SectionC.pdf

12569R18R0007 Whirlpool Parking Area Paving

SECTION C – DESCRIPTION, STATEMENT OF WORK AND SPECIFICATIONS

Whirlpool Parking Area Paving

HURON-MANISTEE NATIONAL FORESTS

IOSCO COUNTY, MICHIGAN

PROJECT DESCRIPTION AND LOCATION

1. DESCRIPTION OF WORK

This project consists of drainage improvements and HMA placement. Work includes, but is not limited to, mobilization, construction staking, earthworks, placing aggregate, placing HMA-

LVSP, installing CMP’s, removing and transporting timber wheelstops, furnishing and placing topsoil, placing conserved topsoil, turf establishment, and placing pavement markings.

Please note that this is a Federal Construction project and Davis Bacon wages apply. Please refer to appropriate wage determination.

2. PROJECT LOCATION

Project is located in Iosco County, Michigan.

Driving directions are as follows: From the intersection of US-23 and River Road in Oscoda

MI, go 3.1 miles West on River Road to FSR 4851/ Whirlpool Rd, go north on FSR 4851 0.6 miles until you reach the project location.

3. PERIOD OF PERFORMANCE

The period of performance of this project is 25 days, and is scheduled from 09/04/18 through

09/28/18.

Work at the site shall be conducted between Monday through Friday. No on site work shall be performed on Government holidays. Exceptions to these hours of operation will be allowed only by written authorization by the Government. Bidders are required to provide a basic project schedule as part of the proposal.

The Forest Service, US Department of Agriculture has adopted the Standard Specifications for

Construction of Roads and Bridges on Federal Highway Projects, FP-03, U.S. Customary Units (FP-03) for construction of National Forest System Roads and other projects.

The full provisions of FP-03 shall apply as applicable on this contract, unless modified by these Special

Project Specifications.

The full FP-03 specification documents are available online at:

http://www.wfl.fhwa.dot.gov/design/specs/fp03.htm

The FP-03 Metric and U.S Customary versions are available in a 6¼" x 9¼" wire bound paper form. They are for sale by the U.S. Government Printing Office by contacting:

Superintendent of Documents

U.S. Government Printing Office

Internet: bookstore.gpo.gov

Phone: (toll free) 866.512.1800

Fax: 202.512.2250

Mail: Stop SSOP, Washington, DC 20402-0001

ISBN 0-16-051430-4 (Metric Version)

Stock Number: 050-001-00341-4 (U.S. Customary) http://www.wfl.fhwa.dot.gov/design/specs/fp03.htm

STANDARD SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON

FEDERAL HIGHWAY PROJECTS, FP-03, AS MODIFIED BY U.S. FOREST SERVICE

SPECIAL PROJECT SPECIFICATIONS

Table of Contents

Submittals and Notifications

Preface

101 - Terms, Format, and Definitions

102 - Bid, Award, and Execution of Contract

103 - Scope of Work

104 - Control of Work

105 - Control of Material

106 - Acceptance of Work

107 - Legal Relations and Responsibility To the Public

108 - Prosecution and Progress

109 - Measurement and Payment

151 – Mobilization

152 – Construction Survey and Staking

155 - Schedules for Construction Contracts

156 - Public Traffic

171 - Weed and Disease Prevention

201 - Clearing and Grubbing

204 - Excavation and Embankment

301 - Untreated Aggregate Courses

401 – Superpave Hot Asphalt Concrete

602 – Culverts and Drains

609 - Curb and Gutter

624 - Topsoil

625 - Turf Establishment

634 - Permanent Traffic Control

635 - Temporary Traffic Control

Submittals and Notifications

Submittal Schedule:

The following required items need to be submitted according to the schedule shown to prevent delays or stoppages of work.

ITEM ACTION SCHEDULE

Construction Schedule Approval by

CO/COR

2 weeks before mobilization

List of Subcontractors and Suppliers For Record* 2 weeks before mobilization

List of Emergency contact names, numbers and title of personnel.

