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Supplemental Specifications April 12, 2010
SECTION C – FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS
The U.S. Department of Transportation, Federal Highway Administration, Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-03, U.S. Customary Units and its revisions are included by reference only. Also applicable, but not listed, is any other section or subsection of the included Specification(s) or any specific standard or specification referenced therein. The requirements contained in these specifications are hereby made a part of this Solicitation for Bid and any resulting contract.
A copy of the U.S. Department of Transportation, Federal Highway Administration, Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-03, U.S. Customary Units can be obtained from the Forest Service office in Rutland, VT upon request or at the following locations:
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
They can also be downloaded directly at the following website:
http://flh.fhwa.dot.gov/resources/pse/specs/ The following Forest Service Supplemental Specifications are revisions to the Standard Specifications that incorporate specification changes or additions that are specific requirements and unique to this particular project. The specifications are herein modified as follows.
Table of Contents
1Table of Contents
Preface 101 - Terms, Format, and Definitions
101.01 Meaning of Terms
101.03 Abbreviations.
101.04 Definitions.
102 - Bid, Award, and Execution of Contract 102 Bid, Award, and Execution of Contract 103 - Scope of Work Deletions 104 - Control of Work Deletions
104.06 Use of Roads by Contractor
105 - Control of Material
105.02 Material Sources.
105.02(a) Government-provided sources.
105.05 Use of Material Found in the Work.
106 - Acceptance of Work
106.07 Delete
107 - Legal Relations and Responsibility to the Public
107.05 Responsibility for Damage Claims.
107.06 Contractor’s Responsibility for Work.
107.09 Legal Relationship of the Parties.
107.10 Environmental Protection.
108 - Prosecution and Progress 108 Delete.
109 - Measurement and Payment 109 Deletions
109.02 Measurement Terms and Definitions.
151 - Mobilization 155 - Schedules for Construction Contracts 155 Delete.
157 - Soil Erosion Control
157.03 General
171 - Weed and Disease Prevention 203 - Removal of Structures and Obstructions
203.01 Description.
203.02 Material.
203.04 Removing Material.
203.05 Disposing of Material.
203.05 Disposing of Material.
204 - Excavation and Embankment
204.06 Roadway Excavation.
204.09 Preparing Foundation for Embankment Construction.
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.
251 - Riprap
251.03 General.
322 - Minor Aggregate Courses 718 - Traffic Signing and Marking Material
718.05 Aluminum Panels
Preface
Preface_wo_03_15_2004_m Delete all but the first paragraph and add the following:
The Forest Service, US Department of Agriculture has adopted FP-03 for construction of National Forest System Roads.
101 - Terms, Format, and Definitions
101.00_nat_us_07_25_2005 101.01_nat_us_01_22_2009
101.01 Meaning of Terms
Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.
101.03_nat_us_06_16_2006
101.03 Abbreviations.
Add the following to (a) Acronyms:
AFPA
MSHA
NIST
NESC
WCLIB
American Forest and Paper Association Mine Safety and Health Administration National Institute of Standards and Technology National Electrical Safety Code West Coast Lumber Inspection Bureau
Add the following to (b) SI symbols:
| mp |
| Milepost |
| ppm |
| Part Per Million |
101.04_nat_us_03_29_2007
101.04 Definitions.
Delete the following definitions and substitute the following:
Bid Schedule--The Schedule of Items.
Bridge--No definition.
Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.
Culvert--No definition.
Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.
Add the following:
Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.
Change--“Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.
Design Quantity--“Design quantity” is a Forest Service method of measurement from the FS-96 Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.
Forest Service--The United States of America, acting through the Forest Service, U.S. Department of Agriculture.
Neat Line--A line defining the proposed or specified limits of an excavation or structure.
Pioneer Road--Temporary construction access built along the route of the project.
Purchaser--The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.
Protected Streamcourse--A drainage shown on the plans or timber sale area map that requires designated mitigation measures.
Road Order--An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.
Schedule of Items--A schedule in the contract that contains a listing and description of construction items, quantities, units of measure, unit price, and amount.
Utilization Standards--The minimum size and percent soundness of trees described in the specifications to determine merchantable timber.
Add Figure 101-1—Illustration of road structure terms:
Figure 101-1—Illustration of road structure terms.
102 - Bid, Award, and Execution of Contract
102.00_nat_us_02_16_2005
102 Bid, Award, and Execution of Contract Delete Section 102 in its entirety.
103 - Scope of Work
103.00_nat_us_02_16_2005
Deletions Delete all but subsection 103.01 Intent of Contract.
