supplemental specs.pdf

Forest Service Supplemental Specifications

FSR 12

Table of Contents

Table of Contents

Preface

101 - Terms, Format, and Definitions

101.00 Conversion Factors – page iv

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

102 - Bid, Award, and Execution of Contract

102 Delete

103 - Scope of Work

Deletions

104 - Control of Work

Deletions

104.05 Load Restrictions

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

106.01 Conformity with Contract Requirements

106.07 Delete

107 - Legal Relations and Responsibility To the Public

107.02 Protection and Restoration of Property and Landscape

107.05 Responsibility for Damage Claims

107.09 Legal Relationship of the Parties

107.10 Environmental Protection

108 - Prosecution and Progress

108 Delete

109 - Measurement and Payment

109 Deletions

109.02 Measurement Terms and Definitions

154 - Contractor Sampling and Testing

155 - Schedules for Construction Contracts

155 Delete

203 - Removal of Structures and Obstructions

203.04 Removing Material

204 - Excavation and Embankment

204.06 Roadway Excavation

204.11 Compaction

204.14 Disposal of Unsuitable or Excess Material

204.15 Acceptance

303 - Road Reconditioning

303.03 Ditch Reconditioning

303.04 Shoulder Reconditioning

303.05 Roadbed Reconditioning

303.07 Roadway Reconditioning

303.09 Acceptance

303.10 Measurement

322 - Minor Aggregate Courses

404 - Minor Hot Asphalt Concrete

404.02 Composition of Mix (Job-Mix Formula)

404.06 Placing

404.07 Compacting (a)

Table 404-1. Sampling and Testing Requirements

601 – Minor Concrete Structures

Description

601.01

Material

601.02

601.03 Concrete Composition

Construction Requirements

601.04 General

601.05 Placing Concrete

Table 601-1. Concrete discharge time limits

Table 601-2. Sampling and Testing Requirements

602 - Culverts and Drains

602.03 General

607 - Cleaning, Reconditioning, and Repairing Existing Drainage

607.04 Cleaning Culverts in Place

703 - Aggregate

703.05 Subbase, Base, & Surface Course Aggregate

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_m_07_25_2005

Include the following with all projects:

101.00 Conversion Factors – page iv

Delete the title, SI (1)

(METRIC) TO ENGLISH CONVERSION FACTORS (approximate) in the table on page iv and substitute the following:

SI

(1)

(METRIC) TO U.S. CUSTOMARY CONVERSION FACTORS (approximate)

Under ILLUNINATION in the same table on page iv, delete the unit, caldela/m

, and substitute the unit, candela/m

101.01_nat_m_02_17_2005

101.01 Meaning of Terms.

Add the following:

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

Sales, delete all references in FP-03 to Federal Acquisition Regulations (FAR).

101.03_nat_m_02_17_2005

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:

kmp Kilometer post ppm Part Per Million

101.04_nat_m_02_22_2005

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.

http://www.nist.gov/

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.

R ig h t o f

W a y

R o a d s id e R o a d s id e

C le a ri n g W id th

R o a d w a y

C le a ri n g

L im it X

Y

G ro u n d

L in e

T ra v e le d

W a y

C L B e rm

S u rf a c e

C o u rs e

B a s e

C o u rs e

F ill

S lo p e

B a c k S lo p e

D ra in a g e D itc h

G ro u n d

L in e

S u b g ra d e

R o a d B e d

S h a p e s a n d d im e n s io n s w ill v a ry t o f it l o c a l c o n d iti o n s

S e e d ra w in g s f o r ty p ic a l s e c tio n s

X a n d Y d e n o te c le a ri n g o u ts id e o f ro a d w a y

N o te

Right - of - Way Line

Right - of - Way Line

Clearing Limit

Shoulder

Shoulder

102 - Bid, Award, and Execution of Contract

102.00_nat_m_02_16_2005

102 Delete.

Delete Section 102 in its entirety.

103 - Scope of Work

103.00_nat_m_02_16_2005

Deletions

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

104.00_nat_m_02_17_2005

Deletions

Delete sections 104.01, 104.02, and 104.04.

104.06_nat_m_02_17_2005

104.05 Load Restrictions.

Add the following:

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_m_05_11_2004

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_m_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

106.01_nat_m_03_29_2005

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 cost to the Government.

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

(1) Sampling method;

(2) Number of samples;

(3) Sample transport;

(4) Test procedures;

(5) Testing laboratories;

(6) Reporting;

(7) Estimated time and costs; and

(8) Validation process.

