HYDRAULIC DESIGN OF HIGHWAY CULVERTS
Hydraulic Design Series Number 5 (HDS5)
Published by: US Federal Highway Administration (FHWA)
Publication no: FHWA-HIF-12-026 HDS 5
Authors: James D. Schall, Philip L. Thompson, Steve M. Zerges, Roger T. Kilgore, and Johnny L. Morris
This document can be downloaded from the FHWA website.