Approval by

CO/COR

2 weeks before mobilization

Letter of Contractor’s on-site superintendent Approval by

CO/COR

2 weeks before mobilization

Sieve Analysis of Aggregates Approval by

CO/COR

7 days prior to use

Aggregate weight slips Approval by

CO/COR

As delivered

HMA mix design Approval by

CO/COR

7 days prior to use

HMA weight slips Approval by

CO/COR

As delivered

Culvert Specification sheets Approval by

CO/COR

7 days prior to use

Certified Payroll Approval by

CO/COR

With invoices

* "For record" assumes that an Item which meets Specifications as written is supplied. Other "equal" products require review and approval by the CO/COR, and may take longer to review.

Notification Schedule:

The following events require an advance written notification to the COR. Notifications may be faxed, mailed, emailed, or hand delivered.

EVENT PRIOR NOTICE REQUIRED

Change in Schedule As soon as identified

Intent to mobilize 48 hours

Intent to start HMA placement 48 hours

Preface

Delete all but the first paragraph and add the following:

Preface_wo_03_15_2004_m

The Forest Service, US Department of Agriculture has adopted FP-03 for construction of

National Forest System Roads.

101 - Terms, Format, and Definitions

101.01 Meaning of Terms

101.01_nat_us_01_22_2009

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

101.3 Abbreviations.

Add the following to (a) Acronyms:

101.03_nat_us_06_16_2006

Add the following to (b) SI symbols:

mp Milepost ppm Part Per Million

101.4 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Bridge--No definition.

101.04_nat_us_03_29_2007

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:

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

Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition

Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

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

“design change” as used in the Timber Sale Contract.

Design Quantity--“Design quantity” is a Forest Service method of measurement from the FS-96

Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.

Forest Service--The United States of America, acting through the Forest Service, U.S.

Department of Agriculture.

Neat Line--A line defining the proposed or specified limits of an excavation or structure.

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

Purchaser--The individual, partnership, joint venture, or corporation contracting with the

Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse--A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order--An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36

CFR, part 260.

Schedule of Items--A schedule in the contract that contains a listing and description of construction items, quantities, units of measure, unit price, and amount.

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

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

Figure 101-1—Illustration of road structure terms.

102 - Bid, Award, and Execution of Contract

102 Bid, Award, and Execution of Contract

Delete Section in its entirety.

102.00_nat_us_02_16_2005

103 - Scope of Work

103 Scope of Work

Delete all but subsection 103.01 Intent of Contract.

103.00_nat_us_02_16_2005

104 - Control of Work

Deletions

Delete subsections 104.01, 104.02, and 104.04.

104.00_nat_us_06_16_2006

Add the following subsection:

104.06 Use of Roads by Contractor

104.06_nat_us_02_17_2005

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 Material Sources.

105.02(a) Government-provided sources.

105.02_nat_us_01_18_2007

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 Use of Material Found in the Work.

105.05_nat_us_05_12_2004

Delete subsection 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 Conformity with Contract Requirements.

Delete Subsection and replace with the following:

Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.

106.01_nat_us_07_31_2007

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

106.5 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 Partial and Final Acceptance.

Delete subsection in its entirety.

106.07_nat_us_05_11_200

107- Legal Relations and Responsibility To the Public

107.05 Responsibility for Damage Claims.

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

107.06_nat_us_06_16_2006

107.09 Legal Relationship of the Parties.

107.10 Environmental Protection.

107.09_nat_us_06_16_2006

107.10_nat_us_06_16_2006

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.

Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

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

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

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

Containment procedures.

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

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

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

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

108 - Prosecution and Progress

108 Prosecution and Progress.

108.00_nat_us_02_16_2005

109 - Measurement and Payment

109 Deletions

Delete the following subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

109.00_nat_us_02_17_2005

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

109.02_nat_us_06_16_2006

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.

151.02 Measurement

Delete subsection in its entirety:

151.03 Payment

151 – Mobilization

Delete subsection and replace with the following:

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

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

Payment will only be made after all equipment needed for construction is onsite and requirements in Section 171 Weed and Disease Prevention are met.

152- Construction Survey and Staking

Description

152.02 152.01(c) Material.

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 or permanent marker.

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

152.03 General.

Delete the first three sentences.

Add the following:

Contractor shall hire a professional surveyor to layout site. Elevations are not required for this project. COR will work with contractor when elevations are required on plans.

Upon request, Government will provide AutoCAD drawing file of siteplan.

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 and until area is paved.

