La. Admin. Code tit. 70 § II-1909
Current through Register Vol. 50, No. 11, November 20, 2024
Section II-1909 - MaterialsA. The replacement pipe used in pipe bursting operations shall be High Density Polyethylene (HDPE) Pipe manufactured from a high density, high molecular weight polyethylene resin which conforms to ASTM D-1248 and meets the requirements for Type III, Class A, Grade P34, Category 5, and has a PPI rating of PE 3408, when compounded.B. The pipe produced from this resin shall have a minimum cell classification of 345434D or E (inner wall shall be light in color) under ASTM D3350.C. All pipe shall be made from virgin material. No reworked material shall be used except that obtained from the manufacturer's own production of the same formulation.D. Before commencement of work, the permittee shall submit to the DOTD for approval, the vendor's specific technical data with complete physical properties of pipe and pipe dimensions pertinent to the job.E. The Standard Dimension Ratio (SDR) Classification for various depths shall be as follows. 1. The Standard Dimension Ratio (SDR), which is the ratio of the outside diameter (OD) of the pipe to its minimum wall thickness, shall be specified for the various depths listed in Table I.2. The depth shall be measured from the upstream and downstream manhole rim to the invert of the existing sewer in the pipe segment to be replaced.3. The SDR shall be selected for the deeper of the two manholes for a given pipe segment. Table I |
Polyethylene Pipe SDR |
(Applicable SDR for Depth Range) |
HDPE Pipe SDR | Maximum Depth (Feet) |
21 | 10 |
17 | 20 |
La. Admin. Code tit. 70, § II-1909
Promulgated by the Department of Transportation and Development, Office of Highways/Engineering, LR 31:106 (January 2005).AUTHORITY NOTE: Promulgated in accordance with R.S. 48:381, et seq.