104 - Control of Work
104.00_nat_us_06_16_2006
Deletions Delete Sections 104.01, 104.02, and 104.04.
104.06_nat_us_02_17_2005
Add the following subsection:
104.06 Use of Roads by Contractor
The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.
105 - Control of Material
105.02_nat_us_01_18_2007
105.02 Material Sources.
105.02(a) Government-provided sources.
Add the following:
Comply with the requirements of 30 CFR 56, subparts B and H. Use all suitable material for aggregate regardless of size unless otherwise designated. When required, re-establish vegetation in disturbed areas according to section 625.
105.05_nat_us_05_12_2004
105.05 Use of Material Found in the Work.
Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:
Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.
106 - Acceptance of Work
106.07_nat_us_05_11_2004
106.07 Delete
Delete subsection 106.07.
107 - Legal Relations and Responsibility to the Public
107.05_nat_us_05_11_2004
107.05 Responsibility for Damage Claims.
Delete the entire subsection.
107.06_nat_us_06_16_2006
107.06 Contractor’s Responsibility for Work.
Delete the following from the first paragraph.
“except as provided in Subsection 106.07”.
107.09_nat_us_06_16_2006
107.09 Legal Relationship of the Parties.
Delete the entire subsection.
107.10_nat_us_06_16_2006
107.10 Environmental Protection.
Add the following:
Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.
Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:
· Description of the item spilled (including identity, quantity, manifest number, and other identifying information).
· Whether amount spilled is EPA or state reportable, and if so whether it was reported, and to whom.
· Exact time and location of spill including a description of the area involved.
· Containment procedures.
· Summary of any communications the Contractor had with news media, Federal, state and local regulatory agencies and officials, or Forest Service officials.
· Description of clean-up procedures employed or to be employed at the site including final disposition and disposal location of spill residue.
When available provide copies of all spill related clean up and closure documentation and correspondence from regulatory agencies.
The Contractor is solely responsible for all spills or leaks that occur during the performance of this contract. Clean up spills or leaks to the satisfaction of the CO and in a manner that complies with Federal, state, and local laws and regulations.
108 - Prosecution and Progress
108.00_nat_us_02_16_2005
108 Delete.
Delete Section 108 in its entirety.
109 - Measurement and Payment
109.00_nat_us_02_17_2005
109 Deletions
Delete the following entire subsections:
109.06 Pricing of Adjustments.
109.07 Eliminated Work.
109.08 Progress Payments.
109.09 Final Payment.
109.02_nat_us_06_16_2006
109.02 Measurement Terms and Definitions.
(b) Contract quantity.
Add the following:
Contract quantities will be adjusted only when there are errors in the original design of 15% or more.
Change the following:
“(b) Cubic yard” to “(c) Cubic yard”.
Add the following definition:
(p) Thousand Board Feet (Mbf). 1,000 board feet based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminated timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.
155 - Schedules for Construction Contracts
155.00_nat_us_05_11_2004
155 Delete.
Delete Section 155 in its entirety.
157 - Soil Erosion Control
157.03_nat_us_02_24_2005
157.03 General
Delete the entire subsection and replace with the following:
Prior to the start of construction, submit a written plan that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control. An alternate erosion control plan with all necessary permits may be submitted 30 days before intended use.
Incorporate all permanent erosion control features into the project at the earliest practicable time, as outlined in the approved plan.
When erosion control measures are not functioning as intended, immediately take corrective action.
171 - Weed and Disease Prevention
171.00_nat_us_03_30_2005
Description
171.01 This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before the equipment is used on National Forest System lands.
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.
203 - Removal of Structures and Obstructions
203.01_nat_us_02_25_2005
203.01 Description.
Delete and replace with the following:
This work consists of disposing of construction slash and debris, salvaging, removing, and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.
203.02_nat_us_02_18_2005
203.02 Material.
Add the following:
Geotextile
203.04_nat_us_02_18_2005
203.04 Removing Material.
Replace the fourth and fifth paragraphs with the following:
Where part of an existing culvert is removed, remove the entire culvert upstream from the removal. The remaining downstream culvert may be left in place if no portion of the culvert is within 12 inches of the subgrade, embankment slope, or new culvert or structure; and the culvert ends are sealed with concrete.
Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation. Remove structures and obstructions outside the roadbed to 12 inches below finished ground or to the natural stream bottom.
203.05_nat_us_02_18_2005
203.05 Disposing of Material.
Add the following:
(e) Windrowing Construction Slash. Place construction slash outside the roadway in neat, compacted windrows approximately parallel to and along the toeline of embankment slopes. Do not permit the top of the windrows to extend above subgrade. Use construction equipment to matt down all material in a windrow to form a compact and uniform pile. Construct breaks of at least 15 feet at least every 200 feet in a windrow. Do not place windrows against trees. Obtain approval for pioneer roads. A pioneer road may be constructed to provide an area for placement of windrows, provided the excavated material is kept within the clearing limits and does not adversely affect the road construction.
(f) Scattering. Scatter construction slash outside the clearing limits without damaging trees. Limb all logs. Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Limb and scatter other construction slash to reduce slash concentrations.
(g) Chipping or Grinding. Use an approved chipping machine to grind slash and stumps greater than 3 inches in diameter and longer than 3 feet. Deposit chips or ground woody material on embankment slopes or outside the roadway to a loose depth less than 6 inches. Minor amounts of chips or ground woody material may be permitted within the roadway if they are thoroughly mixed with soil and do not form a layer.
(h) Debris Mat. Use tree limbs, tops, cull logs, split stumps, wood chunks, and other debris to form a mat upon which construction equipment is operated. Place stumps upside down and blend stumps into the mat.
(i) Decking Firewood Material. Remove brush from decks. Limb and deck logs that do not meet Utilization Standards according to Subsection 201.04 as directed by the CO. Cut logs to lengths less than 30 feet. Ensure that logs stacks are stable and free of brush and soil.
(j) Removal to designated locations. Remove construction slash to designated locations.
(k) Piling. Pile construction slash in designated areas. Place and construct piles so that if the piles are burned, the burning will not damage remaining trees. Keep piles free of dirt from stumps. Cut unmerchantable logs into lengths of less than 20 feet.
(l) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. Do not place slash closer than 2 feet below subgrade. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets.
(m) Hydrological Sensitive Placement. Where required use this method in combination with other designated methods to dispose of material to reduce erosion and to aid in re-vegetation:
1. Place windrow segments on contours, wrap in type I geotextile.
2. Place logs as log erosion barriers on contours. Place logs so that 80% of their length is on the ground surface.
3. Scatter slash on bare or disturbed areas within or outside the clearing limits as directed.
4. Scatter chips or ground woody material on bare or disturbed areas within or outside the clearing limits as directed.
Place stumps in swales or on sites to form planting pockets. Place windrow segments on contours, wrap in type I geotextile.
203.05_nat_us_02_24_2005
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
204.06_nat_us_03_02_2005
204.06 Roadway Excavation
(a) General.
Add the following:
Retrieve material deposited outside of the clearing limits as directed by the CO. Place unsuitable material in designated areas.
204.06_nat_us_03_02_2005
204.06 Roadway Excavation.
Add the following:
d) Pioneer Roads. Road pioneering, slash disposal, and grubbing of stumps may proceed concurrently with excavation. Conduct excavation and placement operations so material to be treated under Section 201 will not be incorporated into the roadway unless specified in the slash treatment method. Maintain drainage during pioneering operations.
Remove snow and ice in advance of the work and deposit beyond the roadway limits in a manner that will not waste material or generate sediment. Do not incorporate snow and ice into embankments. Place snow or ice in a manner to prevent resource damage.
204.09_nat_us_03_02_2005
204.09 Preparing Foundation for Embankment Construction.
Delete subsection (a) and replace it with the following:
(a) Embankment less than 4 feet high over natural ground. When designated, remove topsoil and break up the ground surface to a minimum depth of 6 inches by plowing or scarifying. Compact the ground surface according to Subsection 204.11.
204.10_nat_us_03_02_2005
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_nat_us_04_11_2005
204.11 Compaction.
Delete the first paragraph and replace it with the following:
For compaction according to method (a), (b), or (c), use AASHTO T 27 to determine the amount of material retained on a Number. 4 sieve. For compaction methods (d) or (e) no sieve test is required.
Add the following compaction methods:
(d) Layer Placement Method (Hauling and Spreading Equipment). Place material by end dumping to the minimum depth needed for operation of spreading equipment. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer. Construct a solid embankment with adequate compaction by working smaller rock and fines in with the larger rocks to fill the voids, and by operating hauling and spreading equipment uniformly over the full width of each layer as the embankment is constructed.
(e) Layer Placement (Roller Compaction) Method. Place material by end dumping to the minimum depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases or, in when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes.
204.13_nat_us_03_02_2005
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_nat_us_03_02_2005
204.14 Disposal of Unsuitable or Excess Material.
Delete the text of the first paragraph and substitute the following:
Dispose of unsuitable or excess material at designated sites or legally off of the project.
204.15_nat_us_02_07_2007
204.15 Acceptance
Table 204-1 Sampling and Testing Requirements.
Add the following note to the table:
(2) When compaction methods (d) or (e) are used AASHTO M 145, T 99, T 180, and T 310 are not required for earth embankment test methods.
251 - Riprap
251.03_nat_us_08_05_2009
Construction Requirements
251.03 General.
Add the following:
Place riprap under or adjacent to structures before placing prefabricated superstructure units or constructing superstructure false work unless otherwise approved by the CO.
251.08 Measurement.
Add the following:
Payment for excavation and embankment required for placement of riprap is indirectly included in the pay item for riprap.
322 - Minor Aggregate Courses
322.00_nat_us_10_24_2007 Description
322.01 This work consists of constructing one or more courses of aggregate on a prepared surface. Work includes producing aggregate by grid rolling, screening, or crushing methods, or placing pit-run or Government-furnished aggregate.
Surface aggregate grading is designated as shown in Table 703-3.
Subbase and base aggregate grading is designated as shown in Table 703-2.
Screened aggregate grading is designated as shown in Table 703-16.
Material
322.02 Conform to the following Subsections:
Aggregate
703.05
Water
725.01
Construction Requirements
322.03 General. Prepare the surface on which the aggregate course is placed according to Section 204 or 303 as applicable.
Request approval of the roadbed in writing before placing aggregate.
Develop, haul, and apply water in accordance to Section 170.
Submit target values within the gradation ranges shown in Table 703-2 or 703-3 for the required grading. After reviewing the proposed target values the CO will determine the final values for the gradation and notify the Contractor in writing.
No quality requirements or gradation other than maximum size will be required for pit run and grid-rolled material. For grid rolling, use all suitable material that can be reduced to maximum size.
After processing on the road, remove all oversize material from the road and dispose of it as directed by the CO.
If the aggregate is produced and stockpiled before placement, handle and stockpiled according to Section 320. Establish stockpile sites at approved locations.
322.04 Mixing and Spreading. Mix the aggregate and adjust the moisture content to obtain a uniform mixture with a moisture content suitable for the specified compaction method. Spread and shape the mixture on the prepared surface in a uniform layer with no segregation of size, and to a loose depth that will provide the required compacted thickness.
Do not place in layers exceeding 6 inches in compacted thickness for aggregate base and surface courses or twice the maximum particle size for screened aggregate. When more than one layer is necessary, compact each layer according to Subsection 322.05 before placing the next layer. Route hauling and leveling equipment uniformly over the full width.
When placing aggregate over geotextile, place aggregate in a single lift to the full depth specified.
322.05 Compacting. Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Along curbs, headers, walls, and all places not accessible to the roller, compact the material with approved tampers or compactors.
Compact the aggregate using one of the following methods as specified:
Compaction A. Operating spreading and hauling equipment over the full width of the travelway.
Compaction B. Operate rollers and compact as specified in Subsection 204.11(a)(1).
Compaction C. Moisten or dry the aggregate to a uniform moisture content between 5 and 7 percent based on total dry weight of the mixture. Operate rollers and compact as specified in Subsection 204.11(a)(1).
Compaction D. Compact to a density of at least 95 percent of the maximum density, as determined by AASHTO T 99, method C or D.
Compaction E. Compact to a density of at least 96 percent of the maximum density, as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, MT 59807).
Compaction F. Compact to a density of at least 95 per-cent of the maximum density, as determined by AASHTO T 180, method C or D.
Compaction G. Compact to a density of at least 100 percent of the maximum density as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, MT 59807).
For all compaction methods, blade the surface of each layer 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.
322.06 Construction Tolerance. If grade finishing stakes are required, finish the surface to within ±0.10 feet from staked line and grade elevation.
If grade finishing stakes are not required, shape the surface to the required template and check the surface with a 10-foot straightedge. Defective areas are surface deviations in excess of 1/2 inch in 10 feet between any two contacts of the straightedge with the surface.
Correct all defective areas by loosening the material, adding or removing material, reshaping, and compacting.
Ensure that the compacted thickness is not consistently above or below the specified thickness. The maximum variation from the compacted specified thickness is ½ inch.
Ensure that the compacted width is not consistently above the specified width. The maximum variation from the specified width will not exceed +12 inches at any point.
322.07 Maintenance. Maintain the aggregate course to the correct line, grade, and cross‑section by blading, watering, rolling, or any combination thereof until placement of the next course. Correct all defects according to Subsection 322.06.
