Rainfall Overlay tutorial - Revision history

Frank@tygron.nl at 14:41, 6 March 2026

2026-03-06T14:41:26Z

← Older revision		Revision as of 14:41, 6 March 2026
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	Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].		Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].
	The attributes you can change in this step are:		The attributes you can change in this step are:
	* [[~~Max~~ water depth m (Water Overlay)\| ~~Max~~ water depth attribute]]		* [[Ground water depth m (Water Overlay)\| Ground water depth attribute]]
	* [[Max water bottom m (Water Overlay)\| Max water bottom attribute]]		* [[Max water bottom m (Water Overlay)\| Max water bottom attribute]]
	* [[Object correction (Water Overlay)\| Object correction attribute]]		* [[Object correction (Water Overlay)\| Object correction attribute]]

Frank@tygron.nl at 14:40, 6 March 2026

2026-03-06T14:40:09Z

← Older revision		Revision as of 14:40, 6 March 2026
Line 189:		Line 189:
	Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].		Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].
	The attributes you can change in this step are:		The attributes you can change in this step are:
	* [[~~Max_water_depth_m_~~(~~Water_Overlay~~)\| Max water depth attribute]]		* [[Max water depth m (Water Overlay)\| Max water depth attribute]]
	* [[~~Max_water_bottom_m_~~(~~Water_Overlay~~)\| Max water bottom attribute]]		* [[Max water bottom m (Water Overlay)\| Max water bottom attribute]]
	* [[ ~~Object_correction_~~(~~Water_Overlay~~)\| Object correction attribute]]		* [[Object correction (Water Overlay)\| Object correction attribute]]
	* [[Shoreline_(Water_Overlay)\| Shoreline attribute]]		* [[Shoreline_(Water_Overlay)\| Shoreline attribute]]
	Read the above Wiki pages, but keep the default values.		Read the above Wiki pages, but keep the default values.

Frank@tygron.nl at 15:07, 26 January 2024

2024-01-26T15:07:23Z

← Older revision		Revision as of 15:07, 26 January 2024
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	===Step 3: setup of coefficients===		===Step 3: setup of coefficients===
	In this step you can adjust default parameters related to the [[Surface_model_(Water_Overlay)\|surface]] (e.g. roughness), [[~~Underground_model_~~(Water_Overlay)\|sub-surface]] (e.g. conductivity) and infrastructure (e.g. is a type connected to a sewer or not). As we work with a [[project]] containing a lot of data, the determination of model-coefficients can be complex. E.g.:		In this step you can adjust default parameters related to the [[Surface_model_(Water_Overlay)\|surface]] (e.g. roughness), [[Ground_model_(Water_Overlay)\|sub-surface]] (e.g. conductivity) and infrastructure (e.g. is a type connected to a sewer or not). As we work with a [[project]] containing a lot of data, the determination of model-coefficients can be complex. E.g.:
	* A [[Water_manning_(Water_Overlay)\|manning roughness coefficient]] can be related to the surface type (e.g. clay) if no infrastructure present. If infrastructure is present (e.g. a road), the value of the road will be used, and the value of the surface type will be ignored		* A [[Water_manning_(Water_Overlay)\|manning roughness coefficient]] can be related to the surface type (e.g. clay) if no infrastructure present. If infrastructure is present (e.g. a road), the value of the road will be used, and the value of the surface type will be ignored
	* An [[Terrain_ground_infiltration_md_(Water_Overlay)\|infiltration]] parameter can be related to the surface (land cover), [[Ground_infiltration_per_day_(Function_Value)\|infrastructure]] or ~~underground~~ (sub-surface).		* An [[Terrain_ground_infiltration_md_(Water_Overlay)\|infiltration]] parameter can be related to the surface (land cover), [[Ground_infiltration_per_day_(Function_Value)\|infrastructure]] or the ground (sub-surface).
	You can inspect each of the parameters by hovering or clicking on the question mark icon next to the parameter. We will leave everything to default by pressing next (4x)		You can inspect each of the parameters by hovering or clicking on the question mark icon next to the parameter. We will leave everything to default by pressing next (4x)
	<br>		<br>

Frank@tygron.nl at 13:42, 20 February 2023

2023-02-20T13:42:06Z

← Older revision		Revision as of 13:42, 20 February 2023
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	[[File:Results_kockengen.JPG\|500px]]		[[File:Results_kockengen.JPG\|500px]]
	<br>		<br>
	* Play the overlay by clicking on the arrows in the bottom left corner of the [[~~User Interface~~]]. Can you explain what happens?		* Play the overlay by clicking on the arrows in the bottom left corner of the [[Viewer ]]interface. Can you explain what happens?
	* Click in the left panel on the other overlays. Can you explain the results? Notice the [[Base_types_result_type_(Water_Overlay)\|base types]] result. This result type shows input used for the model. As you can see the division in land, water and constructions is very rough. This is related to the [[grid cell size]]. In the General Tab you can press ''Change Grid'' to change the [[grid cell size]] to for example 2m. Can you see the difference, and see the impact on the [[Surface_last_value_result_type_(Water_Overlay)\|surface last value]], timesteps and calculation time?		* Click in the left panel on the other overlays. Can you explain the results? Notice the [[Base_types_result_type_(Water_Overlay)\|base types]] result. This result type shows input used for the model. As you can see the division in land, water and constructions is very rough. This is related to the [[grid cell size]]. In the General Tab you can press ''Change Grid'' to change the [[grid cell size]] to for example 2m. Can you see the difference, and see the impact on the [[Surface_last_value_result_type_(Water_Overlay)\|surface last value]], timesteps and calculation time?
	* Open the Rainfall Wizard again and click on the culverts step. Notice there are less errors with the culverts by changing the grid cell size. Can you now follow the error messages that were previously given?		* Open the Rainfall Wizard again and click on the culverts step. Notice there are less errors with the culverts by changing the grid cell size. Can you now follow the error messages that were previously given?

Frank@tygron.nl at 14:12, 30 January 2023

2023-01-30T14:12:19Z

Rudolf@tygron.nl at 09:57, 30 May 2022

2022-05-30T09:57:49Z

← Older revision		Revision as of 09:57, 30 May 2022
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			{{tutorial prerequisites
			\| tutorial=This tutorial relies on base knowledge about the editor interface.
			\| project=This tutorial relies on a specific Demo project.
			\| Open the {{software}} (the [[Roadmap#engine.tygron.com_.28Long_Term_Support.29\|LTS server]]), logon with your user name and password and open the project ''Tutorial Kockengen''
			\| Download and unpack the content of this zip-file on your desktop: [//support.tygron.com/w/downloads/tutorial/kockengen_data.zip kockengen_data.zip]
			}}

			==Introduction to the Rain Overlay==
	In this tutorial we will configure a [[Rainfall_(Overlay)\|rainfall overlay]]. After this tutorial, you will be able to configure a [[Rainfall_(Overlay)\|rainfall overlay]] by making use of the [[Water_Overlay_Wizard\|configuration wizard]] and have learnt what kind of data is used as input for the [[Water_Module_Theory\|water module]].		In this tutorial we will configure a [[Rainfall_(Overlay)\|rainfall overlay]]. After this tutorial, you will be able to configure a [[Rainfall_(Overlay)\|rainfall overlay]] by making use of the [[Water_Overlay_Wizard\|configuration wizard]] and have learnt what kind of data is used as input for the [[Water_Module_Theory\|water module]].

	~~==Getting Started==~~
	~~# Open the {{software}} (the [[Roadmap#engine.tygron.com_.28Long_Term_Support.29\|LTS server]]), logon with your user name and password and open the project ''Tutorial Kockengen''~~
	~~# Download and unpack the content of this zip-file on your desktop: [//support.tygron.com/w/downloads/tutorial/kockengen_data.zip kockengen_data.zip]~~


	[[File:Kockengen_figure01.PNG\|800px]]		[[File:Kockengen_figure01.PNG\|800px]]

