Attachment_1_NFSR601_Supplemental_Specifications_-_Final.pdf

SUPPLEMENTAL PROJECT SPECIFICATIONS

FOR

NATIONAL FORESTS IN ALABAMA

TALLADEGA RANGER DISTRICT

NFSR 601 MP 5.3 CULVERT REPLACEMENT

Table of Contents Preface

101 - Terms¸ Format¸ and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

103 - Scope of Work

104 - Control of Work

104.03 Specifications and Drawings

104.06 Use of Roads by Contractor

105 - Control of Material

105.02 Material Sources

105.02(c) Contractor-located sources

105.05 Use of Material Found in the Work

106 - Acceptance of Work

106.01 Conformity with Contract Requirements

106.07 Partial and Final Acceptance

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims

107.06 Contractor’s Responsibility for Work

107.08 Sanitation, Health, and Safety

107.09 Legal Relationship of the Parties

107.10 Environmental Protection

108 - Prosecution and Progress

108 Prosecution and Progress

109 - Measurement and Payment

109 Deletions

109.02 Measurement Terms and Definitions

152 - Construction Survey and Staking

152.04 General

152.04(c) Material

152.05 Survey and Staking Requirements

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

Table 152-2 Cross section and slope stake tolerances

153 - Contractor Quality Control

153.03 Quality Control Plan

154 - Contractor Sampling and Testing

154.01 Description

155 - Schedules for Construction Contracts

Delete

156 - Public Traffic

157 - Soil Erosion Control

157.03 General

170 - Develop Water Supply and Watering

171 - Weed and Disease Prevention

201 - Clearing and Grubbing

201.01 Description

201.02 Material:

203 - Removal of Structures and Obstructions

203.01 Description

203.02 Material

203.04 Removing Material

203.05 Disposing of Material

204 - Excavation and Embankment

204.05 Conserved Topsoil

204.06 Roadway Excavation

204.10 Embankment Construction

204.11 Compaction

204.13 Sloping, Shaping, and Finishing

Table 204-2 Construction tolerances

204.14 Disposal of Unsuitable or Excess Material

204.15 Acceptance

Table 204-1 Sampling and Testing Requirements

208 - Structure Excavation and Backfill for Selected Major Structures

208.01 Description

208.08 Foundation Preparation

208.10 Compacting

208.11 Acceptance

208.12 Measurement

251 - Riprap

251.03 General

301 - Untreated Aggregate Courses

301 Title Change

301.01 Work

301.02 Material

301.03 General

301.05 Compacting

301.06 Surface Tolerance

301.08(b) Plasticity Index

Table 301-1—Acceptance Sampling and Testing Requirements

Table 301-1 Field Density Requirements

301.09 Measurement

552 - Structural Concrete

554 - Reinforcing Steel

617 - Guardrail

617.02

617.04 Posts Installation

617.05 Rail Element Installation

617.06 Terminal Sections

633 - Permanent Traffic Control

633.02 Material

633.03 General

633.05 Panels

635 - Temporary Traffic Control

635.03 General

704 - Soil

704.02 Bedding Material

705 - Rock

705.02 Riprap Rock

707 – Metal Pipe

707.06 Aluminum-Alloy Structural Plate Structures

712 - Joint Material

712.01 Sealants, Fillers, Seals, and Sleeves

713 - Roadside Improvement Material

713.05 Mulch

714 - Geotextile and Geocomposite Drain Material

Tables 714-1 and 714-4

714.03 Geogrids

Table 714-7—Physical strength requirements for geogrids

725 - Miscellaneous Material

725.02 Calcium Chloride, Magnesium Chloride and Lignosulfonate

725.04 Pozzolans

725.13 Grout

725.18 Epoxy Resin Adhesives

Preface

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-14 for construction of National Forest System Roads.

Federal Highway Administration Standard Specifications are included in this solicitation by reference. They are binding on the parties signing the contract and become a part of the contract.

Specifications that are referenced by other specifications are not listed below but are still applicable. Any specifications referenced by the supplemental specifications shall be applicable to this contract.

The full version of FP-14 is available at the following link:

http://flh.fhwa.dot.gov/resources/specs/

A copy will be provided to the successful bidder.

