09 2009 Upper Niagara Bridge Approach Spec_Revised 07-09-09.doc

STANDARD SPECIFICATIONS FOR CONSTRUCTION

OF ROADS AND BRIDGES ON FEDERAL HIGHWAY PROJECTS -2003

DATE: 06/10/2009

UPPER NIAGARA CREEK BRIDGE SUPPLEMENTAL SPECIFICATIONS

THE FOLLOWING SPECIFICATIONS AND SPECIAL PROJECT SPECIFICATIONS APPLY TO ALL ROADS UNLESS SHOWN OTHERWISE ON DRAWINGS Table of Contents

1UPPER NIAGARA CREEK BRIDGE SUPPLEMENTAL SPECIFICATIONS

Table of Contents Preface 101 - Terms, Format, and Definitions

101.01 Meaning of Terms

101.03 Abbreviations.

101.04 Definitions.

102 - Bid, Award, and Execution of Contract 102 Bid, Award, and Execution of Contract 103 - Scope of Work Deletions 104 - Control of Work Deletions

104.06 Use of Roads by Contractor

105 - Control of Material

105.02 Material Sources.

105.02(a) Government-provided sources.

105.05 Use of Material Found in the Work.

106 - Acceptance of Work

106.07 Delete

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims.

107.06 Contractor’s Responsibility for Work.

107.09 Legal Relationship of the Parties.

107.10 Environmental Protection.

107.02 Protection and Restoration of Property and Landscape 108 - Prosecution and Progress 108 Delete.

109 - Measurement and Payment 109 Deletions

109.02 Measurement Terms and Definitions.

152 - Construction Survey and Staking

152.02 General.

Table 152-1 Tolerances for reestablishing P-line, traverse, and elevations.

Table 152-2 Cross section and slope stake tolerances.

153 - Contractor Quality Control

153.02 Contractor Quality Control Plan.

153.04 Records.

154 - Contractor Sampling and Testing 155 - Schedules for Construction Contracts 155 Delete.

156 - Public Traffic

156.03 Accommodating Traffic During Work.

156.04 Maintaining Roadways During Work.

156.08 Traffic and Safety Supervisor.

157 - Soil Erosion Control

157.03 General

170 - Develop Water Supply and Watering 171 - Weed and Disease Prevention 201 - Clearing and Grubbing

201.01 Description

201.04 Clearing. (c)

203 - Removal of Structures and Obstructions

203.01 Description.

203.02 Material.

203.04 Removing Material.

203.05 Disposing of Material.

203.08 Payment.

203A – Bailey Bridge Removal 203A.01 Description.

203A.02 Construction Requirements for Disassembly and Removal.

203A.03 Transportation and Storage.

204 - Excavation and Embankment

204.09 Preparing Foundation for Embankment Construction.

204.11 Compaction.

204.14 Disposal of Unsuitable or Excess Material.

204.15 Acceptance

Table 204-1 Sampling and Testing Requirements.

208 - Structure Excavation and Backfill for Selected Major Structures 251 - Riprap 301 - Untreated Aggregate Courses 301 Title Change.

301.01 Work.

301.02 Material.

301.03 General.

301.04 Mixing and Spreading.

301.05 Compacting

301.06 Surface Tolerance.

Table 301-1 Field Density Requirements.

Table 301-1—Acceptance Sampling and Testing Requirements.

301.09 Measurement.

324 - Minor Aggregate, Commercial Source 403 - Hot Asphalt Concrete Pavement

403.06 Surface Preparation.

403.16 Pavement Smoothness.

Table 403-1—Acceptance Sampling and Testing Requirements.

409 - Asphalt Surface Treatment

409.02 Material.

409.06 Weather.

409.06 Date & Time.

409.08 Asphalt Application.

409.10 Fog Seal.

409.11 Single Course Surface Treatments.

Table 409-1 Approximate Quantities of Material-Single Course Surface Treatment Table 409-2 Approximate Quantities of Material – Double Course Surface Treatments Table 409-3 Approximate Quantities of Material – Triple Course Surface Treatments

409.13 Acceptance.

Table 409-4 Sampling and Testing Requirements.

412 - Asphalt Tack Coat 552 - Structural Concrete 553 - Prestressed Concrete 554 - Reinforcing Steel 556 - Bridge Railing 617 - Guardrail 625 - Turf Establishment

625.03 General.

625.04 Preparing Seedbed.

625.07 Seeding. (a) Dry method.

625.07 Seeding. (b) Hydraulic method.

Table 625-1. Fertilizer Application Rate.

