FP-03 SUPPLEMENTAL SPECS.doc

SOUTH ZONE BRIDGE RESTORATION PROJECT – 2010

(Cliff Creek Bridge Replacement & Treated Timber Bridge Repairs)

FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS

Supplemental Project Specifications

To FHWA Standard Specifications for Construction of Roads and Bridges (FP-03 Edition) Idaho Panhandle National Forests

St Joe Ranger District

Table of Contents

3Preface

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 151 - Mobilization 152 - Construction Survey & Staking 153 - Contractor Quality Control 155 - Schedules for Construction Contracts 156 - Public Traffic 157 - Soil Erosion Control 201 - Clearing and Grubbing 203 - Removal of Structures and Obstructions 204 - Excavation and Embankment 208 - Structure Excavation And Backfill For Selected Major Structures 209 - Structure Excavation And Backfill 251 - Riprap 253 - Gabions and Revetment Matresses

272 - Geocell Abutment Stabilization 308 - Minor Crushed Aggregate 552 - Structural Concrete 553 - Prestressed Concrete 553A - Precast Concret Structures 574 - Bridge Repairs 622 - Rental Equipment 625 - Turf Establishment 703 - Aggregate 717 - Structural Metal 725 - Miscellaneous 736 - Geocell

Preface_wo_03_15_2004_m Preface 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 101.01_nat_us_04_04_2007

101.01 Meaning of Terms.

Add the following:

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

101.03_nat_us_06_16_2006

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:

101.04_nat_us_03_29_2007

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 102.00_nat_us_02_16_2005

102 Bid, Award, and Execution of Contract

Delete Section 102 in its entirety.

103 - Scope of Work

103.01_ipnf_us_11_20_2009 103 Delete

Delete all but subsection 103.01 Intent of Contract and add the following.

103.01 Intent of Contract.

Cliff Creek Bridge Replacement:

The project involves the removal of an existing treated timber bridge and construction of a new 50’ span bridge with a prestressed concrete trideck beam superstructure on a precast concrete grade beam foundation. The bridge is located on Forest Service Road No. 326 at mile post 3.2.

The project work includes, but not limited to; removal of existing treated timber bridge structure, minor clearing and grubbing, structural excavation, placement of riprap, furnish and installation of precast concrete grade beams and wingwalls, furnish and installation of precast prestressed concrete trideck beams, excavation and embankment, crushed aggregate surfacing, minor equipment rental work, minor stream diversion, soil erosion and pollution control, contractor construction quality control and associated minor work items.

Treated Timber Bridge Repairs – Avery & Red Ives Area The project involves the upgrades and repairs to eleven treated timber bridges in the Avery and Red Ives areas of the Idaho Panhandle National Forests.

The project work includes, but not limited to: removal and disposal of treated timber bridge components and furnish and install glued laminated curbs, glued laminated abutment posts, glued laminated wingwall posts, object markers & wood posts, welded wire gabions, placed riprap, treated timber running plank, mud sill grouting, minor hot asphalt concrete, saw cutting asphalt concrete, treated timber end bumpers, treated timber backing plank, glued laminated pier post, crushed aggregate, minor equipment rental work, stream diversions, soil erosion and pollution control, contractor construction quality control and associated minor work items.

104 - Control of Work

104.00_nat_us_06_16_2006

Deletions

Delete Sections 104.01, 104.02, and 104.04.

104.06_ipnf_us_11_20_2009 Add the following:

104.06 Use of Roads by Contractor

The Contractor is authorized to use roads and trails 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.

Commensurate with use, that section of Forest Development Road (FDR) No. 326 from MP 0.0 to MP 3.2, used by the Contractor as a haul route for delivery of materials and other construction activities will be maintained by the Contractor during project work. Commensurate road maintenance will be the responsibility of the contractor and considered incidental to other pay items shown on the bid schedule.

105 - Control of Material

105.02_ipnf_us_11_20_2009

105.02 Material Sources.

Add the following before the first paragraph.

Sources have been designated for this project as follows:

Crushed Aggregate Source – Commercial (Contractor Furnished) – There is no available Government source for Crushed Aggregate Surfacing for Cliff Creek Bridge Replacement or the Treated Timber Bridge Repairs.

