New Hampshire Department of Transportation Standard Specifications – 2016
106.01Source of Supply and Quality Requirements
All materials used shall meet the requirements of the Contract. In order to expedite the inspection and testing of materials, the Contractor shall notify the Engineer of the proposed sources of materials to be used in the Work before delivery. The Engineer has the option of conditionally approving materials at the supply source. Any material incorporated into the Work that subsequently fails to meet the Contract requirements shall be corrected to the satisfaction of the Engineer or removed. All materials used in the Work shall be new unless otherwise specifically prescribed in the Contract.
106.02Local Material Sources
Possible sources of local materials may be i ndicated on the Plans and described in the Proposal. Since it is not feasible to determine from natural deposit sampling the acceptable limits for an entire deposit, variations in materials quality within the deposits are to be conside red usual and to be expected. The Engineer may order procurement of material from any portion of a deposit and will reject portions of the deposit as unacceptable if the material fails to meet specification requirements. The Department may make availabl e the right to take materials from designated sources described in the Contract together with the right to use the property as specified, for plant site, stockpiles, and hauling roads. If this procedure has been chosen by the Department, the Contract will define the acquisitions or rights provided. If material is used from other than Contract designated sources, the Contractor shall comply with the regulations of RSA 155- E, acquire the necessary rights to take materials from the sources, and pay all related costs. The Contractor shall submit to the Department a copy of the permit for excavation (required under RSA 155-E) showing that the excavation site has been permitted by the Regulator prior to removing any material from that site. Where practicable, pits, quarry sites, and access roads shall be located so that they will not be visible from any highway. Pits and quarries shall be excavated so that water does not collect and stand on the site during the work. Foll owing the completion of the work, pits and quarries shall be left in a neat and presentable condition. For Contractor-acquired rights to excavation sites, upon completion of the work, the Contractor shall ensure that the necessary grading and reclamation w ork as required per RSA 155- E is done. Acceptance of the project will not be made until a written release from the property owner indicates that the agreement conditions with the Contractor have been satisfied. The Contractor’s attention is directed to RS A 482-A:3, the requirements of which must be fulfilled if the excavation site involves excavation or dredging of wetlands and to the provisions of RSA 483-B and RSA 485-A:17, if the excavation site involves dredging or mining on the border of the surface w aters of the State or will significantly alter the characteristic natural runoff or create an unnatural runoff. The Contractor’s attention is also directed to Executive Orders 11988 and 11990 if the excavation site will affect floodplains or wetlands. The Contractor’s attention is also directed to Section 10 of the Rivers and Harbors Act of 1899 and Sections 401 and 404 of the Clean Water Act, for which compliance may require a permit for work in or affecting “ navigable waters of the U.S., ” or material placed in “ waters of the U.S.,” including wetlands. The Contractor is cautioned of the potential to encounter contaminated soils within the excavation area and, if encountered, shall avoid incorporating contaminated soils within the limits of the project. Furthermore, the Contractor shall complete a Historic and Archaeological Resources certification in accordance with the Contract. A Pit Agreement Form shall be completed and submitted for each excavation site that the Contractor intends to open in accordance with RSA 155 -E:2,IV. The Pit Agreement form may be obtained online at the Department’s Website or from the Engineer.
106.03Samples, Tests, Cited Specifications
Materials will be inspected, tested, and approved by the Engineer or accepted by a Certificate of Compliance fr om the Contractor as specified in 106.04 unless otherwise specified in the Special Provisions for QC/QA items. The Contractor shall not rely on the results of Department testing being available for Process Quali ty Control. Materials found to be unacceptable and unauthorized will not be paid for and, if directed by the Engineer, shall be removed at the Contractor’s expense. Unless otherwise designated, materials tests will be performed by and at the expense of the Department using the standard test methods of the Department, AASHTO, ASTM, or FSS (unless other standard methods are designated) that are in effect on the date of advertisement for Proposals, except that the Engineer reserves the right to make use of an y information or method of testing to determine that the material meets the Contract requirements. If there is a difference in the test methods, the order of precedence for the test procedures used will be as follows:
