The following options are being considered in the Freese and Nichols Dixon Branch study.
Diversion: Routing flood waters from the channel via an alternate path, either underground or in an open channel. This would require an additional outfall into the channel downstream or into White Rock Lake.
Detention: Detaining floodwaters for a specified period of time, then releasing back into the channel after a storm event has subsided—may be surface, underground, or deep.
Buy-out: With homeowner agreement, the City may purchase or relocate existing flooded structure(s).
Channel modifications: May include altering the channel alignment, geometry, ground cover or slope. Specific activities include, but are not limited to, excavation, fill, vegetative plantings, installing bed and bank protection materials, and improving road crossings (culverts/bridges).
Flood wall: The intent of a floodwall is to keep flood waters from escaping the existing channel bank(s) and flooding nearby residents. The wall structure may be earthen or impervious and would require a pumping system to drain the residential area behind the wall.
Source: 2008 Freese and Nichols Inc. For information, visit protecthomevalues.com