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

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

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

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

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

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

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

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

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

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

106.07_nat_m_05_11_2004

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility To the Public

107.02_nat_m_02_17_2005

107.02 Protection and Restoration of Property and Landscape.

Do not work during Puerto Rican Parrot breeding season of December 15 to July 15.

Do not work on segment from 0+000 to 0+375 before November 15 unless authorized by the

CO.

107.05_nat_m_05_11_2004

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06_nat_m_04_27_2005

107.09_nat_m_05_11_2004

107.09 Legal Relationship of the Parties.

Delete the entire subsection:

107.10_nat_m_02_23_2005

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 contractor had with news media, Federal, state and local regulatory agencies and officials, or Forest Service officials.

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

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

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

108 - Prosecution and Progress

108.00_nat_m_02_16_2005

108 Delete

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.00_nat_m_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_m_02_23_2005

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 that cause the pay item quantity to change by 15% or more.

109.02 Measurement Terms and Definitions.

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

152.02_0816_m_07_08-2011

152.02 General.

Delete paragraphs one to four and substitute with the following: The Government will set control point at the beginning of project (BOP).

Delete references and requirements to meet tolerances in Table 152-1 in sixth and ninth paragraphs.

152.03 Survey and Staking requirements

(a) Control Points. Delete second sentence.

Delete paragraphs (c) through (e) and substitute with: Surveying, staking and marking requirements are SHOWN ON PLANS.

(f) Grade finishing stakes. Delete second paragraph.

Delete paragraphs (h) through (I), including table 152-1.

152.05 Measurement. Delete third and fourth paragraphs.

154 - Contractor Sampling and Testing

154.01_nat_m_05_24_2005

154.01 Description

Delete the last sentence of the first paragraph.

155 - Schedules for Construction Contracts

155.00_nat_m_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

203 - Removal of Structures and Obstructions

203.04_nat_m_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 300 millimeters 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 300 millimeters below subgrade elevation.

Remove structures and obstructions outside the roadbed to 300 millimeters below finished ground or to the natural stream bottom.

204 - Excavation and Embankment

204.06_0114_m_07_06_2005

204.06 Roadway Excavation

(d) Drainage Excavation. Drainage excavation includes construction of side ditches, minor channel changes, inlet and outlet ditches, furrow ditches, rolling drainage dips, surface water deflectors and other minor earth drainage structures as shown on the plans. Compaction for drainage excavation is as shown on the plans.

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 4.75-millimeter sieve. For compaction methods (d), (e), or (f) no sieve test is required.

Add the following compaction methods:

(d) Hauling and Spreading Equipment. Adjust the moisture content to a level suitable for compaction. Compact the material by operating equipment over the full width of the roadway.

(e) Roller Compaction. Adjust the moisture content to a level suitable for compaction. Operate

Rollers over the full width of each layer until visual displacement ceases, but not fewer than three complete passes. Use rollers that meet the following requirements:

(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than

44 Newton per millimeter of width of the compression roll or rolls.

(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum weight of 6 tons, specifically designed to compact the material on which it is used.

(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 550 kPa.

(4) Sheepsfoot, tamping, or grid rollers capable of exerting a force of 44 Newton/mm of width of roller drum.

(f) Mechanical Tamper. Adjust the moisture content of the backfill material to a moisture content suitable for compaction. Compact each 150 mm layer with a minimum of three complete passes with a mechanical tamper, approved by the CO.

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 the project.

204.15 Acceptance

Delete the first paragraph.

204.16_0816_m_07_08_2011

204.16 Measurement

(e) Waste. Delete 1 st sentence and replace it with the following: Measure waste by the cubic meter in its original position.

303 - Road Reconditioning

303.03_0114_m_08_04_2005

303.03 Ditch Reconditioning

Delete the last sentence and add the following:

Dispose of waste as shown on the plans.

303.04 Shoulder Reconditioning

Delete the last sentence and add the following:

Dispose of waste as shown on the plans.

303.05 Roadbed Reconditioning

Delete and add the following:

Repair soft and unstable areas according to Subsection 204.07. Remove all organic, deleterious material larger than 150 mm from the top 150 mm of subgrade. Dispose of waste as shown on the plans. Scarify and shape the traveled way and shoulders at locations and to the depth and width designated on the plans. Remove surface irregularities and shape to provide a uniform surface.

Dispose of rock larger than 100 mm brought to the surface during scarification in areas designated on the plans.