633 - Permanent Traffic Control

633.02 Material.

633.03 General.

633.05 Panels.

635 - Temporary Traffic Control

635.03 General.

701 - Cement 703 - Aggregate

703.05 Subbase, Base, Surface Course, and Screened Aggregate.

703.10(e) Flakiness Index.

703.10(i) Adherent Coating.

Table 703-2 Correction Table 703-2 Correction 704 - Soil

704.02 Bedding Material.

705 - Rock 709 - Reinforcing Steel and Wire Rope 712 - Joint Material

712.01 Sealants, Fillers, Seals, and Sleeves.

713 - Roadside Improvement Material

713.05 Mulch.

714 - Geotextile and Geocomposite Drain Material Tables 714-1 and 714-4.

714.03 Geogrids.

Table 714-7—Physical strength requirements for geogrids.

717 - Structural Metal 718 - Traffic Signing and Marking Material

718.02 Reserved.

718.02 Protective Overlay Film and Edge Film.

Preface

Preface_wo_03_15_2004_m 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

101.00_nat_us_07_25_2005

101.01_nat_us_01_22_2009

101.01 Meaning of Terms

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

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:

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

103.00_nat_us_02_16_2005

Deletions

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

104.00_nat_us_06_16_2006

Deletions

Delete Sections 104.01, 104.02, and 104.04.

104.06_nat_us_02_17_2005

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

105.02_nat_us_01_18_2007

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.

105.05_nat_us_05_12_2004

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

106.07_nat_us_05_11_2004

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

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 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.

107.10_05_us_05_04_2007

107.02 Protection and Restoration of Property and Landscape

Add the following:

Meet the requirements chapters 10, 11, and 12.2 in their entirety of “Water Quality Management for National Forest System Lands in California Best Management Practices” dated September 2000

108 - Prosecution and Progress

108.00_nat_us_02_16_2005

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.00_nat_us_02_17_2005

109 Deletions

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

109.02_nat_us_06_16_2006

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.

152 - Construction Survey and Staking

152.00_nat_us_08_05_2005

Description 152.01(c) Material.

Add the following:

Use required stake dimensions and materials. Pre-paint the top 2 inches of all stakes and lath, or mark them with plastic flagging. Use designated colors for paint or flagging. Mark all stakes with a stake pencil that leaves a legible imprint, or with waterproof ink.

Do not use aerosol spray paints.

Use moisture-resistant paper for survey notes. Keep notes in books with covers that will protect the contents and retain the pages in numerical sequence.

Construction Requirements

152.02 General.

Delete the first two sentences.

Add the following:

When indicated on the plans, a preliminary survey line has been established on the ground. The project location line is established by offsets from this preliminary line.

Delete second sentence in second paragraph and replace with the following:

Reestablish missing reference, control lines, or stakes as necessary to control subsequent construction staking operations

152.03 Survey and Staking Requirements.

(b) Roadway cross-sections.

Replace the first two sentences with the following:

Take roadway cross-sections normal to centerline. When the centerline curve radius is less than or equal to 200 feet, take cross-sections at a maximum centerline spacing of 25 feet. When the centerline curve radius is greater that 200 feet take cross-sections at a maximum centerline spacing of 80 feet.

c) Slope Stakes & References:

Replace section with the following:

Slope stakes and references. When required, locate slope stakes on designated portions of the road. Locate the slope stake catch points and use them to establish clearing limits and slope stake references.

Mark slope stakes with the station, the amount of cut or fill, the horizontal distance to centerline, and the slope ratios.

Place slope reference stakes at least 10 feet outside the clearing limit and mark with the offset distance to the slope stake. Place sight stakes when required.

Prior to clearing and grubbing operations, move the slope stake outside the clearing limit to the slope reference stake. After clearing and grubbing and before excavation, reset the slope stakes in their original position.

Use the designated method to establish the slope stake catchpoint.

· Method I—Computed Method. Use the template information shown in the plans or other Government-provided data to calculate the actual location of the catchpoint. The slope stake “catchpoint distance” provided may be used as a trial location to initiate slope staking. Recatch slope stakes on any section that does not match the staking report within the tolerances established in Table 152-2.