101 - Terms¸ Format¸ and Definitions

Add the following:

101.01 Meaning of Terms

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

101.03 Abbreviations.

Add the following to (a) Acronyms:

AGAR — Agriculture Acquisition Regulations AFPA — American Forest and Paper Association FSAR — Forest Service Acquisition Regulations MSHA — Mine Safety and Health Administration NESC — National Electrical Safety Code WCLIB — West Coast Lumber Inspection Bureau

Add the following to (b) U.S. Customary unit abbreviations and symbols:

MP — milepost location

Ppm — parts per million volume http://flh.fhwa.dot.gov/resources/specs/

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule — The Schedule of Items.

Bridge — A structure, including supports, erected over a depression or an obstruction such as water along a road, a trail, or a railway and having a deck for carrying traffic or other loads

(FSM 7720.5).

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”.

Contract Modification (Public Works Contract) — Any written change in the terms of the contract.

Contract modifications are of the following forms:

(a) Administrative change. A unilateral contract change, in writing, that does not affect the substantive rights of the parties (e.g., a change in the paying office or the appropriation data).

(b) Change order. A written order, signed by the CO, directing the Contractor to make a change that FAR Clause 52.243-4 Changes or 52.243-5 Changes and Changed Conditions authorizes the CO to order without the Contractor's consent.

(c) Supplemental agreement. A contract modification that is accomplished by the mutual action of the parties.

Contract Modification — The contract can be modified only by the written agreement of the parties except in specific cases such as rate determinations or environmental modifications.

Culvert — Any structure with a bottom, regardless of fill depth, depth of invert burial, or presence of horizontal driving surface, or any bottomless (natural channel) structure with footings that will not have wheel loads in direct contact with the top of the structure (FSM 7720.5).

Day — A calendar day beginning and ending at midnight (for Public Works contracts only).

Notice to Proceed — Written notice to the Contractor to begin the contract work (for Public Works contracts only).

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.

Solicitation — The complete assembly of documents (whether attached or incorporated by reference) furnished to prospective bidders (for Public Works contracts only).

Add the following:

Adjustment in Contract Price — Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change — Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Design Quantity — Design quantity” is a Forest Service method of measurement from the FS- 96 Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.

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

Department of Agriculture.

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

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

Purchaser — The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

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

Road Order — An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

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

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

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

Figure 101-1—Illustration of road structure terms.

103 - Scope of Work Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

Delete subsections 104.01, 104.02, and 104.04.

104.03 Specifications and Drawings.

Delete subsection 104.03.

Add the following subsection:

104.06 Use of Roads by Contractor

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

105 - Control of Material

105.02 Material Sources.

105.02(c) Contractor-located sources.

All material (e.g., soil, gravel, sand, borrow, aggregate, etc.) transported onto National Forest System land or incorporated into the work will be weed-free. The Contracting Officer may request written documentation of methods used to determine the weed-free status of any and all materials furnished by the contractor. Contractor-provided expertise and methods to establish weed-free status must be appropriate for the weeds of concern in the local area.

105.05 Use of Material Found in the Work.

Delete 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.

Delete 105.05 (a) and (b)

106 - Acceptance of Work

106.01 Conformity with Contract Requirements.

Delete Subsection 106.01 and substitute the following:

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 stricter.

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 Partial and Final Acceptance

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims.

Delete subsection 107.05.

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“Except as provided in Subsection 106.07”.

107.08 Sanitation, Health, and Safety.

Perform all operations in a prudent, conscientious, safe and professional manner. Ensure that all personnel involved in handling and packaging the hazardous waste are trained for the level of expertise required for the proper performance of the task and, in particular, in the areas of chemical incompatibility, general first aid procedures, and spills. Provide handling and personal protective equipment appropriate to ensure safe handling of the hazardous waste according to 29 CFR 1910.120). Notify the Forest Service of all hazardous material that may be brought onto the National Forest.

107.09 Legal Relationship of the Parties.

Delete the entire subsection.

107.10 Environmental Protection.

Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.

Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

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

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

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

• Containment procedures.

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

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

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

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

108 - Prosecution and Progress

108 Prosecution and Progress.

Delete Section 108.

109 - Measurement and Payment

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 Measurement Terms and Definitions.

(b) Contract quantity.

Add the following:

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

(p) Thousand Board Feet Measure (MBFM).

Add the following:

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

152.04 General.

Add the following:

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

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

152.04(c) Material.

Add the following:

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

Do not use aerosol spray paints.

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

152.05 Survey and Staking Requirements.

(b) Centerline Establishment Replace the first two sentences with the following:

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

(d) Slope & References Stakes:

Replace section with the following:

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

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

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

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

Use the designated method to establish the slope stake catchpoint.

