Attchmt 5_Specifications.pdf

Solictation (RFP) No. 140P8320R0001 – Attachment 5, Specifications

Hurricane Hill Trail Asphalt Paving, OLYM

OLYMPIC NATIONAL PARK

CONSTRUCTION PROJECT

SPECIFICATIONS

NATIONAL PARK SERVICE

PACIFIC WEST REGION

December 2018

OLYM – 185264 TOC - 1

TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS NO. OF PAGES

01 11 00 Summary of Work

01 11 40 Work Restrictions

01 27 00 Definition of Contract Price Items

01 31 00 Project Management & Coordination

01 33 23 Submittal Procedures

01 35 23 Safety Requirements

01 50 00 Temporary Facilities & Controls

01 73 40 Execution

01 74 19 Construction Waste Management & Disposal

01 77 00 Closeout Procedures

DIVISION 31 – EARTHWORK

31 05 16 Aggregate Base Course

31 23 33.10 Restoration of Surfaces

31 25 00 Soil Erosion & Sediment Control

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 12 16 Asphalt Concrete Paving

DIVISION 01

GENERAL REQUIREMENTS

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SUMMERY OF WORK

SECTION 01 11 00

SUMMARY OF WORK

PART 1 – GENERAL

1.1 WORK COVERED BY CONTRACT DOCUMENTS

Project Location: This project is located in Olympic National Park about 18 miles from Port Angeles, WA at the end of Hurricane Ridge Road. The Hurricane Hill Trail is a popular trail accessed from the Hurricane Hill Picnic Area. It is heavily used in the snow free periods from mid-July to October.

Average annual snow fall is over 500 inches with ground accumulation of up to 150 inches.

A. The Work consists of the following:

1. The Work includes placement of new 2” thick asphalt concrete paving over Park prepared substrate. Park will provide final grading four weeks (or sooner) prior to NTP.

Contractor is responsible for any touch up grading that may be required due to traffic and weather impacts in the interim following Park grading.

1.2 GOVERNMENT-FURNISHED MATERIALS

A. Government-Furnished Products:

1. Government is to furnish finished graded compacted aggregate surface ready to receive new Asphalt Concrete pavement.

1.3 CONTRACTOR USE OF SITE

A. General: Contractor shall have sole access to the trail for construction operations during the construction period. During contract period, this area will be completely closed to the public.

Closure will be 1.5 miles away near the Visitor Center.

B. Storage of Materials:

1. Confine storage of materials to areas as determined by the Contracting Officer.

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.

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SUMMERY OF WORK

D. Driveways and Entrances: Keep driveways, pathways, trails and entrances serving premises clear and available to Government, government 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. 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 Contractor of liability for damage which may result from moving of equipment.

1.4 WORK RESTRICTIONS

A. On-Site Work Hours: Work shall be as determined by the contractor. Work may occur Monday thru Thursday only. Friday work may be considered if it allows completion of the project.

1. Work shall occur between July 6, 2020 and September 3, 2020.

END OF SECTION

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WORK RESTRICTIONS

SECTION 01 11 40

WORK RESTRICTIONS

1.1 PARK REGULATIONS

A. The Contractor must comply with Park rules and regulations including:

1. Ensure personnel (contractors or subcontractors) working in the Park become familiar with and obey all Park regulations, wear hard hats in designated areas, and do not enter any restricted areas unless required to do so and until cleared for such entry.

2. Food and food trash must be stored in animal proof containers or inside vehicles.

3. Speed limits and stop signs at Heart of the Hills Entrance Station.

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DEFINITION OF CONCRETE PRICE ITEMS

SECTION 01 27 00

DEFINITION OF CONTRACT PRICE ITEMS

1.1 LIST OF PRICE SCHEDULE LINE ITEMS

A. Price Schedule Line item No.1 – Asphalt Trail: Station 23+50.00 to Station 86+25.78.

1. The price of this line item shall consist of all work between Stations 23+50.00 and

86+25.78. This includes all Division requirements, mobilization and demobilization, any necessary touch-up grading, and the installation of AC Pavement with minimum thickness of two (2) inches between the designated stations.

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

B. Price Schedule Line Item No. 2 – Asphalt Trail: Station 0+00 to Station 23+50.00

1. This price of this line item shall consist of all work between Stations 0+00 and 23+50.00.

This includes all Division requirements, mobilization and demobilization, any necessary touch-up grading, and the installation of AC Pavement with minimum thickness of two

(2) inches between the designated stations.