New Hampshire Department of Transportation Standard Specifications – 2016 Samples for testing purposes shall be furnished by the Contractor at no cost to the Department. The sampling and sample splitting of materials tested by the Department will be performed or observed by a qualified re presentative of the Department. The Department may retest and reject unacceptable materials previously tested and conditionally accepted at the source of supply. Materials to be used are subject to inspection, testing, or rejection prior to Acceptance. Copies of any tests will be furnished to the Contractor’s representative upon request. Random samples of materials or completed work may be taken as checks on the control sampling and testing to determine reasonable compliance with the Specifications. Such sampling will be at any time prior to Acceptance of the Work, either while any phase of the Work is in progress or after it has been completed. The extent and locations of such random sampling will b e as designated by the Engineer. In all AASHTO or ASTM specifications, the sections entitled “ Inspection” shall be amended to provide that tests of materials may be made in any Laboratory as defined in Section 101. All sieves shall conform to the requirements of the AASHTO M 92, and shall be square hole wire cloth sieves. When sampling and testing of seeds is required, sampling and testing methods shall be as prescribed in the Rules and Regulations established in accordance with RSA 433. Equipment required to be supplied by the Contractor for Department use under the specifications shall be calibrated yearly in accordance with the calibration method indicated below. Newly acquired equipment without manufacturers certification and equipment that has not been calibrated or verified because it has been removed from service shall be calibrated or verified b efore being placed in service. Equipment Calibration Method Bench Oven NHDOT Procedure SC-2 Centrifuge Extractor AASHTO T 164 Marshall Hammer AASHTO T 245 Marshall Molds AASHTO T 245 Mechanical shaker AASHTO T 27, 7.4 Pressure Air Meter AASHTO T 152 Proctor Molds NHDOT Procedure SC-3 Proctor Manual Hammers NHDOT Procedure SC-4 Scales and Balances AASHTO M 231 Sieves ASTM E-11 Methods 1&2 Slump Cone NHDOT Procedure PC-5 Straight edge NHDOT Procedure SC-6 Standard 1/10 ft3 Container (Unit Weight Buckets) NHDOT Procedure PC-2 Vacuum Pump AASHTO T 209
Any equipment listed above required by S ections 401, 520, and 698 shall be calibrated by the Contractor in accordance with the calibration method specified. The Contractor shall prepare and maintain record forms an d a file for each piece of equipment in each laboratory requiring calibration or verification. The file and form for each piece of equipment shall contain detailed information identifying th e equipment, records of calibration, or verification work performed in chronological order and the next date calibration or verification work is required (Month and Year) and shall be kept in the same laboratory as the equipment. When any test equipment is overloaded, mishandled, giving results that are suspect, or is not meeting specification tolerances, the Engineer shall notify the Contractor and the equipment shall be taken out of service. The equipment shall be returned to service only after appropriate repairs are made and calibration and verification shows the eq uipment to function satisfactorily or to meet specification tolerances.
.1 Quality Control/ Quality Assurance (QC/QA)
The Contractor may observe the Department’s sampling and testing. If the Contractor believes that a sampling and/or test procedure deviates from the specified procedure, the Contractor shall describe the deviation to the Engineer’s designated representative immediately and document the deviation in writing within twenty -four (24) hours. Immediately upon request and explanation of the deviation by the Contractor , the original sampling and/or testing will be completed and recorded, and then a second sample of the material will be taken and tested using what the Contractor believes to be the correct procedure. The specified sample and/or test method will be reviewed at a later time to determine which procedure is correct. The test result obtained using the procedure determined to be correct will be used for the sublot. The Contractor may dispute the results of acceptance tests performed in a laboratory. If the Contractor believes that a laboratory test result is in error, the Contractor shall substantiate the
New Hampshire Department of Transportation Standard Specifications – 2016 reason for the belief that the test result is in error immediately and document the reasons in writing within 24 hours of th is notification. If the Engineer agrees that there is sufficient reason to question the test result, the Engineer shall arrange to have the material tested by a different technician in a different Department laboratory or by an independent laboratory accr edited by AASHTO in the test to be performed. If additional samples are necessary, the Contractor shall assist in obtaining the samples at no cost to the Department. If samples are to be taken from the finished work, the Contractor shall replace the removed material to the satisfaction of the Engineer, also at no cost to the Department. If the original sampling and/or testing procedure or laboratory test result is found to have been done correctly, the Contractor shall bear the cost of the second sampling, testing, and evaluation, as shown in the table below. Such costs shall be deducted from any monies owed the Contractor. TEST COST Concrete Air Test $200/test Concrete Strength Test $200/test Concrete W/C Ratio Test $200/test Concrete Permeability Test $500/test Concrete Cover Test $500/test Asphalt Gradation and/or Voids Tests $200/test Asphalt Voids and/or Thickness Tests $300/test Asphalt Cross-Slope Measurement $200/test Asphalt Ride Quality Test $1100/test
Items designated for acceptance under Quality Assurance (QA) provisions will be randomly sampled and tested in accordance with the recommended acceptance guidelines specified for that item. Acceptance tests will govern in all cases for determination of pay factors without regard to quality control tests.
.1.1 The Contractor shall provide Process Quality Control adequate to produce work of acceptable quality. The
Contractor shall perform process quality control sampling, testing, and inspection during all phases of the work at a rate sufficient to assure that the work conforms to the Contract requirements and the minimum guidelines specified for that item. The Engineer will not sample or test for Process Control or assist in controlling the Contractor’s production operations. The Contractor shall provide personnel and testing equipment capable of providing a product that conforms to specified requirements. Continued production of non-conforming work at a reduced price, in lieu of adjustments to bring work into conformance, will not be allowed.
