Specifications.pdf

Avalanche Bridge Plank Replacement

White River National Forest

Solicitation No.: AG-82D7-S-14-0016

101 - Terms, Format, and Definitions

101.00_nat_us_04_02_2004

101.01 Meaning of Terms

Add the following:

Delete all references in FP-03 to Transportation Acquisition Regulations (TAR).

101.03_nat_us_04_02_2004

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NIST

NESC

WCLIB

WWPA

ALSC

WWPI

NLGA

NSLB

NLMA

RIS

SPIB

American Forest and Paper Association

Mine Safety and Health Administration

National Institute of Standards and Technology

National Electrical Safety Code

West Coast Lumber Inspection Bureau

Western Wood Products Association

American Lumber Standards Committee

Western Wood Preservers Institute

National Lumber Grades Authority

Northern Softwood Lumber Bureau

Northeastern Lumber Manufacturer's Association

Redwood Inspection Service

Southern Pine Inspection Bureau

Add the following to (b) SI symbols:

mp Milepost ppm Part Per Million

101.04_nat_us_03_29_2007

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

http://www.nist.gov/

Bridge--No definition.

Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.

Culvert--No definition.

Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Add the following:

Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition

Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change--“Change” means “change order” as used in the Federal Acquisition Regulations, or

“design change” as used in the Timber Sale Contract.

Design Quantity--“Design quantity” is a Forest Service method of measurement from the FS-96

Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.

Forest Service--The United States of America, acting through the Forest Service, U.S.

Department of Agriculture.

Neat Line--A line defining the proposed or specified limits of an excavation or structure.

Purchaser--The individual, partnership, joint venture, or corporation contracting with the

Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse--A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order--An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36

CFR, part 260.

Schedule of Items--A schedule in the contract that contains a listing and description of construction items, quantities, units of measure, methods of measurement, unit price, and amount.

Utilization Standards--The minimum size and percent soundness of trees described in the specifications to determine merchantable timber.

102 - Bid, Award, and Execution of Contract

102.00_nat_us_02_16_2005

102 Delete

Delete Section 102 in its entirety.

103 - Scope of Work

103.00_nat_us_02_16_2005

103 Delete.

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

104.01_nat_us_06_16_2006

104 Control of Work.

Delete Sections 104.01, 104.02, and 104.4.

104.03_nat_us_03_23_2004

104.03 Specifications and Drawings.

Add the following:

(c) As-Built-Plans. Furnish one set of as built plans. The Government will provide one set of contract plans to be used exclusively for recording the as-built details of the project. Use red pencil or red ink to record the information on the as-built plans.

Note all additions or revisions to the location, character, and dimensions of the prescribed work shown on the contract plans. Line out all details shown that are not applicable to the completed work. Check off details shown that were incorporated into the completed work without change.

Retain the plans at the project site and, as work progresses, continually update them to reflect the as-built details. Upon request, make the plans available to the CO to review for compliance with these specifications.

Show the following types of changes on the as-built plans:

(1) Typical section(s)

(a) Revisions in dimensions

(b) Revisions in materials

Furnish the as-built working plans to the CO before the final inspection. Correct all details found during the final inspection that are not shown on the as-built plans and return to the CO within 5 days.

104.05_nat_us_03_23_2004

Add the following subsections:

104.06 Load Restrictions.

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

Colorado Department of Transportation (CDOT) will require a Temporary Traffic Control Plan for this project, due to the immediate vicinity of State Highway 133. Permit submittal and CDOT approvals are the responsibility of the Contractor. For more information on CDOT permits, contact:

Safety & Traffic Engineering Branch

Colorado Department of Transportation

4201 East Arkansas Ave.

Denver, CO 80222-3400

303-757-9841

104.07 Other Contracts.

The contractor shall schedule activities to coordinate and cooperate with other contracts, including any active CDOT contracts, when applicable.

106 - Acceptance of Work

106.01_nat_us_07_31_2007

106.01 Conformity with Contract Requirements.

Delete Subsection 106.01 and substitute the following:

Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.