Frank@tygron.nl at 12:29, 17 January 2022

2022-01-17T12:29:08Z

← Older revision		Revision as of 12:29, 17 January 2022
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	* Below there is a summary, the [[Debug info (Water Overlay)\|debug info]], please explore.		* Below there is a summary, the [[Debug info (Water Overlay)\|debug info]], please explore.
	* In the General Tab, you can specify the [[Calculation_preference_formula_(Water_Overlay)\|Calculation Preferences]].		* In the General Tab, you can specify the [[Calculation_preference_formula_(Water_Overlay)\|Calculation Preferences]].
	* In the General Tab you can [[Geo_Data#Export_raster_data\|export the result]] as a [[~~GeoTiff~~]]. Please do so and visualize your result in a GIS, for example QGIS.		* In the General Tab you can [[Geo_Data#Export_raster_data\|export the result]] as a [[GeoTIFF]]. Please do so and visualize your result in a GIS, for example QGIS.
	* In the General Tab, click on ''Save overlay result''. Notice what happens: an inactive copy of the result type is created in the overlay left panel. This inactive copy can be used to store results, from for example a specific rain event, and compare it later with another result type of another rain event.		* In the General Tab, click on ''Save overlay result''. Notice what happens: an inactive copy of the result type is created in the overlay left panel. This inactive copy can be used to store results, from for example a specific rain event, and compare it later with another result type of another rain event.
	* In the General Tab, [[Warnings (Water Overlay)\|warnings]] may also appear, for example about the accuracy of the model in relation to the grid cell size.		* In the General Tab, [[Warnings (Water Overlay)\|warnings]] may also appear, for example about the accuracy of the model in relation to the grid cell size.

Frank@tygron.nl: /* Step 2.6: adding hydraulic structures */

2021-05-28T13:24:16Z

Step 2.6: adding hydraulic structures

← Older revision		Revision as of 13:24, 28 May 2021
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	In this Tutorial, choose the default option (''Do Nothing)''.		In this Tutorial, choose the default option (''Do Nothing)''.

	====Step 2.6: adding hydraulic structures====		====Step 2.5: adding hydraulic structures====
	In the [[Water_Overlay_Wizard\|configuration wizard]] it is possible to import the following hydraulic structures:		In the [[Water_Overlay_Wizard\|configuration wizard]] it is possible to import the following hydraulic structures:
	* [[Weir_(Water_Overlay)\|Weirs]]		* [[Weir_(Water_Overlay)\|Weirs]]
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	* [[Sewer_overflow_(Water_Overlay)\|Sewer overflows]]		* [[Sewer_overflow_(Water_Overlay)\|Sewer overflows]]

	=====2.6.1 Adding weirs=====		=====2.5.1 Adding weirs=====
	You can upload weirs.geojson by selecting Import Weirs in the Weirs screen and pressing Import Weirs. We will import weirs.geojson, using the following attributes:[[File:Kockengen_figure10.PNG\|thumb\|250px\|right]]		You can upload weirs.geojson by selecting Import Weirs in the Weirs screen and pressing Import Weirs. We will import weirs.geojson, using the following attributes:[[File:Kockengen_figure10.PNG\|thumb\|250px\|right]]
	* NAME: the name of the weir		* NAME: the name of the weir
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	[[File:Rainfall_weirs_updated.JPG\|500px]]		[[File:Rainfall_weirs_updated.JPG\|500px]]

	=====2.6.2 Culverts=====		=====2.5.2 Culverts=====
	Click next to proceed to the step for importing culverts. Notice that there are already culverts imported. On the [[Project_Sources\|project sources]] page you can read where this data comes from (last entry in the table). Select some culverts from the drop down menu and click on Show in Editor to see where they are located in the 3D world. Since from the open dataset not all attributes are known, for example the [[Culvert_diameter_(Water_Overlay)\|culvert diameter]] is by default set to 1m. Notice that there are some errors. These culverts are marked red in the drop down menu and also the step itself is marked red. Read some of the error messages given when selecting a marked red culvert in the drop down menu and proceed with the next step.		Click next to proceed to the step for importing culverts. Notice that there are already culverts imported. On the [[Project_Sources\|project sources]] page you can read where this data comes from (last entry in the table). Select some culverts from the drop down menu and click on Show in Editor to see where they are located in the 3D world. Since from the open dataset not all attributes are known, for example the [[Culvert_diameter_(Water_Overlay)\|culvert diameter]] is by default set to 1m. Notice that there are some errors. These culverts are marked red in the drop down menu and also the step itself is marked red. Read some of the error messages given when selecting a marked red culvert in the drop down menu and proceed with the next step.

