--- title: "Working with river nodes" slug: "working-with-river-section-nodes" description: "Learn how to work with river section nodes, and what data you need." tags: ["1D river modelling", "river section", "Manning's n"] updated: 2022-09-20T12:29:41Z published: 2022-09-20T12:29:41Z canonical: "help.floodmodeller.com/working-with-river-section-nodes" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://help.floodmodeller.com/llms.txt > Use this file to discover all available pages before exploring further. # Working with river nodes After you [Add a River Section](/v1/docs/add-river-section) to your network, you can double-click the node to view the properties. ![1DRiverimageswwriversection.PNG](https://cdn.document360.io/5074bc26-a9ef-4bf4-b1de-a5c6ce628aca/Images/Documentation/1DRiverimageswwriversection.PNG) You must enter the cross-sectional details. The minimum values to define are the **x-coordinates**, **y-coordinates** and **Manning's n** values. Manning's n is a parameter >0 related to the roughness. Manning's n increases as roughness increases. These data can be manually entered into the table provided, or right-click to access functions such as copy and paste. The **Distance to Next Section** value must also be provided. This enables you to enter the distance to the next **River Section** node in the network. This will be zero if the next node in your network is a structure. The order of your **River Section** nodes is determined by their order in the **1D River Network** panel. Drag and drop the rows here to adjust the order of connectivity as required. You may also be interested in adding levees, panel markers, or other special markers. These are all detailed within the [River section](/v1/docs/river-section-overview) page of the technical reference [Conveyance](/v1/docs/conveyance-and-cross-section-property-displayhtm) is also very important to take into consideration.