Large Diameter Manholes

  • Applications:
    Highways, Railroads, Utility structures, Conduit, Improved Flow, Catch Basins, Curb Inlets, Junction Boxes, Customizable
  • Materials:
    Concrete: 4,000 PSI, Type I/II cement
    Reinforcement Per ASTM C-478
    Special Design for Depths great than 20’
  • Notes:
    Flexible Connectors are available
Description

RISER SECTION

BASE SECTION

ID

WT

BS

RS

LIP

MAX

MIN

VF TONS

MAX

MIN

SLAB TONS

60″

6″

8″

12″

5″

5′-0″

1′-0″

0.65

5′-6″

2′-0″

1.41

72″

7″

8″

12″

6″

6′-0″

1′-0″

0.91

6′-6″

3′-0″ **

2.02

84″

7″

8″

12″

7″

8′-0″

2′-0″ *

1.04

8′-6″

3′-0″ **

1.04

84″

8″

8″

12″

7″

N/A

N/A

N/A

7′-6″

3′-0″ **

2.73

96″

9″

8″

16″

7½”

8′-0″

2′-0″ *

1.55

8′-6″

3′-0″ **

3.54

120″

10″

16″

18″

4″

6′-0″

3′-0″ **

2.13

5′-0″

2′-0″

10.69

120″

11″

16″

18″

4″

8′-0″

3′-0″ **

2.36

7′-0″

2′-0″

11.00

144″

12″

18″

18″

6″

6′-0″

3′-0″ **

3.06

5′-0″

2′-0″

17.32