Attachment__2__General_Specs.docx
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- Long Cane FSR 505 Bridge Replacement Federal contract opportunity
- Solicitation number
- 12467019R0096
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Attachment 2 General Specs
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| scan0003.pdf | ||
| scan0001.pdf | ||
| amendment.pdf | ||
| Attachment_3_Native_Seeding_Specs.pdf | ||
| r0096.docx | DOCX document | |
| Attachment__5_Experience_Questionnaire.docx | DOCX document | |
| Attachment_4_Drawings.pdf | ||
| Attachment_7_Map_for__Site_visist.pdf | ||
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| Attachmnet_6_Dol_WageRates.pdf |
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ATTACHMENT 2 USDOT Federal Highway Administration Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-14) is adopted for use on this project.
Table of Contents
| Preface | 3 |
| 101 - Terms¸ Format¸ and Definitions | 4 |
| 101.01 Meaning of Terms. | 4 |
| 101.03 Abbreviations. | 4 |
| 101.04 Definitions. | 5 |
| 102 - Bid¸ Award¸ and Execution of Contract | 8 |
| Delete Section 102. | 8 |
| Delete Subsections 103.02, 103.03, 103.04, 103.05. | 9 |
| 103 - Scope of Work | 10 |
| 104 - Control of Work | 10 |
| Delete Subsections 104.01, 104.02, 104.04. | 10 |
| 104.03 Specifications and Drawings. | 10 |
| 104.06 Use of Roads by Contractor. | 10 |
| 106 - Acceptance of Work | 11 |
| 106.01 Conformity with Contract Requirements. | 11 |
| 106.02 Visual Inspection. | 13 |
| 107 - Legal Relations and Responsibility to the Public | 14 |
| 107.02 Protection and Restoration of Property and Landscape. | 14 |
| Delete Subsection 107.05. | 14 |
| 108 - Prosecution and Progress | 15 |
| Delete Section 108. | 15 |
| 109 - Measurement and Payment | 16 |
| Delete Subsections 109.06, 109.07, 109.08, 109.09. | 16 |
| 109.02 Measurement Terms and Definitions. | 16 |
| 152 - Construction Survey and Staking | 17 |
| 152.04 General. | 17 |
| 152.05 Survey and Staking Requirements. | 17 |
| Table 152-1 Construction Survey and Staking Tolerances | 19 |
| 153 - Contractor Quality Control | 21 |
| 153.02 Qualifications. | 21 |
| 153.03 Quality Control Plan. | 21 |
| 153.07 Records and control charts. | 21 |
| 155 - Schedules for Construction Contracts | 22 |
| Delete Section 155. | 22 |
| 207 - Earthwork Geotextiles | 23 |
| 207.04(c)(1) First layer placement and compaction. | 23 |
| 208 - Structure Excavation and Backfill for Selected Major Structures | 24 |
| 208.07 Dewatering. | 24 |
| 209 - Structure Excavation and Backfill | 25 |
| 209.09 Backfill. | 25 |
| 209.10 Compacting. | 25 |
| 213 - Subgrade Stabilization | 29 |
| 213.05 General. | 29 |
| 302 - Minor Crushed Aggregate | 30 |
| 302.04 Placing Crushed Aggregate. | 30 |
| 303 - Road Reconditioning | 31 |
| 303.07 Roadway Reconditioning. | 31 |
| 314 - Stockpiled Aggregates | 32 |
| 314.01 Description. | 32 |
| 314.04 Stockpile Site. | 32 |
| 602 - Culverts and Drains | 33 |
| 602.05 Laying Metal Pipe. | 33 |
| 633 - Permanent Traffic Control | 34 |
| 633.02 Material. | 34 |
| 633.03 General. | 34 |
| 633.05 (a) Fabrication. | 34 |
Preface Preface_wo_07_18_2017
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.