	[[File:Culverts.JPG\|500px]]		[[File:Culverts.JPG\|500px]]

	=====2.6.3-5 Pumps, Inlets and Drainages=====		=====2.5.3-5 Pumps, Inlets and Drainages=====
	Similar to the import procedure of weirs, you can add pumps, inlets and outlets and drainages. In this tutorial, choose the default (''Do Nothing'').		Similar to the import procedure of weirs, you can add pumps, inlets and outlets and drainages. In this tutorial, choose the default (''Do Nothing'').

	=====2.6.6 Adding Overflows=====		=====2.5.6 Adding Overflows=====
	In this step we will add the [[Sewer_overflow_(Water_Overlay)\|sewer overflow]]. Upload the overflows.geojson by selecting Import Overflows in the Wizard. We will import overflow.geojson, using the following attributes:		In this step we will add the [[Sewer_overflow_(Water_Overlay)\|sewer overflow]]. Upload the overflows.geojson by selecting Import Overflows in the Wizard. We will import overflow.geojson, using the following attributes:
	* LEVEL: the [[Sewer_overflow_attribute_(Water_Overlay)\|crest level of the overflow]]; assign to the SEWER_OVERFLOW overlay key		* LEVEL: the [[Sewer_overflow_attribute_(Water_Overlay)\|crest level of the overflow]]; assign to the SEWER_OVERFLOW overlay key

Frank@tygron.nl: /* Step 2.5: adding hydraulic structures */

2021-05-28T13:23:48Z

Step 2.5: adding hydraulic structures

← Older revision		Revision as of 13:23, 28 May 2021
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	In this Tutorial, choose the default option (''Do Nothing)''.		In this Tutorial, choose the default option (''Do Nothing)''.

	====Step 2.5: adding hydraulic structures====		====Step 2.6: adding hydraulic structures====
	In the [[Water_Overlay_Wizard\|configuration wizard]] it is possible to import the following hydraulic structures:		In the [[Water_Overlay_Wizard\|configuration wizard]] it is possible to import the following hydraulic structures:
	* [[Weir_(Water_Overlay)\|Weirs]]		* [[Weir_(Water_Overlay)\|Weirs]]

Frank@tygron.nl: /* 2.5.1 adding weirs */

2021-05-28T13:23:33Z

2.5.1 adding weirs

← Older revision		Revision as of 13:23, 28 May 2021
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	* [[Sewer_overflow_(Water_Overlay)\|Sewer overflows]]		* [[Sewer_overflow_(Water_Overlay)\|Sewer overflows]]

	=====2.5.1 ~~adding~~ weirs=====		=====2.6.1 Adding weirs=====
	You can upload weirs.geojson by selecting Import Weirs in the Weirs screen and pressing Import Weirs. We will import weirs.geojson, using the following attributes:[[File:Kockengen_figure10.PNG\|thumb\|250px\|right]]		You can upload weirs.geojson by selecting Import Weirs in the Weirs screen and pressing Import Weirs. We will import weirs.geojson, using the following attributes:[[File:Kockengen_figure10.PNG\|thumb\|250px\|right]]
	* NAME: the name of the weir		* NAME: the name of the weir

← Older revision		Revision as of 14:41, 6 March 2026
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	Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].		Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].
	The attributes you can change in this step are:		The attributes you can change in this step are:
	* [[~~Max~~ water depth m (Water Overlay)\| ~~Max~~ water depth attribute]]		* [[Ground water depth m (Water Overlay)\| Ground water depth attribute]]
	* [[Max water bottom m (Water Overlay)\| Max water bottom attribute]]		* [[Max water bottom m (Water Overlay)\| Max water bottom attribute]]
	* [[Object correction (Water Overlay)\| Object correction attribute]]		* [[Object correction (Water Overlay)\| Object correction attribute]]

