By Howard F. Matthai
Preface
Symbols and units
Abstract
Introduction
The discharge formula
Approach section
Contracted section
Water-surface levels
Velocity head
Friction loss
Froude number
Classification of contractions
Single-opening contractions
Type 1
Type 2
Type 3
Type 4
Modified standard types
Spur dikes
Dual bridges
Abutments parallel to flow
Nonstandard types
Combination sites
Multiple-opening contractions
Field procedures
Selection of a site
High-water marks
Cross sections
Bridge geometry
Channel conditions
Discharge coefficient
Channel-contraction ratio
Determination of the discharge coefficient
Base coefficient
Adjustment factors
Eccentricity
Piers or piles
Submergence
Abutments parallel to flow
Other factors and conditions
Angularity
Intermediate embankment slopes
Different abutments
Nonstandard geometry and flow conditions
Maximum coefficient
Special conditions
Other embankment slopes
Timber-and-pile bridges
Spur dikes
Arch bridges
Computations
Outline
Example
Combination sites
Multiple-opening contractions
Division into single-opening units
Determination of h1 and h3
Computation of discharge
Selected references
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