.1.2 The Contractor shall provide and maintain a Process Quality Control Plan, hereinafter referred to as the “ Plan,”
including all the personnel, equipment, supplies, and facilities necessary to obtain samples, perfor m tests, and otherwise control the quality of the product to meet specified requirements. The Contractor shall be prepared to present and discuss, at the pre-construction conference, quality control responsibilities for the specific items indicated in the Contract. The Contractor shall submit five copies of the Quality Control Plan to the Construction Bureau office in Concord directed to the appropriate District Construction Engineer a minimum of 20 working days prior to the pre-placement meeting. A copy o f the cover letter or transmittal letter shall be forwarded to the Contract Administrator to notify project personnel of the plan submittal. The Contractor shall not start work on the subject items without an approved Plan. Partial payment will not be mad e for materials subject to specific quality control requirements without an approved Plan. The approval process for the Contractor ’s Plan may include inspection of testing equipment and a sampling and testing demonstration by the Contractor ’s technician(s) to assure an acceptable level of performance.
.1.3 The Contractor shall schedule a pre -placement meeting a minimum of five working days prior to the start of
related work. The meeting shall include the Plan Administrator, Contract Administrator, D istrict Construction Engineer, Contractor, Supplier, and QC/QA Coordinator. Additional meetings may be required if changes to the plan or procedures are made, or when required to solve problems that arise.
.1.4 All Contractor process quality control testing under the Plan shall be performed by qualified technicians in
laboratories approved by the Bureau of Materials and Research. Technician qualifications shall be as described in the specifications for the item being accepted under Quality Assurance provisions. Laboratory facilities shall be kept clean and all equipment shall be maintained in proper working condition. The Engineer shall be permitted unrestricted access to inspect and review the Contractor ’s laboratory facility. The Engineer will ad vise the Contractor in writing of any noted deficiencies concerning the laboratory facility, equipment, supplies, or testing personnel and
New Hampshire Department of Transportation Standard Specifications – 2016 procedures. Deficiencies shall be grounds for the Engineer to order an immediate stop to incorporating materials int o the work until deficiencies are corrected.
.1.5 The Plan shall be administered by a qualified individual. Administrator qualifications shall be described in the
specifications for the item being accepted under Quality Assurance provisions. The Pl an Administrator or his/her approved designee shall be available whenever work under QC/QA specification is being performed. The individual administering the Plan must be a full -time employee of or a consultant engaged by the Contractor . The individual shall have full authority to institute any and all actions necessary for the successful operation of the Plan.
.1.6 The Plan shall contain a system for sampling that assures all material being produced has an equal chance of
being selected for testing. The Engineer shall be provided the opportunity to witness all sampling. When directed by the Engineer, the Contractor shall sample and test any material that appears inconsistent with similar material being sampled, unless such material is voluntarily re moved and replaced or corrected by the Contractor . All sampling shall be in accordance with Department, AASHTO, or ASTM procedures.
.1.7 All testing shall be performed in accordance with the acceptance test procedures applicable to the specified
Contract items or other methods set forth in the approved Plan. Should acceptance test procedures not be applicable to quality control tests, the Plan shall stipulate the test procedures to be utilized. Upon request, the Contractor shall provide copies of all test results on forms meeting the approval of the Engineer.
.1.8 The Contractor shall maintain complete records of all process quality control tests and inspections. The records
shall be available to the Engineer for review and copies furnished upon request. Control Charts acceptable to the Engineer shall be maintained and kept current at a location satisfactory to the Engineer. A s a minimum, the Control Charts shall identify the project number, the Contract item number, the test number, each tes t parameter, the upper and lower specification limit applicable to each test parameter, and the Contractor ’s test results. The Contractor shall use the Control Charts as part of a process control system for identifying production and equipment problems an d for identifying pay factor reductions before they occur.
.2 Items specified to be sampled and tested on a Quality Assurance (QA) basis will be evaluated for acceptance in
accordance with the guidelines specified for that item. All acceptance test results for a lot as defined in the specification will be analyzed collectively and statistically by the Quality Level Analysis -Standard Deviation Method using the procedures listed to determine the total estimated percent of the lot that is within specification limits. Test results on material not incorporated in the work will not be included in the quality level analysis.
.2.1 A lot containing non-specification material (less than 1.00 pay factor) will be accepted provided the pay factor
is at least 0.75 and there are no isolated defects identified by the Engineer.
.2.2 A lot containing non -specification material that fails to obtain at least a 0.75 pay factor will be subject to the
following: The Contractor shall submit a procedure for corr ection of the non-specification material for approval by the Engineer. After any approved correction of any sublots, new samples from these sublots will be taken to be used in calculating pay factors for the lot and the old test results will be discarded. Alternatively, the Contractor may submit a written request for acceptance of the material at a negotiated price. Such request for acceptance shall include an Engineering analysis showing expected effects o n performance and service life. The Engineer will determine whether the material may remain in place at the negotiated price.
.2.3 The Engineer may reject material that appears to be defective based on visual inspection. Such rejected material
shall not be used in the work. No payment will be m ade for the materials rejected by the Engineer unless the Contractor requests the rejected material be tested prior to disposal, and it is found to be acceptable. Three representative samples will be obtained and tested; and the results will be statistically evaluated. If found to have a pay factor of less than 0.75 or as otherwise specified, no payment will be made and the Contractor will bear the cost of the sampling, testing, and evaluation. If the pay factor is 0.75 or greater, or as otherwise specified, payment will be made for the materials at the invoice cost plus 10%.
