Maintenance Hole Box Chambers

Notes

  1. Designed in accordance with Canadian Highway Bridge Design Code (CHBDC) CAN/CSA-S6.
  2. Chamber depth and connecting pipe size will determine chamber size and wall thickness.
  3. Width size range in 300mm increments
  4. See page 45 for 1200mm tapered top details.
  5. Maintenance hole steps are circular hollow aluminum as per OPSD 405.010
  6. All dimensions are in millimeters unless otherwise shown.