101 - Terms¸ Format¸ and Definitions
101.01_National_11_9_2016 Add the following paragraph to Subsection 101.01:
101.01 Meaning of Terms.
Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.
101.03_National_11_9_2016 Add the following to Subsection 101.03:
101.03 Abbreviations.
(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
(f) Miscellaneous unit abbreviations.
| MP | — | milepost | location | ||
| ppm | — | parts per million | volume | ||
| STA | station | location |
101.04_National_11_9_2016 Make the following changes to Subsection 101.04:
101.04 Definitions.
Delete these definitions and replace 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.
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 — 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.
Drawings — (Public Works Contracts) Design sheets or fabrication, erection, or construction details submitted to the CO by the Contractor according to FAR Clause 52.236-21 Specifications and Drawings for Construction. Also refers to submissions and submittals.
Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work.
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—(Public Works Contracts) The complete assembly of documents (whether attached or incorporated by reference) furnished to prospective bidders.
Add the following definitions:
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.
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.
Shop Drawings — (Timber and Stewardship Contracts) Referred to as “Drawings” in FP-14, include drawings, diagrams, layouts, schematics, descriptive literature, illustrations, lists or tables, performance and test data, and similar materials furnished by Purchaser to explain in detail specific portions of the work required by the contract.
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_National_11_9_2016
Delete Section 102 in its entirety.
Delete Section 102.
103 - Scope of Work 103.00_National_11_9_2016 Delete all of Section 103 except Subsection 103.01 Intent of Contract.
Delete Subsections 103.02, 103.03, 103.04, 103.05.
104 - Control of Work 104.00_National_11_9_2016 Delete Subsections 104.01, 104.02, and 104.04.
Delete Subsections 104.01, 104.02, 104.04.
104.03_National_11_4_2016 Delete Subsection 104.03 and replace with the following:
104.03 Specifications and Drawings.
Refer to B(T) 5.211 in the 2400-6(T)) or F(T).2.1.1 in the 2400-13(T) contracts for requirements under this subsection.
104.06_National_11_9_2016 Add the following to Subsection 104.06:
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.
106 - Acceptance of Work 106.01_National_7_18_2017 Delete Subsection 106.01 and replace with the following:
106.01 Conformity with Contract Requirements.
Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.
References to standard test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the methods in effect on the date of solicitation for bids.
Perform all work to the lines, grades, cross-sections, dimensions, and processes or material requirements shown on the plans or specified in the contract.
Incorporate manufactured materials into the work according to the manufacturer’s recommendations or to these specifications, whichever is more strict.
Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.
When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, pipe conduits, etc., that are identified by gauge, unit mass, section dimensions, etc.), the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.
The Government may inspect, sample, or test all work at any time before final acceptance of the project. When the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site. If Contractor testing and inspection is verified by the Government, the Contractor’s results may be used by the Government to evaluate work for acceptance. Do not rely on the availability of Government test results for process control.
Acceptable work conforming to the contract will be paid for at the contract unit bid price. Four methods of determining conformity and accepting work are described in Subsections 106.02 to 106.05 inclusive. The primary method of acceptance is specified in each Section of work. However, work may be rejected at any time it is found by any of the methods not to comply with the contract.
Remove, repair, or replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted. Removing, repairing, or replacing work; providing temporary traffic control; and any other related work to accomplish conformity will be 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
1. 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.
106.02_National_11_9_2016
Delete Subsection 106.02 and replace with the following:
106.02 Visual Inspection.
Acceptance is based on visual inspection of the work for compliance with the specific contract requirements. Use prevailing industry standards in the absence of specific contract requirements or tolerances.
107 - Legal Relations and Responsibility to the Public 107.02_National_11_1_2016 Add the following to Subsection 107.02:
107.02 Protection and Restoration of Property and Landscape.
<Include language to clarify or interpret permit or other requirements>.
Examples:
Do not work within the wetted perimeter of streams before July 1 or after September 15.
