Replacement 01 40 00 - 13

CONTRACTOR'S QUALITY CONTROL DAILY REPORT

REPORT NO. _________ SHEET 1 OF _________

PROJECT

CONTRACT NO.

DATE

PARK

CONTRACTOR'S REPRESENTATIVE ON THE JOB

WEATHER

(Rain, Snow, Cloudy, Windy, etc.)

RAINFALL

Inches

TEMPERATURE

GROUND CONDITIONS

(Dry, Damp, Wet, Frozen, etc.)

MAX.

MIN.

1. PRIME CONTRACTOR

NO. EMPLOYEES BY JOB CATEGORIES Hours

HEAVY EQUIPMENT

ON JOB

NO.

UNITS

HRS. WORKING

YES NO Comments

WORK PERFORMED BY PRIME CONTRACTOR:

MATERIALS DELIVERED OFFICIAL VISITORS TO SITE

2A. SUBCONTRACTOR, _____________________________________________:

(If more than one subcontractor use copies of following page.)

NO. EMPLOYEES BY JOB CATEGORIES Hours

HEAVY EQUIPMENT

ON JOB

NO.

UNITS

WORK PERFORMED BY SUBCONTRACTOR:

3. SPECIFIC INSPECTIONS: (Inspections performed, results, and corrective actions)

4. TESTING: 1 Check if any testing was performed today. (Complete and attach Test Report Information Sheets.)

Type and Location of Testing: ____________________________________________________________________________________

5. VERBAL INSTRUCTION RECEIVED FROM GOVERNMENT ON CONSTRUCTION DEFICIENCIES OR RE-TESTING

REQUIRED:

6. REMARKS:

7. CERTIFICATION:

I certify that the above report is complete and correct and that I, or my authorized representative, have inspected all work performed this day by the prime contractor and each subcontractor and determined that all materials, equipment, and workmanship are in strict compliance with the plans and specifications except as may be noted above.

Contractor's Quality Control Representative

FOVA – Palisade Wall Selected Replacement 01 40 00 - 14

SUBCONTRACTOR WORK CONTINUED:

CONTRACT NO.

REPORT NO. _______

SHEET ____ OF _____

2B SUBCONTRACTOR,

NO. EMPLOYEES BY JOB CATEGORIES Hours

HEAVY EQUIPMENT

ON JOB

NO.

UNITS

2C SUBCONTRACTOR,

HEAVY EQUIPMENT

ON JOB

NO.

UNITS

2D SUBCONTRACTOR,

HEAVY EQUIPMENT

ON JOB

NO.

UNITS

2E SUBCONTRACTOR,

HEAVY EQUIPMENT

ON JOB

NO.

UNITS

FOVA – Palisade Wall Selected Replacement 01 40 00 - 15

DAILY TEST REPORT INFORMATION SHEET

CONTRACT NO. ___________________________ REPORT NO. _________ SHEET 1 OF _________

1. Individual Making Inspection or Test:

2. Testing Laboratory; Name: Phone #:

Address:

3. Description of Work and Test Method:

4. Location of Samples and Tests or Inspections:

5. Specification Section:

6. Inspection or Test Data:

7. Test Results and Interpretations of Test Results:

8. Comments or Professional Opinion About Compliance of Inspected Work or Tested Work with contract Document Requirements:

9. Recommendations:

10. Corrective Actions Taken:

CERTIFICATION:

I certify that the above testing report is complete and correct and that all testing performed this day for this contract is in strict compliance with the plans and specifications except as noted above.

Signature of Inspector

FY15 Repair palisade (PMIS 159364) Fort Vancouver NHS

FOVA – Palisade Wall Selected Replacement 01 77 00 - 16

CLOSEOUT PROCEDURES

SECTION 01 77 00

CLOSEOUT PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

This Section includes administrative and procedural requirements for contract closeout, including, but not limited to, the following:

1. Substantial Completion and Final Inspection.

2. Final Acceptance of the Work.

1.2 PROJECT RECORD DRAWINGS

A. Maintain one complete full-size set of contract drawings and one full-size set of vendor-supplied drawings. Clearly mark changes, deletions, and additions using National Park Service drafting standards to show actual construction conditions. Show additions in red, deletions in green and special instructions in blue.

B. Keep record drawings current. Make record drawings available to the Contracting Officer for inspection at the time of monthly progress payment requests. If project record drawings are not current, the Contracting Officer may retain an appropriate amount of the progress payment.

C. On completion of the total project, submit complete record drawings. Include all shop drawings, sketches, and additional drawings that are to be included in the final set, with clear instructions showing the location of these drawings.

1.3 CLOSEOUT SUBMITTALS

Submit the following before requesting final inspection:

1. Submit specific warranties, guarantees, workmanship bonds, final certifications, and similar documents.

2. Submit Project Record Documents, final completion construction digital images recorded on CD-R or DVD-R with index and descriptions, and similar final record information.

1.4 SUBSTANTIAL COMPLETION AND FINAL INSPECTION

A. When project, or designated portion of project, is substantially complete, request in writing a final inspection. Upon receipt of written request that project is substantially complete, the Contracting Officer will proceed with inspection within 10 days of receipt of request or will advise the Contractor of items that prevent the project from being designated as substantially complete.

