Atch 3 - Blackrock RD RD Parking Lot Rpr Specifications.pdf
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- Attached to
- GAOA Blackrock RD Parking Lot Rpr
- Solicitation number
- 1240LT24Q0014
- Issued by
-
Department of Agriculture Forest Service
About this file
This document contains specifications for asphalt concrete pavement repair work for a Forest Service parking lot. The specifications outline requirements for asphalt mix design, production, placement, and compaction. Two mix types are designated, with Type I requiring submittal of a state DOT-approved job mix formula and Type II requiring submittal of specifications for locally-used mix properties. Placement and compaction methods are specified, with minimum compaction requirements. Sampling, testing, and acceptance criteria are provided in a table, including requirements for density testing of the in-place pavement.
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Table 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
Delete Section 102
103 - Scope of Work
Delete Subsections 103.02, 103.03, 103.04, 103.05
104 - Control of Work
Delete Subsections 104.01, 104.02, 104.04
104.06 Use of Roads by Contractor
105 - Control of Material
105.05 Use of Material Found in the Work
106 - Acceptance of Work
106.01 Conformity with Contract Requirements
106.02 Visual Inspection
107 - Legal Relations and Responsibility to the Public
Delete Subsection 107.05
108 - Prosecution and Progress
Delete Section 108
109 - Measurement and Payment
Delete Subsections 109.06, 109.07, 109.08, 109.09
109.01 Measurement of Work
109.02 Measurement Terms and Definitions
155 - Schedules for Construction Contracts
Delete Section 155
403 – ASPHALT CONCRETE
Section 403. — ASPHALT CONCRETE
Table 403-2
Preface Preface_wo_04_26_2021
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_1_22_2020
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 Public Works contract specifications or Timber Sale and IRTC contract provisions to determine merchantable timber.
A dd F igure 101-1— Illustration of road structure term s:
Figure 101-1— Illustration of road structure term s.
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.
104.06_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.
105 - Control of Material 105.05_National_6_29_2020
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. Place excess material safely at government-approved location, at no additional cost to government.
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
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.
106.02_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 107.05_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.
109.01_National_2_22_2019
Delete the third paragraph and Table 109-1 of Subsection 109.01 and replace with the following:
109.01 Measurement of Work.
Take measurements as described in Subsection 109.02 unless otherwise modified by the Measurement Subsection of the section controlling the work being performed. Table 109-1 indicates the accuracy required for quantities of the various pay units used in the Schedule of Items. Use this guide to determine the decimal placement in the final payment.
Table 109-1 Decimal Accuracy of Quantities for Final Payment
Pay Item Level of Precision Linear Foot 1
Exception--Timber, Steel, and concrete Piles 0.1 Station 0.1 Mile 0.01 Square Foot 0.1 Square Yard 0.1 Each 1 Acre 0.01 Gallon 1 M-Gals. 0.1 Cubic Yard 1
Exception--Structure Excavation; Sheathing Materials; Bedding, Bed Course, and Backfill Materials; Gabions;
0.1
Exception--Concrete; Masonry 0.01 Pound 1 Ton 0.1
Exception--Calcium Chloride;
Sodium Chloride; Hydrated Lime;
Bituminous Materials; Pavements;
Bed Course Materials
0.01
Hour 0.1
MFBM 0.01
Station Yard 1 Cubic Yard Mile 1 Ton Mile 1
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.
155 - Schedules for Construction Contracts 155.00_National_11_9_2016
Delete Section 155 in its entirety.
Delete Section 155.
403 – ASPHALT CONCRETE
Delete Section 403 in its entirety and replace with the following.
Section 403. — ASPHALT CONCRETE Description
403.01 This work consists of constructing asphalt concrete pavement using a hot or warm mix asphalt (HMA or WMA). Asphalt concrete type is designated as Type I or Type II according to Subsection 403.02.
Construction Requirements
403.02 Composition of Mix (JMF). Conform to current state department of transportation material specifications for asphalt concrete.
(a) Type I. Submit a state department of transportation JMF approved within the past 12 months for approval at least 30 days before production. For each proposed JMF, submit a production certification conforming to state department of transportation specifications and conforming to design parameter (a), (b), or (c) for the type of mix submitted and conforming to design parameter (d) in Table 403-1.
Table 403-1 Asphalt Concrete Mix Requirements Design Parameters Specification
(a) Volumetric hot asphalt concrete pavement (AASHTO M 323, AASHTO R 35, and AASHTO T 312)
Gyratory compaction level 7, 75, 115 Volumetric properties at 0.3 to 3 million ESAL’s (AASHTO M 323) See Table 401-1
(b) Hveem (AASHTO T 246 and AASHTO T 247) Stabilometer, minimum 35 Percent air voids (1) 3.0 – 5.0
(c) Marshall (AASHTO T 245) Stability, pounds (kilonewtons), minimum 1500 (6.67) Flow, 0.01 inches (0.25 millimeters) 8 – 16 Percent air voids (1) 3.0 – 5.0 Compaction, number of blows each end of test specimen 50
(d) Moisture susceptibility (AASHTO T 283)
0.80 Tensile strength ratio, minimum
(1) The percent of air voids are based on AASHTO T 166, AASHTO T 209 and AASHTO T 269.
(b) Type II. Provide a mix composed of crushed stone or gravel and asphalt binder mixed in an approved plant. Use an aggregate gradation and asphalt binder of a quality conforming to those normally used locally by either Federal, state or local agencies for the type of work being constructed.
Submit the strength, quality, and gradation specifications for the asphalt concrete mix.
Include copies of laboratory test reports that demonstrate aggregate, asphalt binder, additive, and mix properties meet Federal, state or local government agency specifications.
