Pipe Crossing Elevation Checker
Compare service center elevations and estimate the geometric vertical separation between pipe envelopes. Diameter, clearance and assumptions remain visible.
Crossing inputs
Crossing elevation methodology
The first check is the vertical distance between service centerlines. For round pipe envelopes, half of each outside diameter can be subtracted from that separation to estimate surface-to-surface clearance.
Worked example
With centerlines 0.65 m apart, a 160 mm diameter service and a 110 mm diameter service give an approximate geometric clearance of 0.515 m.
Why this is only a screening check
Insulation, protection, bedding, carrier systems, actual pipe shape, tolerances and project requirements can materially change the usable separation. Use the calculated value as a geometric check, not an approval.
Frequently Asked Questions
Does this check pipe clearance?
It provides an approximate geometric clearance from entered center elevations and outside diameters.
Can the clearance be negative?
Yes. A negative result means the simplified circular envelopes overlap.
Does this approve a utility crossing?
No. Design and project requirements must still be checked.