FHWA Resource Center
GEOTECH & HYDRAULICS TEAM
Hydraulic Engineering Circular No. 14
HYDRAULIC DESIGN OF ENERGY DISSIPATORS FOR CULVERTS AND CHANNELS
Publication No. FHWA EPD-86-110
September 1983
ABSTRACT:
Interception and concentration of overland flow and constriction of natural waterways by culverts and channels can result in increased channel erosion and scour potential. To protect roadways and adjacent areas from this erosion and scour, it is sometimes necessary to employ energy dissipation measures. Hydraulic Design of Energy Dissipators for Culverts and Channels, Hydraulic Engineering Circular No. 14 (HEC-14), provides design information for analyzing energy dissipation problems at culverts and in open channels. The first five chapters of the circular provide general information to support the remaining design chapters, including discussions of erosion and scour hazards associated with flow constriction and acceleration and general design concepts for erosion and scour protection. Design Chapters 6-11 cover the general types of dissipators: hydraulic jumps, forced hydraulic jumps, impact, drop structures, stilling wells, and riprap. The basic design concept presented in Chapter 1 is illustrated in
Chapter 12. In this chapter, the different dissipator types are compared using design problems.
DOCUMENT AVAILABILITY:
To download an electronic copy:
RELATED NHI TRAINING COURSE:
FHWA-NHI-135065, Introduction to Highway Hydraulics
FHWA-NHI-135081, Introduction to Highway Hydraulics Software
RELATED SOFTWARE:
Visual Urban – Urban Drainage Design Programs (2002)
FHWA TECHNICAL CONTACTS:
Mr. Dan Ghere
Hydraulics Engineer, FHWA Resource Center
Phone: (708) 283-3557
Email: dan.ghere@fhwa.dot.gov
Mr. Joe Krolak
Sr. Hydraulics Engineer, FHWA HQ
Phone: (202) 366-4611
Email: joseph.krolak@fhwa.dot.gov
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