Aa Spec 1200le

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AA SPECIFICATION 1200LE

ISSUE 0ANGLO AMENDMENTS TO STANDARDIZEDSPECIFICATION FOR STORMWATER DRAINAGE(REFER ALSO TO SANS 1200 - SECTION LE 1982) COPYRIGHT

AA_SPEC_1200LE00.DOC APPROVED 5 JANUARY 2010 Page 1 of 3

For information or comments on this document please contact ATRAAnglo Technical accepts no liability for any damage whatsoever that may result from the use of this material or the information containedtherein, irrespective of the cause and quantum thereof.

NOTE: Where reference is made to any Clause or Subclause of this standardized specification andany other SANS 1200 standardized specification, the Clause or Subclause of the Anglo Amendment tothe standardized specification shall apply and shall take precedence over the said Clause or

Subclause of the SANS 1200 standardized specification.

2. INTERPRETATIONS

2.1 SUPPORTING SPECIFICATIONS

This Clause is amended to include the following:

"g) SANS 1200C - Site Clearance"

5. CONSTRUCTION

5.2 BEDDING AND LAYING

5.2.3 Concrete Casing of Pipelines

This Clause is amended to include:

"When placing concrete, it shall be placed from one side of the pipe only to ensure completefilling of the void beneath the pipe. Once this is achieved, placing may proceed from theopposite side of the pipe to the required dimensions."

5.2.5 Portal and Rectangular Culverts

c) Placing of upper portion

This Clause is amended to read:

"There shall be no gap called up between adjoining barrels of multi-barrel culverts."

5.3 CULVERT CONSTRUCTION BEFORE MAJOR EARTHFILL OPERATIONS


"Prefabricated culverts shall be constructed under trenched conditions unless specificallystated that embankment conditions shall apply.

Trenched conditions shall be defined as units that are laid in a trench excavated either belowexisting ground level, or in previously constructed subgrade and if necessary, subbase layers,the level of subgrade and subbase shall be made up to a height that will provide the minimumprescribed cover above the crown of the culvert."

5.5 CATCHPITS,MANHOLES,INLETS AND OUTLET STRUCTURES

5.5.5 Precast Manholes

This Clause is amended to read:

"All reference to Drawing LE - 1 shall be deleted."

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5.7 THE RAISING OR LOWERING OF EXISTING MANHOLES


"Each manhole cover and frame shall be removed from the chamber structure and the heightof the chamber walls altered as required. The cover and frame shall be reset on a minimum10mm bed of 1:2 cement mortar in such a manner that the top of the cover is flush with theadjacent finished compacted level of the sidewalk or road pavement. After the fittings havebeen reset, they shall be cleaned of deleterious matter and painted with bitumen on thesurfaces that will be in contact with any bituminous surfacing. Freshly prepared premixasphalt shall be hand tamped around them, if instructed. The finished tamping shall bedense, shall blend with the adjacent surfacing and shall present good riding qualities."

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APPENDIX A: RELATED DOCUMENTS

SANS 1200LE : Standardized Specification for Civil Engineering Construction Section LE:Stormwater Drainage

APPENDIX B: RECORD OF AMENDMENTS

Issue 0 : Based on AAC Spec 1200LE, Rev 0 (D Cameron, December 2009)

Aa Spec 1200le

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