I have a rural property with a large ditch drain out the front (no curb or channel). We need access to our block and want to build a drain/driveway thing over the ditch, but I don’t know what it’s called, or where to start looking for DIY instructions.
Can anyone help?

Im responsibility a project for science on energy resources and i happened to chose solar and hydro power energy. I need some opinions about them.. Are these excellent energy sources..Tell me what you guys reckon.