Att 1_S2_Trail_Specs.pdf

Lake Davis Trail, Section2, Trail SPS Page 1 of 15

Special Project Specifications for Trails

Table of Contents

904 - Maintenance for Traffic Deletion and Addition 2

905 - Control of Materials Deletion and Addition 2

906 - Measurement and Payment Deletion and Addition 3

907 - Quality Assurance Deletion and Addition 4

909 - Health and Safety Specification 6

937 – Treated Timber Structures Specification 9

945 – Polymer bonded aggregate Surfacing Specification 10

961 – Rock… Aggregate Deletion and Addition 11

962 – Material for Timber Structures 12

963 – Drainage Pipe Additions 13

967 – Polymer Bonded Aggregate Specification 14

Lake Davis Trail, Section2, Trail SPS Page 2 of 15

SPECIAL PROJECT SPECIFICATIONS

Section 904—Maintenance for Traffic

904.01 General.

Delete the first paragraph and add:

The existing trail between station 00 and 208 shall remain open to public traffic in a safe and passable condition between 6:00 Pm on Fridays and 7:00 AM on Mondays (weekends) and federal holidays. As much as practicable and safe, the contractor shall, at other times, open the trail to public traffic during construction. The project area between stations EQ21 and 37 and between stations 208 and 367 shall remain closed to public travel for the duration of construction. The Contracting Officer may authorize emergency closures at other times.

Perform no work that interferes or conflicts with traffic until a plan for handling traffic has been submitted and approved. Specific requirements for detours or closures are SHOWN ON THE DRAWINGS or in the

SPECIAL PROJECT SPECIFICATIONS.

The Catfish Cove parking area may be closed between 8:00 AM Mondays and 6:00 PM Fridays. The area shall remain open to public access on weekend days. Work adjacent to PC Road 126 shall be conducted in accordance with requirements of the Plumas County Encroachment Permit(s)

SECTION 905—Control of Materials

905.02 Material Sources

Delete (a) and add:

(a) Alternate Sources.

i. Sources for materials such as, but not limited to, soil, rock, or logs that are not available from clearing operations or trail excavation and not otherwise provided for in the contract, shall be approved by the Contract Officer prior to incorporation into the project.

ii. Rock(s) from the area surrounding the trail may be utilized in construction providing no more than an equivalent of 2 m2 is removed from any 9 m2. area of ground surface. With the Contract Officers approval, rock may be removed from or relocated within a drainage (stream bed) for incorporation in the trail construction.

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Section 906—Measure and Payment

Add the following:

906.06 Payment: Submit quantities and payment request to the Contract Officer according to the Schedule of Items. The Contract Officer shall approve payment amounts. Quantities are subject to verification.

906.07 Invoices: Invoices shall be submitted to the C.O. and shall contain the following minimum information:

A. Contractor’s Name, Business Address, and Phone Number

B. Invoice Date and Number1

C. Contract Number

D. Project Name

E. Contractor’s DUNS

F. Itemized charges consistent with the Schedule of Items and showing units charged for.

G. Name and phone Number for Contact Person.

NOTE: 1. Invoice Number must be a unique designator which will not appear on any other federal contract invoice for two years.

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Section 907—Quality Assurance

Delete 907.01 and 907.02 and add:

Description

907.01 General

a) Work.

The work consists of providing certification that the quality and quantity of construction conforms to the drawings, specifications, and requirements

b) Submittals.

i. A Project Schedule shall be submitted at the pre-work conference.

ii. Revisions to the approved schedule shall be submitted weekly to the Contract Officer

Work

907.02 Quality Control

a) At the time of the preconstruction conference, submit for approval a written Contractor Quality Control (CQC) plan.

If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days.

The Government reserves the right to require changes in the plan during the contract period as necessary to obtain the quality specified.

No change in the approved plan may be made without written concurrence by the Contracting Officer.

The plan shall include:

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

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

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

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

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

b) Responsibility:

i. The quality of all work shall be the responsibility of the Contractor.

ii. Inspect and test all work often enough to ensure that the quality of materials, workmanship, construction, finish, and functional performance is in compliance with applicable specifications and drawings.

iii. Quality Control Daily Reports shall be completed by the Quality Control Supervisor.

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c) Quality Control Staff:

i. The Contractor’s Quality Control Supervisor may also perform the duties of Project Superintendent.

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

d) Offsite Produced materials

Furnish certification executed by the manufacturer, supplier, or vender clearly indicating that the supplied materials referred to meet the requirements AS SHOWN ON THE DRAWINGS or stated in the specifications.

e) Documentation

i. Maintain Quality Control Daily Reports and Daily Test Report Information Sheets (samples attached) of quality control activities and tests.

ii. 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.