322.08 Acceptance. See Table 322-1 or Table 322-2 as applicable, for sampling and testing requirements.
Aggregate gradation and surface course plasticity index will be evaluated under Subsection 106.04. If the aggregate is obtained from a Government stockpile then the above characteristics will be evaluated under Subsection 106.02. Other aggregate quality properties will be evaluated under Subsections 106.02 and 106.04. Placement of aggregate courses will be evaluated under Subsections 106.02 and 106.04.
The allowable upper and lower aggregate gradation limits are the Target Value plus or minus the allowable deviations shown in Tables 703-2 and 703-3.
The allowable upper and lower Plasticity index limits for surface courses are stated in 703.05(b).
Preparation of the surface on which the aggregate course is placed will be evaluated under Section 204 or 303 as applicable.
Measurement
322.09 Measure the Section 322 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.
Measure square yard width horizontally to include the top of aggregate width including designed widening. Measure the square yard length horizontally along the centerline of the roadway.
If the measurement for aggregate is by cubic yard using contract quantities then measure aggregate by the cubic yard in-place once compacted, otherwise measurement for aggregate by the cubic yard is measured by the cubic yard in the hauling vehicle.
Measure thickness perpendicular to the grade of the travelway.
Measure width perpendicular to the centerline.
Payment
322.10 The accepted quantities will be paid at the contract price per unit of measurement for the Section 322 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.
Table 322-1
Sampling and Testing Requirements
| Reporting Time |
| Before using |
in work
| “ |
| “ |
| “ |
| 48 hours |
Split
Sample
| Yes, when requested |
| “ |
| “ |
| “ |
| Yes |
| Point of Sampling |
| Source of |
material
| “ |
| “ |
| “ |
| From windrow or roadbed after processing or from approved crusher sampling device |
Sampling
Frequency 1 per type & source of material
| “ |
| “ |
| “ |
| 2 per day |
| Test Methods Specifications |
| AASHTO T 96 |
| AASHTO T 104 |
| AASHTO T 210 |
| ASTM D 5821 |
| AASHTO T 2 |
| Category |
| — |
| — |
| — |
| — |
| — |
| Characteristic |
| LA abrasion (coarse) |
| Sodium sulfate soundness loss (coarse & fine) |
| Durability index (coarse & fine) |
| Fractured faces |
| Sample |
| Type of Acceptance (Subsection) |
| Measured and tested |
for conformance
(106.04 & 105) Measured and tested for conformance
(106.04)
| Material or Product |
| Aggregate source quality |
703.05 Subbase, Base, and Surface courses
Table 322-1 (continued)
Sampling and Testing Requirements Reporting
Time
| Before using in work |
| “ |
| “ |
| “ |
| Before placing next layer |
| (1) Minimum of 5 points per proctor. |
Split
| Yes, when requested |
| “ |
| “ |
| “ |
| — |
| Point of Sampling |
| Source of material |
| “ |
| “ |
| “ |
| In-place |
Sampling
| 1 per type and source of material |
| “ |
| “ |
| “ |
| 3 per day |
| Test Methods Specifications |
| AASHTO T 99 (1) |
| R-1 Marshall |
| AASHTO T 180(1) |
| R-1 Marshall |
| AASHTO T 310 or other approved procedures |
| Category |
| — |
| — |
| — |
| — |
| — |
| Characteristic |
| Moisture-density Method D |
| Moisture-density Method E |
| Moisture-density Method F |
| Moisture-density Method G |
| In-place density & moisture content |
| Type of Acceptance (Subsection) |
| Measured and tested |
for conformance (106.04)
| Material or Product |
| Subbase, Base, and Surface |
Table 322-2
Sampling and Testing Requirements
| Reporting Time |
| 48 hours |
Split
Yes
| Point of Sampling |
| From windrow or roadbed after processing or from approved crusher sampling device |
Sampling
2 per day
| Test Methods Specifications |
| AASHTO T 2 |
| Category |
| — |
| Characteristic |
| Sample |
| Type of Acceptance (Subsection) |
| Measured and tested |
for conformance
(106.04 )
| Material or Product |
| Screened Aggregate |
718 - Traffic Signing and Marking Material
718.05_nat_us_08_05_2009
718.05 Aluminum Panels
Delete the third paragraph and replace with the following:
Clean, degrease and properly prepare the panels according to methods recommended by the sheeting manufacturer. Conversion coatings will conform to ASTM B-921 or ASTM B-449.
Leicester Hollow Trail Decom. & Stream Restoration
File details come from the government source that posted it. Updated .