Delete the following sub-section and replace with the following:

152.04 Survey and Staking Requirements.

Offset stakes at contractor’s preference, but not more than 5’.

Stake all corners, radii, and along roadways.

Radii shall be marked at beginning of curve, end of curve, midpoint of curve, and every 5’ along the curve.

Along straight sections, place a stake at minimum every 20’

Replace Table 152-1 with the following two tables and add the following:

Use Precision Class B

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

Precision

Class

Minimum

Position

Closure

Angular Accuracy (±)

L-Line Tangent

Control Pointsa

Vertical Closureb

A

(Bridges)

1/10,000

2 sets, direct/reverse

10 second rejection limit

N/A

0.02 ft or

0.02ft/1000ftc

B

1/5,000

2 sets, direct/reverse

20 second rejection limit

0.1 ft

0.02 ft or

0.02ft/1000ftc

C

1/1,000

1 set, direct/reverse

1 minute rejection limit

0.2 ft

0.5ft/1000ftc

D

1/300

Foresight and backsight;

15 minute rejection limitc

0.4 ft

1.0ft/1000ftc

E

1/100

Foresight and backsight;

30 minute rejection limitc

0.8 ft

1.0ft/1000ftc

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.

Item

Tolerances

A B C D E

Allowable deviation of cross-section line projection from a true perpendicular to tangents, a true bisector of angle points, or a true radius of curves

(±)2o (±)3o (±)3o (±)5o (±)5o

Take cross-sections topography measurements so that variations in ground from a straight line connecting the cross-section points will not exceed

0.5 ft 1.0 ft 2.0 ft 2.0 ft 3.0 ft

Horizontal and vertical accuracy for cross-sections, in feet or percentage of horizontal distance measured from traverse line, whichever is greater.

0.1 ft or

0.4%

0.15 ft or 0.6%

0.2 ft or

1.0%

0.2 ft or

1.0%

0.3 ft or

1.0%

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.

Slope reference stakes and slope stakes. 0.1 ft or

0.4%

0.15 ft or 0.6%

0.2 ft or

1.0%

0.2 ft or

1.0%

0.3 ft or

1.0%

Clearing limits 1.0 ft 1.0 ft 1.0 ft 1.5 ft 2.5 ft

155 - Schedules for Construction Contracts

155 Schedules for Construction Contracts.

155.00_nat_us_05_11_2004

156 - Public Traffic

Delete Section in its entirety and replace with the following:

156.00_nat_us_04_17_2007

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 633

Retro-reflective sheeting 718.01

Temporary concrete barrier 618

Temporary plastic fence 710.11

Temporary traffic control devices 718.22

156.03 General. Whirlpool Recreation site will be closed to all public traffic during the time of construction.

156.04 Temporary Traffic Control. Refer to Section 635 – Temporary Traffic Control.

156.05 Temporary Closures.

Delete subsection 156.05 in its entirety.

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 and is incidental to construction.

156.03_nat_us_02_24_2005

171 - Weed and Disease Prevention

Add the following section:

171.00_nat_us_03_30_2005

171.01 This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before and after the equipment is used on

National Forest System lands.

Material

171.02 Conform to the following Subsection:

Water 725.01

Construction Requirements

171.03 General. Notify the CO in writing at least 15 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

Delete the entire section and replace with the following:

201.01 Description.

201.01_nat_us_02_18_2005

This work consists of clearing and grubbing where the re-graded area and ditcline outlet into the wooded areas. Only remove trees and brush less than 5” diameter breast height (DBH). Weaving through larger trees may be necessary to construct outlet ditch.

201.02 General.

Clear area as necessary to outlet water into wooded areas as indicated on plans.

Outlet shall be at least 5’ wide.

Only remove trees and brush less than 5” diameter breast height (DBH). Weaving through larger trees may be necessary to construct outlet outlets.

201.03 Disposal.

Dispose of materials by scattering in the wooded area, but not within 10’ of open area within the recreation site. All trees will be bucked up and dispersed so that no portion of the tree is higher than 3’ from forest floor.

201.04 Measurement.

Do not measure clearing and grubbing for payment.

201.05 Payment.

Include all costs associated with Section 201 – Clearing and Grubbing in the unit price for

Section 204 - Earthwork.

