What is the maximum shoulder clearance on a manhole plate?

The maximum shoulder clearance on a manhole plate is typically specified to be 3/32". This dimension is crucial for ensuring proper sealing and structural integrity when the manhole cover is in place. A clearance that is too large could lead to instability or misalignment of the manhole cover, creating potential safety hazards or allowing debris to enter the utility access point. Maintaining the correct shoulder clearance helps facilitate the expected performance and longevity of the cover, ensuring it sits securely and performs its function effectively without any excessive movement or risk of failure.