IS 4111 : Part 1 : 1986 Code of practice for ancillary structures in sewerage system: Part I Manholes

1 Scope

1.1 This standard covers types of manholes, designconsiderations for manholes and their construction and safetyrequirements.

1.2 This standard applies to manholes built for public sewersand does not cover manholes built specifically for buildingdrainage (see IS 1742 : 1983).

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 456 : 1978Code of practice for plain and reinforced concrete

IS 2180 : 1985Specification for heavy duty burnt clay building bricks

IS 2212 : 1962 Codeof practice for brickwork

IS 1742 : 1983 Codeof practice for building drainage

IS 3764 : 1966 Safetycode for excavation work

IS 5455 : 1969Specification for cast iron steps for manholes