City of Balch Springs Hickory Creek Flood Protection Planning Study Final Report Page: 30
501 p. : ill. ; 28 cm.View a full description of this report.
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Where foundation heights were not available from the USACE database, the average
value of the foundation heights from the USACE database was used: 0.97 feet.
The inventory of structures was divided into commercial and residential damage
categories based on the parcel data, as shown in Table 13, Major Damage Categories.
Table 13: Major Damage Categories
Damage Category Description
Residential Single and Small Multi-Family Dwellings
Commercial Retail and wholesale businesses
Damage curves from the USACE database were used for the flood damage analysis
since they covered the types of structures found in the study area and were considered
as best available data. For commercial structures, the most appropriate of the 87
commercial damage curves from the USACE study was selected according to the type
of structure. For residential structures, only one (1) damage curve was used, since all
residential structures studied were houses, as opposed to mobile homes or large multi-
family residences.
Damage reaches were determined by forming logical groupings of structures fully or
partially inundated by the 500-year floodplain limits. Along Hickory Creek, fourteen
damage reaches were defined. Along Stream 4C6, ten damage reaches were defined.
Between the other tributaries in the study, five additional damage reaches were defined.
Within HEC-FDA, damage reach extents were defined in relation to the corresponding
stream stationing. The damage reaches' locations are listed and described in Table 14,
Description of Damage Reaches. Figure 13, FDA Damage Reaches and Affected
Properties, shows all structures identified and the corresponding FDA damage reach.30
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Halff Associates. City of Balch Springs Hickory Creek Flood Protection Planning Study Final Report, report, July 29, 2011; Richardson, Texas. (https://texashistory.unt.edu/ark:/67531/metapth838691/m1/41/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.