References to standard test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the methods in effect on the date of solicitation for bids.

Perform all work to the requirements shown on the plans or specified in the contract.

Incorporate manufactured materials into the work according to the manufacturer’s recommendations or to these specifications, whichever is more restrictive.

Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.

When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, pipe conduits, etc., that are identified by gauge, unit mass, section dimensions, etc.), the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.

The Government may inspect, sample, or test all work at any time before final acceptance of the project. When the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site. If Contractor testing and inspection is verified by the Government, the Contractor’s results may be used by the

Government to evaluate work for acceptance. Do not rely on the availability of Government test results for process control.

Acceptable work conforming to the contract will be paid for at the contract unit bid price. Three methods of determining conformity and accepting work are described in Subsections 106.02 to

106.04 inclusive. The primary method of acceptance is specified in each Section of work.

However, work may be rejected at any time it is found by any of the methods not to comply with the contract.

Remove and replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted, at no cost to the Government.

(a) Disputing Government test results. If the accuracy of Government test results is disputed, promptly inform the CO. If the dispute is unresolved after reasonable steps are taken to resolve the dispute, further evaluation may be obtained by written request. Include a narrative describing the dispute and a proposed resolution protocol that addresses the following:

(1) Sampling method;

(2) Number of samples;

(3) Sample transport;

(4) Test procedures;

(5) Testing laboratories;

(6) Reporting;

(7) Estimated time and costs; and

(8) Validation process.

If the evaluation requires additional sampling or testing be performed, mutually agree with the Government on witnessing procedures and on sampling and testing by a third party laboratory. Use a third party laboratory accredited by the AASHTO accreditation program.

Provide proof of the laboratory’s accreditation for the test procedures to be used. Do not use the same laboratory that produced the disputed Government test results or that produced the test results used as a basis for the dispute.

The CO will review the proposed resolution protocol and may modify it before final approval and execution.

The Government will use the approved resolution protocol test results to determine the validity of the disputed testing. If the Government test results are validated, the Contractor will be responsible for all costs associated with developing and performing the resolution protocol. If the Government test results are not validated, the Government will be responsible for all costs associated with developing and performing the resolution protocol.

If the validity of the Government test results cannot be determined, the Contractor and

Government will equally share all costs associated with developing and carrying out the resolution protocol.

(b) Alternatives to removing and replacing non-conforming work. As an alternative to removal and replacement, the Contractor may submit a written request to:

(1) Have the work accepted at a reduced price; or

(2) Be given permission to perform corrective measures to bring the work into conformity.

The request must contain supporting rationale and documentation. Include references or data justifying the proposal based on an evaluation of test results, effect on service life, value of material or work, quality, aesthetics, and other tangible engineering basis. The CO will determine disposition of the nonconforming work.

106.05 Statistical Evaluation of Work and Determination of Pay Factor (Value of Work).

Replace the entire section with the following:

Statistical evaluation of the work will not be required. All specifications referring to this

Subsection shall instead be referred to Subsections 106.02 through 106.04 as appropriate for the work performed.

106.07_nat_us_05_11_2004

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

107.02_nat_us_02_17_2005

107.02 Protection and Restoration of Property and Landscape.

Any routes or areas used during construction that are disturbed shall be rehabilitated by scarifying compacted areas, and seeding according to FP-03 Section 625 - Turf Establishment and the applicable SCRs.

Work within the channel is prohibited.

107.05_nat_us_05_11_2004

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06_nat_us_06_16_2006

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

107.08_nat_us_05_11_2004

107.08 Sanitation, Health, and Safety.

Add the following:

The Contractor shall provide on-site toilets meeting all OSHA and State requirements concerning sanitation facilities at the job site.

Perform all operations in a prudent, safe, conscientious and professional manner. Ensure that all personnel involved in handling or packaging hazardous waste are trained for the level of expertise required for the proper performance of the task and, in particular, in the areas of chemical incompatibility, general first aid procedures and spills. Provide handling and personal protective equipment appropriate to ensure safe handling of the hazardous waste according to 29

CFR 1910.120. Notify the Forest Service of all hazardous material that may be brought onto the

National Forest.

