ntroduction to Highway Hydraulics 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 book 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, Introduction to Highway Hydraulics 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.

Hydraulic Design Series No. 4 provides an introduction to highway hydraulics. Hydrologic technique presented concentrate on methods suitable to small areas, since many components of highway drainag (culverts, storm drains, ditches, etc.) service primarily small areas. A brief review of fundament hydraulic concepts is provided, including continuity, energy, momentum, hydrostatics, weir flow an orifice flow. The document then presents open channel flow principles and design applications, followe by a parallel discussion of closed conduit principles and design applications. Open channel application include discussion of stable channel design and pavement drainage. Closed conduit application include culvert and storm drain design. Examples are provided to help illustrate important concepts. A overview of energy dissipators is provided and the document concludes with a brief discussion construction, maintenance and economic issues.As the title suggests, Hydraulic Design Series No. 4 provides only an introduction to the design highway drainage facilities and should be particularly useful for designers and engineers witho extensive drainage training or experience. More detailed information on each topic discussed is provide by other Hydraulic Design Series and Hydraulic Engineering Circulars.

Highway hydraulic structures perform the vital function of conveying, diverting, or removing surface water from the highway right-of-way. They should be designed to be commensurate with risk, construction cost, importance of the road, economy of maintenance, and legal requirements. One type of drainage facility will rarely provide the most satisfactory drainage for all sections of a highway. Therefore, the designer should know and understand how different drainage facilities can be integrated to provide complete drainage control. Drainage design covers many disciplines, of which two are hydrology and hydraulics. The determination of the quantity and frequency of runoff, surface and groundwater, is a hydrologic problem. The design of structures with the proper capacity to divert water from the roadway, remove water from the roadway, and pass collected water under the roadway is a hydraulic problem. This publication will briefly discuss hydrologic techniques with an emphasis on methods suitable to small drainage areas, since many components of highway drainage (e.g., storm drains, roadside ditches, etc.) service primarily small drainage areas. Fundamental hydraulic concepts are also briefly discussed, followed by open-channel flow principles and design applications of open-channel flow in highway drainage. Then, a parallel discussion of closed conduit concepts and applications in highway drainage will be presented.