Depth of flow on parking lot
Depth of flow on parking lot
(OP)
I am trying to figure out how to determine the depth of flow across an asphalt parking lot (sheet flow or shallow concentrated runoff). I can calculate the accumulated runoff no problem but I am not sure how to get the max depth at any one instant.
Thanks
Thanks





RE: Depth of flow on parking lot
Sheet flow by definition from the TR-55 is "0.1 foot or so".
Sheet flow is assumed to take place up to a travel length of 300 feet, but could be less, especially in a parking lot.
You could take the peak flow, determine the velocity, and then get the area of flow. If you have an inverted crown type parking lot towards the inlet, you get the area of the triangle that produces the peak flow and solve for the depth.
RE: Depth of flow on parking lot
RE: Depth of flow on parking lot
Thanks,
RE: Depth of flow on parking lot