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| Year | Peak Discharge (m³/s) | Water Level (m) | Flow Velocity (m/s) | Actions |
|---|---|---|---|---|
| Return Period (Years) | Reduced Variate (y) | Frequency Factor (K) | Design Discharge (m³/s) |
|---|---|---|---|
| 2 | - | - | - |
| 5 | - | - | - |
| 10 | - | - | - |
| 25 | - | - | - |
| 50 | - | - | - |
| 100 | - | - | - |
| 200 | - | - | - |
| 500 | - | - | - |
| 1000 | - | - | - |
d = 0.47 * (Q/f)^(1/3)
Where:
Design Discharge (Q): - m³/s
Silt Factor (f): -
Scour Depth (d): - m
d = 1.34 * (b^0.5)
Where:
Pier Width (b): - m
Scour Depth (d): - m
d = 2.0 * (b^0.65) * (D^0.35)
Where:
Pier Width (b): - m
Flow Depth (D): - m
Scour Depth (d): - m
d = 2.0 * K1 * K2 * K3 * (b^0.65) * (D^0.35)
Where:
Pier Shape Factor (K1): -
Angle of Attack Factor (K2): -
Bed Condition Factor (K3): -
Pier Width (b): - m
Flow Depth (D): - m
Scour Depth (d): - m
d = 1.5 * b^0.75
Where:
Pier Width (b): - m
Scour Depth (d): - m
d = 1.25 * b^0.72 * D^0.28
Where:
Pier Width (b): - m
Flow Depth (D): - m
Scour Depth (d): - m
d = 2.1 * (b/D)^0.25 * D
Where:
Pier Width (b): - m
Flow Depth (D): - m
Scour Depth (d): - m
d = 0.32 * (b/D)^0.62 * (Fr)^0.2 * D
Where:
Pier Width (b): - m
Flow Depth (D): - m
Froude Number (Fr): -
Scour Depth (d): - m
Maximum Calculated Scour Depth: - m
With Safety Factor: - m
Recommended Foundation Depth: - m
| Reference | Details | Actions |
|---|---|---|
| IRC:5-2015 | Standard Specifications and Code of Practice for Road Bridges, Section: I - General Features of Design | |
| IRC:89-1997 | Guidelines for Design and Construction of River Training and Control Works for Road Bridges | |
| HEC-18 | Evaluating Scour at Bridges, Federal Highway Administration |
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