181-26 Exhibit A- Final Specifications_compressed.pdf

Do not use split couplings to join field-cut HDPE and polypropylene (PP) pipe unless approved by the RE. Ensure that joints are bell and spigot type, or bell and spigot type with a gasket, according to ASTM F 477, to provide a silt- tight seal. Construct pipe connections according to the manufacturer’s recommendations for assembly of joint components, lubrications, and making of joints. Ensure that the pipe fittings are free of inclusions and visible defects. Cut the ends of the pipe squarely so as not to adversely affect joining. F Backfilling. THE FIRST PARAGRAPH IN PART F IS CHANGED TO: When using corrugated aluminum pipe, backfill from the bottom of the trench to 2 feet above the top of the pipe with Class C bedding. When using HDPE and polypropylene (PP) pipe, backfill from the bottom of the trench to 1 foot above the top of the pipe with Class C bedding. When using pipe other than corrugated aluminum, HDPE or polypropylene (PP) pipe, backfill from the bottom of the trench to 2 feet above the top of the pipe with suitable excavated material free from stones and rock larger than 2 inches in any dimension. For distances 2 feet above the top of the pipe, backfill using suitable excavated material. 601.03.03 End Section THE SECOND PARAGRAPH IS CHANGED TO: Use end sections of the same material as the adjoining pipe or pipe arch, except use concrete end sections for HDPE and polypropylene (PP) pipe. 601.03.04 Underdrain A. Excavating. THE FOURTH PARAGRAPH IN PART A IS CHANGED TO: If the material at the bottom of the trench is rock or other hard material, remove at least 6 inches of the material for RCP or at least 12 inches of the material below the bottom of the pipe for corrugated metal, steel, aluminum alloy pipe, HDPE or polypropylene (PP). Backfill the undercut with Class C bedding. 601.03.06 Video Inspection of Pipe THE SECOND PARAGRAPH IS CHANGED TO: Perform the video inspection in dry pipe conditions to ensure viewing of the entire pipe circumference. Ensure that a visual numerical registration of the distance the video camera is traveling from the starting point to the ending point within the pipe drainage structure is recorded on the digital footage at all times. Also, ensure that the name of the pipe run and the name of the structure is recorded on the digital footage at all

t within the pipe drainage structure is recorded on the digital footage at all times. Also, ensure that the name of the pipe run and the name of the structure is recorded on the digital footage at all times. Stop the video camera at all joints, lateral connections, breaks, and irregularities to ensure full view at these locations. Ensure that the video provides clear, sharply focused pictures. The Department will not accept blurred or out of focus footage. Submit color digital footage of the inspection to the RE to become the property of the Department. Number the files sequentially and provide a corresponding index for all videos, listing the location, date, size and type of pipe, cross or longitudinal drains, berm, slope, and similar identifying information. THE FOLLOWING SUBSECTION IS ADDED: 601.03.09 Non-Standard Items CURB DRAIN CONNECTION, INCLUDING CLEANOUT The pay item for CURB DRAIN CONNECTION, INCLUDING CLEANOUT shall be constructed in accordance with all appliable construction methods of this section. Additionally, the pay item shall include all labor necessary to tie in existing curb inlet drains to existing or proposed storm drains in accordance with the plans or as directed in the field. HELEN AVE., LAWRENCE AVE., FLORENCE PL., AND LOWELL AVE., IMPROVEMENTS PROJECT Page 52 of 76