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

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PROJECT MANAGEMENT & COORDINATION

SECTION 01 31 00

1.1 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 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.

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

1.2 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 designated by the Contracting officer.

1. Contracting Officer 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.

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

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

7. Contractor’s signature.

8. Requested date for response.

9. 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, and details of affected materials, assemblies, and attachments on attached sketches.

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

2. Contracting Officer'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. Contracting Officer'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.

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Project:

Contract No.: Date:

To: Lisa Turecek, COR cc: Phaedra Fuller, CO

From:

Subject:

Please provide the following information or clarification:

Response required by ___\____\____

Date:

To:

From: Lisa Turecek, COR

Subject:

REQUEST FOR INFORMATION #

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SUBMITTAL PROCEDURES

SECTION 01 33 23

PART 1 - GENERAL

1.1 GENERAL SUBMITTAL PROCEDURES

A. Electronic Submittals: Identify and incorporate information in each electronic submittal file as follows:

1. CM-16E Transmittal Form: All submittals shall be transmitted using National Park

Service form CM-16E form, attached to the end of this specification section. No action will be taken on a submittal item unless accompanied by the CM-16E transmittal form.

Complete the general information at the top of the form.

a. Provide all required information based on the submittal type

b. Attach all related documents.

c. Sign the CM-16E form in the contractor section at the bottom of the form.

2. Physical samples: Complete the CM-16E form as outlined above and deliver the physical sample to the CO (or designee) on site for processing. All comments and actions will be documented on the CM-16E form.

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SAFETY REQUIREMENTS

SECTION 01 35 23

1.1 SUMMARY

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

1.2 SUBMITTALS

A. Accident Prevention Plan: After contract award and before the Pre-Construction conference, submit for review, an Accident Prevention Plan. The Contracting Officer will review the proposed Plan. If the plan requires any revisions or corrections, the Contractor shall resubmit the Plan within ten (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.

1.4 ACCIDENT REPORTING

A. 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 one hundred dollars ($100). Notify Contracting Officer immediately in the event of a reportable accident. Within seven (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.

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PART 2 - PRODUCTS

2.1 ACCIDENT PREVENTION PLAN

A. 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.

2.2 FIRST AID FACILITIES

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

2.3 PERSONNEL PROTECTIVE EQUIPMENT

A. Meet requirements of applicable ANSI standards.

PART 3 - EXECUTION

3.1 EMERGENCY INSTRUCTIONS

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

3.2 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.

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3.3 PROTECTIVE EQUIPMENT

A. 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.

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

3.4 SAFETY MEETINGS

A. As a minimum, conduct weekly fifteen (15) minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite. Topics need to coincide with work scheduled for the following week. Document and submit meeting minutes to the Contracting Officer within one (1) day after the meeting.

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 Officers Representative will attend the meeting and enter the results of the meetings into the daily log.

3.5 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. As a minimum, provide six (6) six hard hats for use by visitors.

3.6 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.

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TEMPORARY FACILITIES & CONTROLS

SECTION 01 50 00

1.1 SUMMARY

A. Water Service: Water from existing water system at Park Headquarters in Port Angeles is available for use without metering and without payment of use charges. Up to 3000 gallons a day are also available from Hurricane Ridge Water System. The Contractor shall provide connections and extensions of water services as required for construction operations and ensure proper backflow prevention.

PART 2 – PRODUCTS

2.1 MATERIALS

A. Pavement: Comply with Division 32 Section "Asphalt Paving."

2.2 EQUIPMENT

A. Fire Extinguishers: Portable, UL rated; with class and extinguishing agent as required by locations and classes of fire exposures.

2.3 TEMPORARY UTILITY INSTALLATION

A. Non-potable water for construction is not available within the Park boundaries. As required, the Contractor shall furnish non-potable water from a source outside the Park boundary.

B. Potable water is available at Park Headquarters in Port Angeles. Make connections to existing facilities as needed. Facilities must be cleaned and maintained in a condition acceptable to the

NPS. At Substantial Completion, restore these facilities to condition existing before initial use.

C. Sanitary Facilities: No sanitary service is available on site for Contractor’s use. Contractor shall provide portable sanitary facilities.