Do not work within 1000 feet of an occupied dwelling on any legal holiday or between 12 noon Saturday and 6 a.m. the following Monday.
Do not work (except hauling material) within 1500 feet of osprey nests between March 1 and May 31. No known active nests were located within the 1500 feet limit as of June 15, 1991. If a new nest is found, suspend work (except hauling material) within 1500 feet of the nest location. See Subsection 108.06.
Delete this example text highlighted in yellow before including in final documents
107.05_National_7_18_2017 Delete Subsection 107.05.
Delete Subsection 107.05.
108 - Prosecution and Progress 108.00_National_11_9_2016 Delete Section 108 in its entirety.
Delete Section 108.
109 - Measurement and Payment 109.00_National_11_9_2016 Delete Subsections 109.06, 109.07, 109.08, and 109.09:
Delete Subsections 109.06, 109.07, 109.08, 109.09.
109.02_National_11_9_2016 Add the following sentence to Subsection 109.02(b):
109.02 Measurement Terms and Definitions.
(b) Contract quantity.
Contract quantities will be adjusted only when there are errors in the original design of 15% or more.
152 - Construction Survey and Staking 152.00_National_12_12_2016 Add the following to Subsection 152.04(c):
152.04 General.
(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.
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.
Make the following changes to Subsection 152.05:
152.05 Survey and Staking Requirements.
Delete Subsection 152.05(d)(2) and replace with the following:
(d) Slope and reference stakes.
(2) Conventional survey methods. 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.
Add the following to Subsection 152.05(e):
(e) Clearing and grubbing limits.
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.
Replace Table 152-1 with the following:
Table 152-1 Construction Survey and Staking Tolerances Table 152-1 Construction Survey and Staking Tolerances (1)
| Staking Phase |
| Horizontal |
| Vertical |
Control points set from existing Government control points- Tolerance Class A ±0.03 feet (±10 millimeters)
±0.01 feet ×
(±3 millimeters ×)(2)
Mapping, topography, and cross-section Points- Tolerance Class A ±0.16 feet (±50 millimeters) ±0.16 feet (±50 millimeters)
Centerline points (3) including (PC), (PT), (POT),(POC), and references- Tolerance Class A ±0.06 feet (±20 millimeters) ±0.06 feet (±20 millimeters)
| Slope-stake and slope-stake references- Tolerance Class A (4) |
| ±0.16 feet |
(±50 millimeters) ±0.16 feet ±50 millimeters)
Culverts, ditches, and minor drainage structures stakes- Tolerance Class A ±0.16 feet (±50 millimeters) ±0.06 feet (±20 millimeters)
| Retaining walls stakes |
| ±0.06 feet |
(±20 millimeters) ±0.03 feet (±10 millimeters)
| Curb and gutter stakes |
| ±0.06 feet |
(±20 millimeters) ±0.03 feet (±10 millimeters)
| Bridge substructures stakes |
| ±0.03 feet |
(±10 millimeters)(5) ±0.03 feet (±10 millimeters)
| Bridge superstructures stakes |
| ±0.03 feet |
(±10 millimeters)(5) ±0.03 feet (±10 millimeters)
| Clearing and grubbing limit stakes- Tolerance Class A |
| ±1.00 feet |
(±300 millimeters)
| Roadway subgrade finish stakes- Tolerance Class A (6) |
| ±0.16 feet |
(±50 millimeters) ±0.03 feet (±10 millimeters)
| Roadway finish grade stakes (6) |
| ±0.16 feet |
(±50 millimeters) ±0.03 feet (±10 millimeters)
Table 152-1 Construction Survey and Staking Tolerances (continued) (1)
| Staking Phase |
| Horizontal |
| Vertical |
| Control points set from existing Government control points –Tolerance Class B (7) |
| ±0.16 feet |
(±20 millimeters) ±0.16 feet × (±20 millimeters × )(2)
| Mapping, topography, and cross-section points–Tolerance Class B (7) |
| ±1.00 feet |
(±300 millimeters) ±0.50 feet (±150 millimeters)