204 – Excavation and Embankment

Delete entire section and replace with the following:

204.01 General.

Work consists of grading areas where HMA is to be placed, re-grading areas indicated on plans, constructing ditchline, and placing boulders.

204.02 Requirements

HMA Subgrade.

Grade all areas where HMA is to be placed as indicated on the plans. Ensure grading is cutting and loosening 2-3 inches of material.

Re-graded areas.

Grade areas as indicated on plans. All graded areas are to allow for the drainage of water. Grade areas to drain and ensure smooth transitions back to areas not being graded. COR will work with

Contractor to identify re-graded areas and to set elevations.

Ditchlines.

Construct ditchlines as indicated on plans. COR will work with Contractor to identify re-graded areas and to set elevations.

Boulder Placement.

Pick up boulders along FR 4580. The boulders are currently placed along the side of the roadway to block vehicular traffic. COR will select approximately every other boulder to use. Contractor will be responsible for picking up, loading, and transporting boulders to the construction site.

Boulders will be 3’-5’. Place boulders on-site where COR specifies. Minor adjustments to remaining boulders along FR 4580 may be necessary.

See attached map for boulder location and distance from construction site.

204.03 Compaction.

The contractor shall utilize a vibratory roller compactor.

Prior to compacting HMA subgrade, place 2” of aggregate base on top of subgrade.

Compact each layer of aggregate base to at least 95 percent of the maximum unit weight at a moisture content no greater than optimum for aggregate base.

204.04 Disposal of Excess Material

Dispose of excess material within the wooded area, near outlet of re-graded area on the southwest of the project area, as directed by the COR.

204.05 Measurement

Measure the Section 204 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure earthwork as lump sum.

204.06 Payment

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

2 0 4 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in the Section.

301 – Untreated Aggregate Courses

Delete section in its entirety and replace with the following:

301.01 Description.

This work consists of constructing one or more courses of aggregate on a prepared surface.

This section covers both parking area and shoulder aggregate.

301.02 General.

Prepare the surface on which the aggregate course is placed according to section 204.

301.03 Mixing and Spreading.

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.

Do not place the mixture in a layer exceeding 6 inches in compacted thickness. Route hauling equipment uniformly over the full width of the surface to minimize rutting or uneven compaction.

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.

301.04 Compacting.

The contractor shall utilize a vibratory roller compactor.

Compact each layer of aggregate base to at least 95 percent of the maximum unit weight at a moisture content no greater than optimum for aggregate base.

301.05 Inspection and Acceptance

Density tests are required. Contractor shall utilize an independent testing organization to perform the tests.

The independent testing organization shall conform to the following:

Utilize a nuclear density gauge as the testing device

Calculate the theoretical maximum specific gravity of the aggregate according to

AASHTO T 209

Perform no more than 15 tests.

Relay density findings to the contractor and COR on-site as test are being performed

Summarize findings in a written document, within 5 days of the tests.

301.06 Surface Tolerance.

The maximum variation from the compacted specified thickness is ½ inch. The compacted thickness is not consistently above or below the specified thickness and the average thickness of

4 random measurements for any ½ mile of road segment is within + ¼ inch of the specified thickness.

The maximum variation from the specified width will not exceed +2 inches at any point.

301.07 Quality.

Aggregate shall be crushed Michigan 22A and 23A, as defined in Michigan Department of

Transportation (MDOT) 2012 Standard Specifications for Construction, Table 902-1, Grading

Requirements, and Table 902-2, Physical Requirements for Coarse Aggregates, Dense-Graded

Aggregate, and Open Graded Aggregates.

Utilize MDOT 2012 Standard Specifications for Construction, Section 902 Aggregates.

301.08 Measurement

Measure the Section 301 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure aggregate by the cubic yard compacted in place.

301.09 Payment

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

Section.

401 – Superpave Hot Asphalt Concrete Pavement

Delete section in its entirety and replace with the following:

The Michigan Department of Transportation’s 2012 Standard Specifications for Construction, section 501, shall be utilized for HMA specifications.

Any reference to other MDOT Specifications apply, if it is directly related to the production and placement of HMA.

Add the following:

Where the following specifications contradict MDOT Section 501 specifications, the following shall govern.

