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									                                                                                    NATIONAL HIGHWAY INSTITUTE



Hydraulic Design Series No. 4
  INTRODUCTION TO HIGHWAY HYDRAULICS
                                                                           Publication No. FHWA-NHI-01-019
                                                                                               August 2001

ABSTRACT:
Introduction to Highway Hydraulics, Hydraulic Design Series No. 4 (HDS-4), provides an introduction to
highway hydraulics. Hydrologic techniques presented concentrate on methods suitable to small areas, since
many components of highway drainage (culverts, storm drains, ditches, etc.) service primarily small areas. A
brief review of fundamental hydraulic concepts is provided, including continuity, energy, momentum,
hydrostatics, weir flow and orifice flow. The document then presents open channel flow principles and design
applications, followed by a parallel discussion of closed conduit principles and design applications. Open
channel applications include discussion of stable channel design and pavement drainage. Closed conduit
applications include culvert and storm drain design. Examples are provided to help illustrate important
concepts. An overview of energy dissipators is provided and the document concludes with a brief discussion
of construction, maintenance and economic issues.

As the title suggests, HDS-4 provides only an introduction to the design of highway drainage facilities and
should be particularly useful for designers and engineers without extensive drainage training or experience.
More detailed information on each topic is discussed by other Hydraulic Design Series and Hydraulic
Engineering Circulars.


DOCUMENT AVAILABILITY:
To download an electronic copy: http://www.fhwa.dot.gov/engineering/hydraulics/library_listing.cfm

RELATED NHI TRAINING COURSE:
FHWA-NHI-135065, Introduction to Highway Hydraulics
FHWA-NHI-135081, Introduction to Highway Hydraulics Software
http://www.nhi.fhwa.dot.gov/category.asp?category_id=7

RELATED SOFTWARE:
Visual Urban – Urban Drainage Design Programs (2002)
http://www.fhwa.dot.gov/engineering/hydraulics/software.cfm

FHWA TECHNICAL CONTACTS:
Mr. Dan Ghere                                    Mr. Joe Krolak
Hydraulics Engineer, FHWA Resource Center        Sr. Hydraulics Engineer, FHWA Headquarters
Phone: (708) 283-3557                            Phone: (202) 366-4611
Email: dan.ghere@fhwa.dot.gov                    Email: joseph.krolak@fhwa.dot.gov




FHWA Hydraulics: http://www.fhwa.dot.gov/engineering/hydraulics/index.cfm

								
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