| Centerline points including (PC), (PT), (POT),(POC), and references–Tolerance Class B (7) |
| ±0.16 feet |
(±20 millimeters) ±0.16 feet (±20 millimeters)
| Slope-stake and slope-stake references–Tolerance Class B (7) |
| ±0.50 feet |
(±50 millimeters) ±0.16 feet ±50 millimeters)
| Culverts, ditches, and minor drainage structures stakes–Tolerance Class B (7) |
| ±0.50 feet |
(±150 millimeters) ±0.16 feet (±20 millimeters)
| Clearing and grubbing limit stakes–Tolerance Class B (7) |
| ±2.00 feet |
(±600 millimeters)
| Roadway subgrade finish stakes–Tolerance Class B (7) |
| ±0.50 feet |
(±50 millimeters) ±0.16 feet (±10 millimeters)
| Roadway finish grade stakes–Tolerance Class B (7) |
| ±0.50 feet |
(±50 millimeters) ±0.16 feet (±10 millimeters)
(1) At statistical 95 percent confidence level. Tolerances are relative to existing Government control points.
(2) N is the number of instrument setups.
(3) Centerline points: PC - point of curve, PT - point of tangent, POT - point on tangent, POC - point on curve.
(4) Take the cross-sections normal to the centerline ±1 degree.
(5) Bridge control is established as a local network and the tolerances are relative to that network.
(6) Includes paved ditches.
(7) Tolerance Class B for Very Low Volume Roads with an aggregate or native finished surface.
153 - Contractor Quality Control 153.02_National_11_1_2016 Delete Subsection 153.02 and replace with the following:
153.02 Qualifications.
Submit the following for approval with the quality control plan:
(a) Quality control manager (QCM). Furnish a QCM who has at least 2 years’ experience in construction, inspector, quality control and material testing on construction projects of similar type and scope.
(b) Testers. Provide testers with at least one year experience in the type of sampling and testing required, and with one of the following for the type of sampling and testing performed:
(1) NICET Level II certification in highway material or equivalent state or industry certification;
(2) Certification by a regional certification program (such as Western Alliance for Quality Transportation Construction (WAQTC), Northeast Transportation Technician Certification Program (NETTCP), Southeast Task Force for Technician Training and Qualification (STFTTQ), or Multi Regional Training and Certification (M-TRAC)); or
(3) At least one year employment by an AASHTO accredited laboratory performing equivalent sampling and testing.
153.03_National_11_1_2016 Add the following paragraph to the end of Subsection 153.03(b):
153.03 Quality Control Plan.
(b) Quality Control Procedures.
Submit written proposals for approval of alternate AASHTO or State approved test methods. Alternate methods may be allowed based on documented equivalence to the specified method.
153.07_National_11_1_2016 Delete Subsection 153.07 and replace with the following:
153.07 Records and control charts.
Maintain complete testing and inspection records by pay item number and make them accessible to the COR.
155 - Schedules for Construction Contracts 155.00_National_11_9_2016 Delete Section 155 in its entirety.
Delete Section 155.
207 - Earthwork Geotextiles 207.04_National_11_8_2016 Delete third sentence of Subsection 207.04 and replace with the following:
207.04(c)(1) First layer placement and compaction.
Spread the end-dump pile of cover material maintaining <number> inch(es) lift over the geosynthetic.
208 - Structure Excavation and Backfill for Selected Major Structures 208.07_National_11_8_2016 Add the following to Subsection 208.07:
208.07 Dewatering.
Construct diversions according to Subsection 157.10 Diversions. Submit dewatering plans according to Subsection 104.03.
209 - Structure Excavation and Backfill 209.09_National_7_5_2017
209.09 Backfill.
Add the following paragraphs:
(a) General.
