Stamped Concrete Stormwater Pipe Repair Detail

I need a professionally stamped drawing that shows exactly how we will patch a puncture in an in-place concrete stormwater pipe from the outside, then protect that pipe during the last foot of excavation and when we pour the new slab overhead. Your stamp can be from either a licensed civil or structural engineer—whichever is more convenient for you—but it must be valid for permit submission in my jurisdiction. The drawing has three clear goals: • Detail the external patch repair for a concrete pipe, including material specs and any curing requirements. • Show temporary shielding or shoring that keeps the pipe safe while we remove the final <1 ft of cover soil. • Specify slab-on-grade reinforcement, bearing pads, or other means that maximise finished slab height yet prevent compressive loading on the pipe once the concrete is placed. I will provide site photos, pipe diameter, available cover, and slab design loads. Please return one PDF plan sheet (24 × 36) bearing your digital seal, plus the native CAD file so our GC can integrate it. If you foresee any field notes or installation instructions that inspectors will expect, fold them into the same sheet. Turnaround is time-sensitive because excavation is paused until we have your signed detail.