Riprap Source – Commercial (Contractor Furnished) – There is no available Government source for Riprap specified under the Cliff Creek Bridge Replacement or the Treated Timber Bridge Repairs where riprap is a specified work item.

Coarse Granular Backfill – Commercial (Contractor Furnished) – There is no available Government source for Coarse Granular Backfill for construction of the geocell abutment stabilization for the Cliff Creek Bridge construction.

Structural Backfill – Commercial (Contractor Furnished) – There is no available Government source for Structural Backfill specified under Section 208 for abutment and wingwall backfill on the Cliff Creek Bridge.

Waste Area – Government Furnished – A waste area for unsuitable and excess material will be designated by the CO within one mile of the Cliff Creek Bridge. No unsuitable or excess material is anticipated for the treated timber Bridge Repairs.

Materials Stockpile Site – Government Furnished – The Contractor will be allowed to stockpile material, including riprap, crushed aggregate, and bridge components, adjacent to the existing roadway. Materials must be stockpiled in such a manner as to allow for safe passage of the general public along the road access and to avoid damage to any trees at the culvert site. Provide the Contracting Officer 72 hours advance notification prior to stockpiling any materials at the construction sites.

Under (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.

Under (b) Contractor-located sources add the following:

Prior to any pit development or use of materials, the pit site shall be approved by the Contracting Officer that the pit site is free of noxious weed as listed on the "All States Noxious Weeds List”.

105.05_nat_us_05_12_2007

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

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 lines, grades, cross-sections, dimensions, and processes or material 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 strict.

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. Four methods of determining conformity and accepting work are described in Subsections 106.02 to 106.05 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 additional cost to the Government.

(a) Disputing Government test results. If the accuracy of Government test results is disputed, promptly inform the Contracting Officer. 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 Contracting Officer 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 Contracting Officer will determine disposition of the nonconforming work.

106.07_nat_us_05_11_2004

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility To the Public

107.02_ipnf_us_11_20_2009

107.02 Protection and Restoration of Property and Landscape.

Add the following:

Do not work within the wetted perimeter of streams before July 15th or after September 1st unless approved by the Contracting Officer or as approved under Section C-1 – Project Description and Location, Subsection (h) – Restrictions that addresses site-by-site date restrictions for in-stream work within the project area in accordance with the Contractor’s approved Erosion Control Plan.

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”.

107.09_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.

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 Contracting Officer 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 Contracting Officer and in a manner that complies with Federal, state, and local laws and regulations.

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_ipnf_us_11_20_2009

109.02 Measurement Terms and Definitions

Add the following to this subsection:

One of the following methods of measurement for determining final payment is DESIGNATED IN THE PAY SCHEDULE for each PAY ITEM:

Methods of Measurement:

(a) Designed Quantities (DQ). These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units DESIGNATED IN THE SCHEDULE OF ITEMS may be authorized under any of the following conditions:

(1) Changes in the work authorized by the CO.

(2) A determination by the CO that errors exist in the original design that cause a PAY ITEM quantity to change by 15 percent or more.

(3) A written request submitted to the CO showing evidence of errors in the original design that cause the quantity of a PAY ITEM to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is in error.

(b) Stake Quantities (SQ). These quantities are determined from staked measurements prior to construction.

(c) Actual Quantities (AQ). These quantities are determined from measurements of completed work.

(d) Vehicle Quantities (VQ). These quantities are measured or weighed in hauling vehicles.

(e) Lump Sum Quantities (LSQ). These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

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.

109.00_nat_us_02_17_2005

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

151 - Mobilization 151.00_01_us_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 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.

Construction Requirements

Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment. Only equipment inspected by the Forest Service will be allowed to operate within the project area. All subsequent move-ins of equipment to the project area will be treated in the same manner as the initial move-in. This requirement does not apply to cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas off the National Forest.

Equipment will be considered free of soil, seed, and other such debris when a visual inspection does not disclose such material. Disassembly of equipment, components or the need for specialized inspection tools is not required.

Notify the Contracting Officer in writing at least 72 hours before moving any construction equipment onto the National Forest. 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.

