Tentative Design Procedure for Riprap-Lined Channels-Field Evaluation
1973-06
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Tentative Design Procedure for Riprap-Lined Channels-Field Evaluation
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1973-06
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St. Anthony Falls Hydraulic Laboratory
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Report
Abstract
As a result of the basic study outlined in the previous report (1)*,
a field evaluation of riprap-lined channels designed in accordance with
the procedures outlined therein was recommended to determine the effectiveness
of the procedures at scales considerably larger than any that can be
produced in the laboratory.
Because drainage channels are constructed as the need arises, and the
necessity for a riprap lining depends on the local circumstances, considerable
time may elapse before a substantial number of channels is available
for examination. In addition, hydrologic events of the magnitude necessary
to provide an effective test of the riprap's stability are relative infrequent.
These conditions have militated against collection of sufficient
data to thoroughly test the procedures developed in the study. Specifically,
five channels have been proposed since the completion of the report outlining
these design procedures; four of these have been constructed and one is
still in the planning stage. Of the four completed projects, two were intended
for stream relocations involving relatively large discharges and two
are roadside drainage ditches. Some data have been obtained for these four
channels, but in only two cases has the discharge been large enough to approach
the design discharge and provide a reasonably definitive test. A
detailed description of each of these channels and the available data on the
results of the discharges which have occurred are given in the appendices.
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Anderson, Alvin G.. (1973). Tentative Design Procedure for Riprap-Lined Channels-Field Evaluation. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/114856.
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