New Hampshire Department of Transportation Standard Specifications – 2016
.2.4 Quality Level Analysis - Standard Deviation Method procedures are as follows:
X = Σx n
Where: Σ = summation of x = individual test value of x n = total number of test values
s = n x x) n(n Σ Σ( ) ( ) 2 2 − −
Where: Σ(x2) = summation of the square of individual test values. (Σx)2 = summation of the individual test values squared.
QU = USL X s − Where: USL = upper specification limit.
QL = X LSLs − Where: LSL = lower specification limit.
Note: If a USL is not specified, PU will be 100.
Note: If a LSL is not specified, PL will be 100.
Quality Level = (PU + PL) - 100
CPF = [ ( ) ( ) ... ( )]f PF f PF f PF f j j1 1 2 2+ + Σ
Where: fj = price adjustment factor listed in the specifications for the applicable property. PFj = Pay Factor for the applicable property. Σf = Sum of the “ f” (price adjustment) factors. Note: Numbers used in the above calculations will be rounded to 3 places after the decimal point. Pay factors and Composite Pay Factors will be computed to 2 places after the decimal point.
.2.5 If a measured characteristic is not included in the Contract or is not evaluated due to Department -owned test
equipment being inoperable, its pay factor shall be 1.00 when calculating the CPF.
.3 Random Sampling Locations
The selection of the sampling locations for quality assurance tests must be entirely random. This procedure shall be used for determining the location for taking a sample in order to eliminate any intentional or minimize any unintentional bias on the part of the person taking the sample.
New Hampshire Department of Transportation Standard Specifications – 2016 Sampling locations shall be determined on the basis of time, to nnage, volume, distance, area, and the size of the sublot to be sampled. Random numbers shall be selected using the procedures outlined below. Once the random numbers have been selected, they shall be applied to the sublot sizes to determine sampling location.
.3.1 Sampling In-Place Roadway Material: Determine tonnage of the sublot. Following method #1 or method #2,
pick two random numbers for each sublot. Multiply the random numbers by the width and tonnage to arrive at the sampling location. Example: A sublot is 750 tons . The lane being paved is 12 ft. wide. Using a random number, which is then multiplied by 750. In this instance, the number chosen was 0.376. Thus, the s ample will be taken at 282 tons from the beginning of the sublot. Determine the location from the edge of the pavement by using the second random number, which is then multiplied by 12 ft . In this instance, the number chosen was 0.512. Therefore, the sa mple should be taken at 282 tons from the beginning of the sublot and 6 ft. from the designated (right or left) edge of the pavement.
.3.2 Sampling Concrete Truck Loads: Determine the quantity that represents a sublot of material. To determine
which trucks to sample, choose a random number and multiply this number by the total quantity in the sublot. This will give an indication on when to take the sample. Example: A s ublot of concrete is 50 cy . Using a random number, which i s then multiplied by 50 cy. In this instance, the number chosen is 0.763. The result comes out at 38 cy, which falls in the 5th load (assuming 8 cy. per load). Sample the concrete within the middle third of the 5th load.
.3.3 Random Numbers. Random numbers may be obtained by using the random number generator function found
on hand-held calculators or computer spreadsheet programs.
New Hampshire Department of Transportation Standard Specifications – 2016 Table 106-1 Quality Level Analysis by the Standard Deviation Method
Upper Quality Index QU or Lower Quality Index QL PU or
n= n= n= n= n= n=
