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�inforcement <br />Reinforced Lid <br />II Sections Wrapped w/ Non -Woven Geotextile Fabric, <br />revira 1114, Amoco 4545 or Equal Prior to Placement. <br />)ints to Have a 12" Overlap <br />Backfill - INDOT No. 8 Stone Aggregate <br />-ast Perforated Dry Well Section <br />INDOT No. 53 Composite <br />Aggregate for Undercut <br />1800 GALLON PRE -CAST PERFORATED DRYWELL <br />Scale: %"=1'-0" <br />DRYWELL NOTES: <br />1. All A layer of geotextile fabric, Propex 4545 by Amoco or approved equal shall be <br />placed between the drywell and the No. 8 aggregate and shall line the excavation. Any <br />fabric joints shall have an overlap of 18". The No. 8 aggregate, the geotechnical fabric <br />layers and the frame and grate to be included in the cost of the drywell. <br />2. To ensure proper infiltration into the soil, after installation of the drywells and <br />backfilling with the No. 8 aggregate, the contractor will surcharge each drywell with a <br />minimum of 3,000 gallons of water prior to any pavement placement. Surcharge water <br />shall be applied at a rate that will completely fill the drywell. <br />3. Where no casting is req'd. provide concrete removable lid for the 2' dia. opening. <br />4. In grass, an open grate casting shall be Neenah R-2561-A or approved equal. <br />5. In pavement, an open grate casting shall be Neenah R-2390, EJIW 1205, or approved <br />equal. <br />INDOT No. 53 Composit( <br />Applied to Top 4" for Lin <br />Nonwoven Geotextile Fa <br />@ 4 oz./syd for <br />Full Aggregate Wrap <br />Backfill INDOT No. 8 St( <br />'orated Storm Sewer Pipe <br />o. 53 Composite Aggregate <br />ind Grade <br />NOTES: <br />1. Overlap requirements between panels shall be 2' minimum <br />for either end to tend or side to side. <br />2. Aggregate backfill shall be mechanically tamped in 12" layers. <br />Hand backfilling will be used adjacent to areas of the <br />perforated pipe. <br />PERFORATED PIPE TRENCH AND BEDDING <br />Scale: 1" = 1'-0" <br />PERFORATED PIPE NOTES: <br />1. All bedding and initial backfill shall be installed in 4" to 6" balanced lifts and <br />mechanically tamped. <br />2. Bedding material shall be hand placed around the haunch and sides of the pipe to <br />ensure proper compaction and complete filling of all voids. <br />3. Back -fill - in streets, allys, sidewalks or driving areas: <br />a. 6" Layers, solidly tampered to sub -grade of street base. <br />b. Backfill will be granular material with less than 15% passing the No. 200 Sieve. <br />C. Backfill shall be compacted to 95% standard proctor. <br />4. Back -fill - in easement or open areas <br />a. 12" layers solidly tamped. <br />b. For backfill in easements or open areas native material will be acceptable. <br />5. This bedding detail shall be used for the installation of all flexible storm sewer pipe <br />materials. <br />LEGEND: <br />O165 #/sys HMA, Type "B", Surface on <br />275 #/sys HMA, Type "B", Intermediate on <br />6" Compacted Aggregate No. 53 on <br />Subgrade Treatment Type III <br />