| Abstract: | Estimates of the magnitude and frequency of peak streamflows is critical for the safe and cost-effective design of hydraulic structures and stream crossings, and accurate delineation of flood plains. Engineers, planners, resource managers, and scientists need accurate estimates of peak-flow return frequencies for locations on streams with and without streamflow-gaging stations. The 2-, 5-, 10-, 25-, 50-, 100-, 200-, and 500-year recurrence-interval flows were estimated for 344 unregulated U.S. Geological Survey streamflow-gaging stations in Utah and nearby in bordering states. These data along with 23 basin and climatic characteristics computed for each station were used to develop regional peak-flow frequency and magnitude regression equations for 7 geohydrologic regions of Utah. These regression equations can be used to estimate the magnitude and frequency of peak flows for natural streams in Utah within the presented range of predictor variables. Uncertainty, presented as the average standard error of prediction, was computed for each developed equation. Equations developed using data from more than 35 gaging stations had standard errors of prediction that ranged from 35 to 108 percent, and errors for equations developed using data from less than 35 gaging stations ranged from 50 to 357 percent. |
| Genre: | USGS Numbered Series |
| ProdID: | 80307 |
| Citation Author: | Kenney, Terry A.; Wilkowske, Chris D.; Wright, Shane J. |
| Citation Contributing Office: | USGS Utah Water Science Center |
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| Citation Edition: | Version 4.0, Revised Mar 2008 |
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| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | 0421500 |
| Citation LatS: | 0360000 |
| Citation LonE: | -1070000 |
| Citation LonW: | -1150000 |
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| Citation Phsyical Description: | iv, 28 p. |
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| Citation Public Comments: | Prepared in cooperation with Utah Department of Transportation and the Utah Department of Natural Resources, Divisions of Water Rights and Water Resources |
| Citation Publisher: | Geological Survey (U.S.) |
| Citation Series: | Scientific Investigations Report |
| Citation Series Code: | SIR |
| Citation Series Number: | 2007-5158 |
| Citation Search Results Text: | Methods for Estimating Magnitude and Frequency of Peak Flows for Natural Streams in Utah; 2007; SIR; 2007-5158; Kenney, Terry A.; Wilkowske, Chris D.; Wright, Shane J. |
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| Citation Year: | 2007 |
| Type: | citation/reference |
| Text: | Methods for Estimating Magnitude and Frequency of Peak Flows for Natural Streams in Utah; 2007; SIR; 2007-5158; Kenney, Terry A.; Wilkowske, Chris D.; Wright, Shane J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/sir/2007/5158/ |
| Date Other: | Fri, 31 Aug 2007 00:00 -0500 |
| Publisher: | Geological Survey (U.S.) |