For portions of roads not requiring scarification, the roadbed may contain rocks larger than 100 mm provided they do not extend above the finished roadbed surface. Reduce in place or remove rock extending above the finished roadbed surface. Dispose of removed rock in areas designated on the plans.

Compact using the following method as specified:

(a) Compaction A. Operate equipment over the full width.

(b) Compaction B. Operate rollers over the full width of each layer until visual displacement ceases, but not fewer than three complete passes. Use rollers that meet the following requirements:

(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than

44 Newton per millimeter of width of the compression roll or rolls.

(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum weight of 6 tons, specifically designed to compact the material on which it is used.

(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 550 kPa.

303.07 Roadway Reconditioning

Blade and shape the subgrade for both surfaced and unsurfaced roads when moisture content is suitable for compaction.

303.09 Acceptance

Delete the first sentence.

303.10 Measurement

Delete the first sentence of the third paragraph and replace with:

Measure roadbed reconditioning, aggregate surface reconditioning, roadway reconditioning, and pulverizing by the kilometer, by the station, or by the square meter.

322 - Minor Aggregate Courses

322.00_nat_m_12_19_2005

Description

322.01 This work consists of constructing one or more courses of aggregate on a prepared surface. Work includes producing aggregate by grid rolling, screening, or crushing methods, or placing pit-run or Government-furnished aggregate.

Surface aggregate grading is designated as shown in Table 703-3.

Subbase and base aggregate grading is designated as shown in Table 703-2.

Screened aggregate grading is designated as shown in Table 703-16.

Material

322.02 Conform to the following Subsections:

Aggregate 703.05

Water 725.01

Construction Requirements

322.03 General. Prepare the surface on which the aggregate course is placed according to Section

204 or 303 as applicable.

Request approval of the roadbed in writing before placing aggregate.

Develop, haul, and apply water in accordance to Section 170.

Submit target values within the gradation ranges shown in Table 703-2 or 703-3 for the required grading. After reviewing the proposed target values the CO will determine the final values for the gradation and notify the Contractor in writing.

No quality requirements or gradation other than maximum size will be required for pit run and 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.

If the aggregate is produced and stockpiled before placement, handle and stockpiled according to

Section 320. Establish stockpile sites at approved locations.

322.04 Mixing and Spreading. Mix the aggregate and adjust the moisture content to obtain a uniform mixture with a moisture content suitable for the specified compaction method. Spread and shape the mixture on the prepared surface in a uniform layer with no segregation of size, and to a loose depth that will provide the required compacted thickness.

Do not place in layers exceeding 150 mm in compacted thickness for aggregate base and surface courses or twice the maximum particle size for screened aggregate. When more than one layer is necessary, compact each layer according to Subsection 322.05 before placing the next layer. Route hauling and leveling equipment uniformly over the full width.

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

322.05 Compacting. 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 the aggregate using one of the following methods as specified:

Compaction A. Operating spreading and hauling equipment over the full width of the travelway.

Compaction B. Operate rollers and compact as specified in Subsection 204.11(a)(1).

Compaction C. Moisten or dry the aggregate to a uniform moisture content between 5 and 7 percent based on total dry weight of the mixture. Operate rollers and compact as specified in Subsection 204.11(a)(1).

Compaction D. Compact to a density of at least 95 percent of the maximum density, as determined by AASHTO T 99, method C or D.

Compaction E. Compact to a density of at least 96 percent of the maximum density, as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box

7669, Missoula, MT 59807).

Compaction F. Compact to a density of at least 95 per-cent of the maximum density, as determined by AASHTO T 180, method C or D.

Compaction G. Compact to a density of at least 100 percent of the maximum density as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box

7669, Missoula, MT 59807).

For all compaction methods, blade the surface of each layer nbduring the compaction operations to remove irregularities and produce a smooth, even surface. When a density requirement is specified, determine the in place density and moisture content according to AASHTO T 310 or other approved test procedures.

322.06 Construction Tolerance. If grade finishing stakes are required, finish the surface to within ±30 mm from staked line and grade elevation.

If grade finishing stakes are not required, shape the surface to the required template and check the surface with a 3 meter straightedge. Defective areas are surface deviations in excess of 15 mm in 3 meters between any two contacts of the straightedge with the surface.

Correct all defective areas by loosening the material, adding or removing material, reshaping, and compacting.

Ensure that the compacted thickness is not consistently above or below the specified thickness.

