Ogee Spillway Designxls Better |verified| Jun 2026

| Feature | Why It Matters | | :--- | :--- | | | Change H_d (design head) and the entire X-Y curve rebuilds automatically. | | Rating Curve Generator | Outputs Q vs. H_w (headwater) for every 0.1m increment. | | Energy Dissipator Sizer | Links the spillway discharge directly to a stilling basin Type III or bucket radius. | | Hydraulic Jump Check | Auto-computes sequent depth and tailwater curve to see if your jump is submerged. | | Unit Conversion Lock | Because mixing meters and feet at 10,000 cfs is a lawsuit waiting to happen. |

In the world of dam design and hydraulic engineering, precision is non-negotiable. The ogee spillway—famed for its distinctive S-shaped profile that perfectly matches the lower nappe of a falling jet—remains the gold standard for overflow dams. However, designing this profile manually, with its reliance on complex coefficients (K & n), variable design heads (H_d), and slope parameters (P/H_d ratio), is a tedious and error-prone process. ogee spillway designxls better

Organize your Excel sheet into three distinct worksheets: | Feature | Why It Matters | |

The “better” version doesn’t stop at the crest shape. It integrates: | | Energy Dissipator Sizer | Links the

The standard ogee_spillway_design_v2.xls usually contains the following tabs:

For years, the industry standard has been some version of — a valiant, useful, but often clunky tool.