SPECIFICATIONS.pdf

Specification List For

Fall Creek Trail Bridge Rehab

All specifications refer to Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-03).

Division 100 - General Requirements

Section 155 – Schedules for Construction Contracts

Section 557 – Timber Structures

Section 571 – General Conditions

Section 904 – Maintenance for Traffic

Table of Contents

Table of Contents Preface 101 - Terms, Format, and Definitions 102 - Bid, Award, and Execution of Contract 103 - Scope of Work 104 - Control of Work 105 - Control of Material 106 - Acceptance of Work 107 - Legal Relations and Responsibility to the Public 108 - Prosecution and Progress 109 - Measurement and Payment 155 - Schedules for Construction Contracts 557 - Timber Structures 571 - General Conditions 904 - Maintenance for Traffic

Preface

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Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-03 for construction of National Forest System Roads.

101 - Terms, Format, and Definitions

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101.01 Meaning of Terms

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

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101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NIST

NESC

WCLIB

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

Add the following to (b) SI symbols:

mp Milepost ppm Part Per Million

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101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

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.

Pioneer Road--Temporary construction access built along the route of the project.

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, unit price, and amount.

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

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms.

102 - Bid, Award, and Execution of Contract

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102 Bid, Award, and Execution of Contract

Delete Section 102 in its entirety.

103 - Scope of Work

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Deletions

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

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Deletions

Delete Sections 104.01, 104.02, and 104.04.

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Add the following subsection:

104.06 Use of Roads by Contractor

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.

105 - Control of Material

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105.02 Material Sources.

105.02(a) Government-provided sources.

Add the following:

Comply with the requirements of 30 CFR 56, subparts B and H. Use all suitable material for aggregate regardless of size unless otherwise designated. When required, re-establish vegetation in disturbed areas according to section 625.

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105.05 Use of Material Found in the Work.

Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:

Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.

106 - Acceptance of Work

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106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

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107.05 Responsibility for Damage Claims.

Delete the entire subsection.

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107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

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107.09 Legal Relationship of the Parties.

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107.10 Environmental Protection.

Add the following:

Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.

Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

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

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

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

Containment procedures.

Summary of any communications the Contractor had with news media, Federal, state and local regulatory agencies and officials, or 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.

The Contractor is solely responsible for all spills or leaks that occur during the performance of this contract. Clean up spills or leaks to the satisfaction of the CO and in a manner that complies with Federal, state, and local laws and regulations.

108 - Prosecution and Progress

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108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

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109 Deletions

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

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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.

Change the following:

“(b) Cubic yard” to “(c) Cubic yard”.

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.

155 - Schedules for Construction Contracts

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155 Delete.

Delete Section 155 in its entirety.

Section 557 – Timber Structures

Description

557.01 Work.

Add the following to the end of this section:

The Contractor shall furnish, fabricate, and install the preservative treated timber members to replace the damaged timbers for each bridge maintained in accordance with Section 557 and the project drawings.

All timber elements shall be fully fabricated to required lengths prior to timber being pressure treated. All drilled holes shall be 1/8” larger than the bolt diameter. Field cut timbers shall be treated with 3 brushed on coats of Copper Naphthenate. Field drilled holes should not used by a bolt, lag screw or wood screw shall be filled with Copper Naphthenate, drained of preservative, and plugged with a treated hardwood plug. If the hole is into the bottom of a timber member, perservative can be squirted up into the hole. Any field damage to treated timbers shall be treated with 3 brushed on coats of a Copper Naphthenate solution. Protective eyewear, clothing and spill protection shall be used when field treating timber members.

When dimensions are shown on the drawings, or stated in the specifications they shall be considered as a convenience to the contractor. The contractor shall check and verify the quantities of timber and hardware needed, and verify the correct dimensions to ensure accuracy. Any errors or omissions in the material lists shall not be cause for an adjustment of the contract price paid.

All timber or lumber shall be graded and finished in accordance with the West Coast Lumber Inspection Bureau (WCLB) "Grading and Dressing Rules", current edition.

At the option of the contractor, the lumber or timber may be graded under the "Grading Rules for Western Lumber" issued by Western Wood Products Association (WWPA), current edition, provided that an equivalent specification to the WCLB paragraph applies. In addition to the requirements referred to in this paragraph, all lumber shall be supplied such that the moisture content shall not exceed 19% prior to treatment.

Materials

557.02 Requirements.

Add the following to Subsection (a):

Verification of compliance includes the following:

Before any timber is delivered to the project site, the contractor shall furnish to the CO a "Certificate of Grade," issued by an independent inspection agency. The certificate shall cover only the material being supplied for this contract. Each piece of timber shall be hammer branded by the inspector. A grading agency which does not use a hammer brand will not be considered an approved agency.

Add the following to Subsection (b):

Verification of compliance includes the following:

Before any timber is delivered to the project site, the contractor shall furnish to the CO a "Certificate of Inspection of Treatment," issued by an independent inspection agency. The certificate shall cover only the material being supplied for this contract, and shall certify that the treatment has met the provisions of these specifications.

The CO shall have the right to inspect the material at the delivery point. All timber or lumber not conforming to the provisions of this Subsection 557.02 shall be rejected.

Section 571 – General Conditions

Description

571.01 Maintenance and Construction. Trail bridge maintenance and construction shall comply with the "Standard Specifications for Construction of Roads and Bridges oh Federal Highway Project, FP-03” with the following changes, these Supplemental Specifications, and the Project Drawings.