401.01 Replace the word Department to Government and replace the word Engineer to COR.

401.02 Density tests are required. Contractor shall utilize an independent testing organization to perform the tests.

401.03 The independent testing organization shall conform to the following:

Utilize a nuclear density gauge as the testing device

Calculate the theoretical maximum specific gravity of the required mix design according to AASHTO T 209

Take no more than 15 tests

Relay density findings to the contractor and COR on-site as test are being performed

Summarize findings in a written document, within 5 days of the tests.

401.04 Compact HMA to no less than 91% of the maximum specific gravity determined by

AASHTO T 209

401.05 Measurement.

Measure the Section 403 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure HMA by the ton.

401.06 Payment.

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

Section.

Michigan Department of Transportation: 2012 Standard Specifications for Construction

Section 501. PLANT PRODUCED HOT MIX ASPHALT

501.01. Description. This work consists of providing and placing Hot Mix Asphalt (HMA) mix using Superpave Mixture Design Methods.

A. Terminology.

Broken Aggregate. Cracked aggregate caused by construction operations.

Crack. A visible fissure of varying length and orientation in the HMA, partially or completely through at least one course.

Flushing. A shiny or reflective condition, tacky to the touch, appearing on the HMA surface when asphalt binder collects in the voids at high pavement temperatures.

HMA Mix Design. The selection and proportioning of aggregates, mineral filler, Reclaimed Asphalt Pavement (RAP), and asphalt binder to meet the mix design criteria required by the contract.

HMA Segregation. Areas of HMA pavement exhibiting non-uniform distribution of coarse and fine aggregate particles, visually or otherwise identifiable.

Job Mix Formula (JMF). An HMA mix for a specific project, including adjustments to optimize the field application.

Lot. A discrete tonnage of one mix, typically made up of five sublots.

Pavement. The completed HMA placement, including layers on driving lanes and shoulders.

Pavement Edge. The extremity boundaries of the pavement.

Roller Cracking. High density surface map-cracking that appears immediately after rolling.

Rutting. A depression or displacement of the HMA surface that occurs in a longitudinal direction or a localized area.

Sublot. A portion of a lot represented by a complete set of quality assurance tests.

Target Value. A JMF parameter value that may be adjusted, if approved by the Engineer, to account for changes in the physical properties of the mixture.

501.02. Materials. Provide materials in accordance with the following:

Superpave HMA Mixtures

Superpave Aggregates Mineral Filler, 3MF Anti-Foaming Agent Asphalt Binders Bond Coat, SS-1h, CSS-1h

Plant produced HMA consists of asphalt binder, aggregates, mineral filler, and other additives.

Provide release agents that do not harm the HMA mixture. Do not use fuel oil or other distillate derivatives.

Provide the HMA mix type and the performance grade of asphalt binder as required by the contract.

Provide blended aggregates for HMA top course mixtures, except top courses for shoulders, bike paths, temporary roads, and parking areas, meeting the required Aggregate Wear Index (AWI).

A. Composition of HMA Mixtures.

1. Mix Design. Develop an HMA mix design in accordance with the HMA Production Manual and submit to the Department. The Department will evaluate the design in accordance with Section 1 of the HMA Production Manual, “Procedures for HMA Mix Design Processing.”

Provide written certification that the materials in the mix design are from the same source and meet the material properties in the mix design or the Department-approved JMF. Ensure that all JMF adjustments are in accordance with the HMA Production Manual.

The Contractor may use mix designs approved by the Department on other projects, if approved by the Engineer. Provide combined aggregate blends meeting the properties specified in section 902.

Provide a mix design that meets the requirements of Table 501-1, Table 501-2, and Table 501-3 as applied to combined aggregate blends.

For mix design purposes, top and leveling courses are the mix layers within 4 inches of the surface. The base course consists of the layers below 4 inches from the surface. For mix layers within the 4-inch threshold, if less than 25 percent of the mix layer is within 4 inches of the surface, the mix layer is a base course.

For projects that specify a mix type E03, the Contractor may use a mix type LVSP.

If High Stress HMA is shown on the plans, provide the same mix design as required for the mainline top and leveling courses, except change the performance graded binder as shown on the HMA application table.