B. If, following final inspection, the work is determined to be substantially complete, Contracting Officer will prepare a Punch List to be corrected before final acceptance and issue a Letter of Substantial Completion. Contractor shall complete the work described on the Punch List within ten (10) calendar days, as weather permits. If the Contractor fails to complete the

FOVA – Palisade Wall Selected Replacement 01 77 00 - 17

CLOSEOUT PROCEDURES

work within this time frame, the Contracting Officer may either replace or correct the work with an appropriate reduction in the contract price or charge for re-inspection costs in accordance with the Inspection of Construction clause of the contract.

C. If, following final inspection, the work is not determined to be substantially complete;

Contracting Officer will notify Contractor in writing. After completing work, Contractor shall request a new final inspection. All re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction clause of the contract.

1.5 FINAL ACCEPTANCE OF THE WORK

After all deficiencies have been corrected, the Contracting Officer will issue a Letter of Final Acceptance.

FOVA – Palisade Wall Selected Replacement 06 13 34 – 18

LUMBER AND POLES

SECTION 06 13 34

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN WOOD PROTECTION ASSOCIATION (AWPA)

AWPA HSC-11 Standard for Hydrocarbon solvent, Type C

AWPA M4(2011) Standard for the Care of Preservative-Treated Wood Products

AWPA P5(2014) Standard for Waterborne Preservatives

AWPA P35-10 Standard for Pentachlorophenol

AWPA U1(2014) Use Category System: User Specification for Treated Wood

ASTM INTERNATIONAL (ASTM)

ASTM A123/A123M(2013) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A153/A153M(2009) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A307(2014) Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI O5.1 Wood Poles – Specifications and Dimensions

B. Submit drawings of treated timber showing dimensions of cut, framed, and bored timbers.

C. Wood species certification – Coastal Douglas-fir.

D. Moisture content (MC) testing/certification of pretreatment MC

E. Preservative inspection and retention certification.

F. MSDS

FOVA – Palisade Wall Selected Replacement 06 13 34 – 19

1.3 DELIVERY AND STORAGE

Store material at least 12 inches aboveground in a manner that will prevent warping and allow shedding of water. Keep ground under and within 5 feet of such piles free of weeds, rubbish, and combustible materials. Protect materials from weather.

Handle treated lumber with ropes or chain slings without dropping, breaking outer fibers, bruising, or penetrating surface with tools. Protect timber and hardware from damage.

1.4 QUALITY ASSURANCE

A. MSDS

Provide Material Safety Data Sheets (MSDS) associated with timber pile preservative treatment.

Contractor shall comply with all safety precautions indicated on MSDSs.

B. Delivery Inspection List

Field inspect and submit a verification list of each strapped bundle of treated lumber indicating the wording and lettering of the quality control markings, the species and the condition of the wood.

Inspect all preservative-treated wood visually to ensure there are no excessive residual materials or preservative deposits. Material shall be clean and dry or it will be rejected due to environmental concerns. Damaged members shall be rejected.

PART 2 PRODUCTS

2.1 WOOD POLES (KING POSTS)

Poles shall be coastal Douglas-fir, meeting ANSI O5.1 and AWPA UC 4C, air-seasoned or kiln dry, less than 25% moisture content before treatment, 14 to 16 inches in diameter at the small end and 19 ft total length, bore-through as indicated on drawings.

2.2 WOOD POLES (PICKETS)

Poles shall be coastal Douglas-fir, meeting AWPA UC 4C, air-seasoned or kiln dry, less than 25% moisture content before treatment, 8 to 10 inches in diameter at the small end and 19 ft total length.

2.3 LUMBER (WALERS)

Standard rough-sawn 6x8, No. 2 and Better DF, seasoned or kiln dry, less than 25% moisture content before treatment.

2.4 PRESERVATIVE TREATMENT

a) Pentachlorophenol type C per HSC-11, 0.60 pcf retention per AWPA UC4C.

b) Fabricate poles and lumber before preservative treatment.

c) Incise walers before treatment.

2.5 FASTENERS

FOVA – Palisade Wall Selected Replacement 06 13 34 – 20

Nuts and washers, timber connectors, drift pins, dowels, nails, screws, spikes, and other fastenings:

hot-dipped galvanize meeting ASTM A153.

2.6 FIELD TREATMENT TOUCH-UP

Two percent (2%) copper naphthanate.

2.7 GRAVEL BACKFILL

¾ inch minus crushed gravel.

PART 3 EXECUTION

3.1 GENERAL

Cut, bevel, and/or notch timbers prior to pressure treatment.

3.2 FRAMING

a) Cut and frame lumber and poles so that joints will fit over contact surface.

b) Secure lumber and poles in alignment. Provide temporary bracing of adjacent members as required to prevent shifting.

c) Open joints are unacceptable.

d) Shimming is not allowed.

e) Bore holes for drift pins and dowels with a bit 1/16 inch less in diameter than the pin or dowel.

f) Bore holes for lag screws in two parts.

g) Make lead hole for shank the same diameter as shank. Make lead hole for the threaded portion approximately two-thirds of the shank diameter.

3.3 FIELD TREATMENT

Minimize field cuts.

Apply two coats of field treatment in accordance with AWPA M4 on any field cut.