Bridge elevation (Water Overlay)

Icon	Attribute	Unit	Range	Description	Default value
	BRIDGE_ELEVATION	nominal		Specifies the mode by which bridges are include in the elevation model, used for the water calculations.	Lowest

0.	Lowest: Lowest elevation point from Terrain below bridge is used.
1.	Terrain: Use standard elevation from Terrain. Bridges are excluded from the DEM, allowed water to flow as if they didn't exist.
2.	Bridge : Use bridge deck as elevation. Bridges and floating Constructions are included in the DEM, blocking water flow.

Notes

• When using Bridge mode, it is still possible to model the flow from one side of a bridge to the other by using a Culvert.

How-to's

• How to add and remove an Attribute

See also

• File:Bridges.jpg

  Explanation of how bridges are made water permeable in the Tygron Platform (Dutch only)

• File:Bridges.jpg

  Explanation how to deal with bridges and the elevation map in your water system. Tygron Platform (Dutch only)

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Model attributes

Allowed water increase m • Avg shore width m • Avg terrain width m • Avg terrain storage m • Breach measurement distance m • Bridge elevation • Culvert dem threshold m • Design flood elevation m • Ground bottom distance m • Ground bottom pressure m • Ground water • Ground water depth m • Ground watertable with surface • Impact flood threshold m • Impact range m • Increased resolution • Infiltration factor s

Limit area • Limit rain • Max infiltration m • Max water bottom m • Microrelief storage fraction • Min max elevation • Object entry correction • Prequel surface level relative • Rise rate distance m • Sewer overflow threshold • Shoreline • Duration min level m • Stabilizer angle • Start date ms • Surface water • Surface water evaporation factor • Timeframe times • Timeframes • Trim manning • Trim evapotranspiration • Trim root depth • Trim ground infiltration • Trim ground conductivity • Trim shoreline conductivity

Related

Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Results • Simulation data