← Older revision		Revision as of 14:40, 6 March 2026
Line 189:		Line 189:
	Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].		Here you can change some [[Model_attributes_(Water_Overlay)\|model attributes]] for the [[Rainfall_(Overlay)\|rainfall overlay]].
	The attributes you can change in this step are:		The attributes you can change in this step are:
	* [[~~Max_water_depth_m_~~(~~Water_Overlay~~)\| Max water depth attribute]]		* [[Max water depth m (Water Overlay)\| Max water depth attribute]]
	* [[~~Max_water_bottom_m_~~(~~Water_Overlay~~)\| Max water bottom attribute]]		* [[Max water bottom m (Water Overlay)\| Max water bottom attribute]]
	* [[ ~~Object_correction_~~(~~Water_Overlay~~)\| Object correction attribute]]		* [[Object correction (Water Overlay)\| Object correction attribute]]
	* [[Shoreline_(Water_Overlay)\| Shoreline attribute]]		* [[Shoreline_(Water_Overlay)\| Shoreline attribute]]
	Read the above Wiki pages, but keep the default values.		Read the above Wiki pages, but keep the default values.

← Older revision		Revision as of 12:29, 17 January 2022
Line 211:		Line 211:
	* Below there is a summary, the [[Debug info (Water Overlay)\|debug info]], please explore.		* Below there is a summary, the [[Debug info (Water Overlay)\|debug info]], please explore.
	* In the General Tab, you can specify the [[Calculation_preference_formula_(Water_Overlay)\|Calculation Preferences]].		* In the General Tab, you can specify the [[Calculation_preference_formula_(Water_Overlay)\|Calculation Preferences]].
	* In the General Tab you can [[Geo_Data#Export_raster_data\|export the result]] as a [[~~GeoTiff~~]]. Please do so and visualize your result in a GIS, for example QGIS.		* In the General Tab you can [[Geo_Data#Export_raster_data\|export the result]] as a [[GeoTIFF]]. Please do so and visualize your result in a GIS, for example QGIS.
	* In the General Tab, click on ''Save overlay result''. Notice what happens: an inactive copy of the result type is created in the overlay left panel. This inactive copy can be used to store results, from for example a specific rain event, and compare it later with another result type of another rain event.		* In the General Tab, click on ''Save overlay result''. Notice what happens: an inactive copy of the result type is created in the overlay left panel. This inactive copy can be used to store results, from for example a specific rain event, and compare it later with another result type of another rain event.
	* In the General Tab, [[Warnings (Water Overlay)\|warnings]] may also appear, for example about the accuracy of the model in relation to the grid cell size.		* In the General Tab, [[Warnings (Water Overlay)\|warnings]] may also appear, for example about the accuracy of the model in relation to the grid cell size.

← Older revision		Revision as of 14:12, 30 January 2023
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	# Select the Rainfall overlay in the left side panel and take a moment to familiarize yourself with the tabs in the right panel: General, Keys, Legend and Attributes		# Select the Rainfall overlay in the left side panel and take a moment to familiarize yourself with the tabs in the right panel: General, Keys, Legend and Attributes
	#* General contains the most common information necessary to interpret the rainfall overlay.		#* General contains the most common information necessary to interpret the rainfall overlay.
	#* In ~~Keys~~ you can relate settings for the Rainfall overlay to attribute information stored in ~~the 3D world~~.		#* In [[Key]]s you can relate settings for the Rainfall overlay to attribute information stored in [[Building]]'s and [[Area]]'s.
	#* Legend allows you to customize your legend		#* Legend allows you to customize your legend
	#* Attributes contains the general settings of the Rainfall overlay.		#* Attributes contains the general settings of the Rainfall overlay.
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	=====2.5.2 Culverts=====		=====2.5.2 Culverts=====
	Click next to proceed to the step for importing culverts. Notice that there are already culverts imported. On the [[Project_Sources\|project sources]] page you can read where this data comes from (last entry in the table). Select some culverts from the drop down menu and click on Show in Editor to see where they are located in the ~~3D world~~. Since from the open dataset not all attributes are known, for example the [[Culvert_diameter_(Water_Overlay)\|culvert diameter]] is by default set to 1m. Notice that there are some errors. These culverts are marked red in the drop down menu and also the step itself is marked red. Read some of the error messages given when selecting a marked red culvert in the drop down menu and proceed with the next step.		Click next to proceed to the step for importing culverts. Notice that there are already culverts imported. On the [[Project_Sources\|project sources]] page you can read where this data comes from (last entry in the table). Select some culverts from the drop down menu and click on Show in Editor to see where they are located in the [[project area]]. Since from the open dataset not all attributes are known, for example the [[Culvert_diameter_(Water_Overlay)\|culvert diameter]] is by default set to 1m. Notice that there are some errors. These culverts are marked red in the drop down menu and also the step itself is marked red. Read some of the error messages given when selecting a marked red culvert in the drop down menu and proceed with the next step.