Use methods of cleaning and locations for cleaning approved by the Contracting Officer.

For work at a commercial washing facility, use an approved facility.

New infestations of noxious weeds of concern to Forest Service and identified by either Contractor or Forest Service, in the Project Area or on the haul route, will be promptly reported to the other party. Contractor and Forest Service will 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.

Measurement

151.02 Clean equipment prior to moving onto this project. The initial cleaning will not be included in the measurement for payment. Payment for cleaning will only be made if subsequent cleanings are ordered by the Contracting Officer. Measurement shall be on an “each” basis, meaning one complete cleaning of all equipment required for this contract. Subsequent cleanings necessitated by the Contractor’s actions but not directed by the Contracting Officer will not be included in the measurement for payment.

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 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 Contracting Officer.

152 – Construction Survey and Staking 152.00_ipnf_us_11_20_2009 152 – Construction Survey and Staking

Delete Section 152 in its entirety and add the following:

Conduct all construction staking for the Cliff Creek Bridge under the direction of a licensed professional engineer or land surveyor who is closely associated and familiar with construction staking for bridges and major structures.

It will be the Contractor’s responsibility to protect construction stakes until the work has been accepted by the Government. Any replacement of construction stakes that are lost due to Contractor’s construction activities will be re-established at the expense of the Contractor.

153 - Contractor Quality Control 153.02_nat_us_02_17_2005

153.02 Contractor Quality Control Plan.

Add the following:

Submit written proposals for approval of alternate AASHTO or State approved test methods. Alternate methods may be allowed based on documented equivalence to the specified method.

153.04_nat_us_10_24_2007

153.04 Records.

Delete all but the first sentence

155 - Schedules for Construction Contracts

155.00_nat_us_05_11_2004

155 Delete

Delete Section 155 in its entirety.

156 – Public Traffic

156.03_ipnf_us_11_20_2009

156.03 Accommodating Traffic During Work.

Add the following:

CLIFF CREEK BRIDGE REPLACMENT:

No temporary detour or work bridge will be allowed during removal and replacement of the Cliff Creek Bridge.

The Contractor will be allowed to close Road 326 to through public traffic from Monday September 27, 2010 and Friday October 08, 2010. It is the responsibility of the Contractor to schedule delivery of materials, equipment and all necessary supplies to the site, to ensure that the bridge can be substantially completed within the above specified 12 day closure period and reopened to public traffic. The Contractor will give the CO at least three weeks advanced written notice prior to any road closure. The Contractor will 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 approved bridge closure period.

Contractor shall provide and install a road closed ahead sign for the duration of the project closure period. The road closed signs will be placed as indicated below:

Sample road closure sign follows:

Treated Timber Bridge Repairs:

Unless otherwise noted or approved by the CO, keep existing roads open to all traffic during bridge improvement work, and maintain them in a condition that will adequately accommodate traffic. Delays will not exceed 60 minutes from the time that the first vehicle arrives at the construction site. Traffic delays are not allowed on weekends or Federal holidays.

Other delay periods may be authorized upon receipt of a written approval from the Contracting Officer. Prior notification by the Contractor is required for public notice of the Contractor’s intent to delay traffic. The Contractor will submit a written request outlining other traffic delay periods at least 7 days prior to starting construction operations that necessitates the traffic delays. The contractor must open the bridge and road as rapidly as possible to allow passage of emergency vehicles.

Do not perform any work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved. Post construction signs and traffic control devices in conformance with MUTCD. All required signs will be in place and approved prior to beginning work on the project. Contractor will maintain construction signing consistent with the site work being performed.

Temporary road closures may be allowed at the bridge sites noted below upon request by the Contractor and approval by the Contracting Officer. The Contractor shall give the CO 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. Bridge closures are not allowed on weekends or Federal holidays.

9/27/10 to 10/08/10 If work is performed at same time as Cliff Creek Bridge Replacement, a bridge closure period will be approved. Outside this approved closure period, traffic delays will be established so CO can coordinate times with Concessionaire for the Hiawatha Trail Facility (bus route).

156.08_nat_us_02_24_2005

156.08 Traffic and Safety Supervisor.

Delete this subsection in its entirety.