n= n= 10 12 15 19 26 38 70 201 To to to to to to to to n=3 n=4 n=5 n=6 n=7 n=8 n=9 n= n= n= n= n= n= n= n=x 11 14 18 25 37 69 200 100 1.16 1.50 1.79 2.03 2.23 2.39 2.53 2.65 2.83 3.03 3.20 3.38 3.54 3.70 3.83 99 1.47 1.67 1.80 1.89 1.95 2.00 2.04 2.09 2.14 2.18 2.22 2.26 2.29 2.31 98 1.15 1.44 1.60 1.70 1.76 1.81 1.84 1.86 1.91 1.93 1.96 1.99 2.01 2.03 2.05 97 1.41 1.54 1.62 1.67 1.70 1.72 1.74 1.77 1.79 1.81 1.83 1.85 1.86 1.87 96 1.14 1.38 1.49 1.55 1.59 1.61 1.63 1.65 1.67 1.68 1.70 1.71 1.73 1.74 1.75 95 1.35 1.44 1.49 1.52 1.54 1.55 1.56 1.58 1.59 1.61 1.62 1.63 1.63 1.64 94 1.13 1.32 1.39 1.43 1.46 1.47 1.48 1.49 1.50 1.51 1.52 1.53 1.54 1.55 1.55 93 1.29 1.35 1.38 1.40 1.41 1.42 1.43 1.44 1.44 1.45 1.46 1.46 1.47 1.47 92 1.12 1.26 1.31 1.33 1.35 1.36 1.36 1.37 1.37 1.38 1.39 1.39 1.40 1.40 1.40 91 1.11 1.23 1.27 1.29 1.30 1.30 1.31 1.31 1.32 1.32 1.33 1.33 1.33 1.34 1.34 90 1.10 1.20 1.23 1.24 1.25 1.25 1.26 1.26 1.26 1.27 1.27 1.27 1.28 1.28 1.28 89 1.09 1.17 1.19 1.20 1.20 1.21 1.21 1.21 1.21 1.22 1.22 1.22 1.22 1.22 1.23 88 1.07 1.14 1.15 1.16 1.16 1.16 1.17 1.17 1.17 1.17 1.17 1.17 1.17 1.17 1.17 87 1.06 1.11 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.13 1.13 86 1.04 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 1.08 85 1.03 1.05 1.05 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 84 1.01 1.02 1.01 1.01 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.99 0.99 0.99 83 1.00 0.99 0.98 0.97 0.97 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.95 0.95 0.95 82 0.97 0.96 0.95 0.94 0.93 0.93 0.93 0.92 0.92 0.92 092 0.92 0.92 0.92 0.92 81 0.96 0.93 0.91 0.90 0.90 0.89 0.89 0.89 0.89 0.88 0.88 0.88 0.88 0.88 0.88 80 0.93 0.90 0.88 0.87 0.86 0.86 0.86 0.85 0.85 0.85 0.85 0.84 0.84 0.84 0.84 79 0.91 0.87 0.85 0.84 0.83 0.82 0.82 0.82 0.82 0.81 0.81 0.81 0.81 0.81 0.81 78 0.89 0.84 0.82 0.80 0.80 0.79 0.79 0.79 0.78 0.78 0.78 0.78 0.77 0.77 0.77 77 0.87 0.81 0.78 0.77 0.76 0.76 0.76 0.75 0.75 0.75 0.75 0.74 0.74 0.74 0.74 76 0.84 0.78 0.75 0.74 0.73 0.73 0.72 0.72 0.72 0.71 0.71 0.71 0.71 0.71 0.71 75 0.82 0.75 0.72 0.71 0.70 0.70 0.69 0.69 0.69 0.68 0.68 0.68 0.68 0.68 0.67 74 0.79 0.72 0.69 0.68 0.67 0.66 0.66 0.66 0.66 0.65 0.65 0.65 0.65 0.64 0.64 73 0.76 0.69 0.66 0.65 0.64 0.63 0.63 0.63 0.62 0.62 0.62 0.62 0.62 0.61 0.61 72 0.74 0.66 0.63 0.62 0.61 0.60 0.60 0.60 0.59 0.59 0.59 0.59 0.59 0.58 0.58 71 0.71 0.63 0.60 0.59 0.58 0.57 0.57 0.57 0.57 0.56 0.56 0.56 0.56 0.55 0.55 70 0.68 0.60 0.57 0.56 0.55 0.55 0.54 0.54 0.54 0.53 0.53 0.53 0.53 0.53 0.52 69 0.65 0.57 0.54 0.53 0.52 0.52 0.51 0.51 0.51 0.50 0.50 0.50 0.50 0.50 0.50 68 0.62 0.54 0.51 0.50 0.49 0.49 0.48 0.48 0.48 0.48 0.47 0.47 0.47 0.47 0.47 67 0.59 0.51 0.47 0.47 0.46 0.46 0.46 0.45 0.45 0.45 0.45 0.44 0.44 0.44 0.44 66 0.56 0.48 0.45 0.44 0.44 0.43 0.43 0.43 0.42 0.42 0.42 0.42 0.41 0.41 0.41 65 0.52 0.45 0.43 0.41 0.41 0.40 0.40 0.40 0.40 0.39 0.39 0.39 0.39 0.39 0.39 64 0.49 0.42 0.40 0.39 0.38 0.38 0.37 0.37 0.37 0.37 0.36 0.36 0.36 0.36 0.36 63 0.46 0.39 0.37 0.36 0.35 0.35 0.35 0.34 0.34 0.34 0.34 0.34 0.33 0.33 0.33 62 0.43 0.36 0.34 0.33 0.32 0.32 0.32 0.32 0.31 0.31 0.31 0.31 0.31 0.31 0.31 61 0.39 0.33 0.31 0.30 0.30 0.29 0.29 0.29 0.29 0.29 0.28 0.28 0.28 0.28 0.28 60 0.36 0.30 0.28 0.27 0.27 0.27 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.25 0.25 59 0.32 0.27 0.25 0.25 0.24 0.24 0.24 0.24 0.23 0.23 0.23 0.23 0.23 0.23 0.23 58 0.29 0.24 0.23 0.22 0.21 0.21 0.21 0.21 0.21 0.21 0.20 0.20 0.20 0.20 0.20 57 0.25 0.21 0.20 0.19 0.19 0.19 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 56 0.22 0.18 0.17 0.16 0.16 0.16 0.16 0.16 0.16 0.15 0.15 0.15 0.15 0.15 0.15 55 0.18 0.15 0.14 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 54 0.14 0.12 0.11 0.11 0.11 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 53 0.11 0.09 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 52 0.07 0.06 0.06 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 51 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.02 50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Note: For negative values of QU or QL, PU or PL is equal to 100 minus the table value for PU or PL. If the value of QU or QL does not correspond exactly to a figure in the table, use the next higher figure.