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Add the following:

Section 909—Health and Safety

909.01 General

a) Work.

The work of this section consists of establishing an effective accident prevention program and providing a safe environment for all personnel and visitors.

b) Submittals.

Accident Prevention Program: Before on-site work begins, submit for approval an accident prevention program. The Contracting Officer (CO) will review the proposed program for compliance with OSHA and project requirements. If the program requires any revisions or corrections, the Contractor shall resubmit the program within 10 days. No progress payments will be processed until the program is approved. The program shall include:

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

ii.Weekly and monthly safety meetings iii.First aid procedures.

iv.Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to ensure property protection and safety of the public, government personnel, and the Contractor's employees (Job Hazard Analyses). Identify the work included under each phase by reference to specification section or division numbers.

v.Training, both initial and continuing.

vi.Submit a brief report of safety meetings and of inspections.

vii.Upon request, submit proof of employees' qualifications to perform assigned duties in a safe manner.

c) Quality Assurance.

i. 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.

ii. Qualifications of Employees

iii. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

iv. To as great an extent as possible, do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

v. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be 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.

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d) Accident reporting

i. Reportable Accidents: A reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, property damage by accident in excess of $100, and fires.

Within 7 days of a reportable accident, fill out and forward to the CO a DI-134 form, which may be obtained from CO.

ii. All Other Accidents: The Contractor shall report all other accidents to the CO as soon as possible and assist the CO and other officials as required in the investigation of the accident.

909.02 Equipment

a) First Aid facilities:

Provide adequate facilities for the number of employees and the type of construction at the site.

b) Personnel Protection Equipment.

i. All PPE shall meet requirements of OSHA and CalOSHA.

ii. Damaged or defective personal protective equipment shall not be used

iii. Employees operating chain saws:

1) Shall wear foot protection that is constructed with cut resistant materials which will protect against contact with a running chain saw

2) Shall be provided with by the contractor, at no cost to the employee, chain saw chaps approved by Underwriter’s laboratory or meet Forest Service specification 6170-47.

iv. The Contractor shall ensure that employees use and employ all personal protective equipment appropriate to each task as it is performed

909.03 Execution

a) Emergency Instructions.

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

b) Protective Equipment.

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

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

c) Safety Meetings.

i. As a minimum, conduct weekly 15-minute "tailgate" safety meetings. These meetings shall be conducted by a foreman or the superintendent and attended by all construction personnel at the worksite. Sub-contractors may conduct their own safety meetings.

ii. Submit minutes of all safety Meetings to the Contract Officer.

d) “Hard Hat” Areas.

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i. A hard hat area will be designated by the CO. The hard hat area shall be posted by the Contractor in a manner satisfactory to the CO.

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

e) Training.

i. First Aid: Provide adequate training to ensure prompt and efficient first aid.

ii. 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.

909.04 Payment: There is no separate payment for this work.

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Section 937 – Timber Retaining Walls

937.01 Work

This work consists of the supply and installation of wood landscape tie structures.

937.02 Materials

a) Requirements

i. Landscape ties shall be new "6 x 8" No. 3 Douglas Fir/Hem Fir pressure treated with ACQ (Alkaline Copper Quaternary.) to a net retention of 0.40 lbs. per cu. ft. or approved equal.

Treatment shall be “brown” in color. Treated ties shall be cleaned after treatment according to Best Management Practices. Ties shall be straight and true, without damaged edges. Ties that are warped will be rejected, and replaced at Contractor's expense.

ii. All field cuts, abrasions, and holes made in fabricated timbers after treatment shall be given 3 brush coats 2% Copper Napthanate colored with a manufacturers approved tint to closely match the color of the pressure treated wood.

b) Submittals

Submit manufacture’s data and installation instruction for processed wood treatment as specified in Division 1 Section “Submittal Procedures.”

937.03 Construction

a) Each tie shall be anchored as shown on the plans. The rebar shall be driven until the top of the rebar is level with the top of the landscape ties. Rebar holes shall be 1/2" diameter, and pre-drilled to prevent splitting. Ties that are badly warped or have exposed corners missing shall not be used.

b) Ties shall be overlapped at corners and tied with a No. 4 rebar. Butt joints shall be staggered. All joints shall be uniformly tight. Rebar pins shall be placed as shown on the drawings. If bed rock is encountered the rock shall be drilled to receive the rebar dowel.

c) All field cuts or abrasions and holes made in fabricated timbers after treatment shall be given three brushed coats 2% Copper Napthanate which shall be applied in such manner as to prevent overspill from entering soils or waterways. Holes shall be treated using a barrel swab or similar device.

d) Handling Precautions: Wear protection such as dust masks, goggles, and gloves when sawing treated lumber.

e) GeoTextile anchor shall be securely fastened to the wall ties AS SHOWN ON THE DRAWINGS before the next tier is placed. The maximum distance between re-bar pins driven through the geotextile in the wall shall be 48”. Anchor pins shall be placed AS SHOWN ON THE DRAWINGS.