1. Place in location approved by Contracting Officer. Relocate as work progress requires.

2. Maintain and clean toilet facilities at least weekly.

3. Completely remove sanitary facilities upon completion of work.

D. Electric Power Service: No electric service is available on site for Contractor’s use.

E. Telephone Service: No hard wire telephone service is available on site for Contractor's use.

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2.4 SUPPORT FACILITIES INSTALLATION

A. Waste Disposal Facilities: Provide waste-collection containers in sizes adequate to handle waste from construction operations. Comply with requirements of authorities having jurisdiction.

2.5 SECURITY AND PROTECTION FACILITIES INSTALLATION

A. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

B. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the Project

Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area. Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

C. Tree and Plant Protection: Refer to Section 01 11 00 “Summary of Work.”

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EXECUTION

SECTION 01 73 40

1.1 INSTALLATION

A. Joints: Make joints of uniform width. Where joint locations in exposed work are not indicated, arrange joints for the best visual effect. Fit exposed connections together to form hairline joints.

B. Hazardous Materials: Use products, cleaners, and installation materials that are not considered hazardous.

C. Quantity surveys: Shall be conducted, and the data derived from these surveys shall be used in computing the quantities of work performed and the actual construction completed and in place.

1. The Contractor shall furnish the originals of all field notes and all other records to the layout of the work to the Contracting Officer, who shall use them as necessary to determine the amount of progress payments. The Contractor shall furnish the originals of all asphalt weight tickets, from a certified scale to the Contracting Officer. The

Contractor shall retain copies of all such material furnished to the Contracting Officer.

The NPS shall conduct the original and final surveys and surveys for any periods for which progress payments are requested. All these surveys shall be conducted under the direction of a representative of the Contracting Officer, unless the Contracting Officer waives this requirement in a specific instance. The Government shall make such computations as are necessary to determine the quantities of work performed or finally in place. The Contractor shall make the computations based on the asphalt weigh tickets for any periods for which progress payments are requested.

2. In case of discrepancy between asphalt weigh tickets and calculated in-place quantities, NPS shall complete a survey of actual improvements to be used as necessary to determine the amount of progress payments.

1.2 PROGRESS CLEANING

A. General: Clean Project site and work areas daily, including common areas. Coordinate progress cleaning for joint-use areas where more than one installer has worked. Enforce requirements strictly. Dispose of materials lawfully.

1. Comply with requirements in NFPA 241 for removal of combustible waste materials and debris.

2. Do not hold materials more than seven (7) days during normal weather or three (3) days if the temperature is expected to rise above eighty (80) deg F (27 deg C).

3. Containerize hazardous and unsanitary waste materials separately from other waste.

Mark containers appropriately and dispose of legally, according to regulations.

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5. Site: Maintain Project site free of waste materials and debris.

6. Work Areas: Clean areas where work is in progress to the level of cleanliness necessary for proper execution of the Work.

a. Remove liquid spills promptly.

b. Where dust would impair proper execution of the Work, broom-clean or vacuum the entire work area, as appropriate.

c. Contractor shall provide progress cleaning that minimizes sources of food, water, and harborage available to pests.

7. Waste Disposal: Burying or burning waste materials on-site will not be permitted.

Washing waste materials down sewers or into waterways will not be permitted.

1.3 CORRECTION OF THE WORK

A. Repair or remove and replace defective construction. Restore damaged substrates and finishes.

1. Repairing includes replacing defective materials, refinishing damaged surfaces and touching up with matching materials.

2. Restore permanent facilities used during construction to their specified condition.

3. Remove and replace damaged surfaces that are exposed to view if surfaces cannot be repaired without visible evidence of repair.

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CONSTRUCTION WASTE MANAGEMENT & DISPOSAL

SECTION 01 74 19

CONSTRUCTION WASTE MANAGEMENT & DISPOSAL

1.1 DISPOSAL OF WASTE

A. General: Except for items or materials to be salvaged, recycled, or otherwise reused, remove waste materials from Project site and legally dispose of them in a landfill or incinerator acceptable to authorities having jurisdiction.

1. Except as otherwise specified, do not allow waste materials that are to be disposed of accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

B. Burning: Do not burn waste materials.

C. Disposal: Transport waste materials off Governments property and legally dispose of them.

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CLOSEOUT PROCEDURES

SECTION 01 77 00

CLOSEOUT PROCEDURES

1.1 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 two (2) 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 five (5) calendar days, as weather permits. If the Contractor fails to complete the 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.