107.09_nat_us_06_16_2006

107.09 Legal Relationship of the Parties.

Delete the entire subsection.

107.10_nat_us_06_16_2006

107.10 Environmental Protection.

107.10_nat_us_06_16_2006

Add the following:

Locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential impacts and impacts of hazardous material spills on National Forest land.

Before beginning any work, submit for acceptance a Hazardous Spill Plan that lists actions to be taken in the event of a spill. Incorporate measures to be taken, such as the location of mobile refueling facilities, the storage and handling of hazardous materials, and similar information.

The contractor is solely responsible for all leaks and spills that occur during the performance of this contract.

Immediately notify the CO of all hazardous material spills. Provide a narrative written report no later than 24 hours after the initial report and include the following:

Description of the item spilled (include identity, quantity, manifest number, and other identifying information).

Whether amount spilled is EPA or state reportable, if it was reported, when and to whom.

Exact time and location of the spill including a description of the area involved.

Containment procedures.

Summary of any communications contractor had with news media, Federal, state and local regulatory agencies and officials, and Forest Service officials.

Description of clean-up procedures employed or to be employed at the site including final disposition and disposal location of spill residue.

When available provide copies of all spill related clean up and closure documentation and correspondence from regulatory agencies.

108 - Prosecution and Progress

108.00_nat_us_02_16_2005

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.02_nat_us_03_25_2004

109.01 Measurement of Work

Replace the fifth paragraph with the following:

Submit measurement notes to the CO as directed. For lump sum items, submit documentation as required by the CO to support invoiced progress payments.

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

Add the following:

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

(b) Cubic Yard.

Change the following:

“(b) Cubic yard” to “(c) Cubic yard”.

Delete methods (2) and (4)

Add the following definition:

(p) Thousand Board Feet (Mbf). 1,000 board feet based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminated timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.

109.00_nat_us_02_17_2005

Delete the following entire subsections:

109.05 Scope of Payment

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

151 – Mobilization

151.00_R1_10_11_2006

Delete Section 151 in its entirety and replace with the following.

Description

151.01 This work consists of moving personnel, equipment, material, and incidentals to the project, including treated timber running planks as described in the following subsection; and performing all work necessary before beginning work at the project site; obtaining of permits, insurance, and bonds. This work also includes washing and treating construction equipment and vehicles necessary for equipment transport to remove seeds, plants, and plant fragments before the equipment is used on Forest Service lands, according to the requirements within.

151.02 Government Furnished Materials.

Approximately 1000 linear feet of 3”x12” treated timber planks, in 10 foot and 12 foot lengths, stored by the government shall be loaded and transported to the project site. 72 hours’ notice shall be provided to the CO. Planks are located at:

1168 County Road 116

Glenwood Springs CO 81601

A written access plan shall be submitted to the Forest Service for approval prior to accessing the sites. The access plan shall list all equipment, motorized and non-motorized, the Contractor proposes to use to access the site.

Construction Requirements

Clean all construction equipment prior to entry onto the project area. Remove all dirt and plant parts and material that could carry noxious weeds and seeds into the project area. Only construction equipment so cleaned and inspected by the Forest Service will be allowed to operate within the project area. Treat all subsequent move-ins of equipment in the same manner as initial move-ins. “Construction equipment” includes all vehicles and equipment brought within the project area or approved staging areas.

Prior to the initial move-in, the Contractor shall make all construction equipment available for inspection by that Forest Service at an agreed-upon location, Provide the Forest Service at least

72 hours advance notification when equipment is ready for inspection. Notification will include an agreed upon location where the equipment will be available for inspection by the Forest

Service. Inspection will be required after every cleaning.