The maximum variation from the compacted specified thickness is 15 mm.

Ensure that the compacted width is not consistently above the specified width. The maximum variation from the specified width will not exceed +300 mm at any point.

322.07 Maintenance. Maintain the aggregate course to the correct line, grade, and cross-section by blading, watering, rolling, or any combination thereof until placement of the next course.

Correct all defects according to Subsection 322.06.

322.08 Acceptance. See Table 322-1 or Table 322-2 as applicable, for sampling and testing requirements.

Aggregate gradation and surface course plasticity index will be evaluated under Subsection 106.04.

If the aggregate is obtained from a Government stockpile then the above characteristics will be evaluated under Subsection 106.02. Other aggregate quality properties will be evaluated under

Subsections 106.02 and 106.04. Placement of aggregate courses will be evaluated under

Subsections 106.02 and 106.04.

The allowable upper and lower aggregate gradation limits are the Target Value plus or minus the allowable deviations shown in Tables 703-2 and 703-3.

The allowable upper and lower Plasticity index limits for surface courses are stated in 703.05(b).

Preparation of the surface on which the aggregate course is placed will be evaluated under Section

204 or 303 as applicable.

Measurement

322.09 Measure the Section 322 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure square meter width horizontally to include the top of aggregate width including designed widening. Measure the square meter length horizontally along the centerline of the roadway.

If the measurement for aggregate is by cubic meter using contract quantities then measure aggregate by the cubic meter in-place once compacted, otherwise measurement for aggregate by the cubic meter is measured by the cubic meter in the hauling vehicle.

Measure thickness perpendicular to the grade of the travelway.

Measure width perpendicular to the centerline.

Payment

322.10 The accepted quantities will be paid at the contract price per unit of measurement for the

Section 322 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

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404 - Minor Hot Asphalt Concrete

404.02_nat_m_03_02_2005

404.02 Composition of Mix (Job-Mix Formula).

Delete the second paragraph and replace with the following:

Submit a job-mix formula and supporting documentation, test results, and calculations for the material to be incorporated into the work. Include copies of laboratory test results and mix design data that demonstrate that the properties of the aggregate, additives, and mixture meet the current requirements and criteria of Federal or state agencies. After reviewing the Contractor’s proposed job-mix formula, the CO will determine the final values for the job-mix formula to be used and notify the Contractor in writing.

404.06_nat_m_03_02_2005

404.06 Placing.

Add the following:

Do not place asphalt until the CO has approved in writing the area where it will be placed.

Delete the last sentence and replace with the following:

Offset the longitudinal joint of one layer at least 150 millimeters from the joint in the layer immediately below. Make the longitudinal joint in the top layer along the centerline of two-lane roadways or at the lane lines of roadways with more than two lanes. Offset transverse joints in succeeding layers and in adjacent lanes at least 3 meters, where possible.

404.07_nat_m_03_02_2005

404.07 Compacting (a).

Delete and replace with the following:

(a) Roadway paving. Thoroughly and uniformly compact the surface a minimum of three passes with rollers that meet one of the following requirements:

(1) Steel-wheeled rollers, other than vibratory type, capable of exerting a force of not less than

4.5 kilogram/millimeters of width of the compression roll or rolls.

(2) Vibratory steel-wheel rollers with a minimum mass of 5 ton, equipped with amplitude and frequency controls, and designed to compact asphalt concrete.

(3) Pneumatic-tire rollers with smooth tread tires of equal size that provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 550 kPa.

Perform initial compaction while the mixture is above 120 °C. Perform finish rolling with steel-wheel rollers and continue until no roller tracks remain.

404.09_nat_m_03_02_2005

Table 404-1. Delete and replace with the following:

Table 404-1. Sampling and Testing Requirements.

Material or

Product

Type of

Acceptance

(Subsection)

Characteristic Category Sampling

Methods

Specifications

Sampling

Frequency

Point of

Sampling

Split

Sample

Reporting

Time

Asphalt

Mixture

(404.09)

- - - AASHTO T

Three minimum per project and at least one per

500 Cubic meters

Roadway prior to compaction yes As soon as sampled

601 – Minor Concrete Structures

Delete the entire specification and replace it with the following:

Description

601.01 This work consists of constructing minor concrete structures.

601.02 Conform to the following Subsections:

Air-entraining admixtures 711.02

Chemical admixtures 711.03

Coarse aggregate 703.02

Concrete coloring agents 711.05

Curing material 711.01

Fine aggregate 703.01

Fly ash 725.04

Hydraulic Cement 701.01

Joint fillers 702.01

Precast concrete curbing 725.06

Precast concrete units 725.11

Reinforcing steel 709.01

Structural steel 717.01

Water 725.01

601.03 Concrete Composition. Use the designated concrete composition:

(a) Method A. Submit a mix design showing the proposed masses of aggregate, water, and cement per cubic meter of concrete a minimum of 7 days prior to beginning placement.

