The Deep Manhole Estimating Calculator calculates the Materials and Labour associated with the excavation and installation of deep manholes.
The Deep Manhole Estimating Calculator calculates the following items:
- Excavation of manhole and removal of spoil
- Provision of manhole base and fittings
- Manhole rings and fittings
- Manhole cover slab and cover
- Concrete surround
- Labour associated with construction of manhole
NOTE:
- The cost of the excavator and any other plant (other than spoil removal) should be included in the Drainage Plant Estimating Calculator which is concerned with the overall excavation of manholes and drain runs.
- Once dimensions have been defined for the size of the excavation, you must also check the size and number of manhole rings to provide the requisite manhole depth.
- This Estimating Calculator is NOT linked to the Specifications.