New Hampshire Department of Transportation Standard Specifications – 2016 Table 106-2 PAY FACTORS Required Quality Level for a Given Sample Size(n) and Given Pay Factor n= n= n= n= n= n= n= n= 10 12 15 19 26 38 70 201 Pay to to to to to to to To Fac- n= n= n= n= n= n= n= n= n= n= n= n= n= n= n= tor 3 4 5 6 7 8 9 11 14 18 25 37 69 200 X 1.05 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 1.04 90 91 92 93 93 93 94 94 95 95 96 96 96 97 99 1.03 80 85 87 88 89 90 91 91 92 93 93 94 95 96 97 1.02 75 80 83 85 86 87 88 88 89 90 91 92 93 94 95 1.01 71 77 80 82 84 85 85 86 87 88 89 90 91 93 94 1.00 68 74 78 80 81 82 83 84 85 86 87 89 90 91 93 0.99 66 72 75 77 79 80 81 82 83 85 86 87 88 90 92 0.98 64 70 73 75 77 78 79 80 81 83 84 85 87 88 90 0.97 62 68 71 74 75 77 78 78 80 81 83 84 85 87 89 0.96 60 66 69 72 73 75 76 77 78 80 81 83 84 86 88 0.95 59 64 68 70 72 73 74 75 77 78 80 81 83 85 87 0.94 57 63 66 68 70 72 73 74 75 77 78 80 81 83 86 0.93 56 61 65 67 69 70 71 72 74 75 77 78 80 82 84 0.92 55 60 63 65 67 69 70 71 72 74 75 77 79 81 83 0.91 53 58 62 64 66 67 68 69 71 73 74 76 78 80 82 0.90 52 57 60 63 64 66 67 68 70 71 73 75 76 79 81 0.89 51 55 59 61 63 64 66 67 68 70 72 73 75 77 80 0.88 50 54 57 60 62 63 64 65 67 69 70 72 74 76 79 0.87 48 53 56 58 60 62 63 64 66 67 69 71 73 75 78 0.86 47 51 55 57 59 60 62 63 64 66 68 70 72 74 77 0.85 46 50 53 56 58 59 60 61 63 65 67 69 71 73 76 0.84 45 49 52 55 56 58 59 60 62 64 65 67 69 72 75 0.83 44 48 51 53 55 57 58 59 61 63 64 66 68 71 74 0.82 42 46 50 52 54 55 57 58 60 61 63 65 67 70 72 0.81 41 45 48 51 53 54 56 57 58 60 62 64 66 69 71 0.80 40 44 47 50 52 53 54 55 57 59 61 63 65 67 70 0.79 38 43 46 48 50 52 53 54 56 58 60 62 64 66 69 0.78 37 41 45 47 49 51 52 53 55 57 59 61 63 65 68 0.77 36 40 43 46 48 50 51 52 54 56 57 60 62 64 67 0.76 34 39 42 45 47 48 50 51 53 55 56 58 61 63 66 0.75 33 38 41 44 46 47 49 50 51 53 55 57 59 62 65 NOTE: To obtain a given pay factor, the computed Quality Level shall equal or exceed the value in the table. Delete Pay Factor rows more than 1.0 where quality incentives are not allowed.
106.04Certification of Compliance
The Contractor shall provide a Certificate of Compliance for all materials that are to be permanently inc orporated into the Work for which there is no prescribed schedule of acceptance testing by the Engineer. If more than one product is used for t he same purpose, a Certificate of Compliance shall be submitted for each product. Certificates of Compliance shall be submitted on the form shown below. Certificates will also be required for temporary, safety-related items, such as guardrail, impact attenuators, traffic control devices, and pavement m arkings. No payment will be made for any item until the required certificates have been received. The certificate shall show the following:
New Hampshire Department of Transportation Standard Specifications – 2016
Specification.
