Velocipedestrienne 🇿🇦 on Nostr: When I used to do hydraulic design for bridges, the standard was to allow one foot of ...
When I used to do hydraulic design for bridges, the standard was to allow one foot of clearance between the top of the 100-year flood water and the bottom ("low chord") of the bridge. When you see flood pics and that's how the bridge is, then it's a design storm and anything underwater is known to be in the flood plain. When you see no clearance (pressure flow) or overtopping, you know it's a >100 year storm, much bigger than the infrastructure was designed for.
Published at
2024-10-04 14:57:21Event JSON
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"content": "When I used to do hydraulic design for bridges, the standard was to allow one foot of clearance between the top of the 100-year flood water and the bottom (\"low chord\") of the bridge. When you see flood pics and that's how the bridge is, then it's a design storm and anything underwater is known to be in the flood plain. When you see no clearance (pressure flow) or overtopping, you know it's a \u003e100 year storm, much bigger than the infrastructure was designed for.",
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