For both Type I and Type II, submit the maximum specific gravity (density) of the mix as determined by AASHTO T 209.
403.03 Production Start-Up Procedures. See Subsection 153.04(b).
403.04 Mixing Plant. See Subsection 401.04.
403.05 Surface Preparation. See Subsection 401.06.
403.06 Weather Limitations. See Subsection 401.07.
403.07 Hauling. See Subsection 401.11.
403.08 Placing and Finishing. Do not use mixes produced from different plants unless the mixes are produced according to the same JMF, use material from the same sources, and are approved.
Place HMA at a temperature conforming to Table 401-2. Place WMA at temperatures conforming to Subsection 401.03. Measure temperature of the asphalt concrete mix in the hauling vehicle just before dumping into the spreader or measure it in the windrow immediately before pickup.
(a) Asphalt concrete for roadway construction. Place the mix with a paver conforming to Subsection 401.05. Control horizontal alignment using a reference line. Automatically control the grade and slope from reference lines, a ski and slope control device, or dual skis. Use skis having a minimum length of 20 feet (6 meters).
In areas where mechanical spreading and finishing is impractical; place and finish the asphalt concrete mix according to Subsection 403.08(b).
Offset the longitudinal joint according to Subsection 401.13.
(b) Asphalt concrete for non-roadway uses. Spread and finish each course by hand raking, screeding, or by other approved methods.
403.09 Compacting. Thoroughly and uniformly compact the asphalt surface by rolling. In places inaccessible to rollers, use alternate equipment approved by the CO. Do not cause cracking, shoving or undue displacement.
Monitor the compaction process with nuclear density gauges calibrate according to the ASTM D2950 calibration section within 6 months before use. Check the standard and reference on each day of use according to the ASTM D2950 standardization and reference check sections.
Compact to at least 91.0 percent of the maximum specific gravity (density) determined in Subsection 403.02.
No individual compaction test result shall have a density less than 89 percent of maximum specific gravity and the average of all the compaction tests results shall be greater than 91.0 percent of the maximum specific gravity.
Continue compaction until surface marks are eliminated and cracks are sealed.
403.10 Joints, Trimming Edges, and Cleanup. See Subsection 401.15.
403.11 Pavement Straightedge Measurement. Measure the pavement surface using a 10-foot (3-meter) metal straightedge at right angles and parallel to the centerline. Defective areas are deviations between the surface and the bottom of the straightedge in excess of ¼ inches (6 millimeters) measured between two contacts of the straightedge or deviations in excess of ¼ inches (6 millimeters) measured at the end of the straightedge.
Correct defective areas according to Subsection 401.16(g)(1) through (4). Obtain approval for the method of correction.
403.12 Acceptance. See Table 403-2 for sampling, testing, and acceptance requirements.
Asphalt concrete mix properties will be evaluated under Subsection 106.04.
Asphalt binder will be evaluated under Subsection 106.03.
Construction of asphalt concrete work will be evaluated under Subsections 106.02 and 106.04.
Pavement straightedge measurement will be evaluated under Subsection 106.04.
Quality assurance compaction tests must be taken at locations provided by the CO for acceptance.
Measurement
403.13 Measure the Section 403 pay items listed in the bid schedule according to Subsection 109.02.
Payment
403.14 The accepted quantities will be paid at the contract price per unit of measurement for the Section 403 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.
Table 403‐2 Sampling, Testing, and Acceptance Requirements
Material or Product
(Subsection)
Type of Acceptance (Subsection
Characteristic Test Methods Specifications
Sampling Frequen cy
Point of Samplin g
Split Sampl e
Reporting Time
Remarks
Production Asphalt concrete
Type I or II (403.02(a))
Measured and tested for conformanc e (106.04)
Density ASTM D2950 (Average of up to 4 measurements per test. Rotate gauge 90 degrees for each measurement.)
10 per day at specified locations
In-place after compacting
Yes 24 hours −
Surface Straightedge Continuously, Finished No " − tolerance measurement, after pavement Subsection compaction surface 403.11 Placement − First load Hauling vehicle " Upon − temperature and as before dumping, completion determined by or windrow of CO thereafter before pickup measurement Process control Gradation AASHTO Contractor Cold feed or " 24 − (153.03) at the plant T 27 & T 11 determined hot bins hours as applicable Moisture AASHTO " Stockpile " " − content of T 255 aggregates Density ASTM 1 per In-place after " " − D2950 500 feet compacting (150 meters)
| Preface |
| 101 - Terms¸ Format¸ and Definitions |
| 101.01 Meaning of Terms. |
| 101.03 Abbreviations. |
| 101.04 Definitions. |
| 102 - Bid¸ Award¸ and Execution of Contract |
| Delete Section 102. |
| 103 - Scope of Work |
| Delete Subsections 103.02, 103.03, 103.04, 103.05. |
| 104 - Control of Work |
| Delete Subsections 104.01, 104.02, 104.04. |
| 104.06 Use of Roads by Contractor. |
| 105 - Control of Material |
| 105.05 Use of Material Found in the Work. |
| 106 - Acceptance of Work |
| 106.01 Conformity with Contract Requirements. |
| 106.02 Visual Inspection. |
| 107 - Legal Relations and Responsibility to the Public |
| Delete Subsection 107.05. |
| 108 - Prosecution and Progress |
| Delete Section 108. |
| 109 - Measurement and Payment |
| Delete Subsections 109.06, 109.07, 109.08, 109.09. |
| 109.01 Measurement of Work. |
| 109.02 Measurement Terms and Definitions. |
| 155 - Schedules for Construction Contracts |
| Delete Section 155. |
| 403 – ASPHALT CONCRETE |
| Section 403. — ASPHALT CONCRETE |
| Table 403-2 |
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