New infestations of noxious weeds, of concern to Forest Service and identified by either

Contractor or Forest Service, on the Project Area or on the haul route, shall be promptly reported to the other party. Contractor and Forest Service shall agree on treatment methods to reduce or stop the spread of noxious weeds when new infestations are found. A current list of noxious weeds of concern to Forest Service is available at each Forest Service office.

Equipment cleaning shall be done outside the water influence zone as approved by the CO or off

National Forest lands, in accordance with all federal, state and local laws. The Contractor shall inspect the equipment daily for leaks prior to use.

Measurement

Measure mobilization according to Subsection 109.02.

Payment

151.03 The accepted quantity, measured as provided in Subsection 109.02, will be paid at the contract price per unit of measurement for the Section 151(01) pay item shown in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See

Subsection 109.05.

Progress payments for mobilization lump sum will be paid as follows:

(a) If applicable, bond premiums will be reimbursed according to FAR Clause 52.232-5

Payments Under Fixed-Price Construction Contracts, after receipt of the evidence of payment.

(b) When 5 percent of the original contract amount is earned from other bid items, 50 percent of the mobilization item, or 5 percent of the original contract amount, whichever is less, will be paid.

(c) When 10 percent of the original contract amount is earned from other bid items, 100 percent of the mobilization item, or 10 percent of the original contract amount, whichever is less, will be paid.

(d) Any portion of the mobilization item in excess of 10 percent of the original contract amount will be paid after final acceptance.

Include all costs associated with the initial cleaning of equipment in the unit bid price for

Mobilization. Cleaning for subsequent move-ins will not be paid for unless after a suspension ordered by the CO.

152 - Construction Survey and Staking

152.00_nat_us_08_05_2005

Delete entire section and replace with the following:

152.01 General.

Establish reference, control lines, or stakes as necessary to control alignment.

152.02 Payment.

Delete the entire subsection and add the following:

All equipment, labor, materials, and incidentals required for Construction Survey and Staking shall not be measured or compensated for separately, but shall be incidental to pay item 557(032)

153 - Contractor Quality Control

153.02_nat_us_02_17_2005

153(03) Testing.

Add the following:

The contractor shall submit to the CO current documentation of the calibration and inspection of the testing equipment to be used for the project. The documentation shall include inspection date, inspector, calibration number, and method of calibration. All testing equipment shall be calibrated and inspected and tagged as described above.

153.04_nat_us_10_24_2007

153.04 Records.

Delete all but the first sentence

154 - Contractor Sampling and Testing

Delete this section in its entirety.

155 - Schedules for Construction Contracts

155.00_nat_us_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

156 – Public Traffic

Delete Section 156 in its entirety and replace with the following:

156.01 Description.

This work applies to National Forest System lands and easements only, and consists of controlling and protecting public traffic adjacent to and within the project. Perform work in a manner that ensures the safety and convenience of the public and protects improvements, natural resources and/or facilities adjacent to the site. Accommodate public traffic on roads adjacent to and within the project until the project is accepted by the CO.

156.02 General.

The Contractor shall prepare a Temporary Traffic Control Plan (TTC plan) for the project in accordance with MUTCD and Colorado Department of Transportation requirements, due to the immediate proximity of the bridge to State Highway 133. This approved plan shall be provided to the agency for review and acceptance a minimum of 20 working days prior to the start of construction.

156.03 Temporary Traffic Control Plan.

This work consists of furnishing, maintaining, relocating and moving temporary traffic control devices for the control and protection of traffic through the project, and shall be provided in writing and must be prepared and signed by a qualified Professional Civil Engineer or

Transportation Engineer licensed in the State of Colorado. Supporting references from documents such as the MUTCD or Forest Service Manual EM 7100-15, will be provided for all devices and plans.

The TTC Plan addresses traffic safety and control through the work zone and addresses sustained operations and management of the work zone impact area. The Operator/Contractor shall manage the work zone impacts of the project in accordance with the CDOT approved TTC and as conditions warrant.