· Method II—Catchpoint Measurement Method. Determine the location of slope stake catchpoints by measuring the catchpoint distances shown in the plans or other Government-provided data.

(d) Clearing and grubbing limits.

Add the following:

Establish clearing limits on each side of the location line by measuring the required horizontal or slope distances shown in the stake notes. Mark the clearing limits with flagging or tags on trees to be left standing, or on lath. Make markings intervisible, and no more than 90 feet apart.

After establishing clearing limits, move the location line stake outside the clearing limits for station identification purposes, and mark it with horizontal distance to location line

(e) Centerline reestablishment.

Replace with the following:

Reestablish centerline from instrument control points. The maximum spacing between centerline points is 25 feet when the centerline curve radius is less than or equal to 200 feet. When the centerline curve radius is greater than 200 feet, the maximum distance between centerline points is 80 feet.

(g) Culverts.

Replace subsection with the following:

Set culvert reference stakes at all culvert locations. Set a culvert reference stake on the centerline of the culvert 10 feet from each end or beyond the clearing limit, whichever is greater. Record the following on culvert reference stakes:

(1) Diameter, actual field measured length, and type of culvert.

(2) The vertical and horizontal distance from the reference stake to the invert at the ends of the culvert.

(3) Station of actual point where culvert intersects centerline.

When required, stake headwall for culverts by setting a hub with a guard stake on each side of the culvert on line with the face of the headwall. Perform this work after clearing is completed.

152.03 (l) Miscellaneous Survey and Staking.

Add the following:

(11) Cattleguards

(12) Drain Dips

(13) Erosion Control Measures

Replace Table 152-1 with the following two tables:

Table 152-1 Tolerances for reestablishing P-line, traverse, and elevations.

A

(Bridges)

10 second rejection limit

0.02ft/1000ftc

20 second rejection limit

0.02ft/1000ftc

1 minute rejection limit

a. Accuracy of offset measurement.

b. Determine vertical closures at intervals not to exceed 2000 ft as measured along centerline.

c. Use greater value.

Table 152-2 Cross section and slope stake tolerances.

Horizontal and vertical accuracy for slope stake, slope stake references, and clearing limits. In feet or percentage of horizontal distance measured from centerline or reference stake, whichever is greater.

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 154 - Contractor Sampling and Testing

154.01_nat_us_05_24_2005

154.01 Description

Delete the last sentence of the first paragraph.

155 - Schedules for Construction Contracts

155.00_nat_us_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

156 - Public Traffic

156.00_nat_us_04_17_2007

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

Description

156.01 This work consists of controlling and protecting public traffic adjacent to and within the project.

Material

156.02 Conform to the MUTCD and the following Sections and Subsections:

Construction sign panels

Retro-reflective sheeting

718.01

Temporary concrete barrier

Temporary plastic fence

710.11

Temporary traffic control devices

718.22

156.03 General. Unless otherwise provided for in Table 156-1, keep existing roads open to all traffic during road improvement work, and maintain them in a condition that will adequately accommodate traffic. Delays may not exceed 30 minutes at any one time followed by an open period of no less than 30 minutes.

Perform no 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 project.

If the Contractor agrees in writing to allow public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.

156.04 Temporary Traffic Control. Install and maintain temporary traffic control devices adjacent to and within the project as required by the approved traffic control plan and the MUTCD. Install and maintain traffic control devices as follows:

(a) Furnish and install traffic control devices before the start of construction operations.

(b) All detours outside of clearing limits will be approved in writing by the Contracting Officer as part of the traffic control plan.

(c) Install only those traffic control devices needed for each stage or phase.

(d) Relocate temporary traffic control devices as necessary.

(e) Remove devices that no longer apply to the existing conditions.

(f) Immediately replace any device that is lost, stolen, destroyed, or inoperative.

(g) Keep temporary traffic control devices clean.

(h) Remove all temporary traffic control devices upon contract completion or when approved.

(i) When required, use flaggers certified by the American Traffic Safety Services Association, the National Safety Council, the International Municipal Signal Association, a state agency, or other acceptable organization. Perform the work described under MUTCD Part 6. Use type III, VII, VIII, or IX retroreflective sheeting on flagger paddles. Do not use flags. Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.

156.05 Temporary Closures. Road segments may be closed as shown in Table 156-1. The maximum consecutive days of closure shall be followed by a minimum number of consecutive days open to traffic as shown. Maintain traffic control devices during closure period(s). Appropriate barricades and signs will be erected and maintained as shown in the traffic control plan or as otherwise designated.