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

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

(e) Clearing and grubbing limits.

Add the following:

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

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

(g) Culverts.

Replace subsection with the following:

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

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

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

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

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

(l) Miscellaneous Survey and Staking.

Add the following:

(11) Cattleguards

(12) Drain Dips

(13) Erosion Control Measures

Replace Table 152-1 with the following two tables:

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

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

Precision

Class

Minimum Position Closure Angular Accuracy (±)

L-Line Tangent Control Pointsa

Vertical Closureb

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.

153 - Contractor Quality Control

153.03 Quality Control Plan.

Add the following:

Submit written proposals for approval of alternate AASHTO or State approved test methods.

Alternate methods may be allowed based on documented equivalence to the specified method.

154 - Contractor Sampling and Testing

154.01 Description

Delete the last sentence of the first paragraph.

155 - Schedules for Construction Contracts

Delete.

Delete Section 155.

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

Description

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

Material

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

Construction sign panels 633

Retro-reflective sheeting 718.01

Temporary concrete barrier 618

Temporary plastic fence 710.11

Temporary traffic control devices 718.22

156.03 General. Unless otherwise provided for in Table 156-1, keep existing roads open to all traffic during road improvement work, and maintain them in a condition that will adequately accommodate traffic.

Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved. Post construction signs and traffic control devices in conformance with MUTCD. All required signs will be in place and approved prior to beginning work on project.

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

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

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

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

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

(d) Relocate temporary traffic control devices as necessary.

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

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

(g) Keep temporary traffic control devices clean.

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

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

Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.

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

Prior to closing roads during construction, give written notice to the Contracting Officer at least 10 days in advance. Do not construct detours outside of the clearing limits or use alternate route detours without the approval of the CO.

Table 156-1

Temporary Road Closures

Road Number From Terminus

To Terminus Maximum Consecutive

Days of Closure

Minimum Consecutive Days Open

601 601 Junction with 607

601 Junction with 601 B

90 Days

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 under item 151 Mobilization.

157 - Soil Erosion Control

157.03 General

Delete the entire subsection and replace with the following:

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

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

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

170 - Develop Water Supply and Watering

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

Materials

170.02 Conform to the following subsection.

Water 725.01.

Construction Requirements

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

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

170.05 Application. Apply water uniformly without ponding or washing.

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

Measurement

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

Payment

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

171 - Weed and Disease Prevention

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

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. Give 48 hour advance notice to COR to schedule inspection and acceptance.

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

Measurement

171.08 Do not measure weed prevention for payment?

Payment

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

201 - Clearing and Grubbing

201.01 Description

Replace with the following

This work consists of clearing and grubbing within clearing limits and other designated areas.

201.02 Material:

Delete Tree wound dressing material reference.

201.03 General.

Delete the last sentence.

201.04 Clearing.

Delete the last sentence of (d).

203 - Removal of Structures and Obstructions

203.01 Description.

Delete and replace with the following:

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

203.02 Material.

Geotextile 714

203.04 Removing Material.

(b) General Replace the fifth and seventh paragraphs with the following:

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

Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation.

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

203.05 Disposing of Material.

Add the following:

(e) Scattering. Scatter pieces of wood less than 3 inches in diameter and 3 feet in length within the clearing limits. Do not place construction slash in lakes, meadows, streams, or streambeds.

Immediately remove construction slash that interferes with drainage structures.

204 - Excavation and Embankment

204.05 Conserved Topsoil.

Delete the subsection:

204.06 Roadway Excavation

Add the following:

Retrieve material deposited outside of the clearing limits as directed by the CO. Place unsuitable material in designated areas.

204.10 Embankment Construction.

Add the following:

Obtain written approval before beginning construction of embankments over 6 feet high at subgrade centerline.

(a) General.

Delete the third paragraph and add the following:

Compact embankment side slopes flatter than 1V:1.75H with a tamping type roller or by walking with a dozer. For slopes 1V:1.75H or steeper, compact the slopes as construction of the embankment progresses.

204.11 Compaction.

Delete the first paragraph and replace it with the following:

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

Add the following compaction methods:

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

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

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. For surfaced roads, remove all material larger than 6 inches from the top 6 inches of the roadbed. For all roads, finish the roadbed to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material. Finish roadbeds to the tolerance class shown in table 204-2.

