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Book Effects of Flood Plain Encroachments on Peak Flow

Download or read book Effects of Flood Plain Encroachments on Peak Flow written by Johannes J. DeVries and published by . This book was released on 1980 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Flood Plain Encroachments on Peak Flow

Download or read book Effects of Flood Plain Encroachments on Peak Flow written by J. J. DeVries and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: When land development encroachments into river flood plains are permitted, the magnitude of the flood peak discharge will be increased due to removal of flood plain storage. When the flood plain encroachment is limited (for example, when no more than one foot of water surface rise is permitted), the study results indicate that the increase in the flood peak is usually relatively small; it is generally less than 10 percent. The arrival time of the flood peak can be affected to a much greater extent, and in stream systems with significant tributary flows, consideration must be given to the effects of encroachments on the coinciding of the flood peaks. Various hydrograph shapes and mean river slopes were used in the investigation of encroachment effects. Both unsteady flow simulations and steady flow profile calculations with hydrologic routing were used in the analyses. (Author).

Book Flow Modifications by Storage Loss Through Flood Plain Encroachment

Download or read book Flow Modifications by Storage Loss Through Flood Plain Encroachment written by L. A. Traille and published by . This book was released on 1982 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: When highways and other developments encroach on natural stream valleys, they act to obstruct the flow and consequently modify natural flooding characteristics. The impact of a particular channel or flood plain encroachment on flooding is governed by the degree it alters natural valley properties, as well as orientation or alignment with respect to flow. Most encroachments can be classified as either lateral or transverse to the flow, although an embankment aligned with an acute skew angle could be considered both lateral and transverse. Alteration of the natural floodway through the loss of overbank storage and the resulting constriction of the flow will ultimately result in increased flood stages and peak discharges, as well as scouring of the main channel bed. Assessing impacts on flow of a design alternative is important in preliminary design stages. At present this can only be achieved through the use of complex models requiring considerable data collection and preparation. To avoid such lengthy procedures, there is urgent need for simpler techniques that would use minimum amounts of input data without seriously sacrificing accuracy. The objective of NCHRP Project 15-7 is to develop simple short-cut procedures for assessing changes in water surface profiles, peak discharges, and scour. As they are intended for use in preliminary estimates, the results of this study in no way substitute for the detailed procedures required in final design studies. These procedures emphasize predicting changes rather than developing absolute values.

Book North south Coors Connection Alignment of Coors Blvd Albuquerque

Download or read book North south Coors Connection Alignment of Coors Blvd Albuquerque written by and published by . This book was released on 1982 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Wolf Creek Pass East Mineral County

Download or read book Wolf Creek Pass East Mineral County written by and published by . This book was released on 1983 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Geological Survey Professional Paper

Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1977 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book State College Bypass System LR 1050 US 322

Download or read book State College Bypass System LR 1050 US 322 written by and published by . This book was released on 1981 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Oil and Gas Leasing Environmental Impact Statement

Download or read book Oil and Gas Leasing Environmental Impact Statement written by United States. Forest Service and published by . This book was released on 1990 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Upper Alameda Creek Urban Study

Download or read book Upper Alameda Creek Urban Study written by and published by . This book was released on 1981 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Flood Insurance Study

Download or read book Flood Insurance Study written by United States. Federal Insurance Administration and published by . This book was released on 1978 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transportation Improvement Study Routes 9 and 100 NH 010 1 33 Windham County

Download or read book Transportation Improvement Study Routes 9 and 100 NH 010 1 33 Windham County written by and published by . This book was released on 2004 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dallas Fort Worth International Airport Runway 16 34 East and Runway 16 34 West

Download or read book Dallas Fort Worth International Airport Runway 16 34 East and Runway 16 34 West written by and published by . This book was released on 1992 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book I 78 Haafsville PA to Still Valley NJ

Download or read book I 78 Haafsville PA to Still Valley NJ written by and published by . This book was released on 1979 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: