Northern Alberta 1200mm Diameter Manhole Components
CSA A257.4 / A.S.T.M. C478 Design
MANHOLE COMPONENT
CITY OF EDMONTON STANDARDS 		WEIGHT ACTUAL DIMENSIONS
A B C
    mm mm mm
1200 mm base 680   150  
1200 mm x 1.22 m barrel 1535 1219   127
1200 mm x 0.81 m barrel 980 1219   127
1200 mm x 0.41 m barrel 500 1219   127
1200 mm x 0.30 m barrel 380 1219   127
1200 mm x 0.91 m cone 1235 1219    
1200 mm x slab top 590   100  
0.10 m grade ring 80   100  
0.075 m grade ring 60   75  
OTHER AVAILABLE STANDARDS   A B C
1200 mm x 0.65 m cone 1010 1219    
1200 mm T or K top 590   127  
0.15 m grade ring 120   150  
0.05 m grade ring 40   50  

Notes:
Cored opening prices on request. Prices for cast-in-floors available on request

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