1.2 FINAL ACCEPTANCE OF THE WORK

A. Prior to requesting inspection for verification of completion of all outstanding items.

B. After all deficiencies have been corrected, a Letter of Final Acceptance will be issued.

DIVISION 31

EARTHWORK

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AGGREGATE BASE COURSE

SECTION 31 05 16

1.1 DESCRIPTION

A. The work of this Section consists of interim grading required from prior to paving. The Park will provide a completely graded surface up to 4 weeks prior to NTP. This work includes minor touch up grading required from pedestrian traffic and interim weather needed prior to paving to restore to subgrades shown on drawings.

1.2 SUBMITTALS (Material Submittals Provided by the Park)

A. As specified in Submittals – Section 01 33 23.

B. If materials are obtained from a commercial source, submit certification from the supplier certifying that aggregate base course meets the requirements of this Section.

1.3 QUALITY ASSURANCE

A. Testing required to determine compliance with the requirements for the work of this Section will be the responsibility of the Government. The Contractor shall cooperate by rerouting equipment or by temporarily closing the immediate work area being tested.

2.1 AGGREGATE (Provided by the Park)

A. Clean, hard, durable fragments or particles of crushed stone, crushed slag, or crushed or natural gravel. Materials that break up due to freeze-thaw or wet-dry cycling shall not be used.

B. Coarse Aggregate: AASHTO T96-77, percentage of wear of not more than fifty (50).

C. Fraction passing No. 40 sieve shall have a liquid limit not to exceed twenty-five (25) and a plasticity index of not more than six (6), as determined by AASHTO T89-81 and T90-81, respectively.

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D. Material, inclusive of filler, shall meet following screen analysis requirements by weight:

Sieve Size Percent Passing

3/4-inch 100

No. 4 30 - 65

No. 8 25 - 50

No. 200 3 - 15

2.2 FILLER

A. Finely divided mineral matter such as rock or slag dust, hydrated lime, hydraulic cement, or other suitable mineral matter free from organic impurities and clay.

2.3 WATER

A. Watering – Section 31 25 00.10

3.1 PLACING

A. If the required compacted depth of the aggregate base course exceeds six (6) inches, place course in two (2) or more layers of approximately equal thickness. The maximum compacted thickness of any one (1) layer shall not exceed six (6) inches.

3.2 MIXING

A. Mix the aggregate by any one (1) of the three (3) following methods.

B. Stationary Plant Method: Mix aggregate base course and appropriate amount of water for compaction in an approved mixer. After mixing, transport aggregate to the job site while it contains the proper moisture content and place on the trail with an approved aggregate spreader.

Before compaction, remove excess moisture.

C. Travel Plant Method: After the material for each layer has been placed through an aggregate spreader or windrow sizing device, it shall be uniformly mixed by a traveling mixing plant.

D. Road Mix Method: After placing each layer, mix materials at optimum moisture content using motor graders or other approved equipment until the moisture is uniform throughout.

E. When commercial binders or fillers are used with aggregate, mix with a central mixing plant of the twin-Pugmill type. Other methods that ensure a thorough and homogenous mixture may be used on written approval.

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3.3 COMPACTION

A. Compact each layer to a density of not less than ninety-five (95) percent of the maximum density, as determined by AASHTO T180-74, Method D. Contracting Officer will test density in-place, in accordance with AASHTO T191-61, T205-64, or other recognized method.

Random tests for compacted depth will be made during the progress of the work.

3.4 SURFACE FINISHING

A. Use a smooth steel wheel roller for the final rolling of top surface base course. Water surface and evenly spread loose stones before final rolling. Make minimum of two (2) complete passes over area to embed stones. Correct soft spots developed during rolling.

B. Compacted base course surface shall be smooth and free from waves and other irregularities.

Unsatisfactory portions of base course shall be torn up, reworked, re-laid, and rerolled, at no additional expense to the Government.

3.5 MATERIAL ACCEPTANCE REQUIREMENTS

A. Acceptance will be based on periodic samples and tests taken following mixing and before laying.

3.6 TOLERANCES

A. Surface: The Contracting Officer will test finished surface of the base course with a ten (10) foot straight edge or other device. The variation between any two (2) contacts with the surface shall not exceed one half (1/2) inch. Any areas not complying with these tolerances shall be reworked to obtain conformity.

B. Width: Plan dimension, plus or minus two (2) inches.

C. Thickness: Plan dimension, plus or minus one half (1/2) inch.

3.7 REMEDIAL WORK

A. Remedial work shall consist of the following:

1. Roadbed Reconditioning: Remove organic, deleterious, and material larger than 6 inches from the top 6 inches of subgrade. Dispose of waste according to Specification 01 74 19

Construction Waste Management & Disposal. Repair soft and unstable areas as required.

