382 SECTION 604 PIPE CULVERTS
604.1 -DESCRIPTION : This work shall consist of the construction or reconstruction of pipe culverts, in accordance with these Specifications and in reasonably close conformity with the lines, grades, dimensions, and locations shown on the plans or established by the Engineer.
604.2 -MATERIALS : Materials shall conform to the following requirements of Division 700, except as otherwise noted:
MATERIAL SUBSECTION Aluminum Structural Plate Box Culvert 713.18 Aluminum Coated Corrugated Steel Pipe and Pipe Arch 713.24 Bitumen Sealant 708.9 Controlled Low Strength Material (CLSM) 219 Crushed Aggregate 704.6, Class 1 or Class 3 End Section for Corrugated Steel Pipe, Safety Slope, or Pipe Arch 713.20 Concrete Safety Slope End Section for Elliptical or Round Pipe 714.8 Fine Aggregate 702.1.2 -702.1.5 and 702.2 or 702.6 Granular Material 716.1.1.2 High Density Polyethylene Pipe (HDPE), Profile Wall 714.19 High Density Polyethylene Pipe (HDPE), Steel -Reinforced 714.18 Polypropylene Pipe 714.17 Polyvinyl Chloride (PVC) Pipe 714.22 Precast Reinforced Concrete Box Culverts 714.7 Random Material 716.1.1 Reinforced Concrete Pipe 714.2
When the locations of manufacturing plants allow, the plants may be inspected periodically for compliance with specified manufacturing methods, and material samples may be obtained for laboratory testing for compliance with material quality requirements. This may be the basis for quality acceptance of manufactured lots. All materials will be subje ct to inspection for acceptance as to condition at the latest practicable time the Engineer has the opportunity to check for compliance prior to or during incorporation of materials in the work. All references to "corrugated steel pipe" are considered app licable to the paving classes (paved invert, full paved, etc.) for which the base metal conforms to AASHTO M 218 or AASHTO M 274.
383 604.2.1 -Quality Control Testing: Quality control of the granular material and crushed aggregate is the responsibility of the Contractor as specified in subsection 106.1. The Contractor shall maintain necessary equipment and qualified personnel to perform all sampling and testing necessary to determine the magnitude of the various properties of the material governed by the Specifications and shall maintain these properties within the limits of the Specifications. The Contractor shall submit a quality control plan detailing the methods by which the quality control program will be conducted. This plan, prepared in accordance with the guidelines set forth in the appropriate portions of MP 307.00.50 and MP 717.04.21, shall be submitted to the Engineer at the preconstruction conference. The work shall not begin until the plan is reviewed for conformance with the contr act documents.
604.2.2 -Acceptance Testing: Quality control sampling and testing performed by the Contractor may be used by the Division for Acceptance.
604.2.3 -Sampling and Testing: Frequency of sampling and testing shall be in accordance with the contractor’s quality control plan. The minimum sampling and testing frequencies for gradation shall be as indicated in Attachment 1 of MP 307.00.50. The material shall be sampled in accordance with MP 700.00.06. The minimum sampling and testing frequenc y for compaction will be in accordance with MP 717.04.21.
604.2.4 -Acceptance Plan: 604.2.4.1 -Compaction: Compaction of backfill material shall meet 604.8.
604.2.4.2 -Gradation: The material shall be sampled and tested in accordance with random samples from a lot. A sublot is the quantity of material represented by a single gradation test as defined in MP 700.00.06 . A lot shall be considered the quantity of material represented by an average test value, not to exceed five sublots. In the case where only one sample is needed for the total plan quantity, the sublot shall be considered the lot. The average shall star t on the second sample result. The average is continued for the third through fifth sample result, averaging all previous sample results. Thereafter, only the last consecutive five sample results will be averaged, i.e., second test value through sixth te st value, third test value through seventh test value, and so forth as defined in MP 300.00.51. When the test value of a lot and the test value of the last sublot, or when the last three consecutive individual test values of a lot fall outside the gradati on limits of Table 704.6.2A the lot of material represented will be considered nonconforming to the extent that the last of its sublots are nonconforming. When this occurs, the last sublot shall have its price adjusted in accordance with Table 604.14.1.
604.2.4.3 -Degree of Nonconformance: When a sublot of material is to have its price adjusted, the percentage point difference between the nonconforming test value and the specification limit shall be determined for each sieve size determined to be nonconf orming, and this value shall be multiplied by its appropriate multiplication factor as set forth in Table 604.2.4.3 .