Floods on small streams in North Carolina, probable magnitude and frequency
Circular
517
Prepared in cooperation with the North Carolina State Highway Commission
By: Herbert G. Hinson
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Abstract
The magnitude and frequency of floods are defined regionally for small streams (drainage area, 1 to 150 sq mi) in North Carolina. Composite frequency curves for each of two regions relate the magnitude of the annual flood, in ratio to the mean annual flood, to recurrence intervals of 1.1 to 50 years. In North Carolina, the mean annual flood (Q2.33) is related to drainage area (A) by the following equation: Q2. 33 = GA0.66, where G, the geographic factor, is the product of a statewide coefficient (US) times a correction which reflects differences in basin characteristics. Isograms of the G factor covering the State are presented.
Suggested Citation
Hinson, H.G., 1965, Floods on small streams in North Carolina, probable magnitude and frequency: U.S. Geological Survey Circular 517, iii, 7 p., https://doi.org/10.3133/cir517.
ISSN: 2330-5703 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Floods on small streams in North Carolina, probable magnitude and frequency |
| Series title | Circular |
| Series number | 517 |
| DOI | 10.3133/cir517 |
| Year Published | 1965 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | South Atlantic Water Science Center |
| Description | iii, 7 p. |
| Country | United States |
| State | North Carolina |