Scarify surface to a 6 inch depth. Remove irregularities and shape to a uniform surface.

Finish earth surfaces to within 0.05 feet and rock surfaces to within 0.10 feet of required line, grade, and cross section. Compact according to Specification 31 05-16 Aggregate

Base Course, Section 3.3 Compaction.

2. Aggregate Surface Reconditioning: Repair soft and unstable areas to the full aggregate surface depth. Scarify the thickness of aggregate surfacing material or to 6 inches, OLYM – 185264 31 05 16 - 4 whichever is less. Remove irregularities and shape to a uniform surface. Finish and compact the surface according to Specification 31 05 16 Aggregate Base Course.

3. Roadway Reconditioning: Perform applicable work to achieve aggregate base in accordance with Specifications 31 05 16 Aggregate Base Course. Maintain existing cross slope and crown.

3.8 MAINTENANCE

A. Maintain base course in a satisfactory condition until surfaced or until final acceptance.

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RESTORATION OF SURFACES

SECTION 31 23 33.10

A. The work covered by this Section includes restoration to all types of surfaces, sidewalks, curbs, gutters, culverts and other features disturbed, damaged or destroyed during the performance of the work under or as a result of the operations of the contract.

1.2 GENERAL

A. The quality of materials and the performance of work used in the restoration shall produce a surface or feature equal to or better than the condition of each before the work began.

1.3 TEMPORARY PAVEMENT

A. Unless otherwise specified or directed temporary pavement shall consist of a two (2) sack slurry to such a depth as required to withstand the traffic to which it will be subjected.

B. For dust prevention, the Contractor shall treat all surfaces as frequently as may be required.

C. The temporary surface shall be maintained by the Contractor in a safe and satisfactory condition until such time as the permanent paving is completed. The Contractor shall immediately remove and restore all pavement as shall become unsatisfactory.

1.4 PERMANENT PAVEMENT REPLACEMENT

A. The permanent and final repaving of all trails and similar surfaces where pavement has been removed, disturbed, settled or damaged by or as a result of performance of the Contract shall be repaired and replaced by the Contractor, by a new and similar pavement, in accordance with

Asphalt Concrete Pavement – Section 32 12 16.

1.5 PREPARATION FOR PERMANENT PAVEMENT

A. When scheduled and within the time specified, the temporary pavement shall be removed and a base prepared, at the depth required by the Contracting Officer to receive the permanent pavement.

B. The base shall be brought to the required grade and cross-section and thoroughly compacted before placing the permanent pavement.

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C. Any base material which has become unstable for any reason shall be removed and replaced with compacted materials.

D. The edges of existing asphalt pavement shall be cut a minimum of one (1) foot beyond the excavation of disturbed base whichever is greater.

E. All cuts shall be straight and shall be parallel or perpendicular to the centerline of the utility piping.

1.6 ASPHALT PAVEMENT

A. The permanent asphalt pavement replacement for trails shall be at a minimum replaced with bituminous materials of the same depth and kind as the existing unless otherwise specified.

B. Prior to placing of any bituminous pavement, a sealer shall be applied to the edges of the existing pavement and other features.

C. The furnishing, handling and compaction of all bituminous materials shall be in accordance with the Contracting Officer.

1.7 STONE OR GRAVEL PAVEMENT

A. All pavement and other areas surfaced with stone or gravel shall be replaced with material to match the existing surface unless otherwise specified.

B. The depth of the stone or gravel shall be at least equal to the existing.

C. After compaction the surface shall conform to the slope and grade of the area being replaced.

1.8 OTHER TYPES OF RESTORATION

A. Flow lines indicated on the topographical survey shall not be altered by construction activity.

The Contractor is responsible for re-establishing flow lines that have been affected by construction equipment or personnel under the supervision of the Contractor.

B. Trails and slopes shall be restored to their original condition upon completion of construction activity at a given area. The Contractor must ensure that no new channel flow lines or watercourses have been created as a result of construction activity.

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SOIL EROSION & SEDIMENTATION CONTROL

SECTION 31 25 00

A. The work in this Section includes those items necessary for erosion and sedimentation control on project site.

1.2 REFERENCES

A. Refer to and comply with the applicable permits for the project work. Copies of applicable permits to be obtained shall be the responsibility of the contractor.