156.10_ipnf_us_11_20_2009

156.10 Measurement and Payment

Delete the entire subsection and replace with the following:

Include all costs associated with the traffic control and signing under other pay items for the Cliff Creek Bridge replacement. Include all costs associated with the traffic control and signing in the lump sum unit price for bridge repairs under the Treated Timber Bridge Repairs portion of this project.

157 - Soil Erosion Control

157.02_ipnf_us_11_20_2009

157.02 Materials

Add the following:

Provide straw/hay bales, wattles, logs and rolls from a certified noxious weed free source.

157.03_ipnf_us_11_20_2009

157.03 General

Add the following:

Submit “Soil Erosion Control Plan” detailing permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. The erosion control plan will be submitted by the Contractor to the Contracting Officer at the pre-work meeting and approved by the Contracting Officer prior to the Contractor starting construction activities. Include methods to minimize disturbance to the stream and prevent runoff from the construction site entering directly into the stream. The “Soil Erosion Control Plan” must address construction activities that have the potential for stream sedimentation.

Reflect in the “Soil Erosion Control Plan” special concerns and measures necessary to protect resources and government improvements. Include:

(a) The construction activities and sequence of implementation relating to specific erosion control measures.

(b) The location and type of permanent controls to be implemented during construction.

(c) The location and type of temporary controls to be implemented during construction.

(d) For work in stream channels with running water a detailed dewatering plan (stream diversions) or measures to be implemented to control stream turbidity. Reference Section C(h) – Restrictions – Date restrictions for in-stream work for the Cliff Creek Bridge replacement and Avery/Red Ives Treated Timber Bridge repairs.

As part of the “Soil Erosion Control Plan”, Contractor to provide the following:

(a) Emergency Spill Kit. Keep sufficient quantities of absorbent materials on the project site to absorb accidental fuel, hydraulic oil, or other petroleum produc spills. Use absorbent materials that are biodegradable, non-water absorbing and designed specifically for the types of spills associated with the Contractor’s operations.

(b) Straw/Hay Bales. Contractor to stockpile five(5) straw/hay bales on the Cliff Creek project site for the discretionary use as directed by the Contracting Officer in addition to any bales or silt fence that the Contractor intends to incorporate into the project as a part of the permanent and temporary erosion control measures as required under this specification. These straw/hay bales are intended for unforeseen emergency use. As the straw bales are used from the stockpile, Contractor shall replace the used bales within 48 hours. Upon completion of the project, the straw/hay bales shall remain in place or removed as directed by the Contracting Officer. Removed bales and remaining stockpiled bales shall be uniformly spread over seed disturbed areas upon substantial completion of the project.

Add the following to the third paragraph:

Upon completion of construction at the site, remove all temporary erosion control devices, dewatering materials and equipment from Government property.

157.08_ipnf_us_11_20_2009

157.08 Water Crossings.

Add the following:

Installation of a work bridge or detour bridge will not be allowed during the construction for replacement of the Cliff Creek Bridge. Contractor will be required to stage equipment and materials on both sides of stream prior to the removal of the existing bridge to minimize the need for stream crossings with equipment. Any stream crossing with equipment after removal of the bridge structure must be requested by the Contractor and approved by the Contracting Officer.

157.09_ipnf_us_11_20_2009

157.09 Diversions.

Delete the first sentence and replace with the following:

Prior to the start of construction, submit a written stream diversion plan that outlines the methods and location to divert the stream around the work area. Earthen dams are prohibited.

157.15_ipnf_us_11_20_2009

157.15 Measurement

Add the following:

Do not measure stockpiled emergency use straw/hay bales or emergency spill kit as described under subsection 157.03. Do not measure erosion control or stream diversion measures required to perform the in-stream work associated with the Treated Timber Bridge repairs.

157.16_ipnf_us_11_20_2009

157.16 Payment

Add the following:

No separate payment will be made for Treated Timber Bridge erosion control or stream diversion measures and stockpiled emergency use straw/hay bales specified for discretionary use as directed by the Contracting Officer. These items will be considered incidental to other pay items in the bid schedule. See Section 109.05.