Ensure that the subgrade for both surfaced and unsurfaced roads is visibly moist during shaping and dressing. Scarify to 6 inches below the bottom of low sections, holes, cracks, or depressions and bring back to grade with suitable material. Maintain proper ditch drainage.

For unsurfaced roads, use one of the following methods to finish the roadbed:

(1) Method A. Remove all material larger than 6 inches from the top 6 inches of the roadbed and replace with suitable material.

(2) Method B. Use a vibratory grid roller or approved equal with a minimum weight of 10 tons. Roll at least 5 full-width passes or until visible displacement ceases.

(3) Method C. For roads designated as Construction Tolerance Class K, L, or M, finish the roadbed by spreading the excavation. Eliminate rock berms.

Add Table 204-2—Construction Tolerances:

Table 204-2 Construction tolerances.

Tolerance Class(a)

A B C D E F G H I J K L M Roadbed width (ft.) +0.5 +0.5 +1.0 +1.0 +1.0 +1.0 +1.5 +1.0 +2.0 +2.0 +2.0 +2.0 +2.0

Subgrade elevation

(ft.)

+0.1 +0.2 +0.2 +0.5 +0.5 +1.0 +1.0 +1.5 +2.0 +3.0 +2.0 +3.0 (c)

Centerline alignment (ft.)

+0.2 +0.2 +0.5 +0.5 +1.0 +1.0 `+1.5 +1.5 +2.0 +3.0 +3.0 +5.0 (c)

Slopes, excavation, and embankment (% slope(b)

+3 +5 +5 +5 +5 +5 +10 +10 +10 +10 +20 +20 +20

a. Maximum allowable deviation from construction stakes and drawings.

b. Maximum allowable deviation from staked slope measured from slope stakes or hinge points.

c. Unless otherwise shown the centerline alignment and subgrade elevation, as built, have no horizontal curves with a radius of less than 80 feet, and no vertical curves with a curve length of less than 80 feet when the algebraic difference in the grade change is less than 10 percent, or a curve length of less than 100 feet when the algebraic difference of the grade change is greater than or equal to 10 percent. The centerline grade is not to exceed 20 percent in 100 feet of length.

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 National Forests Lands.

204.15 Acceptance

Table 204-1 Sampling and Testing Requirements.

Add the following note to the table:

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

208 - Structure Excavation and Backfill for Selected Major Structures

208.01 Description

Payment under this lump sum pay item includes the cost to construct the bridge approaches to the lines and grades AS SHOWN ON THE DRAWINGS. Structural backfill shall be obtained from utilizing suitable excavation from the bridge construction. Payment under this lump sum item also includes the cost to incorporate the excess material from excavation for the placement of riprap in Section 251.

208.08 Foundation Preparation.

Add the following after the first paragraph:

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

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

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

208.10 Compacting.

Do not apply density requirements as measured by AASHTO T 310 to material that contains rocks and therefore is incapable of being tested or compacted to maximum values determined by AASHTO T 99. For these materials, fill the voids around the rock in each layer with earth or other fine material. Compact each layer, full width, until there is no visible evidence of further consolidation.

Do not place rock that is greater than 6 inches in its largest dimension within any backfill or embankment that is within 3 feet of any structure.

208.11 Acceptance.

208-01 Sampling and Testing Requirements.

Add the following notes to the table:

(2) Structural backfill AASHTO T 27 & T11 (gradation) and AASHTO T89 (liquid limit) test methods are not required.

(3) For structural backfill compaction, AASHTO T310, change the sampling frequency to 3 per abutment.

208.12 Measurement.

Add the following to the second paragraph:

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

Add the following paragraph:

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

251 - Riprap

251.03 General.

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

251.08 Measurement.

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

301 - Untreated Aggregate Courses

301 Title Change.

Change the title to: Section 301 Aggregate Course

301.01 Work.

Replace the last sentence of second paragraph with the following:

Surface course aggregate grading is designated in ALDOT Standard Specifications for Highway Construction, 2012 Edition, Section 825.03. All other aggregate courses are specified in ALDOT Standard Specification for Highway Construction, 2012 Edition, Section 801.

Add the following:

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

301.02 Material.

Bentonite 725.30 Calcium Chloride Flake 725.02 Lignon Sulfonate 725.20

Magnesium Chloride Brine or Calcium Chloride Liquid 725.02

301.03 General.

Written approval of the roadbed is required before placing aggregate. Notify COR at least 48 hours in advance of placement to secure roadbed approval.

