What is PMP Calculator?
Probable maximum precipitation estimates for dam safety and extreme-event design, including HRU-style classification workflows.
When would you use this?
- Dam safety studies that require PMP depth–duration–area inputs.
- Extreme storm checks beyond standard IDF tables.
How Delta Hydro Studio handles it
- Engineering-grade workflow tuned for professional dam-safety memos.
- Outputs structured for pairing with PMF routing tools.
How to use it
- 1
Define the site and storm duration range of interest.
- 2
Select the appropriate PMP estimation pathway for your region.
- 3
Review depth–duration–area results for consistency.
- 4
Export tables for your hydrology appendix.
Methodology & references
Full equations, assumptions, and literature references appear inside the in-app methodology panels for this tool, aligned with South African guidance (SANRAL TRH, SANCOLD, DWS technical manuals) and international references (USDA NRCS, FHWA HDS) where applicable.
Outputs & exports
Export professional Word and Excel report packs, tabulated results, and GIS-friendly layers depending on the tool. Screenshots in marketing materials are refreshed as the UI evolves — the studio always reflects the latest layout.
Ready to run PMP Calculator?
Free tier available — no credit card required to explore.