937.04 Measurement and Payment

Measurement and payment will be in accordance with the Schedule of Items. Payment shall include full compensation for furnishing all labor, materials and equipment needed to complete the work in accordance with the drawings and specifications.

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Section 945 – Polymer Bonded Aggregate Surfacing

945.01 Work

The work of this Section consists of preparing the trail base, placing and compacting both the aggregate base and the polymer bonded surface.

Materials

945.02 Requirements

Use materials meeting the requirements of the following sections:

961 – Rock, Grid Pavements Units and Aggregate.

964 – Geosynthetics.

967 – Polymer Bonded Paving Aggregate.

945.03 Handling Materials

The polymer/aggregate surfacing material shall be transported, stored, and placed in accordance with the supplier’s recommendations.

Construction

045.04 Weather Limitations

Do not place the polymer/aggregate mixture when weather conditions prevent the proper compaction of the material, the base course is frozen, or the average temperature of the underlying surface and/or the ambient air is below 8º C. Do not place when it is raining or snowing.

945.04 Surface Preparation

Remove loose aggregate, soil, and other deleterious material from the surface to be paved. Prepare and finish the base as required under Section 941. Obtain written approval of the C.O. before placing polymer/aggregate material.

945.05 Placement and Compaction

Place and compact the polymer/aggregate mixture in accordance with the manufacturer’s recommendations and specifications and as SHOWN ON THE DRAWINGS.

i. Make any grade adjustments and add needed material.

ii. Heavily compact material making a minimum of 8 passes or as recommended by the mixture’s manufacturer. Avoid turning on the mixture with the roller.

iii. Use plate compactor on edges and hard to get areas. If near wall, hand tamp may be necessary.

iv. Loose material shall not be present on final surface.

945.06 Thickness

Do not vary the thickness of the compacted mixture by more or less than 15% from the thickness SHOWN ON THE DRAWINGS and not consistently above or below the specified thickness.

945.07 Measure and Payment

Measure and pay for the accepted quantities in accordance with Section 906 and at the contract unit price as shown in the Schedule of items.

Section 961 Rock, Grid Pavement Units, and Aggregate

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Section 961 – Rock… Aggregate Delete 961.01 and add:

961.01 Rock. Use sound, durable rock free of rifts, seams, laminations, and minerals that could deteriorate as a result of weathering. Dress rock to remove thin or weak portions before use. Riprap rock shall be furnished is sizes as shown in Table A.

Table 961-A Gradation Requirements for Riprap

Class % by Mass Mass (kg) Approximate Cubic

Dimension (1)(2) (mm)

35 50-75 250-300

35 25-50 200-250

25 5-25 100-200

IIB

5 0-5 0-100

(1) The volume of a rock with these cubic dimensions has a mass approximately equal to the specified mass.

(2) Furnish rock with breadth and thickness at least one-third its length.

Table 961-B

Gradation Requirements for Drain Rock

% by Volume Mass (kg) Maximum Dimension

50-60 NA 75 mm

20-30 NA 50 mm

10-20 NA 25 mm

Drain Pock

0-5 NA 13 mm

(1) The volume of a rock with these cubic dimensions has a mass approximately equal to the specified mass.

(2) Furnish rock with breadth and thickness at least one-third its length.

Rock for use as surfacing or steps shall be a minimum of 150 mm thick with a minimum width and length of 200 mm. Trail surfacing rock for use in low water crossings shall be a minimum of 180 mm thick with a minimum width and length of 250 mm.

All rock utilized for riprap, trail surfacing/steps, and drains shall conform to the following:

a. Apparent Specific Gravity, ASTM C127-93) 2.50 min.

b. Absorption, ASTM C127-93, 4.2% max.

c. Soundness of Aggregates, ASSHTO T103-91(00) <25%

Work in this section is incidental to other work. No separate payment will be made.

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Section 962 – Material for Timber Structures

962.02 Structural Lumber

Add the following paragraph:

Landscape ties shall be new "6 x 8" No. 3 Douglas Fir/Hem Fir. Ties shall be straight and true, without damaged edges. Ties that are warped will be rejected, and replaced at Contractor's expense.

