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Scour measurements at bridge sites during 1993 Upper Mississippi River Basin flood

Transportation Research Record

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Abstract

The record flood on the upper Mississippi River basin during the summer of 1993 provided a rare opportunity for collection of data on streambed scour at bridges and for testing of scour data collection equipment under extreme hydraulic conditions. Real-time scour measurements at bridges are categorized into one of three classes according to their objective: inspection measurements, limited-detail measurements, and detailed measurements. All three types of measurements were made during the 1993 flood. Recent advances in technology and improved application of existing technology allow hydraulic and channel bathymetry data to be collected more accurately, in greater detail, and more efficiently than previously possible. Two limited-detail and two detailed data sets are presented. The observed depths of scour are consistently less than the depths of pier scour estimated by use of recommended procedures. Additional data processing, analysis, and visualization are required to characterize and understand complex processes measured by use of state-of-the-art instrumentation.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Scour measurements at bridge sites during 1993 Upper Mississippi River Basin flood
Series title:
Transportation Research Record
Issue:
1483
Year Published:
1995
Language:
English
Publisher:
National Research Council
Publisher location:
Washington, DC, United States
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
47
Last page:
55
Number of Pages:
9