A. Install and maintain traffic control devices as follows:

1. Furnish and install traffic control devices before the start of construction operations.

2. Install only those traffic control devices needed for each stage or phase.

3. Relocate temporary traffic control devices as necessary.

4. Remove devices that no longer apply to the existing conditions.

5. Immediately replace any device that is lost, stolen, destroyed, or inoperative.

6. Keep temporary traffic control devices clean.

7. Remove all temporary traffic control devices upon contract completion or when approved.

8. When required, use flaggers, flagger paddles, personal protective equipment in accordance with CDOT requirements.

B. Qualifications:

1. Traffic and Safety Supervisor. Provide a traffic and safety supervisor who is certified by a state highway agency or other acceptable certification program. Furnish the supervisor’s name, address, 24-hour telephone number prior to the start of the work.

C. At all times, during the project, including periods of suspension and shutdown, perform all of the following:

1. Implement traffic control plan.

2. Ensure the condition and placement of traffic control devices in use.

3. Immediately correct deficiencies.

4. Coordinate traffic control operations with the Contracting Officer.

156.04 Limitations on Construction Operations.

Road closure may only occur as follows; unless CDOT requirements are more stringent, in which case that CDOT-approved TTCP will define those requirements.

Closure can occur for 50 minutes each hour from 9:10 A.M. to 4:00 P.M. with the road opening for ten minutes at the top of every hour, as follows:

Allowable Closure Schedule

9:10 AM – 10:00 A.M.

10:10 AM -11:00 A.M.

11:10 A.M. – 12:00 P.M.

12:10 P.M. – 1:00 P.M.

1:10 P.M – 2:00 P.M.

2:10 P.M. – 3:00 P.M.

3:10 P.M. – 4:00 P.M.

Contract work can occur outside of that timeframe, provided the approved TTCP addresses the additional parameters to be considered outside of the above hours.

No work shall occur on weekends or holidays. A weekend is considered to begin at noon on

Friday and end at midnight on Sunday. Holidays include Memorial Day, Independence Day, and

Labor Day. No work shall occur between midnight the Thursday prior to the holiday until midnight of the holiday. For Independence Day no work shall occur from noon July 3 rd through noon July 7th.

156.05 Acceptance.

Public traffic will be evaluated under Subsections 106.02, 106.03, and 106.04.

156.06 Method.

Individual work or construction items will not be directly measured for payment, except for those items shown below and included in the Schedule of Items.

156.07 Basis.

The accepted quantities will be paid for at the contract unit price for each PAY ITEMS IN THE

SCHEDULE OF ITEMS.

Payment will be made under:

Pay Item Pay Unit

156(01) Temporary Traffic Control LS

157 - Soil Erosion Control

157.03_0510_us_01_20_2005

Materials

Delete this subsection and replace with:

157.02 Conform to the following:

Debris Retention system shall consist of a two-layer system consisting of a wide-gap mesh net panel overlain with a mesh layer. Panels shall have ½ inch diameter polypropylene cord web borders and stainless steel grommets at 24” on center, to provide for lifting, securing, and removing system.

Panels shall meet the following materials requirements:

Mesh Net Panel

1/8 inch diameter polypropylene cord

Breaking Strength: 250 lb./ft. minimum

Mesh Size: 2 inch square opening

Dynamic Drop Test: ANSI A10.11, 3,000 pound dynamic load

Mesh Layer Panel

Knit polyethylene fiber

Breaking Strength: 200 psi Warp

MD (LB) 100 (minimum)

Burst Strength: 160 lbf minimum per ASTM D 3787-01 (Ball Burst)

Mesh Size: 1/8 inch

Air Permeability: Minimum 4000 CFM/SF per ASTM D 737-96

157.03 General.

Delete the first two paragraphs and add the following:

Submit an Erosion Control Plan detailing temporary control measures to minimize erosion and sedimentation during and after deck cleaning and construction according to the contract specifications, contract permits, Section 107, and this Section. Contract permits amend the requirements of this Section. Do not modify the type, size, or location of any control or practice without CO approval. Submit the erosion control plan proposal to the Contracting Officer for approval at least 20 days before operations begin.