	[[File:Culverts.JPG\|500px]]		[[File:Culverts.JPG\|500px]]
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	===Step 3: setup of coefficients===		===Step 3: setup of coefficients===
	In this step you can adjust default parameters related to the [[Surface_model_(Water_Overlay)\|surface]] (e.g. roughness), [[Underground_model_(Water_Overlay)\|sub-surface]] (e.g. conductivity) and infrastructure (e.g. is a type connected to a sewer or not). As we work with a ~~3D world~~ containing a lot of data, the determination of model-coefficients can be complex. E.g.:		In this step you can adjust default parameters related to the [[Surface_model_(Water_Overlay)\|surface]] (e.g. roughness), [[Underground_model_(Water_Overlay)\|sub-surface]] (e.g. conductivity) and infrastructure (e.g. is a type connected to a sewer or not). As we work with a [[project]] containing a lot of data, the determination of model-coefficients can be complex. E.g.:
	* A [[Water_manning_(Water_Overlay)\|manning roughness coefficient]] can be related to the surface type (e.g. clay) if no infrastructure present. If infrastructure is present (e.g. a road), the value of the road will be used, and the value of the surface type will be ignored		* A [[Water_manning_(Water_Overlay)\|manning roughness coefficient]] can be related to the surface type (e.g. clay) if no infrastructure present. If infrastructure is present (e.g. a road), the value of the road will be used, and the value of the surface type will be ignored
	* An [[Terrain_ground_infiltration_md_(Water_Overlay)\|infiltration]] parameter can be related to the surface (land cover), [[Ground_infiltration_per_day_(Function_Value)\|infrastructure]] or underground (sub-surface).		* An [[Terrain_ground_infiltration_md_(Water_Overlay)\|infiltration]] parameter can be related to the surface (land cover), [[Ground_infiltration_per_day_(Function_Value)\|infrastructure]] or underground (sub-surface).
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	[[File:Results_kockengen.JPG\|500px]]		[[File:Results_kockengen.JPG\|500px]]
	<br>		<br>
	* Play the overlay by clicking on the arrows in the bottom left corner of the ~~3D world~~. Can you explain what happens?		* Play the overlay by clicking on the arrows in the bottom left corner of the [[User Interface]]. Can you explain what happens?
	* Click in the left panel on the other overlays. Can you explain the results? Notice the [[Base_types_result_type_(Water_Overlay)\|base types]] result. This result type shows input used for the model. As you can see the division in land, water and constructions is very rough. This is related to the [[grid cell size]]. In the General Tab you can press ''Change Grid'' to change the [[grid cell size]] to for example 2m. Can you see the difference, and see the impact on the [[Surface_last_value_result_type_(Water_Overlay)\|surface last value]], timesteps and calculation time?		* Click in the left panel on the other overlays. Can you explain the results? Notice the [[Base_types_result_type_(Water_Overlay)\|base types]] result. This result type shows input used for the model. As you can see the division in land, water and constructions is very rough. This is related to the [[grid cell size]]. In the General Tab you can press ''Change Grid'' to change the [[grid cell size]] to for example 2m. Can you see the difference, and see the impact on the [[Surface_last_value_result_type_(Water_Overlay)\|surface last value]], timesteps and calculation time?
	* Open the Rainfall Wizard again and click on the culverts step. Notice there are less errors with the culverts by changing the grid cell size. Can you now follow the error messages that were previously given?		* Open the Rainfall Wizard again and click on the culverts step. Notice there are less errors with the culverts by changing the grid cell size. Can you now follow the error messages that were previously given?