Tidal Hydrology, Hydraulics and Scour at Bridges

(Hydraulic Engineering Circular No. 25) The purpose of this manual is to provide guidance on hydraulic modeling for bridges over tidal waterways. This document includes descriptions of: (1) common physical features that affect transportation projects in coastal areas, (2) tide causing astronomical and hydrologic processes, (3) approaches for determining hydraulic conditions for bridges in tidal waterways, (4) applying the hydraulic analysis results to provide scour estimates. By using the methods in this manual, better predictions of bridge hydraulics and scour in tidal waterways will result. In many cases, simplified tidal hydraulic methods will provide adequate results. However, when the simplified methods yield overly conservative results, use of the recommended modeling approaches will provide more realistic predictions and hydraulic variables and scour.

Author: Federal Highway Administration

Publisher: Createspace Independent Publishing Platform

Publication Date: Feb 24, 2015

Number of Pages: 176 pages

Binding: Paperback or Softback

ISBN-10: 1508609071

ISBN-13: 9781508609070