Reflect in the erosion control plan special concerns and measures necessary to protect resources and government improvements. Include:

1. The construction methods and sequence of implementation relating to erosion control measures, including the Debris Retention System.

2. Any manufacturer specifications, instructions, or other information pertaining to all materials.

3. The location and type of temporary erosion controls to be implemented during construction.

4. Indicate actions to be taken if erosion control methods are not functioning as intended.

5. Describe what monitoring will take place.

Add to the third paragraph:

Upon completion all equipment and materials, including erosion control materials and the Debris

Retention System are to be removed from Government property and become property of the

Contractor, to be disposed of in accordance with state, local and federal requirements.

157.04. Controls and Limitations on Work:

Delete this subsection and replace with:

Debris retention system sections shall be draped to form a continuous barrier under the full width of the bridge and extending upward on each side of the bridge a minimum of 6’.

To hold panels above sides of bridge to catch all debris, upright support beams/poles shall be used at 10’ intervals along the length of each side of the bridge. Beams/poles shall be fastened to the bridge deck at their base and shall be of sufficient strength to hold all debris and water during bridge deck cleaning operations. Support beams/poles shall be canted outward slightly, and system panels shall be draped loose enough to allow adequate space for all water and debris to be fully captured when pressure-sprayed off bridge deck.

Longitudinal overlap of sections shall not be less than 3’ or that which ensures no release of debris at section joints.

Removal of debris retention system shall be performed such that the system and it’s debris remains above water level at all times.

Delete Subsections 157.05 through 157.12

Delete Section 157.15

157.16 Payment.

All materials for Debris Retention System, and other erosion control materials will be paid for under 157(01) as a single Lump Sum Quantity. All equipment, labor, and incidentals required for

Debris Retention System and Soil Erosion Control installation, maintenance and removal shall not be measured separately, but shall be incidental to Pay Item 557(03).

203 – Removal of Structures and Obstructions

203.01 Description

This work consists of the removal of the existing running planks and associated hardware and erosion control materials. The Contractor shall provide a demolition and removal plan to the CO prior to commencing work. The plan shall address all related equipment, sequence of work, procedures, and safety provisions. CO approval of the plan will not reduce the Contractors liability relating to the plan and its implementation.

Contractor shall ensure deck surface undamaged from the removal of planks and hardware. All materials removed shall become the property of the contractor and shall be removed and disposed of in accordance with federal, state and local requirements.

203.05 Disposing of Material.

203.08 Payment

All removal work associated with this section, including all equipment, labor, materials, and incidentals shall not be measured separately, but shall be incidental to item 557(03).

557 - Timber Structures

557.01 General.

The work shall consist of mobilizing Government-provided timber planks; supplying all project hardware; installing, maintaining, removing and disposing of a netting and mesh debris containment system under the bridge; removing and disposing of existing timber decking planks and hardware; pressure cleaning deck; treating all scrapes, cuts and field cuts; installing running planks.

All fabrication, erection, and construction shall be performed in accordance with the FP-03, standard plans, SCRs, and approved Contractor-provided supplemental specifications.

Construction shall include furnishing all labor, materials, equipment, tools, transportation, supplies, manufacture and or fabrication, storage, erection, and other incidentals required to complete the contract in accordance with the drawings, specifications and in accordance with provisions of the contract.

557.02 Submittals

The Contractor shall also furnish, for approval by the CO, the submittals outlined in SECTION C

– SPECIAL CONTRACT REQUIREMENTS, as well as any additional submittals determined necessary by the contractor.

Submittals shall include, but not be limited to:

(1) Final Schedule of Items for additional lumber and all hardware,

(2) Construction Schedule, and

(3) Manufacturer shop drawings and information related to proposed products.

(4) Certification of Materials: Certified Mill Test Reports shall be furnished for the treated timber.

The Contractor shall furnish material compliance certificates to the Contracting Officer’s

Representative upon delivery of the materials to the job site. Forest Service shall accept the

Schedule of Items before materials are ordered.