1.3 EROSION AND SEDIMENTATION CONTROL PRACTICES

A. Erosion and sedimentation control measures shall be utilized throughout the construction site to prevent erosion during construction and after construction until vegetation is established.

B. Erosion and sedimentation control measures shall be appropriate to the site. The following general practices shall be used where applicable:

C. Uncover the smallest practical area of land.

1. Use of temporary vegetation, mulch or other cover to protect areas during construction will require approval by the Contracting Officer.

2. Utilize dikes, or silt fence to trap sediment. Any seed, or temporary vegetation used on site will require approval by the Contracting Officer.

3. Diversion dams and/or dikes shall be utilized in utility trenches at a maximum spacing of every one hundred (100) feet in order to prevent free flow of water along the trench bottom.

4. Reduce volume and velocity of water crossing disturbed areas by utilizing diversion dams, berms, or other facilities approved by the Contracting Officer.

1.4 SUBMITTALS

A. Quality Assurance/Control – Contractor shall prepare an erosion and sediment control plan for all project areas.

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2.1 NETTING

A. Fibrenet Organic Jute Fiber – American Excelsior Company or approved equal.

2.2 BIODEGRADABLE TURF STAPLES

A. Estaples – American Excelsior Company or approved equal.

3.1 GENERAL

A. Burlap wattles and erosion control measures shall be established prior to exposing any erodible material. Site grading and drainage operations are to be conducted in a manner to prevent or lessen excessive soil erosion of the construction site work area. Appropriate soil control measures shall be implemented down slope from each drainage area where excavation and riprap are to be installed.

B. Jute netting shall be installed over backfilled soil. The netting must extend twelve (12) inches beyond the edges of the backfilled area. Biodegradable turf staples shall be used in accordance with manufacturer recommendations, to secure netting.

C. The Contracting Officer has the authority to limit the surface area of erodible earth material exposed by clearing and grubbing excavation, material placement operations, and to direct the

Contractor to provide immediate temporary or permanent erosion control measures. The

Contractor shall incorporate all permanent erosion control features into the project at the earliest practicable time to minimize the need for temporary controls.

3.2 TEMPORARY PROTECTION OF THE SOIL

A. Temporary soil protection shall be provided and maintained by the Contractor over the winter after the initial growing season.

B. The following methods shall be used at the locations shown on the plans unless directed to otherwise by the Contracting Officer.

1. Burlap wattles: Down-slope and side perimeter of disturbed areas and culvert inlets.

C. After project work is completed, the burlap wattles and straw bales shall be left in place.

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D. The temporary erosion control system installed shall be properly maintained as directed by the

Contracting Officer to control siltation at all times during the life of the contract. If the

Contractor fails to maintain the temporary erosion control systems as directed by the

Contracting Officer, the Contracting Officer may at the expiration of the period of forty-eight

(48) hours, after having given written notice, proceed to maintain the system as deemed necessary, and the cost thereof shall be deducted from any compensation due, or which may become due the Contractor under this contract. The Contractor is responsible for compliance with all requirements of the permits related to the project.

E. Remove soil and debris from structures, roadways, pipes, ditches, and other appurtenances to restore proper functioning.

3.3 ADDITIONAL CONTROL MEASURES

A. Any soil loss control measures, in addition to those outlined in these documents and deemed necessary by Governing Authority shall be implemented immediately. Contractor shall notify Contracting Officer immediately upon notification from governing authority that additional control measures will be required.

DIVISION 32

EXTERIOR IMPROVEMENTS

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ASPHALT CONCRETE PAVING

SECTION 32 12 16

A. The work of this Section consists of constructing one 2-inch minimum thickness surface course

(lift) composed of a mixture of aggregate, filler if required, and bituminous material, placed on a base.

B. Paving shall follow the contract documents designed horizontal alignment within the Park’s trail route.

C. Contractor shall employ a separate entity to perform compaction testing.

1.2 SUBMITTALS

A. Job-Mix Formula: Before producing bituminous mixture, submit a job-mix formula for each mixture to the Contracting Officer for approval. Should a change in source of material be proposed, or should a job-mix formula prove unsatisfactory, submit a new job-mix formula for approval.

1. Each job-mix formula submitted shall propose definite single values for:

a. The percentage of aggregate passing each specified sieve, based on the dry weight of the aggregate.

b. The percentage of bituminous material to be added based on the total weight of the mixture, and the percentage of any stabilizing agent such as lime, Portland cement, or anti-strip agent.

c. The percentage of high natural CRM in the total CRM.