Backfill without damaging or displacing the culvert or structural plate structure. Replace any pipe that is distorted by more than 5 percent of nominal dimensions, or that is ruptured or broken.
(b) Pipe culverts.
Do not place or backfill pipe that meets any of the following conditions until the excavation and foundation have been approved in writing by the CO:
Embankment height greater than 6 feet at subgrade centerline.
Installation in a protected streamcourse.
Round pipe with a diameter of 48 inches or greater.
Pipe arches with a span of 50 inches or greater.
Any box culvert or structure other than pipe culverts.
209.10_National_7_17_2017 Delete Subsection 209.10 and replace with the following:
209.10 Compacting.
Compact the embankment using one of the following methods as specified.
(a) Compaction Method 1. Use AASHTO T 27 to determine the quantity of material retained on a No. 4 (4.75-millimeter) sieve. Compact as follows:
(1) More than 80 percent retained on a No. 4 (4.75-millimeter) sieve. Adjust the moisture content to a level suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Use compression-type rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet (1 meter) per second. Compact each layer of material full width with one of the following and until there is no visible evidence of further consolidation:
(a) Four roller passes of a vibratory roller having a minimum dynamic force of 40,000 pounds (180 kilonewtons) impact per vibration and a minimum frequency of 1000 vibrations per minute;
(b) Eight roller passes of a 20-ton (20-metric ton) compression-type roller; or
(c) Eight roller passes of a vibratory roller having a minimum dynamic force of 30,000 pounds (130 kilonewtons) impact per vibration and a minimum frequency of 1000 vibrations per minute.
Increase the compactive effort for layers deeper than 12 inches (300 millimeters) as follows:
For each additional 6 inches (150 millimeters) or fraction thereof, increase the number of roller passes in Subsection 209.10(a)(1)(a), by four passes; or For each additional 6 inches (150 millimeters) or fraction thereof, increase the number of roller passes in Subsection 209.10(a)(1)(b) and (c), by eight passes.
(2) 50 to 80 percent retained on a No. 4 (4.75-millimeter) sieve. Classify the material according to AASHTO M 145. Adjust the moisture content of material classified A-1 through A-5 to a moisture content suitable for compaction. Adjust the moisture content of material classified A-6 and A-7 to within 2 percent of the optimum moisture content. Use AASHTO T 99 to determine the optimum moisture content of the portion of the material passing a No. 4 (4.75-millimeter) sieve. Multiply this number by the percentage of material passing a No. 4 (4.75-millimeter) sieve, and add 2 percent to determine the optimum moisture content of the material.
Use nonvibratory rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet(1 meter) per second. Compact each layer of material full width according to Subsection 209.10(a)(1).
(3) Less than 50 percent retained on a No. 4 (4.75-millimeter) sieve. Classify the material according to AASHTO M 145. For material classified A-1 or A-2-4, determine the maximum density according to AASHTO T 99, Method C..
Adjust the moisture content of material classified A-1 through A-5 to a moisture content suitable for compaction. Adjust the moisture content of material classified A6 and A-7 to within 2 percent of the optimum moisture content.
Use compression-type or vibratory rollers. Compact each layer of material full width to at least 95 percent of the maximum density. Determine the in-place density and moisture content according to AASHTO T 310 or other approved test procedures. When required, use AASHTO T 224 to correct for coarse particles.
(b) Compaction Method 2. Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate roller compaction equipment over the full width of each layer until there is no visible evidence of further consolidation or, if when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes. Use compression-type rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet (1 meter) per second. Ensure rollers meet the following requirements:
(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than 250 pounds per inch (4.5 kilogram/millimeter) of width of the compression roll or rolls.
(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum dynamic force of 30,000 pounds (130 kilonewtons) impact per vibration, specifically designed to compact the material on which it is used.
(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 80 psi (550 Kilopascals).
(4) Sheepsfoot, tamping, or grid rollers capable of exerting a force of 250 pounds per inch (4.5 kilogram/millimeter) of width of roller drum.
