Natural Streams Cross Section Study
This hydrologic study is based on Potter's hypothesis that a stream writes its own life history in the shape of its channel and adjacent flood plain. As a background to this hypothesis were studies of flood occurrences, showing definitely that maximum annual peaks plotted on extremal probability paper define two frequency curves representing different populations. The appearance of the transition period between the two curves, which was found to be in the range of five to ten years' frequency, generated the idea that somewhere in nature the streams would have expressed this difference of populations and transition during the formation of the stream bed. This hypothesis was substantiated by other hydrologists who were looking simultaneously and independently into problems of hydrology in recent years. The present procedures developed for estimating peak rates of runoff from small ungaged watersheds are still not satisfactory to many scientists as well as designers. The reason for these new studies in hydrology is to develop better methods which will enable engineers working in water resources development to make reliable estimates of the magnitude and frequency of flood flows. The objective of this project is twofold: first, to justify Potter's use of upper and lower frequency curve which represent two different populations of peak rates of runoff; and second, to verify findings of the pilot cross-section study that a relation exists between the magnitude of the ten-year peak rate of runoff and some characteristics of the stream cross section. The project will cover the eastern and middle parts of the United States. In this paper are the results of the first phase covering that portion of the country between the Atlantic Coast and 97th meridian.
- Record URL:
-
Supplemental Notes:
- Alternate title: The Hydrologic Decade Interim Report on Natural Streams Cross Section Study.
-
Corporate Authors:
Bureau of Public Roads
Washington, DC United States -
Authors:
- Stovicek, Frank K
- Publication Date: 1965-7
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Interim Report
- Features: Figures; References; Tables;
- Pagination: 36p
Subject/Index Terms
- TRT Terms: Cross sectional studies; Floods; Hydrology; Runoff; Streams; Watersheds
- Subject Areas: Highways; Hydraulics and Hydrology;
Filing Info
- Accession Number: 01924912
- Record Type: Publication
- Files: NTL, TRIS
- Created Date: Jul 23 2024 10:08AM