Table 501-1 Superpave Mix Design Criteria

Design Parameter

Mix Number

5 4 3 2 LVSP

Percent of Maximum Specific Gravity (%Gmm) at the design number of gyrations, (Nd) (c)

96.0% (a)

%Gmm at the initial number of gyrations, (Ni)

See Table 501-3

%Gmm at the maximum number of gyrations, (Nm)

98.0%

VMA min % at Nd (based on aggregate bulk specific gravity, (Gsb)) (c)

15.00

14.00

13.00

12.00

14.00

VFA at Nd See Table 501-2 (b)

Fines to effective asphalt binder ratio (PNo200/Pbe)

0.6–1.2

Tensile strength ratio (TSR) 80% min

a. For mixtures meeting the definition for base course, design mixtures to 96.0% of Maximum Specific Gravity %Gmm at the design number of gyrations, (Nd). During field production, increase %Gmm at the design number of gyrations, (Nd) to 97.0%.

b. For base course or regressed shoulder mixtures, the maximum criteria limits do not apply.

c. Lower Target Air Voids by 1.0% if used in a separate shoulder paving operation, unless otherwise shown on the plans.

Table 501-2

VFA Minimum and Maximum Criteria

Estimated Traffic (million ESAL) Mix Type

Top & Leveling Courses Base Course

�0.3 LVSP 70–80 70–80

�0.3 E03 70–80 70–80

>0.3 – �1.0 E1 65–78 65–78

>1.0 – �3.0 E3 65–78 65–78

>3.0 – �10 E10 65–78 (a) 65–75

>10 – �30 E30 65–78 (a) 65–75

>30 – �100 E50 65–78 (a) 65–75

a. The specified VFA range for mix Number 5 is 73%–76%.

Table 501-3

Superpave Gyratory Compactor (SGC) Compaction Criteria

Estimated Traffic (million ESAL) Mix Type %Gmm at (Ni)

Number of Gyrations (a)

Ni Nd Nm

�0.3 LVSP 91.5% 6 45 70

�0.3 E03 91.5% 7 50 75

>0.3 – �1.0 E1 90.5% 7 76 117

>1.0 – �3.0 E3 90.5% 7 86 134

>3.0 – �10 E10 89.0% 8 96 152

>10 – �30 E30 89.0% 8 109 174

>30 – �100 E50 89.0% 9 126 204

a. Compact mix specimens fabricated in the SGC to Nd. Use height data provided by the SGC to calculate volumetric properties at Ni.. Compact mix specimens at optimum Pb to verify Nm for mix design specimens only.

2. Recycled Mixtures. The Contractor may substitute Recycled Asphalt Pavement (RAP) for a portion of the new material required to produce HMA mixture. Design and produce the mix to meet the criteria in this subsection and the contract.

a. Stockpile Requirements. Process RAP to the size required for the specified HMA mix. Ensure the stockpile contains enough material to produce the recycled mixtures the Engineer approves for the project. If the RAP stockpile is not sufficient to produce recycled mix quantities required for the project, provide an Engineer-approved mix design without RAP at the same unit price.

Provide documentation of testing and accumulated tonnage in the stockpile to the MDOT laboratory. The Contractor may estimate the tonnage. The Department will begin evaluating the mix design after receipt of the documentation.

b. Mix Design. Submit required documentation for recycled mix designs in accordance with Section 1 of the HMA Production Manual, “Procedures for HMA Mix Design Processing.”

B. HMA Plant Certification. Ensure hot mix asphalt plants are certified by the Department at least 3 work days before mix production begins.

The Engineer will certify hot mix asphalt facilities in accordance with Section 2 of the HMA Production Manual, “Certification Procedure of HMA Plants.” Post a seal of certification in the plant control office.

C. HMA Production. Submit an approved mix design for the mix required to the Engineer at least 2 work days before production begins.

Ensure even heating of the mass of asphalt binders and maintain heat control. Heat asphalt binders to the temperature required for the type of binder, except ensure that neither the asphalt binder nor the HMA exceed the maximum temperature specified in Table 904-7. The Department will reject asphalt binder and mix if the temperature exceeds the maximum specified in Table 904-7. The Department will reject contaminated asphalt binder.