Prior to closing roads during construction, give written notice to the Contracting Officer at least 10 days in advance.

Table 156-1

Temporary Road Closures

156.06 Acceptance. Public traffic work will be evaluated under Subsection 106.02.

Measurement and Payment

156.07 Do not measure Public Traffic for payment. Compensation is made as an indirect payment.

156.03_nat_us_02_24_2005

156.03 Accommodating Traffic During Work.

Delete the following from the last paragraph:

according to Subsection 106.07(b)

156.04_nat_us_02_24_2005

156.04 Maintaining Roadways During Work.

(a) Add the following:

Do not construct detours outside of the clearing limits or use alternate route detours without the approval of the CO.

156.08_nat_us_02_24_2005

156.08 Traffic and Safety Supervisor.

Delete this subsection in its entirety.

157 - Soil Erosion Control

157.03_nat_us_02_24_2005

157.03 General

Delete the entire subsection and replace with the following:

Prior to the start of construction, submit a written plan that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control. An alternate erosion control plan with all necessary permits may be submitted 30 days before intended use.

Incorporate all permanent erosion control features into the project at the earliest practicable time, as outlined in the approved plan.

When erosion control measures are not functioning as intended, immediately take corrective action.

170 - Develop Water Supply and Watering

170.00_nat_us_03_30_2005

Description

170.01 This work consists of developing an acceptable water supply, furnishing, hauling, and applying water.

Materials

170.02 Conform to the following subsection.

Water

725.01.

Construction Requirements

170.03 Development of Supply & Access. Develop water supplies and access to the water supplies as required. Use designated water sources or other approved water sources. Before using non-designated water sources, obtain all necessary permissions, water rights, and permits.

170.04 Equipment. Provide mobile watering equipment with watertight tanks of known capacity. Provide for positive control of water application from the driver’s position.

170.05 Application. Apply water uniformly without ponding or washing.

170.06 Acceptance. Developing water supplies and watering will be evaluated under Subsections 106.02 and 106.04.

Measurement

170.07 Measure the Section 170 items listed in the bid schedule according to Subsection 109.02.

Payment

170.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 170 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

171 - Weed and Disease Prevention

171.00_nat_us_03_30_2005

Description

171.01 This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before the equipment is used on National Forest System lands.

171.02 Conform to the following Subsection:

Water

725.01

Construction Requirements

171.03 General . Notify the CO in writing at least 5 days before moving any construction equipment onto National Forest System lands. Construction equipment does not include cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas outside of National Forest System lands.

Perform all work at a location designated on the plans or other locations approved in writing. Provide the CO with an opportunity to monitor the washing and inspection.

171.04 Equipment. Use a high pressure washing system.

For work on National Forest System lands, use a washing system that traps all wash water and either stores it for removal from National Forest System lands or recycles the water for continued use. If the equipment recycles the water, provide adequate filters for seed removal. Dispose of the filter material and removed seeds in an approved manner. Do not mix soaps, detergents, or other chemicals with the wash water.

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

171.05 Washing. Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment.

171.06 Inspection. Inspect the washed construction equipment, including the undercarriage, to ensure that the washing removed the dirt, debris, and seeds from the construction equipment. Rewash the construction equipment as necessary or as directed.

171.07 Acceptance. Weed prevention will be evaluated under Subsection 106.02.

Measurement

171.08 Do not measure weed prevention for payment.

Payment

171.09 Include all costs associated with the Section 171-Weed Prevention in the unit price for Section 151-Mobilization.

201 - Clearing and Grubbing

201.01_nat_us_02_18_2005

201.01 Description

Replace with the following This work consists of clearing and grubbing within clearing limits and other designated areas.

201.04_nat_us_02_22_2005

201.04 Clearing. (c)

Delete paragraph (c) and replace with the following:

(c) In areas outside the excavation, embankment, and slope rounding limits, cut stumps to within 12 inches or one-third of the stump diameter of the ground, whichever is higher, measured on the side adjacent to the highest ground. For timber sales, stump heights will meet the requirements of the Timber Sale contract.

201.04 Clearing.

Delete subsection (d) and replace with the following:

(d) Do not cut vegetation less than 3 feet tall and less than 3 inches in diameter, that is within the clearing limits but beyond the roadway and not in a decking area, and that does not interfere with sight distance along the road.

