Recommended locations for placement of different grade and types/shapes of manhole covers and frames are as under:
- LD-2.5 Rectangular, Square or Circular Solid Types Suitable for use within residential and institutional complexes/areas with pedestrian but occasional Light Motor Vehicle traffic. These covers are also used for ‘Inspection Chambers’
- MD-10 Circular or Rectangular Types Suitable for use in service lanes/roads, on pavements for use under medium-duty vehicular traffic including for car parking areas.
- HD-20 Circular, Square or Rectangular ( Scrapper Manhole ) Types Suitable for use in institutional/commercial areas, carriageways/city trunk roads/bus terminals, with heavy-duty vehicular traffic of wheel loads between 5 to 10 tonnes, like buses, trucks and parking areas and where the manhole chambers are located in-between the pavement and the middle of the road.
- EHD-35 Circular, Square or Rectangular ( Scrapper Manhole ) Types Suitable for use on carriageways in commercial/industrial/port areas/near warehouses/godowns/where frequent loading and unloading of trucks/trailers are common, With slow to fast moving vehicular traffic of the types having wheel loads up to 11.5 tonnes irrespective of the location of the manhole chambers.
|Everlast Gully Gratings |
|Applications ||Road Crossover gratings |
Road side gratings
Water Entrance gratings
Overflow gratings for
450 X 450
500 X 600
600 X 750
600 X 1200