201 - Clearing and Grubbing

201.01_ipnf_us_11_20_2009

201.01 Description.

Delete the first sentence and replace with the following:

This work consists of clearing and grubbing within clearing limits and other designated areas. Clearing limits shall be limited to all construction areas necessary for roadway and stream work as well as areas necessary to process the clearing and grubbing slash. All clearing limits must be clearly delineated and approved by the Contracting Officer before any clearing and grubbing can take place.

201.06_ipnf_us_11_20_2009

201.06 Disposal.

Delete the first sentence and replace with the following:

Due to the minor clearing and grubbing required for this project, no merchantable timber is located within the clearing limits.

201.08_ipnf_us_11_20_2009 Delete this section and add the following:

201.08 Measurement

Clearing and Grubbing will not be measured separately under this contract.

201.09_ipnf_us_11_20_2009 Delete this section and add the following:

201.09 Payment

No separate payment will be made for clearing and grubbing. These items will be considered incidental to other pay items in the bid schedule. See Section 109.05.

203 – Removal of Structures and Obstructions

203.01_ipnf_us_11_20_2009

203.01 Description.

Delete and replace with the following:

This work consists of disposal of clearing slash, removal, disposal of the Cliff Creek Bridge structure, removal and disposal of treated timber bridge components for Treated Timber Bridge Repairs, removal and disposal of asphalt surfacing and other obstructions.

203.03_ipnf_us_11_20_2009

203.03 Salvaging Material.

Add the following:

The existing timber stringers shall be removed and transported to Lower Landing storage site at Avery, Idaho (located approximately 12 miles from the Cliff Creek Bridge construction site). All nails and bolts shall be removed from the timber stringers. Before transporting the salvaged material, the Contractor shall contact the CO confirming the location and time of transport.

203.05_ipnf_us_11_20_2009

203.05 Disposing of Material.

Modify this subsection as follows:

(a) Remove from project. Add the following:

All materials designated for removal including minor clearing and grubbing, treated timber bridge components, hardware and asphalt become property of the Contractor and are to be removed from National Forest System Lands and disposed of in accordance with all local, state, and federal requirements.

(b) Burn. Delete this section.

(c) Bury. Delete this section.

204 – Excavation and Embankment

204.05_ipnf_us_11_20_2009

204.05 Conserve Topsoil.

Delete this subsection:

204.11_ipnf_us_11_20_2009

204.11 Compaction.

Delete and replace with the following:

Cliff Creek Bridge - Layer Placement (Roller Compaction) Method D. Place material by end dumping and spreading to the maximum depth of 12” or depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain optimum compaction with a vibratory steel wheel roller suitable for roadway construction. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases. Make at least three complete passes.

204.13_ipnf_us_11_20_2009

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. Finish the roadbed to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material. Remove all material larger than 6 inches that protrudes above finished grade by 2 inches or more from the top 4 inches of the roadbed and replace with suitable material.

Ensure that the embankment material is visibly moist during shaping and dressing. Bring low sections, holes, cracks, or depressions to grade with suitable material. Maintain proper ditch drainage.

204.14_ipnf_us_11_20_2009

204.14 Disposal of Unsuitable or Excess Material.

Delete the text of the first paragraph and substitute the following:

Contractor to dispose of unsuitable or excess material for the Cliff Creek Bridge construction at as directed by the Contracting Officer at a designated waste site within one mile of the project site.

208 - Structure Excavation & Backfill for Selected Major Structures 208.01_ipnf_us_11_20_2009

208.01 Description

Add the following to this subsection:

Structure excavation and backfill for selected major structures applies to the Cliff Creek Bridge replacement.

208.04_ipnf_us_11_20_2009

208.04 General.

Add the following:

Use all suitable material in the construction of the roadway embankment and for structural backfill. Field drain and dry excessively wet material that is otherwise suitable for embankment before placement. Place and shape unsuitable or excess material in the designated sites as described under Section 105 and Section 204 or as directed by the Contracting Officer.

Structural backfill within 24” of concrete abutment and wingwalls shall be imported material meeting the requirements of FP-03 Section 704.04.

