Manholes
Riverside Steel’s Manholes are designed with strength and functionality in mind. All the skirts are made from 13 gauge steel with a one inch bottom leveling flange. They also feature anchoring clips and a reinforced diamond plate cover. They are H-20 load rated.
Standard Features
- Heavy duty 13 gauge steel skirt
- 9 inch tall assembly
- 1 inch bottom leveling flange
- Cement anchoring clips
- ½” x ½” reinforced top lip
- Lid removal finger hole
- H-20 load rated
Optional features include
- Recessed handle
- Access lids
- Lid hooks
- Height extensions
Nominal Size
(Inches) | A
Full Outer Diameter
(Inches) | B
Plate Diameter
(Inches) | C
Inner Diameter
(Inches) | Plate Thicknesses Available
(Inches) |
| 18 | 19-1/4 | 17-3/4 | 16 | 3/8 |
| 24 | 25-1/4 | 23-3/4 | 22 | 3/8 |
| 30 | 31-1/4 | 29-3/4 | 28 | 1/2 |
| 36 | 37-1/4 | 35-3/4 | 34 | 3/8 or 1/2 |
| 42 | 43-1/4 | 41-3/4 | 40 | 1/2 |
| 48 | 49-1/4 | 47-3/4 | 46 | 1/2 or 5/8 |
Standard height is 9 inches.
Custom sizes are available, please call for a details.