Add the following:

(e) Trim branches of remaining trees or shrubs to give a clear height of 14 feet above the roadbed unless otherwise indicated. Trim tree limbs as near flush with the trunk as practicable.

(f) Remove brush from log decks. Deck logs so that logs are piled parallel to one another; can be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Keep logs in log decks free of brush and soil.

203 - Removal of Structures and Obstructions

203.01_nat_us_02_25_2005

203.01 Description.

Delete and replace with the following:

This work consists of disposing of construction slash and debris, salvaging, removing, and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.

203.02 Material.

Add the following:

Geotextile

203.04_nat_us_02_18_2005

203.04 Removing Material.

Replace the fourth and fifth paragraphs with the following:

Where part of an existing culvert is removed, remove the entire culvert upstream from the removal. The remaining downstream culvert may be left in place if no portion of the culvert is within 12 inches of the subgrade, embankment slope, or new culvert or structure; and the culvert ends are sealed with concrete.

Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation. Remove structures and obstructions outside the roadbed to 12 inches below finished ground or to the natural stream bottom.

203.05_nat_us_02_18_2005

203.05 Disposing of Material.

Add the following:

(e) Windrowing Construction Slash. Place construction slash outside the roadway in neat, compacted windrows approximately parallel to and along the toe line of embankment slopes. Do not permit the top of the windrows to extend above subgrade. Use construction equipment to matt down all material in a windrow to form a compact and uniform pile. Construct breaks of at least 15 feet at least every 200 feet in a windrow. Do not place windrows against trees. Obtain approval for pioneer roads. A pioneer road may be constructed to provide an area for placement of windrows, provided the excavated material is kept within the clearing limits and does not adversely affect the road construction.

(f) Scattering. Scatter construction slash outside the clearing limits without damaging trees. Limb all logs. Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Limb and scatter other construction slash to reduce slash concentrations.

(g) Chipping or Grinding. Use an approved chipping machine to grind slash and stumps greater than 3 inches in diameter and longer than 3 feet. Deposit chips or ground woody material on embankment slopes or outside the roadway to a loose depth less than 6 inches. Minor amounts of chips or ground woody material may be permitted within the roadway if they are thoroughly mixed with soil and do not form a layer.

(h) Debris Mat. Use tree limbs, tops, cull logs, split stumps, wood chunks, and other debris to form a mat upon which construction equipment is operated. Place stumps upside down and blend stumps into the mat.

(i) Decking Firewood Material. Remove brush from decks. Limb and deck logs that do not meet Utilization Standards according to Subsection 201.04 as directed by the CO. Cut logs to lengths less than 30 feet. Ensure that logs stacks are stable and free of brush and soil.

(j) Removal to designated locations. Remove construction slash to designated locations.

(k) Piling. Pile construction slash in designated areas. Place and construct piles so that if the piles are burned, the burning will not damage remaining trees. Keep piles free of dirt from stumps. Cut unmerchantable logs into lengths of less than 20 feet.

(l) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. Do not place slash closer than 2 feet below subgrade. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets.

(m) Hydrological Sensitive Placement. Where required use this method in combination with other designated methods to dispose of material to reduce erosion and to aid in re-vegetation:

1. Place windrow segments on contours, wrap in type I geotextile.

2. Place logs as log erosion barriers on contours. Place logs so that 80% of their length is on the ground surface.

3. Scatter slash on bare or disturbed areas within or outside the clearing limits as directed.

4. Scatter chips or ground woody material on bare or disturbed areas within or outside the clearing limits as directed.

Place stumps in swales or on sites to form planting pockets. Place windrow segments on contours, wrap in type I geotextile.

203.08_nat_us_02_24_2005

203.08 Payment.

Add the following:

Disposal of construction slash will be compensated under the designated pay item in Section 201.

203A – Bailey Bridge Removal 203A.01 Description.

This work consists of the disassembly, removal, and storage of the existing in-place Bailey Bridge.

203A.02 Construction Requirements for Disassembly and Removal.

(a) The Contractor shall be required to utilize the services of a Bailey Bridge Consultant for proper technical disassembly, removal and storage of the Bailey Bridge. This service is available through Bailey Bridge, Inc.. The contact information is:

Bailey Bridges, Inc.

119 40th Street N.E.