Construction work may commence after the submittals described above have been approved by the Contracting Officer and approval of any shop drawings, etc. required under Specifications and Drawings for Construction (FAR 52.236-21 Apr 1984).

Materials

557.03 General.

All materials used shall meet the applicable contract specifications, SCRs, and Drawings. All materials shall be new.

Structural Metal 717

Material for Timber Structures 716

Wood: Furnish an inspection certificate from an agency accredited by the American Lumber

Standards Committee for the species and grade. Mark all pieces with the inspection service, grade designation, species and Inspector identity.

Wood shall be pressure treated. Incise all wood and make dimensional cuts before pressure treatment. Planks shall be treated with Copper Napthanate (CuN) in heavy oil (Type A solvent)

Use Category 4B, minimum retention = 0.075/pfc. At the time of delivery to the site, all treated wood shall be dry to the touch with no residual treatment

Field Treatment: Copper Napthanate (2% solution) shall be utilized for field treating of wood.

All abrasions and field cuts shall be carefully trimmed and given three brush coats of the field treatment solution, allowing each coat to dry prior to apply the next coat. All field drilling and lumber cuts shall be field treated the same.

557.04 Hardware and Incidental Materials.

Wood screws shall conform to ANSI/ASME B18.1. Malleable washers shall conform to ASTM

A47. Nails or spikes shall conform to ASTM F1667. Ring shanks nails shall be used for permanent nail installations. Domed headed bolts should be used if possible for bolted timber connection exposed to traffic.

The Contractor shall furnish 10 percent more hardware to ensure an adequate supply.

All hardware shall be in sealed containers for shipping and storage.

General.

557.05 Treated Timber.

Running Planks shall be installed parallel to the centerline of the bridge. Stagger adjacent joints by 2' - 6" minimum. Running plank fasteners shall be staggered plus a minimum of two fasteners at the end of each board. Running plank fasteners shall be countersunk. Bolted or lag screw timber connections shall have a malleable washer under all bolt heads and nuts to prevent crushing. Timber bolted connections shall have their threads burred to prevent loosening after final tightening. Timber bolt holes shall be 1/8” larger than the diameter of the bolt.

All timber lag screws and wood screws shall have pilot holes in accordance with National

Design Specifications for Wood Construction (NDS) and based on species of wood.

557.06 Special Construction Requirements.

(a) Construction Access & Protection - The Contractor is responsible for securing the project area from the public. This includes providing the necessary security for protection of the

Contactors' materials, equipment, tools and work until final acceptance by the Government. The

Contractor shall also provide sufficient signs, barriers, barricades, markers, etc. to warn and protect the public from injury.

(b) Any routes or areas used during construction that are disturbed shall be rehabilitated by restoring to the natural contour, scarifying compacted areas, and seeding according to FP-03

Section 625 - Turf Establishment and the applicable SCRs.

557.07 Acceptance.

Installation of the running planks and hardware will be evaluated under Subsections 106.02, 106.03, and 106.04.

557.08 Method.

Individual work or construction items will not be directly measured for payment, except for those items shown below and included in the Schedule of Items.

557.09 Basis.

The accepted quantities will be paid for at the contract unit price for each PAY ITEM IN THE

SCHEDULE OF ITEMS.

Payment will be made under:

Pay Item Pay Unit

557(01) Supply and Deliver Additional Planks LF

557(02) Hardware LS

557(03) Remove and Replace Running Planks LS

717 – Structural Metal

717.07 Galvanized Coatings

Add the following:

Furnish hot-dipped galvanized hardware and fasteners conforming to AASHTO M 232 and mechanically galvanized hardware and fasteners conforming to AASHTO M 298. Repair damaged galvanized surfaces by power or hand tool cleaning, followed by 2 brush applications of zinc rich 2 component paint meeting FS TT-P641, FS TT-P-1046A or MIL-P-21035. Single component brush or spray-on zinc or galvanizing compounds are not permitted. A source for TT-

P-641 paint is Far West Paint Company, Tukwila, WA 206-244-8844.