Create a linear asset using existing endpoints
A linear asset, such as a sewer or water main, is defined based on beginning and ending nodes, each of which is a separate point asset in your inventory. For example, a sewer main record might represent the stretch of pipe between two manholes. If you have two existing point assets in your map, you can use the sketch tool to create a linear asset between them. If the endpoints don't already exist in the geodatabase, you can create them when you create the linear asset.