J.3_Special-Project-Specs.pdf

NFSR 863 ERFO Road Repair Special Project Specifications

SPECIAL PROJECT SPECIFICATION

Preface

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

101 - Terms, Format, and Definitions

101.01 Meaning of Terms

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

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Contractor--The individual or legal entity contracting with the Government for performance of prescribed work.

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.”

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

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.

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.

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

Figure 101-1—Illustration of road structure terms.

102 - Bid, Award, and Execution of Contract

Delete Section 102 in its entirety.

103 - Scope of Work

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

Delete Subsections 104.01, 104.02, 104.03 and 104.04.

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

Delete subsection 105.02.

106 - Acceptance of Work

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

107.09 Legal Relationship of the Parties.

Delete the entire subsection.

SPECIAL PROJECT SPECIFICATION

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.

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

Delete Section 108 in its entirety.

109 - Measurement and Payment

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

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”.

155 - Schedules for Construction Contracts

Delete Section 155 in its entirety.

ROAD CLOSED

0.25 MILES AHEAD

156 - PUBLIC TRAFFIC

156.03 Accommodating Traffic During Work.

Delete the following from the last paragraph:

According to Subsection 106.07(b)

Add the following project specific requirements:

The Contractor will be allowed to close Road No. 863 during construction. It is the responsibility of the Contractor to schedule delivery of materials, equipment and all necessary supplies to the site, to ensure that the work can be substantially completed within the above specified contract time. The Contractor shall give the COR at least two weeks advanced written notice prior to any road closure. The Contractor shall be responsible for providing, installing, maintaining, and removal of warning signs and type 3 barricades required for the road closure period. At the Contractor’s written request, traffic delays up to one hour will be approved should the project work necessitate short traffic delays outside the closure period. Road closure shall be coordinated with McKenzie County Road Department.

Contractor shall provide and install two road closed ahead signs for the duration of the project.

The road closed signs are to be placed ¼ mile on each side of the project or at the nearest turn around point.

156.08 Traffic and Safety Supervisor.

Delete this subsection in its entirety.

156.09 Measurement and Payment

Separate measurement shall not be made and payment for this item shall be considered incidental to other items.

203 - Removal of Structures and Obstructions

203.01 Description.

Delete and replace with the following:

This work consists of removing and disposing of a culverts. The excavation for structure removal is considered incidental to this pay item. The culverts shall be disposed off of Forest Service Lands in accordance with all applicable local, state and federal regulations and or ordinances.

209 – Structural Backfill for Minor Structures

209.10 Backfill.

(a) General.

Add the following:

Replace any pipe that is distorted by more than 5 percent of nominal dimensions, or that is ruptured or broken.

Do not place or backfill pipe until the excavation and foundation have been approved by the Engineer. A 48 hour notice is required.

(b) Pipe culverts.

(1) Pipe culverts with compacted backfill.

Add the following:

Excavate an area on each side of the pipe two (2) pipe diameters or ten (10) foot wide to effectively achieve compaction requirements. Structure backfill shall continue till a depth of twelve (12) inches of cover is over the pipe. Backfill without damaging or displacing the pipe.

Complete backfilling of the trench with suitable material. Structural backfill will not be measured and shall be considered incidental to Pay Item 602-Culverts.

209.11 Compacting.

Delete the subsection and add the following:

Compact backfill using designated compaction method A:

Method A. Ensure that backfill density exceeds the density of the surrounding embankment.

Compact each layer using appropriate compaction equipment approved by the Engineer until visual displacement ceases. Compaction equipment shall be approved for use by the Engineer.

Table 209-1 Sampling and Testing Requirements

(2) Compaction method (A) does not require AASHTO T-99 or T-310 test methods for foundation fill.

251 – Rip Rap

Rip shall be placed on geotextile fabric at a depth of two (2) feet. The geotextile fabric required is estimated to be 120 square yards. The payment for geotextile shall be considered incidental and included in the schedule of items 251 – Rip Rap.

Supply Class III rip rap. The supplied rip rap shall be as specified and free from soil, vegetative matter and as detailed in section 705.2 of the FP-03 specification for hardness and angularity.

Place rip rap in one operation to provide a well graded mass of uniform thickness.

301 - Untreated Aggregate Courses

301 Title Change Change the title to: Section 301 - Aggregate Courses

301.01 Description

The quantity listed in the Schedule of Items is for surfacing 4” (four inches) depth compacted in place. Additional material shall be required to compensate for the compaction factor. The contractor shall furnish, deliver, spread and compact the material in accordance to the plans, drawings, special project specifications and specifications.

The regraded portion(s) of NFSR #863 shall have a subgrade final inspection and be accepted by the Engineer prior to placing and compacting of aggregate. Pay Item 301 shall be for this work in its entirety and no separate measurement shall be made

301.02 Material

Replace with the following:

The material supplied shall conform to and testing verification submitted to the FS before use on the project for shall be erionite free.

The material shall conform to the following gradation. Gradation analysis shall be submitted to the FS for approval prior to delivering material to the project.

Specification Requirements for Modified Class 5 Aggregate

Sieve Size Aggregate Percent Passing Mod. Class 5_

1” 100% 3/4” 90-100% No.4 35-70% No.30 16-40% No.200 10-17% Shale 12% Max

SPECIAL PROJECT SPECIFICATION

L.A Abrasion 50% Plasticity Index - Fractured Faces 10%

301.03 General

Request written approval by the Engineer of the roadbed a minimum of forty-eight (48) hours before the placing of aggregate.