Proportion the cement, aggregate, and water to obtain concrete with good workability.

Composition of Minor Structure Concrete

Property Specification Test Method

Slump 100 mm maximum AASHTO T 119

Air content 5 to 7 percent AASHTO T 152 or T 196

28-day compressive strength 20,600 kPa AASHTO T 23 and T 22

(b) Method B. Submit the following information a minimum of 7 days prior to beginning placement:

(1) Type, grading, and sources of aggregate.

(2) Type and source of cement, blended cement, or fly ash.

(3) Saturated surface dry weights of the fine and coarse aggregate in kilograms per cubic meter of concrete.

(4) Weight of mixing water in kilograms per cubic meter of concrete.

(5) Weight of cement in kilograms per cubic meter of concrete.

(6) Admixture type, quantity, and certification by manufacturer.

(7) Air content.

(8) Slump.

(9) 28-day compressive strength.

Furnish concrete containing not less than 310 kilogram of cement per cubic meter. Ensure that slump is 100 millimeters or less, as determined by AASHTO T 119.

(c) Method C. Make the concrete using a dry, preproportioned, blended, and bagged mix meeting the requirements of ASTM C 387 and mixed at the jobsite according to the manufacturer’s recommendations.

(d) Fly Ash- or Pozzolan-Modified Concrete. Fly ash may be substituted for cement at the rate of

560 grams of fly ash per 450 grams of Portland cement. After substitution, reduce the design aggregate volumes by an amount equal to the net increase in volume of the combined cement and fly ash. Replace no less than 10 percent and no more than 20 percent of the weight of Portland cement required with fly ash at the above rate. For purposes of controlling the maximum water/cement ratio of 0.49, make the water/cement ratio for fly-ash-modified concrete the ratio of the weight of water to the combined weights of Portland cement and 60 percent of the weight of the fly ash.

Extend the standard 28-day curing period for compressive-strength tests for fly-ash modified concrete by 1 day (rounded to the nearest whole day) for each 1.5 percent of Portland cement replaced with fly ash at the selected rate. (Example: If the maximum of 20 percent cement is replaced, the curing period for cylinders is 41 days.)

Construction Requirements

601.04 General. Perform excavation and backfill work according to Section 209. When concrete is cracked, spalling, or scaling, remove concrete to the nearest joint.

Design and construct forms that are free of bulge and warp and allow for removal without injuring the concrete. When concrete contains a retarding admixture, fly ash, or other pozzolan replacement for cement, design the forms for a lateral pressure equal to that exerted by a fluid with a mass of 2400 kilograms per cubic meter.

Use wood, metal, or other suitable material for forms. Keep forms clean and coat with a form release agent or form oil before placing concrete.

Place and fasten reinforcing steel according to Subsection 554.08.

601.05 Placing Concrete. Place all reinforcing steel in position and ensure that it is securely held in place by approved supports during placing of concrete. Do not place concrete until the grading, forms, and steel reinforcements have been inspected and approved by the CO. Provide

24 hours written notice prior to placement of any concrete.

Place reinforcing steel according to Section 554.

Discharge all concrete prepared using methods A and B into the forms within the time limits shown in table 601-3. These time limits are based on jobsite ambient air temperature, cement type, and admixture used. Begin counting time from when the cement is introduced into the aggregate. Discharge concrete prepared using method C into the forms within 1-1/2 hours after introducing water to the mixture. Do not retemper concrete. When required cement must be added to the mixer at the jobsite. Do not mix or place concrete when the temperature is, or is expected to be, less than 5 °C unless adequate provisions are made to protect the concrete.

Place concrete to avoid segregation. Use high-frequency internal vibrators for consolidating concrete in the forms. Operate vibrators to produce concrete free of voids, but do not hold them in one place long enough to result in segregation or formation of laitance on the surface.

Method C concrete may be rodded instead of internally vibrated as necessary to remove voids.

Do not use aluminum pipe, conduit, or troughs for transporting concrete. When concrete is pumped, take samples from the discharge stream at the point of placement. Do not apply water to plastic concrete surfaces during finishing operations.