provided. Certificates of Compliance may be submitted, by the manufacturer, the supplier, or the Contractor . The required Certificate of Compliance form may be obtained online at the Department’s Website or from the Engineer. In all cases, the Contractor shall fill out the project- related location information at the bottom of the form for products listed on the Qualified Products List. The originator of the certificate must maintain all documentation for said certificates for a period of not less than three years from the date the project has been completed and accepted. Certificates of Compliance covering more than one type of material or item will be acceptable if a listing is made of the item number, name of item, manufacturer, or supplier or both for each material covered. Materials or assemblies used on the basis of Certificates of Compliance may be s ampled and tested by the Department and if determined not to meet Contract requirements will be rejected or accepted under 105.03. All work done to replace or repair defective material shall be at the Contractor ’s expense. This provision shall remain in force for a period of three years from the date of Acceptance. The following is a list of materials that require Certificates of Compliance. This list is not all- inclusive, as certain special materials not commonly used on all projects will also require certificates. Bearing Assemblies Bearing Pads Bearing Piles and Permanent Sheeting Bounds (Concrete and Granite) Bridge Elastomeric Expansion Devices Bridge Railing and Hardware Castings of Grates, Frames and Covers Concrete Curing, Waterproofing, Sealing Agents and Admixtures Conduits and Pull Boxes Culverts, Underdrains, Structural Plate Pipe and Structural Plate Arches Delineators Drainage/Sewer Structures Fence Materials consisting of Posts, Fabric and Hardware Geotextiles Guardrail consisting of Beam Rail, Posts and Fittings Impact Attenuators Joint Sealants Light Pole Bases Liquid Asphalt Materials Luminaries and Supports Matting for Erosion Control Membrane Waterproofing Paint for Structural Steel Pavement Fabrics Pavement Markings consisting of Tapes, Thermoplastics, Markers and Paints Permanent/Temporary Lighting Systems Pipe and Accessories for Water, Sewer and Drainage Reinforcing Steel Shear Connectors Sign Materials consisting of Posts, Trusses, Fasteners, Sheeting and Panels Structural Steel Traffic Control Devices Traffic Signals and Equipment Waterstops Witness Markers Supplementing the above certificates, when specified or upon request, the Engineer shall be furnished with a copy of the manufacturer’s certificate of materials showing the phys ical properties, chemical composition, methods of testing, and other relevant data. Products that have been prequalified by Materials and Research and are included on the Qualified Products List (QPL) may be used on projects without further testing, unless otherwise noted on the QPL, but a Certificate of Compliance for the qualified products will be required. The QPL is updated annually, or more frequently if warranted, and is available online at the Department’s Website. A product that is not listed will not be used until qualified through a written request to Materials and Research. Such request should be made with sufficient lead-time to allow necessary testing or research.
106.05Plant Inspection
The Engineer may inspect materials at the acquisition or manufacturing source. Manufacturing plants may be inspected for compliance with specified manufacturing methods. Material samples will be obtained for testing for compliance with materials quality requirements. This may be the basis for acceptance of manufactured lots as to quality. In the event plant inspection is undertaken, the following conditions shall be met:
New Hampshire Department of Transportation Standard Specifications – 2016
the materials being furnished.
equipment and perform the required tests. The building shall be located convenientl y near the plant, and independent of any use by the material producer.
106.06Storage and Handling of Materials
Materials shall be stored, handled, and transported to preserve their quality and fitness for the Work. Materials shall be stored to facilitate prompt inspection and will be subject to inspection and retesting before incorporatio n in the Work in accordance with 106.03. Approved portions of the right-of-way may be used for storage of materials and the Contractor’s plant and equipment, provided that the clear zone restrictions specified in Section 619 are met. Clearing, grubbing, topsoil removal, and other preparation work or restoration for storage areas, if approved, shall be at the Contractor’s expense. Additional space required shall be provided at the Contractor ’s expense an d option. Private property shall not be used for storage purposes without written permission of the owner, or lessee and owner. Copies of such written permission shall be furnished to the Engineer and shall include proposed erosion control and site restoration measures. Storage and plant sites shall be restored to their original condition, or as directed, by and at the Contractor ’s expense. Erosion control measures, including dust control required for stockpiles of materials subject to wind or water erosion, shall be by and at the Contractor’s expense.
106.07Unacceptable Materials
Materials not meeting the requirements of the Contract will be considered unacceptable and will be rejected and shall be removed immediately from the project unless the defects are corrected and approved by the Engineer. Should the Contractor fail to remove defective materials within the time indicated by the Engineer in writing, the Engineer will have the materials removed at the Contractor’s expense.
106.08Department-Furnished Material
Material furnished by the Department will be delivered or made available to the Contractor at the locations specified in the Contract. The cost of handling and placing Department-furnished materials after delivery to the Contractor shall be included in the Item Bid Price for the item in which they are used. The Contractor is responsible for materials delivered. Deductions will be made from any money due the Contractor for any shortages, deficiencies, and damage that may occur to the material after delivery. Demurrage charges, resulting from the Contr actor’s failure to accept the material at the designated time and location of delivery, will also be deducted from money due the Contractor.
106.09Conservation of Gravel Deposits
The Contractor shall make all reasonable efforts to conserve gravel deposits. Unless specifically authorized, gravel shall not be utilized in making deep fills, backfilling swamps, or dressing slopes. Gravel deposits encountered in the excavation shal l be used in the several gravel items in the Contract when directed. Disposal of strippings, overburden, and unsuitable material shall be made in such a manner that usable gravel deposits will not be covered.