208.10_ipnf_us_11_20_2009

208.010 Backfill.

Add the following to this subsection:

Backfill or embankment material shall be placed on both abutments of a spill-through type abutment so that not more than 2 feet of elevation difference exists between the backfill or embankment of the two abutments. No embankment of backfill shall be place higher than 1 foot below the top of the cap until after the grout and mortar for the prestressed multibeam girders have been placed and cured. Ensure that the moisture content of backfill material is suitable for attaining the required compaction.

208.11_ipnf_us_11_20_2009

208.11 Compacting.

Delete this section and add the following:

Each layer shall be compacted with mechanical tampers until surface deformation is no longer visible. Adjust the moisture content of the backfill material to the moisture content suitable for compaction.

Contractor will establish the compactive effort required by the control strip method. Construct a control strip at the beginning of work on each type of material to be compacted. Ensure that the material used in the construction of the control strip meets the specification requirements and proper moisture content for maximum compaction.

Use compaction equipment in the construction of the control strip designed for this purpose until visual displacement ceases. Replace any compaction equipment that fails to provide adequate compaction. Correct or remove unacceptable control strips and replace them at the Contractor’s expense.

Begin compacting the control strip immediately after the course has been placed to the specified thickness. Ensure that compaction is continuous and uniform over the entire surface. Continue compaction of the control strip with a minimum of three passes or until no discernible increase in density can be obtained by additional compactive effort as determined by the Contracting Officer. Once the compactive effort has been established by the control strip method, apply this compaction process until soil type or other conditions change.

208.12_ipnf_us_11_20_2009

208.12 Acceptance.

Delete reference to Table 208-1.

209 - Structure Excavation and Backfill 209.01_ipnf_us_11_20_2009

209.01 Description

Add the following:

This work shall include necessary excavation and backfil for abutment and wingwall post replacement.

209.02_ipnf_us_11_20_2009

209.02 Material

Delete the entire subsection.

209.09_ipnf_us_11_20_2009

209.09 Bedding

Delete the entire subsection.

209.10_ipnf_us_11_20_2009

209.10 Backfill.

Backfill as follows:

(a) General.

Delete the entire subsection and substitute the following:

Place backfill or embankment material back to match original ground contour. Compaction shall be attained with a minimum of (3) passes of approved mechanical compaction equipment or until there is no visible deflection under load. Ensure that backfill density exceeds the density of the surrounding embankment. Except for riprap located streamside do not place rocks greater than 6 inches in diameter within two(2) feet of any wingwall or abutment.

209.11_ipnf_us_11_20_2009

209.11 Compacting.

Delete the entire subsection 209.12_ipnf_us_11_20_2009

209.12 Acceptance

Sampling and Testing Requirements

Delete the last sentence:

209.13_ipnf_us_11_20_2009

209.13 Measurement and Payment

Delete the entire subsection and substitute with the following:

Do not measure excavation and backfill for payment. Compensation is made as an indirect payment to Section 574 pay items listed in the bid schedule.

251 – Riprap 251.01_ipnf_us_11_20_2009 Construction Requirements

251.01 Description.

Replace with the following:

This work consists of furnishing, hauling and placing riprap for bank protection, slope protection, drainage structures, erosion control, and grade control structures.

Riprap classes are designated as shown in Table 705-1.

251.02_ipnf_us_11_20_2009

251.02 Material

Add the following:

Suitable rock shall be furnished by the contractor.

251.07_ipnf_us_11_20_2009

251.07 Acceptance.

Delete reference to Table 251-1 and add the following.

Contractor will certify that the riprap meets the gradation requirements specified on the drawings and in the bid schedule.

Delete the fourth sentence and add the following:

Structure excavation and backfill will be evaluated under section 208 for the Cliff Creek Bridge and Section 209 for other Timber Bridge Repair structures.

251.09_ipnf_us_11_20_2009

251.09 Payment

Add the following:

Do not measure riprap for payment on bridge sites associated with the Treated Timber Bridge repairs. Compensation is made as an indirect payment to Section 574 pay items listed in the bid schedule.

253 – GABIONS AND REVET MATTRESSES

253.03_ipnf_us_11_20_2009

253.03 General.

Delete the first sentence and add the following:

Surveying will not be required to establish alignment of the gabions.

