[PDF] Downstream Effects Of The Levee Overtopping At Wilkes Barre Pa During Tropical Storm Agnes eBook

Author : Arlen D. Feldman
Publisher :
Page : 25 pages
File Size : 34,57 MB
Release : 1973
Category :
ISBN :

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A rainfall-runoff model for Tropical Storm Agnes in the Susquehanna River Basin was developed. A reservoir operation model was also developed in order to compute regulated streamflows. Susquehanna River flood discharges were computed for Wilkes-Barre, PA, for both levee nonovertopping and levee overtopping conditions. The levee overtopping conditions were modeled using storage-outflow relations developed from water surface profiles for the Wilkes-Barre reach. If the levee had been sufficiently high to contain the flow, the peak discharge would have been increased and occurred earlier. Translating this earlier and larger peak downstream would have resulted in practically a 10 percent increase in the peak discharge at Sunbury. This large peak is due to both the increased peak at Wilkes-Barre and coincident timing with the peak coming from the West Branch of the Susquehanna River. Since the actual peak flow at Sunbury was within inches of the top-of-the-levee, a potentially disasterous flood could have occurred at Sunbury if the Wilkes-Barre levee had not been overtopped. (Author).

Author : Darryl W. Davis
Publisher :
Page : 26 pages
File Size : 23,29 MB
Release : 1980
Category : Flood control
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Flood control and flood plain management investigations using spatial data management techniques are increasing in the Corps of Engineers. Pilot studies initiated in the mid-1970's were successful in consolidating analysis concepts, fostering the development of spatial data file creation and management technology and enhancing the consideration of existing and alternative future development patterns in Corps' planning studies. Over 30 studies using HEC-SAM, the Corps' spatial data management system, are now completed or underway. HEC-SAM was created through selective acquisition of commercial software, adaption of academic research products, and development by researchers at the Corps' Hydrologic Engineering Center (HEC). The HEC role continues to be that of system developer and technology transfer agent. The evolution, present capabilities, and applications of HEC-SAM are described. Observations are offered on spatial technology development, implementation, and servicing. (Author).

Author : Duke G. Altman
Publisher :
Page : 24 pages
File Size : 17,40 MB
Release : 1980
Category : Spanky Branch Watershed (Tex.)
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The application of the Soil Conservation Services (SCS) urban hydrology techniques is made to four watersheds. The parameters of the methods are obtained from standard SCS guidance and from calibration of watershed model HEC-1 using the SCS method. A modified method of determining these parameters is also recommended to SCS. Runoff parameters are then used with design storms to illustrate the differences in frequency curves which may result. (Author).