Fort Payne, Alabama 35967

(800) 477-7320

The Bailey Bridge Consultant is to be present for all operations regarding the disassembly, removal, and storage of the Bailey Bridge. Technical construction manuals for the Bailey Bridge can be acquired from Bailey Bridge, Inc. at the above address.

(b) Under the direction of the Bailey Bridge Consultant, the contractor shall submit a detailed plan for removal for the bridge, including staging, equipment, and method to be used to the CO for approval 10 days prior to the disassembly work. The contractor shall submit documentation to the CO such that that the removal plan has been reviewed by the Bailey Bridge Consultant.

(c) Prior to disassembly/removal of the Bailey Bridge structure, the contractor and Bailey Bridge Consultant shall inspect the in-place structure and identify any missing or damaged parts. A detailed list of all bridge components assumed to be in place on the bridge is provided in 203A.02 (g). Contractor shall verify the completeness of the list of the major components with the in-place structure, and note any missing or damaged items prior to disassembly of the structure. Contractor shall submit the verified list, including any missing or damaged components, to CO.

(d) Notify the CO or his designated representative in writing (FAX is sufficient) a minimum of 5 working days prior to the disassembly/removal of the Bailey Bridge.

(e) The Government shall furnish the contractor with the components needed for disassembly/removal of the Bailey Bridge, such as Jacks and Rollers, to the extent of their availablity.

(f) The contractor shall disassemble the Bailey Bridge structure. Immediately following disassembly, the contractor shall prepare and submit to the CO or his designated representive, a revised and complete inventory of all bridge components, including those components that are damaged, missing, or otherwise need to be replaced. The contractor shall provide this inventory to the CO or his designated representative a minimum of 5 working days prior to the time the bridge components are returned to the storage site. The contractor shall include a copy of the inventory with the bridge components when they arrive at the storage site. The contractor shall be responsible for any lost or damaged parts during transportation to the storage site.

(g) The following is a list of all components assumed to be in place in the assembled Bailey bridge at the Upper Niagara Creek Bridge site:

DESCRIPTION

NUMBER

DESCRIPTION

NUMBER

PANEL

STRINGER BUTTON

BOLT RIBEND

RAMP PLAIN

PIN PANEL SHORT

RAMP BUTTON

PIN, PANEL

PLATE BASE

CLAMP TRANSOM

BOLT BRACING

POST FOOTWALK

PANEL

RAKER

TRANSOM

6 BEARER FOOTWALK

BRACE SWAY

BRACING FRAME

CLIP RETAINER

CHESS

FOOTWALK

BEARING

PLATE TIE

PEDESTAL RAMP

FOOTWALK BUTTON

END POST-MALE

END POST-FEMALE

RIBBAND GUARDRAIL

BEARER FOOTWALK

STRINGER PLAIN

203A.03 Transportation and Storage.

(a) The contractor shall remove/disassemble the existing in-place Bailey Bridge structure and transport the components to the Government storage site located at the Stanislaus Hotshot Base at 10 So. Forest Road, Sonora, CA 95370. Contractor shall provide equipment, material & labor needed to load, transport, and unload the disassembled bridge components at the project site and the storage location. The contractor shall coordinate delivery of bridge components to the storage site with the CO or his designated representative. The Stanislaus Hotshot Base is a secure Government facility, and access must be arranged prior to delivery of the bridge components. The contractor shall provide written notice (FAX is sufficient) to the CO or his designated representative, a minimum of 5 days prior to delivery of bridge components to the storage site.

(b) All Government-furnished Bailey panel bridge components and parts are DESIGNATED as salvageable. At the storage site, components will be stored at a specific location as determined by the CO.

(c) Component off-loading and movement within the storage site is expected to require an operator and a forklift or similar equipment capable of operating on loose packed gravel.

(d) When the Bailey Bridge components are to be transported from the project site to the storage site, the contractor shall prepare all components for transportation and storage using the following guidelines:

Do not match-mark steel materials, but sort and band materials as described:

(1) Panels: Band in groups of 5. Alternate male and female ends of panels. Group panels so that all bearing seats face the same direction. When preparing for storage as opposed to movement to another site for reassembly, do not put the transom set bolts back in the panels after removing the transoms, but clean, lubricate and store the bolts as described below. Band panels so that each group is stable and panels cannot shift within the group. A plate/flat bar and galvanized fasteners can be used in lieu of banding; contact Bailey Corporation for further information on this method of packaging.