Stockpile aggregates at the facility, in a manner that prevents segregation. Dry aggregates to a moisture content that will ensure an appropriately coated HMA mix. For batch and continuous plants, the Department will reject aggregates in the hot bins that contain sufficient moisture to cause foaming or a water-saturated mixture. Remove rejected materials from the bins.

Place uniform gradations of aggregates in the cold feed system. If providing a blend of aggregates for the mix by combining aggregates from at least two cold feed bins, ensure the blend meets the combined gradation (from JMF) quality control tolerances.

The Engineer will allow the use of at least one hot aggregate bin to proportion aggregates to meet the JMF tolerances, if the cold feed requirements are met.

501.03. Construction.

A. Equipment. Provide equipment in accordance with section 107, capable of producing pavement that meets the requirements of this section.

1. Cold-Milling Machines. Provide equipment that consistently removes the HMA surface, in one or more passes, to the required grade and cross section, and produces a uniformly textured surface.

Provide machines equipped with the following:

a. Automatically controlled and activated cutting drums, and

b. Grade reference and transverse slope control capabilities.

2. Hauling Equipment. Ensure transport trucks are equipped to protect the mix from the weather and retard the loss of heat.

3. Pressure Distributor. Provide a pressure distributor in accordance with subsection 505.03.A.1.

4. Pavers. Equip each paver with a full-width vibratory or tamper bar screed capable of spreading and finishing HMA to the required cross section and grade. Use a paver that produces a uniformly finished surface, free of tears, other blemishes, and measurable segregation.

Equip the paver to provide a uniform head of material ahead of the screed. Install reverse pitch augers or paddles inside the ends of the auger shafts to force the mix to the center of the main screed.

Ensure extensions, added to the main screed, provide the same vibrating or tamping action and heating capabilities as the main screed. Adjust extensions to the main screed so, after breakdown rolling, no longitudinal marks remain on the surface. Equip in-line screed extensions with a continuation of the automatically controlled spreading augers to within 12 inches of the outside edge. Follow the manufacturer’s recommendations for other screed extensions.

Except for the paving operations listed in subsection 501.03.F.1.a through subsection 501.03.F.1.d, equip pavers with an automatically controlled and activated screed with grade reference and transverse slope control. Use an Engineer-approved grade referencing attachment, at least 30 feet long, for lower courses and the first pass of the top course. Ensure the Engineer approves alternate grade referencing attachments before use.

After placing the first pass of the top course, the Contractor may, with prior approval from the Engineer, substitute a joint matcher, a grade referencing attachment at least 10 feet long, or other grade referencing equipment for constructing adjacent passes of the top course.

5. Rollers.

a. Steel-Wheeled Rollers. Provide self-propelled vibratory steel-wheeled rollers, static tandem rollers, or self-propelled static three-wheeled rollers. Provide a steering device that allows the roller to follow the established alignment. Equip rollers with wheel sprinklers and scrapers. Provide smooth roller wheels, free of openings or projections that will mar the pavement surface.

Provide vibratory rollers with an automatic shutoff to deactivate the vibrators if the roller speed decreases below ½ mph. Provide rollers that operate in accordance with the manufacturer's recommended speed, impacts per foot, and vibration amplitude for the thickness of HMA mix.

b. Pneumatic-Tired Rollers. Provide self-propelled pneumatic-tired rollers. Equip rollers with at least seven wheels spaced on two axles so the rear group of tires does not follow in the tracks of the forward group, providing at least ½-inch tire path overlap.

Provide smooth tires capable of being inflated to the pressure recommended by the roller or tire manufacturer. Equip the rollers with a mechanism that can smoothly reverse the motion of the roller.

Equip the rollers with wheel scrapers and skirting to enclose the wheels to within 3 inches of the pavement surface. Use a release agent to prevent material from sticking to the tires and being deposited on the top course pavement during rolling.

c. Combination Rollers. The Contractor may use combination pneumatic-tired and steel-wheeled rollers manufactured specifically for HMA compaction, if equipped with the required sprinklers and scrapers.

6. Spreaders. Use self-propelled spreaders capable of pushing the hauling units. Ensure spreaders can maintain the required width, depth, and slope, without causing segregation.