962.03 Hardware

Add the following after the first paragraph:

Re-Bar pins shall be cut from Grade 60 steel reinforcing bars AS SHOWN ON THE DRAWINGS

962.04 Preservative.

Delete and add the following:

Sawn lumber shall be pressure treated with ACQ-B (Ammoniacal Copper Quaternary), ACQ-C (Alkaline Copper Quaternary), CCA-A,B,or C (Chromated Copper Arsenate) to a net retention of 0.40 lbs. per cu.

ft. Treatment shall be “green/brown” in color. Treated ties shall be cleaned after treatment according to Best Management Practices published by the Western Wood Protection Institute

Submit Manufacture’s certification of conformity to these specifications..

All field cuts or abrasions and holes made in fabricated timbers after treatment shall be given three brushed coats 2% Copper Napthanate which shall be applied in such manner as to prevent overspill from entering soils or waterways. Drilled holes shall be coated using a barrel swab or other similar device.

Handling Precautions: Wear protection such as dust masks, goggles, and gloves when sawing treated lumber.

Add the following:

937.05 Measurement and Payment

Measurement and payment will be in accordance with the Schedule of Items. Payment shall include full compensation for furnishing all labor, materials and equipment needed to complete the work in accordance with the drawings and specifications.

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Section 963-Drainage Pipe

963.02 Corrugated Steel Pipe and Pipe Arches

(c) Helical Pipe. Use un-perforated helically corrugated pipe with continuous lock or welded seams meeting the applicable requirements of ASTM 760M-06 and conforming to the following specifications:

i. Minimum internal diameter: 455 mm

ii. Minimum wall thickness: 1.75 mm

963.07 Corrugated HDPE Pipe. Use corrugated HDPE pipe with a minimum recycled content of 40% and otherwise conforming to the applicable requirements of ASTM F2306M-07 and the following specifications:

i. Minimum internal diameter: 455 mm

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Section 967 – Polymer Bonded Aggregate

967.01 Material

a) Bonding Agent :

i. Shall be composed of a polymer or wax/polymer material specifically manufactured for aggregate bonding.

ii. Shall be blended with the aggregate at a mixing temperature of not less than 90º C.

b) Aggregate

i. Crushed stone shall consist of inert materials that are hard, durable, with stone free from surface coatings and deleterious materials. The minimum gradation requirements shall be as follows:

Sieve % Passing by Weight

12.5 mm 98 - 00

9.5 87 - 100

4.75 65 - 80

2.36 48 - 65

0.60 30 - 40

0.75 10 - 12

ii. R-value minimum of 70 determined by ASTM D 2488 Methodology (R-value is a measure of wear resistance).

iii. Sand equivalent – an engineering measurement of the proportion of sand to silt and clay, will stay at a range of 30-55. As determined by ASTM D 2419 methodology.

iv. Color shall be as SHOWN ON THE DRAWINGS.

967.02 Handling

a) The paving mixture shall be transported and stored at ambient temperatures not less the 5º C and placed and compacted at temperatures not less than 10º C.

b) Mixed aggregate material that is stored in open stockpiles or containers shall be placed and compacted within 90 days of the date of manufacture.

c) Mixed aggregate material that is stored in closed or sealed containers (plastic bags) shall be placed and compacted within 7 months of the date of manufacture.

967.03 Submittals and Certifications

a) Submit color sample(s) of the compacted product to the C.O. for approval no less than 20 days before paving work is to begin.

b) Submit certification(s) of compliance with these requirements supplied by the paving mixture manufacturer and/or supplier.

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967.04 Construction

Polymer bonded pavement shall be placed and compacted in accordance with the manufacturer’s or suppliers recommendations and specifications.

967.05 Samples

Prepare a mock-up section in accordance with the following:

i. Construct mock-up panel(s) for each different type of paving system as specified herein to demonstrate ability to archive types of setting bed, joints, pattern, color and texture required.

ii. Construct a 2.0 m X 2.0 m sample of finished path as directed by the C.O. on site.

iii. Schedule mock-up construction so that mock-up can be accepted a minimum of 10 days prior to the application of paving surfaces represented by the mock-up.

iv. Locate mock-up panel(s) in areas as directed by the Owner’s Representative.

v. Continue to construct mock-ups until acceptable mock-up is produced at no additional cost to the government.

vi. Acceptable mock-up shall be the project standard for texture, color and workmanship.

vii. Use same setting bed and joint mixes used in accepted mock-up in final work unless otherwise directed by C.O..

viii. Protect accepted mock-ups from damage until completion and acceptance of the work represented by the mock-ups.

ix. Remove mock-up panel(s) from the site at completion of the project, unless otherwise instructed by

Special Project Specifications for Trails