4” Double Wall Manhole Shield (8×12)
These 4” Manhole Shields feature wrap-around end plates. These popular trench boxes increase pipe clearance and protection on the open ends of the trench.
Applications
- Pre-cast manholes
- Sewer & water valves
- Gas and electric utility structures
Specifications
| Model(Ft.) (Ht-Lg.) | 8x12 |
|---|---|
| Weight (lbs.) | 6,430 |
| Pipe CL (Inches) | 52 |
| Shield Capacity (PSF) | 1,320 |
| Depth of Cut (Ft.) Soil Type (B-45 (II)) | 29 |
| Depth of Cut (Ft.) Soil Type (C-60 (III)) | 22 |
| Depth of Cut (Ft.) Soil Type (C-80 (IV)) | 16 |