301.04 Mixing and Spreading

Delete the first sentence of the first paragraph and add the following:

Spread the aggregate in a uniform layer, with no segregation of size, and to a loose depth that will provide the required compacted thickness. Route and distribute leveling equipment over the width and length of each layer.

301.05 Compacting

Delete and replace with the following:

Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road.

Compact the aggregate with the following method specified:

Compaction B: Operate equipment and compact as specified in 204.11

For all compaction methods, blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface.

301.06 Surface Tolerance

Delete the first paragraph and add the following:

Thickness and Width requirements:

The maximum variation from the compacted specified thickness is ½ inch. The compacted thickness shall not be below the specified thickness and the average thickness of two (2) random measurements for the road segment is within + 1/2 inch of the specified thickness.

The maximum variation from the specified width will not exceed +12 inches at any point..

301.09 Measurement.

Replace the second paragraph with the following:

Measure aggregate by cubic yard compacted in place when payment is by contract quantities.

301.10 Payment

Delete the following:

adjusted according to Subsection 106.

303 – Road Reconditioning

303a – Road reconditioning for the entire road shall consist of reshaping the travel surface from the starting point to the ending point including thru the repair areas to provide a uniform travelway from start to end. A ditch line shall be shaped as per the typical section with a minimum of two (2) foot separation from the shoulder of the road to the bottom of the ditch at a minimum of 2:1 inslope and daylighting on the back slope.

Areas of the existing ditch line have silted in and it is anticipated that the material removed can be blended into adjacent terrain/back slope and slump material can be placed/wasted on the opposite fill slope and or used in the culvert repair areas. Material placed on the fill slope shall be shaped and blended into the fill slope and contoured as necessary with a 2:1 inslope or flatter. At intersecting points with culvert inlets a minimum of a four (4) foot by four (4) foot catch basin shall be reestablished and or protected insuring that the inlet is not blocked by soil and or debris from this operation and remain functional for their intended purpose.

This pay item shall not be performed until items 1-4 are completed.

The shaping of the roadway surface, depending on conditions may require the use of a water truck to moisturize the aggregate surfacing if it is in a dry condition.

Compaction shall be accomplished by operating construction equipment across the entire surface width as work progresses.

Payment shall be for this work as described in its entirety and no separate measurements shall be made.

303.1 Road Reconditioning – Slump Removal – The slump material shall be removed and placed/wasted on the fill slope side with a 2:1 slope or flatter. The material can be used in a culvert repair area. If the material is used in a culvert repair area it shall be compacted as specified in section 209 of these special specifications. Associated brush and small trees shall be reduced in size by flattening with equipment or other measures and spread uniformly on the fill inslopes to help prevent erosion and is not to be buried.

Enough material shall be removed to provide the proper ditch separation of two (2) feet.

Inslopes and backslopes shall be 2:1 or flatter.

303.2 Road Reconditioning – Ditch Restore – Restore the ditch line as staked, to the typical section as shown in the typical sections. Excess material shall be blended into the back slope or excess material can be used in the culvert repair area. If the material is used in a culvert repair area it shall be compacted as specified in section 209 of these special specifications. Other excess material can be placed on the opposite fill slope at a 2:1 slope or flatter.

303.3 Road Reconditioning – Ditch Restore – Restore the ditch line as staked, to the typical section as shown in the typical sections. Excess material shall be blended into the back slope or excess material can be used in the culvert repair area. If the material is used in a culvert repair area it shall be compacted as specified in section 209 of these special specifications. Other excess material can be placed on the opposite fill slope at a 2:1 slope or flatter.

303.4 Road Reconditioning – Reestablish Roadway Template – Reshape the roadway template by reestablishing ditchlines with a two (2) foot separation at 2:1 inslopes and backslopes minimum. Material removed from the ditches can be used to construct the roadway embankment. Material used for the roadway embankment shall not consist of topsoil or vegetative matter.

Compaction shall be accomplished by operating construction equipment over the entire width of the constructed embankment until visual displacement ceases. Over saturated material shall be dried to a condition of optimum moisture to allow for proper compaction and construction practices. The addition of water in the case of overly dry material may be necessary.

The inslope next to the creek meander (see drawing) shall be shaped and sloped (2:1) to allow for the placement of the geo textile fabric and rip rap as described in section 251 of these special project specifications.

Payment for items 303a, 303.1-4 shall be for the work described herein and no separate measurements shall be made.

602 - Culverts and Drains

All culverts identified for removal and dispose shall be removed from NFS lands and disposed of in accordance with applicable local, state and federal regulations and or ordinances.

Each new culvert installation shall require a four (4) foot x four (4) foot catch basin be constructed on the inlet end. Culverts shall be installed as per typical drawings for culvert installation. Minimum fill over the culvert shall be one (1) foot on any point in the travelway.

Culvert locations shall installed at locations staked by the engineer in the field.

Aggregate surfacing in the area of culvert replacement and removal shall be salvaged, stockpiled prior to replacement/removal. Upon completion of culvert replacement/removal place salvaged aggregate over the repair area with uniform thickness and width.

Payment shall be for the work as described in this special project specification and schedule of items. No separate measurement shall be made.

Ensure that the final installed alignment of all pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 foot, whichever is less.