Table 601-1. Concrete discharge time limits.

Cement Type With and Without Admixtures Time limit (hour)

<30 o C

>30 o

Type I, IA, II, or IIA 2.0 1.5

Type I, IA, II, or IIA with water reducing or retarding admixture

3.0 2.0

Type III 1.5 1.0

Type III with water reducing or retarding admixture 2.0 1.5

Ambient air temperature.

601.06 Curing Concrete. Cure concrete a minimum of 7 days. If high early strength cement is used, cure concrete a minimum of 3 days. Cure according to Subsection 552.15. Finish according to Subsection 552.16 class 2 rubbed finish.

601.07 Acceptance. See Table 601-2 for sampling and testing requirements. Material for minor concrete structures including reinforcing steel, and structural steel for minor structures will be evaluated under Subsections 106.03. The concrete mixture's slump, air content, unit mass, and temperature will be evaluated under Subsections 106.02 and 106.04. See Tables 552-1 and 552-2 for specification limits.

Excavation and backfill will be evaluated under Section 209.

Construction of minor concrete structures will be evaluated under Subsections 106.02 and

106.04.

Measurement

601.08 Measure the Section 601 items listed in the bid schedule according to Subsection 109.02.

Payment

601.09 The accepted quantities will be paid at the contract price per unit of measurement for the

Section 601 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

The concrete lump sum item will be prorated based on the progress of the work under this

Section.

Table 601-2. Sampling and Testing Requirements.

or

Product

Type of

Acceptance

(Subsection)

Characteristic Category Test Methods

Specifications

Sampling

Frequency

Point of

Sampling

Split

Sample

Reporting

Time

Concrete Measured and tested for conformance

(106.04)

Unit Weight - AASHTO T 121 One set per

25 cubic meters but not less than one per day

Point of discharge

- Upon completion of project

Air content - AASHTO T 152 or AASHTO T

Slump - AASHTO T 119 ― ― - ―

Temperature - Field Measured ― ― - ―

Compressive strength

- AASHTO T 22 &

AASHTO T 23

― Discharge stream at point of placement

602 - Culverts and Drains

602.03_nat_m_09_06_2005

602.03 General.

Add the following:

Ensure that the final installed alignment of all pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 300 millimeters, whichever is less.

607 - Cleaning, Reconditioning, and Repairing Existing Drainage

607.04_nat_m_03_02_2005

607.04 Cleaning Culverts in Place.

Add the following:

If approved by the CO, all or part of the pipe designated to be cleaned in-place may be removed, cleaned, and re-laid in accordance with Section 602. In these cases, furnish all material required to replace damaged pipe and joints and relay the pipe.

703 - Aggregate

703.05_ 0816_m_07_08_2011

703.05 Subbase, Base, & Surface Course Aggregate.

(a) General.

Delete the first paragraph and add the following:

Furnish aggregate that consists of hard, durable particles or fragments of crushed stone, crushed slag, or crushed gravel meeting the gradation shown below and conforming to the following:

(1) Los Angeles abrasion, AASHTO T 96………...…..40% Max

(2) Durability index (coarse), AASHTO T 210……….35 min

(3) Durability index (fine), AASHTO T 210………….35 min

(b) Subbase or base aggregate.

Add:

(3) Plasticity Index……………………………………6 max

Delete Table 703-2 and add the following:

GRADING B

(c) Surface course aggregate.

Delete Table 703-3 and add the following:

Grading for Surface Course Aggregate

% Passing (AASHTO T27 & T11

Sieve Size

Grading Class

A #4

50 mm 100 100

37.5 mm 90-100

25 mm 50-80 20-55

19 mm‖ 0-15

12.5 mm

9.5 mm 0-5

4. 75 mm 20-50

75 µm 5-12

Plasticity

Index

2-9 NP

Sieve Size

% Passing

(AASHTO T 27 & T11)

37.5 mm 100

12.5 mm 40-75

4.75 mm 30-60

75 µm 5-12

703.07 Hot asphalt Concrete Pavement Aggregate.

Delete table 703-4 and add the following:

GRADING PRDOT S-1 (50)

Sieve Size

% Passing

(AASHTO T 27 & T11)

37.5 mm 100

25 mm 85-100

19 mm‖ 70-90

4.75 mm 50-70

2.36 mm 35-50

600 µm 18-29

300 µm 13-23

150 µm 8-16

75 µm 4-10