(2) Rakers: Bundle on top of each other in groups of 24. Band rakers so that the load on each pallet is stable, and rakers will not loosen from the bundle.

(3) Bracing Frames: Stack in groups of 20 on a pallet or wood skids and band. Band bracing frames so that the stack is stable and cannot shift during transport.

(4) Male/Female Post: Bundle 2 male posts and 2 female posts together on a pallet or wood skids and band. Band posts so that they do not shift and posts cannot loosen from the bundle.

(5) Bearings: Place in wooden crates with skids or load on palettes so that load is flat and can be banded. Bundle bearings so that they cannot shift or loosen during transport.

(6) Base plates: Place on a pallet and band to avoid slippage during shipping.

(7) Panel: Place flat with dunnage between each layer to facilitate forklift work. Reinforcement does not need to be banded.

(8) Sway Braces: Place flat in layers of 12 with 1/2" wood strips between layers. Band bundles in packs of 48 sway braces with wood skids.

(9) Sort bolts and replace washers and nuts on them as they are removed from the bridge components. Clean and lubricate bolts. Place in plastic buckets with tight fitting lids and strong handles; maximum bucket weight not exceed 50 pounds when loaded and sealed. Label each bucket on the lid and side with its contents and quantities, using waterproof materials. This applies to the following components:

Bracing Bolts

(10) As they are removed from the bridge, sort and place the following in closed wooden crates with skids that do not exceed 50 pounds when loaded and sealed. Clean and lubricate bolts prior to storage. Label each crate on the lid and two adjacent sides with its contents and quantities, using waterproof materials. This applies to the following components:

Stringer Clamp Assemblies (consisting of bolt, nut with welded washer, and forging)

Panel Pins

(11) Safety Clips: Place in plastic buckets with tight fitting lid and strong handles. Clearly label the lid and side of the bucket with its contents and quantities using waterproof materials.

(12) Ramp/Footwalk Unit: Arrange in bundles of 5 with like units together. Stack deck units upright, one on top of another. Stack curb units upright with each unit alternated from the previous, i.e. curb left, curb right, etc. Band each bundle tightly with wood skids to avoid shifting and loosening during shipping. Bundles may be stacked up to 3 high with dunnage between bundles to facilitate forklift work.

(13) Transoms: Arrange with both flanges flat and the web vertical, adjacent to each other. Place dunnage between each layer to facilitate forklift work.

203A.04 Payment The disassembly, removal, transportation, and storage of the Bailey bridge, including the cost of the Bailey Bridge Consultant shall be compensated under the designated pay item 20303 in the Schedule of Items. All other costs associated with the disassembly, removal, transportation, and storage of the Bailey Bridge not covered under this specification shall be considered incidental to this pay item.

204 - Excavation and Embankment

204.05_nat_us_02_18_2005

204.05 Conserved Topsoil

Delete the entire paragraph.

204.09_nat_us_03_02_2005

204.09 Preparing Foundation for Embankment Construction.

Delete subsection (a) and replace it with the following:

(a) Embankment less than 4 feet high over natural ground. When designated, remove topsoil and break up the ground surface to a minimum depth of 6 inches by plowing or scarifying. Compact the ground surface according to Subsection 204.11.

204.11_nat_us_04_11_2005

204.11 Compaction.

Delete the first paragraph and replace it with the following:

For compaction according to method (a), (b), or (c), use AASHTO T 27 to determine the amount of material retained on a Number. 4 sieve. For compaction methods (d) or (e) no sieve test is required.

Add the following compaction methods:

(d) Layer Placement Method (Hauling and Spreading Equipment). Place material by end dumping to the minimum depth needed for operation of spreading equipment. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer. Construct a solid embankment with adequate compaction by working smaller rock and fines in with the larger rocks to fill the voids, and by operating hauling and spreading equipment uniformly over the full width of each layer as the embankment is constructed.

(e) Layer Placement (Roller Compaction) Method. Place material by end dumping to the minimum depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases or, in when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes.

204.14_nat_us_03_02_2005

204.14 Disposal of Unsuitable or Excess Material.

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

Dispose of unsuitable or excess material at designated sites or legally off of the project.

204.15_nat_us_02_07_2007

204.15 Acceptance

Table 204-1 Sampling and Testing Requirements.

Add the following note to the table:

(2) When compaction methods (d) or (e) are used AASHTO M 145, T 99, T 180, and T 310 are not required for earth embankment test methods.

