Author(s): L.J. Harrison, J.L. Morris, J.M. Normann, F.L. Johnson
Publisher: FHWA
Year: 1972
Links: PDF
Subjects: Culverts

This manual provides hydraulic design methods for circular and rectangular culverts with improved inlets. Improved inlets are bevels, side-tapers, and slope-tapers which are modifications to the culvert entrance geometry . These improvements can greatly increase the performance of a culvert which is operating in inlet control. Design charts, tables and computation sheets are provided in the manual.

(Now superseded by HDS-5.)

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