7. Material Transfer Device. When a Material Transfer Device (MTD) is required, it must be capable of delivering HMA mix from the truck transport to the paver hopper to ensure constant paver speed, remixing HMA material using manufacturer’s developed technology, and depositing material in the paver hopper. Provide a paver hopper insert with at least a 10 ton capacity in the paver and keep at least one-third full of mix during paving.

8. Compressed Air System. If a compressed air system is required for cleaning pavement, equip the air compressor with a moisture separator to remove oil and water from the air supply. Provide a compressor capable of producing at least 100 psi and continuous 150 cfm airflow.

9. Miscellaneous Equipment. Provide a straightedge at least 10 feet long and other tools to finish the work.

10. Lights on Equipment. If maintaining traffic on HMA construction, equip equipment within the project, including cold-milling machines, distributors, and rollers, with at least one Department-approved flashing, rotating, or oscillating amber light. Equip pavers with at least one light on each side. Mount the lights so the warning signal is visible to traffic in every direction. Operate the lights while work is in progress. Ensure hauling units activate four-way flashers on the project.

B. Preparation of Base. Provide subgrade, subbase, aggregate base course, crushed and shaped base, or rubblized base in accordance with the relevant sections of Division 2 and Division 3, before HMA placement.

C. Preparation of Existing Pavement. Prepare the existing surface as required to construct HMA pavements, shoulders, and approaches.

1. Drainage Structures, Monument Boxes, and Water Shutoffs.

Adjust, temporarily lower, or both, catch basins, manhole covers, monument boxes, and water shutoffs in accordance with subsection 403.03.A.

2. Cleaning Pavement. Using methods approved by the Engineer, clean dirt and debris from the pavement surface and paved shoulders before placing HMA. Remove loose material from joints and cracks using compressed air.

If the Engineer determines the compressed air system will not remove deleterious material, remove loose material by a hand or mechanical method, as approved by the Engineer. The Department will pay for removal of material by hand or mechanical methods in accordance with subsection 501.04.E.

Do not place HMA until the Engineer inspects and approves the condition of the existing pavement.

3. Removing Existing Pavement for Butt Joints. If a butt joint is required, remove the existing surface to the thickness of the proposed overlay, for the full width of the joint. Uniformly taper the removal to the original surface over at least 35 feet.

4. Edge Trimming. For required removal of HMA shoulder material or no greater than 1 foot width of HMA pavement, cut the HMA material full depth along the pavement edge or removal line to prevent tearing the pavement surface. Cut joints, where the completed surface will be exposed, with a saw, cold-milling machine, or other methods approved by the Engineer. Cut joints, where the completed surface will be covered by HMA mix, with a coulter wheel, saw, cold-milling machine, or other method approved by the Engineer.

5. Cold-Milling HMA Surfaces. Before milling existing pavement, obtain a Department-approved mix design in accordance with subsection 501.02.A, and ensure the availability of HMA mix quantites to cover milled surfaces.

Remove the HMA surface to the depth, width, grade, and cross section shown on the plans. Backfill and compact depressions resulting from removal of material below the specified grade, in accordance with subsection 501.03.C.9.

If the milling machine discovers buried structures within the specified grade, such as valve boxes, manholes, or railroad tracks that are not identified on the plans, the Department will pay for all associated costs, as extra work, in accordance with subsection 103.02.

Immediately after cold-milling, clean the surface. Dispose of removed material in accordance with subsection 104.07.D and subsection 204.03.

6. Removing HMA Surface. Except as specified in subsection 501.03.C.4, removing HMA surface applies to removing HMA overlying a base course that is to remain in place.

Cut joints, exposed in the completed surface, with a saw or cold-milling machine. Cut joints, covered by HMA mix, with a coulter wheel, saw, or cold-milling machine. Obtain the Engineer’s approval of alternate methods for cutting joints.

When removing HMA overlying a base course that is to remain in place, cut the edges of the surface requiring removal along straight lines for the full depth of the HMA surface.

When removing HMA by cold-milling, the Engineer may direct the Contractor to remove less than the full depth of HMA surface.

7. Removing HMA Patches. Remove patches that may compromise the performance of the overlay.

8. Joint and Crack Clean Out. If the plans show joint and crack clean out, use mechanical or hand methods to remove joint sealants to at least 1 inch deep.