272.00_ipnf_us_11_20_2009

272 - Geocell Abutment Stabilization Description

272.01 This work consists of constructing geocell abutment stabilization at each abutment using a cellular confinement system such as Presto Geoweb Cellular Confinement System or Webtec TerraCell in accordance with the plans and manufacturers recommendations.

Materials

272.02 Requirements. Ensure that material conforms to specifications in the following subsections:

Granular Backfill Type (a)

703.03

Geotextile, Type II (A, B, C)

714.01

Geocell

Construction Requirements

272.03 General. Perform the work specified in Section 208 or 209. Use ditches, grading or similar methods to prevent surface runoff that may occur during inclement weather from ponding in the foundation excavation.

272.04 Storage and Handling of Material. During shipment and storage, wrap geotextile materials in heavy-duty protective covering. Protect the material from mud, soil, dust, debris and sunlight prior to installation.

272.05 Geotextile Installation. Place the geotextile according to Section 207. Have the surface approved by the CO prior to placing geotextile.

Sew or overlap adjacent strips a minimum of 12” at joints. Insert securing pins through both strips of overlapped geotextile at minimum intervals of 3 feet, but no closer than 2 inches to each edge, to prevent the geotextile from being displaced.

Have the installed geotextile approved by the CO prior to setting the geocells.

272.06 Geocell Installation. Furnish the CO with product literature and certification as required in Section 106.03 for review and approval 7 days prior to installation. When requested by the CO, furnish a sample of the geocell from each lot for verification testing.

Place the geocell sections directly on the prepared subgrade. Expand the geocell sections into position at the grades and lines as shown on the plans. Hold the expanded geocell sections with suitable “stretcher frames”, steel stakes driven inside selected outer cell walls, or other similar methods as allowed by the manufacturer prior to filling. Ensure that the individual cells have expanded to the minimum dimensions required by the manufacturer. If necessary field cut sections as per the manufacturer’s recommendations to the lines shown on the plans.

Connect geocell panels in accordance with the manufacturer’s recommendations.

272.07 Infill Placement. Furnish the CO with the manufacturer’s specific recommendations for backfilling 7 days prior to placement of the geocells.

Place coarse granular backfill meeting Subsection 703.03 into the expanded cells with equipment appropriate for the site conditions such as a backhoe or a front-end loader. Do not drop infill material more than 3 feet to avoid damage or displacement of the cell walls.

Overfill the geocell cells and level to a minimum of 2 inches above the top of the cell walls. A front-end loader may be used to place the infill provided that it only traffics above geocell sections that have been filled and covered with the minimum 2 inches of additional material. Compact the infill material with a vibratory plate compacter. Operate compaction equipment over the full width of the geocell. Make at least three complete passes or until visible deformation of the infill ceases. Grade the surface to be ½ inch above the top of the cells. Ensure that the cell walls are not exposed after fine grading is completed.

Use the geocell manufacturer’s specific recommendations for backfilling if they are more stringent than stated above.

272.08 Acceptance. Geotextile will be evaluated under Subsections 106.02 and 714.01.

Material for geocell will be evaluated under Subsections 106.2 and 106.03.

Granular backfill material will be evaluated under Section 106.02 and 106.04.

Measurement

272.09 Method. Measure the items listed in the bid schedule according to Subsection 109.02 and the following.

Measure geocell by the square yard in place, exclusive of wastage.

Payment

272.10 Basis. The accepted quantities will be paid for at the contract price per unit of measurement for the Section 272 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

The cost for furnishing and placing the granular backfill required in Sections 207, 208, and 209 for geocell infill is incidental to this pay item and no separate payment will be made. The cost for furnishing and placing geotextile for the geocell installation is incidental to this pay item and no separate payment will be made.

308 – Minor Crushed Aggregate 308.01_ipnf_us_11_20_2009 Description

308.01 Work

Delete this subsection and add the following:

This work consists of furnishing, placing and compaction of crushed surface aggregate for bridge approaches for Cliff Creek Bridge and the Treated Timber Bridge Repairs as SHOWN ON THE DRAWINGS.

308.05_ipnf_us_11_20_2009 Construction Requirements

308.05 Compaction and Finishing Crushed Aggregate

Add the following:

(3) Method…