571.02 Work. Provide all labor, materials, and equipment necessary to complete repairs and maintenance on the Fall Creek trail bridges including, but not limited to, mobilization; , removal of necessary material, fabrication, delivery and installation of open web joists, treated timbers for running planks, rail posts, rails and fence; post cross ties; disposal of broken or unused timbers off national forest lands; minor clearing; miscellaneous maintenance items; and cleanup.

No camping will be allowed at the Falls Creek Trail Bridge location or within the wilderness area adjacent to this project. Camping will be allowed at the adjacent campgrounds with appropriate fees.

571.03 Project Location. The Falls Creek Trail Bridge, No. 529-0.1, is located on the Columbine Ranger District of the San Juan National Forest in Section 16, T37N, R6W, N.M.P.M. adjacent to the Weminuche Wilderness Area, approximately 15 miles northeast of Durango, Colorado via County Road (CR)501, and CR 500.

571.04 Execution. The bridge project rehab shall conform with each of the following items.

(1) The Fall Creek Trail Bridge is located near the Weminuche Wilderness

Area. A small mini-excavator type piece of equipment will be allowed to the site for work. Mechanized and motorized tools will be allowed on this project.

(2) Borrow sites for embankment backfill or riprap rock will be designated by the CO. Borrow sites shall be contoured and feathered to conform to adjacent areas. Trails accessing borrow areas shall be rehabilitated to conform to adjacent areas.

(3) Construction Schedule. Ten days prior to starting any work, the

Contractor shall submit a proposed work schedule. The schedule shall minimize conflict between construction activities and the planned use of the area by the Forest Service. The schedule shall be approved by the CO prior to starting any work. The bridge site may not be closed without written consent of the CO as per Section 904. It is the intent that the Contractor shall cooordinate all materials submittals, shop drawings, approvals and ordering materials with the CO prior to the beginning of contract time. The contract time allowed is intended for the on site work.

The schedule may be adjusted due to weather conditions.

571.05 Trail Bridge Maintenance Items. The following items shall be completed for each bridge listed.

(a) Fall Creek Trail Bridge No. 529-0.1. This trail bridge is a single span, 35 feet length, end to end, 7 feet wide, out to out, and consists of 2 spliced 18LH-07 open web stringers (Vulcraft), supported on cast in place concrete abutments, with treated timber deck, rails and posts. An aspen tree fell across this bridge during the fall of 2008, damaging some bridge timber, and bending the open web stringers on one half of the bridge. This project will replace the two bent sections of the bridge and replace any damaged bridge timbers. This project will also replace the worn timber running planks.

(1) Remove and salvage any bridge timbers necessary to replace the bent halves of the open web stringers. Bridge timbers and steel which are damaged, and cannot be reused, shall be disposed of properly off federal lands, in accordance with all local, state and federal laws.

(2) Procure and replace the bent halves of the open web stringers. The contractor shall be responsible for measuring, and verifying open web stringers prior to ordering material for replacement. A shop drawing shall be submitted of appropriate joist. Current open web stringers are manufactured by Vulcraft, and are model 18LH07, with a single middle splice.

(3) Install removed/salvaged bridge timbers. Procure and replace all broken bridge timbers that were damaged prior to construction, or during construction. All bridge timber shall be pressure treated per specifications.

(4) Procure and install new running planks. Old running planks shall be disposed of properly off federal lands. Some running planks are damaged, others are not. The intent is to replace all running planks.

(5) Place borrow fill material and/or recondition the trail approaches to restore the trail grades up to the trail bridge deck level. Remove protruding rocks from the trail tread within 25 feet of each bridge end.

Utilize on site riprap rock to construct rock crib walls adjacent to the trail tread to retain the fill if necessary.

(6) Perform minor clearing, grubbing and limbing of existing vegetation adjacent to the trail approaches to provide a minimum of 10 feet horizontal and 10 feet vertical clearance centered on the trail, within 25 feet of each bridge end. Also perform clearing and limbing of streambed 20 feet upstream and downstream measured from the centerline of bridge alignment. Ensure no substantial vegetation is affecting the bridge or bridge abutments.

(7) Add approximately 1 cubic yard of class 1 riprap, per Specification 251, at the base of abutments to protect abutments and abutment walls from erosion.

Measurement

571.06 Method. The bridge maintenance project will be measured complete and in-place, ready for use and will include mobilization; maintenance for trail traffic;

clearing and grubbing; removal, procurement and replacement of damaged existing open web joists; fabrication, delivery and installation of treated timbers; placing fill material for trail approaches; placing riprap rock; hardware; miscellaneous maintenance items; and cleanup.

571.07 Payment. The bridge maintenance project will be paid for at the contract lump sum unit price as designated in the Schedule of Items for each bridge maintained.

Pay Item PayUnit

571 (01). Fall Creek Trail Bridge No. 529-0.1 .............................. Lump Sum

Section 904 – Maintenance for Traffic

904.01 General.

Add the following paragraph to the beginning of this section:

Trails and trail bridges receive a considerable amount of hiker and horse use and may not be closed without written consent of the Contracting Officer (CO). The Contractor shall have in place sufficient signs and lookouts to inform and protect Forest users and livestock during project operations. This trail bridge may be closed with written consent of the Contracting Officer (CO).