spillway design

Professional Ogee Spillway Design Suite (USBR / CWC / IS)

Project Information

Project Name

Dam Name

River Name

Design Flood Type PMF SPF Design Flood

Hydraulic Inputs

Design Discharge Q (m³/s)

FRL (m)

MWL (m)

Tail Water RL (m)

Approach Velocity Va (m/s)

Discharge Coefficient C

Design Results

Ogee Profile Drawing

Profile Coordinates

Advanced Hydraulic Analysis

No. of Piers

Pier Shape Rounded Nose Square Nose Sharp Nose

Abutment Shape Rounded Square Wing Wall

Atmospheric Head (m)

Vapour Pressure Head (m)

Approach Flow Depth y1 (m)

Observed Tailwater Depth (m)

Bucket Lip Angle (deg)

Energy Dissipation Analysis

Hydraulic Jump Profile

Spillway Base Width B (m)

Spillway Height Hs (m)

Unit Weight of Concrete γc (kN/m³)

Unit Weight of Water γw (kN/m³)

Coefficient of Friction μ

Drain Efficiency (%)

Horizontal Seismic Coefficient αh

Vertical Seismic Coefficient αv

Structural Stability Analysis

Foundation Pressure Diagram

Concrete Grade (fck MPa) M20 M25 M30 M35 M40

Steel Grade (fy MPa) Fe415 Fe500 Fe550

Crest Slab Thickness (mm)

Crest Slab Span (m)

Design Load on Crest (kN/m²)

Clear Cover (mm)

Main Bar Diameter (mm)

Pier Thickness (m)

Pier Height (m)

Training Wall Height (m)

RCC Design Report

Reinforcement Layout

Anchor Bar Diameter (mm)

Anchor Steel Grade fy (MPa)

Drain Gallery Width (m)

Drain Gallery Height (m)

Expansion Joint Spacing (m)

Water Stop Width (mm)

Spillway Length (m)

Foundation Excavation Depth (m)

Advanced Structural Design

Quantity Takeoff & BOQ

Construction Details

Upstream Cutoff Depth (m)

Downstream Cutoff Depth (m)

Permeability k (m/s)

Safe Exit Gradient

Concrete Rate (₹/m³)

Steel Rate (₹/kg)

Excavation Rate (₹/m³)

Khosla Seepage Analysis

Project Cost Estimate

Design Conclusions

Seepage Pressure Diagram

Uplift Pressure Distribution