2. In addition, the job-mix formula shall provide a mixture having a minimum wet retained strength of one hundred-twenty five (125) psi, as determined by AASHTO T165-82, and an index of retained strength of not less than seventy (70) percent.

B. Certificates and Laboratory Testing Results:

1. Gradation analysis, sand equivalent, and durability index for aggregate base course.

2. Certification from supplier that asphalt cement is of correct type and meets requirements of this Section.

3. Compaction test results.

4. Contractor shall furnish certified lab results of job mix formula of percent voids, stabilometer and aggregate gradation analysis for the asphalt concrete.

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1.3 PRESERVATION OF NATURAL FEATURES

A. Confine all operations to work limits of the project. Heavy equipment will be confined to use on the trails to be paved, or as determined by the Contracting Officer. Avoid unnecessary soil compaction, disturbance of ground cover, and creation of wheel ruts. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

Do not fasten ropes, cables, or guys to existing features. All equipment shall be thoroughly pressure washed prior to transport to the Park to prevent unintentional importation of seed or soil materials. Contractor shall allow for Contracting Officer to inspect equipment to assure that it is clean prior to entering Park.

1.4 HAULING RESTRICTIONS

A. 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.

1.5 PROJECT CONDITIONS

A. Apply mixture only during hours of daylight; when air temperature is fifty (50) degrees F or higher; when surfaces to be paved are dry and free of frost, snow, or ice; and when precipitation is not imminent.

2.1 AGGREGATE BASE COURSE

A. Work under this item shall be furnished and installed by the Park except for remedial work required due to erosion to re-install and re-compact material.

2.2 MATERIAL

A. Asphalt Cement Prime Coat - Meet requirements of ASTM D 2027, MC 70, plus or minus one grade.

B. Tack Coat - Emulsified asphalt meeting requirements of Grade CSS-1 or Grade CSS-1H, or

Grade STE-1 per WSDOT 5-04.3(5)A.

C. Pavement

D. Asphalt Binder - WSDOT 9-02.1(4)

1. Meet requirements of AASHTO M320 Table 1, Performance grade PG 52-22

E. Aggregates - WSDOT 9-03.8

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1. Fine to coarse mineral aggregates with Los Angeles Wear less than thirty percent (30%) and mineral filler (AASHTO M 17) meeting following proportion requirements:

Sieve Size % Passing – Control

Points

3/4” 99-100

1/2" 90-100

3/8” 90 Maximum

No. 8 28-58

No. 200 2.0-7.0

2. Up to twenty percent (20%) by weight of total hot mix asphalt (HMA) may consist of pulverized, recycled asphalt pavement (RAP), providing aggregate grading requirements are met.

2.3 ASPHALT CONCRETE JOB MIX

A. Develop mix design according to WSDOT Standard Specifications for HMA Class ½ PG 52-

22 with ESAL’s of < 0.3 million (WSDOT 5-04, 9-02, 9-03.8). The thickness of asphalt concrete required shall be a minimum of two (2) inches.

B. Warm Mix Asphalt – Comply with manufacturer’s recommendations for incorporating additives and WMA technologies into the mix. Comply with manufacturer’s recommendations regarding delivery and storage of additives.

C. Changes from one mix design to another shall not be made during the progress of the work unless permitted by the Contracting Officer. However, changes in proportions to conform to the approved mix design shall not be considered changes in mix design

3.1 EQUIPMENT

A. Hauling Equipment: Trucks used for hauling bituminous mixtures shall have tight, clean, smooth metal beds which have been thinly coated with a minimum amount of paraffin oil, lime solution, or other approved material to prevent the mixture from adhering to the beds. Each truck shall have a cover of canvas or other suitable material of such size as to protect the mixture from the weather.

B. Bituminous Pavers:

1. Bituminous pavers shall be self-contained, power-propelled units, provided with an activated screed or strike-off assembly, heated if necessary, and capable of spreading and finishing courses of bituminous plant mix material in widths applicable to the specified typical section and thicknesses shown on the drawings.

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2. The paver shall be equipped with a receiving hopper having sufficient capacity for a uniform spreading operation. The hopper shall be equipped with a distribution system to place the mixture uniformly in front of the screed.

3. The paving machine shall be equipped with an automatic control system which will control the elevation of the screed and which is automatically actuated by a system of sensor-operated devices which sense and follow reference lines or surfaces on one or both sides of the machine as required.