106.10Disposal of Surplus and Waste Materials
When practicable and whenever directed, surplus and waste material shall be disposed of by flattening slopes or for other grading within the project. When specified as embankment -in-place surplus or stockpile surplus, the m aterial shall be placed as shown on the Plans or as directed in the Proposal in accordance with the appropriate specification. In case it is impossible to dispose of all the surplus and waste material in the manner described above, it shall be the Contrac tor’s responsibility to secure disposal areas for surplus and waste materials. Disposal Agreements , as provided by the Department, for such areas must be submitted to the Engineer for approval. The Disposal Agreement form may be obtained on line at the Department’s Website or from the Engineer.
New Hampshire Department of Transportation Standard Specifications – 2016
107.01Laws to be Observed
The Contractor shall keep fully informed with, and observe and comply with all Federal and State l aws, all local laws and ordinances, and regulations, orders, and decrees of bodies or tribunals having any jurisdiction or authority, that affect individuals engaged or employed on the Project, or that affects the conduct of the Work on the Project. The C ontractor shall protect, defend, and indemnify the Department and its representatives against any claim or liability arising from or based on the violation of any such law, ordinance, regulation, order, or decree, whether by the Contractor, Subcontractor(s) at any tier, suppliers of materials or services, or others engaged by the Contractor, or their employees. The Engineer is to be notified immediately in writing if any discrep ancy or inconsistency is discovered between the Contract and any law, ordinance, regulation, order, or decree except as noted in 107.04. The Contractor’s attention is called to RSA 275:43, which provides for weekly payment to employees, and to RSA 235:37, which provides requirements relative to w orker’s compensation. The latter statute provides that the Commissioner of Transportation shall require every private Contractor engaged in construction or maintenance work by Contract with the State, a county, a city or town, on any State, State -aid, or town-aid highway or bridge project to file with the Commissioner of Labor and the Commissioner of Transportation of the State a declaration of acceptance of the provisions of RSA Chapter 281 -A, Worker’s Compensation, as amended, before any Work is begun on such project. Bulletin Board Requirements: The Contractor shall erect and maintain a bulletin board on which to post the notices, rates, and related items that are required to be posted. The board shall be a minimum of 4 foot by 8 foot in order to allow sufficient space, without overlapping, for both State and Federal poster/information, as required. Additional work classifications and their rates, requested by the Contractor and subsequently approved by the USDOL, shall also be posted. Bulletin boards shall be an enclosure and the posted documents shall be protected from the elements by glass or Plexiglas. Boards shall be erected on the site of work, be placed in a conspicuous and accessible location where it can be easily seen by all workers. If placing the bulletin board on the site of work is not feasible, either for safety reasons or due to the work taking place, the Contractor may recommend placing it in an adjacent location subject to NHDOT approval. If the NHDOT deems the alternate location as unsuitable (the location is too distant or will not be utilized by all Subcontractors, etc.), the NHDOT may instead require the use of employee bulletin board handouts in accordance with FHWA policy. Contractors have two options for posters: Option 1 - Using “ all-in-one” Federal and State posters; or Option 2 - Arranging posters in a predetermined manner as shown in the Proposal. The bulletin board shall remain the property of the Contractor and shall be removed upon completion of the Work. Except for Work done under items in the Contract, work prescribed in this section will not be paid for separately but will be considered as subsidiary. The Contractor’s attention is further called to RSA 281-A:18, which reads in part: “ 281-A:18 Contractor’s Liability for Subcontractors. A Contractor who subcontracts all or any part of a Contract shall bear the liability of the Subcontractor of that contract for the payment of compensation under this chapter to the employees of the Subcontractor, unless the Subcontractor has secured the payment of compensation as provided for in this chapter. Any Contractor who shall become liable for compensation under this section may recover the amount of the compensation paid and necessary expenses from the Subcontractor . ..” The Contractor’s attention is further called to RSA 266:72, which reads in part: “ 266:72 Spillage of Material.
its load from dropping, sifting, leaking or otherwise escaping therefrom, except that sand may be dropped for the purpose of securing traction, or water or other substance may be spri nkled on a way in cleaning or maintaining such way. II. No person shall operate on any way any vehicle with any load unless said load and any covering thereon is securely fastened so as to prevent said covering or load from becoming loose, detached, or in any manner a hazard to other users of the way. Without limiting the foregoing provision, no person shall drive on any way any open vehicle loaded with earth, sand, asphalt, stone, gravel, or other particulate substance unless said vehicle is equipped with and said load is entirely covered and secured by a tarpaulin or similar covering which prevents the escape of any substance from said load onto the way. II-a. No person shall operate on any way any open vehicle loaded with light scrap metal, unless the load is covered with and secured by a close -fitting tarpaulin which prevents the escape of any light scrap metal from the load onto the way. For the purposes of this paragraph “ light scrap metal'' means any fragments less than 8 ” wide and no more than 1/8” thick of manufactured metal articles or shredded metal parts rejected or discarded and useful only as material for reprocessing. The provisions of this paragraph shall not apply to truck operators transporting crushed vehicles to shredding facili ties or to transporters of heavy scrap metals to or from metal scrap dealers or remelting facilities.
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