(c) Compaction Method 3. Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer until there is no visible evidence of further consolidation. Make at least three complete passes.
(d) Compaction Method 4. Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer.
(e) Compaction Method 5. Adjust the moisture content of the material to a moisture content suitable for compaction. Compact the complete surface with a bucket of an excavator larger than 39,000 pounds (18 metric ton) Gross Vehicle Weight using a minimum of three blows. Overlap compaction by ½ width of bucket.
(f) Compaction Method 6. Adjust the moisture content of the material to a moisture content suitable for compaction. Compact using an approved mechanical tamper for a minimum of three complete passes.
When compacting with rollers or hauling and spreading equipment is not practical, use approved mechanical tampers for a minimum of three complete passes.
213 - Subgrade Stabilization 213.05_National_11_2_2016 Delete the second paragraph in Subsection 213.05 and replace with the following:
213.05 General.
Prepare the subgrade according to Subsection 303.05. Scarify or pulverize the subgrade to the required depth. Adequately blend the material to produce a homogeneous mixture within 2 percent of the optimum moisture content.
302 - Minor Crushed Aggregate 302.04_National_7_18_2017 Add the following to Subsection 302.04 and 302.04(a)
302.04 Placing Crushed Aggregate.
Written approval of the surface is required before placing aggregate.
(a) Roadway aggregate.
For pit run or grid-rolled material, furnish material smaller than the maximum size, no gradation will be required otherwise. After processing on the road, remove all oversize material from the road and dispose as directed by the CO.
303 - Road Reconditioning 303.07_National_7_18_2017 Add the following to Subsection 303.07:
303.07 Roadway Reconditioning.
Remove cattleguard decks. Clean the deck and the area beneath the cattleguard of soil and other material to the bottom of the original foundation over the entire width of the installation. Dispose of waste at designated sites or according to Subsection 204.14. Reinstall the cattleguard deck.
314 - Stockpiled Aggregates 314.00_National_7_17_2017 Add the following to Subsection 314.01:
314.01 Description.
Pit or quarry development work consists of clearing, grubbing, stripping topsoil, removing overburden, constructing access roads, conducting restoration activities, and performing other incidental work required for pit or quarry development.
Add the following to Subsection 314.04 after the first sentence of second paragraph:
314.04 Stockpile Site.
Submit a plan of operation according to Section 105.02. Perform the work in accordance with MSHA 30 CFR, part 56.
602 - Culverts and Drains 602.05_National_7_7_2017 Add the following to Subsection 602.05.
602.05 Laying Metal Pipe.
(c) Standard Connecting bands. Band corrugation shall match that of the pipe sections being joined or the annular rerolled ends of those pipe sections.
633 - Permanent Traffic Control 633.00_National_11_8_2016 Delete the first sentence of Subsection 633.02 and replace with the following:
633.02 Material.
Conform to the MUTCD, USDA Forest Service EM-7100-15, and the following Section and Subsections:
Make the following changes to Subsection 633.03:
633.03 General.
Delete the first paragraph of Subsection 633.03 and replace with the following:
Furnish and install permanent traffic control devices according to the MUTCD, USDA Forest Service EM-7100-15 and permanent traffic control plans. Provide traffic control devices that are crashworthy.
Add the following sentence to Subsection 633.03:
Sign panel layout proofs shall be approved by the CO prior to ordering.
Add the following to Subsection 633.05(a):
633.05 (a) Fabrication.
(3) Protective Overlay Film. When specified, cover the entire face of a sign with a clear high-performance, solvent-resistant, ultraviolet-stabilized, pressure-sensitive adhesive, protective overlay film. Use 3M Scotchlite Premium Protective Overlay Film Series 1160 or approved equivalent.
(4) Edge Film. When specified, edge film shall be 3 inches wide vinyl film that is pressure-sensitive, premium quality, clear, and ultraviolet-resistant.
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