4. Maintain screed at the proper elevation at each end by controlling the elevation of one end and automatically controlling the transverse slope or by controlling the elevation of each end independently, as directed.

5. The screed or strike-off assembly shall effectively produce a finished surface of the required evenness and texture without tearing, shoving or gouging the mixture. The paver shall be capable of being operated at forward speeds consistent with satisfactory laying of the mixture.

C. Rollers shall be of the steel-wheel, vibratory, pneumatic tire type, or combination, capable of reversing without backlash. Steel-wheel rollers other than vibrating shall be capable of exerting a force of not less than two hundred-fifty (250) pounds per inch of width of the roller. Vibrating steel-wheel rollers shall have a minimum weight of six (6) tons.

D. Pneumatic-tired rollers shall have smooth tread tires of equal size that will provide a uniform compaction pressure for the full width of the roller and shall be capable of exerting a ground pressure of at least eighty (80) pound per square inch.

3.2 PREPARATION

A. Prior to placement of the AC pavement, ensure that the base material is competent and compacted and ready to receive material and that the new surface maintains the existing trailway grades.

B. Conditioning of Existing Surface:

1. Verify fine grade surface matches Drawing improvements as required by Contract

Documents. When the surface of the base is irregular, it shall be brought to the attention of the Contracting Officer. Irregularities of uniform grade caused by contractor shall be corrected by contractor prior to placement of asphalt pavement or as directed by the

Contracting Officer.

2. Any undue irregularities of uniform grade caused by contractor shall be corrected by

Contractor at no additional expense to the Government.

C. Tack coat all saw cut and vertical asphaltic concrete and concrete surfaces that will be in contact with paving.

D. Preparation of Bituminous Material: Provide a continuous supply of the bituminous material to the mixer at a uniform temperature at all times; avoid local overheating.

E. Transport and place bituminous mixture on the trail in a manner that will minimize segregation.

Remove segregated areas behind the paver immediately and replace the segregated material with specification material before the initial rolling has taken place. The removal and

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replacement of non-specification material or unacceptable work shall be accomplished at no

3.3 PREPARATION OF AGGREGATES

A. Aggregates for pug-mill mixtures shall be dried and heated to the required temperature.

B. Properly adjust flame to avoid damage to the aggregate and to avoid soot on the aggregate.

C. Untreated aggregates for dryer-drum mixtures will not require prior preparation other than gradation control, except that those containing gravitational water shall be stockpiled and allowed to drain prior to mixing. Moisture in final mixture shall be limited to three percent

(3%) maximum.

3.4 MIXING

A. Combine aggregates in the mixer in the amount of each fraction of aggregates required to meet the job-mix formula. The bituminous material shall be measured or gauged and introduced into the mixer in the amount specified by the job-mix formula.

B. After the required amounts of aggregate and bituminous material have been introduced into the mixer, the materials shall be mixed until a complete and uniform coating of the particles is secured.

C. The bituminous material and aggregate for pug-mill mixtures shall be introduced into the mixer within thirty-five (35) degrees F of each other. Temperature of pug-mill mixtures shall be controlled between two hundred-twenty five (225) and three hundred (300) degrees F.

D. Material delivered to the paver shall not be less than two hundred-twenty five (225) degrees F.

3.5 AGGREGATE SUB-BASE (Material, and Installation provided by the Park)

A. The sub-base shall be native fill compacted to ninety-five (95) percent maximum density.

Thickness will vary.

3.6 AGGREGATE BASE COURSE (Material, and Installation provided by the Park)

A. The base shall be a crushed surfacing top course compacted to ninety-five (95) percent maximum and shall be a uniform thickness of at least four (4) inches.

3.7 SPREADING AND FINISHING MIX

A. Site Tolerances

1. Sub-Grade – One (1.0) inch high. Measure using string line from wood block to wood block at or between grade breaks.

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2. Base for asphalt patching-

a. Base shall be four (4) inches thick minimum after compaction, except where in special areas for constructability a minimum of two (2) inches may be used as shown on Drawings.

b. Measure using string line from wood block to wood block, or grade break.

3. Base for new pavement shall match the thickness on the typical section shown on the plans.

4. Paving

B. Apply asphaltic concrete paving in single lift to two (2) inches thick minimum after compaction.

C. Paving adjacent to cast-in-place concrete site elements shall be between one-fourth (1/4) inch higher than concrete and flush with concrete.

D. Surface texture of hand work areas shall match texture of…