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

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

Develop and use Government furnished sources according to Section 105.

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

301.05 Compacting

Delete and replace with the following:

Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Along curbs, headers, walls, and all places not accessible to the roller, compact the material with approved tampers or compactors.

Compact 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 during 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.

301.06 Surface Tolerance.

Thickness and Width requirements:

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 +12 inches at any point. The compacted width is not consistently above the specified width and the average of any four random measurements along any ½ mile of road segment is within +4 inches of the specified width.

301.08(b) Plasticity Index.

Add the following to the first sentence:

“and under 703.05(c)(1)”.

Table 301-1: Add the following:

Table 301-1—Acceptance Sampling and Testing Requirements.

Material or

Product Type of

Acceptance (Subsection)

Characteristic Category Test Methods Specification s

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Subbase & Base Courses L, M, N, O, P, Q, R

Measured and tested conformance

(Subsection 106.04)

Plastic Limit - AASHTO T 90 1 per each 1,000 T

From the windrow or roadbed after processing

Yes 4 Hours

Table 301-1—Acceptance Sampling and Testing Requirements.

Material or Product

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Aggregate Width Measured and tested conformance

(Subsection 106.04)

Width - - 4 per each 0.5 mi

Roadbed after processing

- 4 Hours

Aggregate Thickness

Measured and tested conformance

(Subsection 106.04)

Thickness - - 4 per each 0.5 mi

Roadbed after processing

- 4 Hours

Additive Measured and tested conformance

(Subsection 106.04)

Amount of Additive - 1 per each 1,000 T

From the windrow or roadbed after processing

No 4 Hours

Table 301-1 Field Density Requirements.

Table 301-1: Delete laboratory and field density requirements for base, subbase, and surfacing and replace with the following:

Material or Product

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Base and Subbase

Measured and tested conformance (Subsection 106.04)

Moisture Density ---

Method C --- AASHTO T 99 1 per type and source of material

Source of material

Yes Before using in work

Method D --- AASHTO T 180 “ “ “ “

Compaction ---

Method C, D --- AASHTO T 310 or other approved procedures

1 per 500 t In-place --- Before placing the next layer

Surfacing Measured and tested conformance (Subsection 106.04)

Moisture Density

--- “ “ “ Before using in work

Method D --- AASHTO T 180 “ “ “ “

Compaction

Method C, D --- AASHTO T 310 or other approved procedures

1 per 500 t In-place --- Before placing the next layer

301.09 Measurement.

When payment is by contract quantity, measure aggregate by cubic yard compacted in place.

552 - Structural Concrete Material

552.02 Add the following:

Anchor bolts 717.01 Dowels 717.17

Epoxy resin adhesives 725.21 High strength non-shrink grout 701.02 Mortar 701.02 Portland cement 701.01 Sealants, fillers, seal, and sleeves 712.01

552.03 Composition (Concrete Mix Design).

Delete Tables 552-1, 2, and 3 and replace with the following:

Table 552-1 Composition of Concrete

Class of Concrete

Minimum Cement Content

(pound per cubic yard)

Maximum W/C Ratio

Slump (1) (inches)

Maximum Nominal Coarse

Aggregate Size (5)

(inches) A 611 0.49 2 to 4 1½

A(AE) 611 0.44 1 to 4 1½ B 517 0.58 2 to 4 2½

B(AE) 517 0.58 2 to 4 2½ C 658 0.49 2 to 4 ¾

C(AE) 658 0.44 1 to 3 ¾ D(AE)(2) 611 0.40 1 to 3 1½ E(AE)(3) 611 0.40 4 to 6 (4) ¾

P (Prestressed) 658 0.44 0 to 4 1

P(AE) 658 0.44 0 to 4 1 Seal 658 0.54 4 to 8 1½

(1) Maximum slump is 8 inches if approved mix design includes a high-range water reducer.

(2) Concrete with a water reducing and retarding admixture conforming to AASHTO M 194, type D.

(3) A latex modified concrete with 0.037 gallons of modifier per pound of cement.

(4) Measure the slump 4 to 5 minutes after the concrete is discharged from the mixer.

(5) Meeting the processing requirements of AASHTO M43, Table 1 – Standard Sizes of Processed Aggregate.

(6) Use Class P (AE) concrete in the entire depth of the top flange of all multi-beam bridge girders. In lieu of this, Class P (AE) concrete may be used for fabrication of the entire girder, and throughout the entire depth of prestressed slabs.