208 - Structure Excavation and Backfill for Selected Major Structures

208.04_nat_us_06_13_2007

Construction Requirements

208.04 General.

Add the following to the end of the second sentence of the third paragraph:

"... to the CO a minimum of 5 days prior to beginning excavation work."

Add the following to the end of the third sentence of the third paragraph:

"...to the CO a minimum of 15 days prior to installation."

208.09 Foundation Preparation.

Add the following after the first paragraph:

The foundation elevation is defined as the bottom of footings, for spread footing placement; the bottom of the pile cap, for construction of pile foundations; and the toe of the wall, for construction of retaining walls, except wingwalls at bridges.

Replace all material from any over-excavation below the designated footing elevation with concrete, compacted gravel, or foundation fill at the direction of the CO.

When boulders or irregular, fractured, or seamed bedrock precludes excavation to the designated footing elevation without further loosening of previously solid material, the CO may order removal of such loose material and allow payment for concrete, gravel, or structural backfill that is required to restore foundation material to the designated elevation

208.13 Measurement.

Add the following to the second paragraph:

(f) Material excavated to construct end walls or wing walls which lie outside the excavation limits specified above.

Add the following paragraph:

Foundation over-excavation and the resulting replacement material will not be measured for payment unless the CO determines the over-excavation was unavoidable because of the nature of the material.

251 - Riprap

251.03_nat_us_06_18_2007

Construction Requirements

251.03 General.

Add the following:

Place riprap under or adjacent to structures before placing prefabricated superstructure units or constructing superstructure falsework unless otherwise approved by the CO.

251.08 Measurement.

Add the following:

Payment for excavation and embankment required for placement of riprap is indirectly included in the pay item for riprap.

301 - Untreated Aggregate Courses

301.00_nat_us_03_03_2005

301 Title Change.

Change the title to: Section 301 - Aggregate Courses 301.01_nat_us_03_03_2005

301.01 Work.

Add the following:

Work includes producing aggregate by pit-run, grid rolling, screening, or crushing methods, or placing Government-furnished aggregate. Work may include additive mineral filler, or binder.

301.02_nat_us_05_16_2005

301.02 Material.

Add the following:

301.03_nat_us_09_14_2005

301.03 General.

Add the following:

Written approval of the roadbed is required before placing aggregate.

For pit run or grid-rolled material, furnish material smaller than the maximum size. No gradation other than maximum size will be required for pit-run or grid-rolled material. For grid rolling, use all suitable material that can be reduced to maximum size. After processing on the road, remove all oversize material from the road and dispose of it as directed by the CO.

Provide additives or binder, if required, at the proportions specified.

Develop and use Government furnished sources according to Section 105.

If the aggregate is produced and stockpiled before placement, handle and stockpiled according to Section 320. Establish stockpile sites at locations approved. Clear and grub stockpile sites according to Section 201.

301.04_nat_us_03_03_2005

301.04 Mixing and Spreading.

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

Ensure that aggregate and any required additives, water, mineral filler, and binder are mixed by the specified method except, if crushed aggregate products are being produced and mineral filler, binder, or additives are required, uniformly blend following crushing. Control additive proportions to 0.5 percent dry weight.

(a) Stationary Plant Method. Mix the aggregate with other required materials in an approved mixer. Add water during the mixing operation in the amount necessary to provide the moisture content for compacting to the specified density. After mixing, transport the aggregate to the jobsite while it contains the proper moisture content, and place it on the roadbed or base course using an aggregate spreader.

(b) Travel Plant Method. After placing the aggregate for each layer with an aggregate spreader or windrow-sizing device, uniformly mix it with other required materials using a traveling mixing plant. During mixing, add water to provide the necessary moisture content for compacting.

(c) Road Mix Method. After placing the aggregate for each layer, mix it with other required materials at the required moisture content until the mixture is uniform throughout. Mix aggregate, water, and all other materials until a uniform distribution is obtained.

Spread the aggregate in a uniform layer, with no segregation of size, and to a loose depth that will provide the required compacted thickness.

When placing aggregate over geotextile, place aggregate in a single lift to the full depth specified.

Route and distribute hauling and leveling equipment over the width and length of each layer.

301.05_nat_us_05_17_2005

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. Along curbs, headers, walls, and all places not accessible to the roller, compact the material with approved tampers or compactors.

Compact…