Drainage Design - Spread on Roadway

  1. I'm confused about how spread is calculated.

    Looking at the FHWA Drainage Manual, page 4-9 (pdf page 99) gives a formula for computing spread T, but on an example sheet 4-14 (pdf page 104) spread is stated as being an iterative solution. I'm not really to clear on why there is two different procedures here.

    Can anyone clarify this?
     
  2. jcsd
Know someone interested in this topic? Share a link to this question via email, Google+, Twitter, or Facebook

0
Draft saved Draft deleted
Similar discussions for: Drainage Design - Spread on Roadway
Loading...