The results of the GPR study will aid in clarifying the flood risk so they can make decisions on which alternative solution to use. A moderate to severe risk would necessitate a channel diversion further upstream, which would be a costly endeavor. Concrete ditches for channelizing the flow would minimize channel incision and erosion. This project calls for a transition from brush to grass on the alluvial fan. Cattle grazing would be used to reduce the shrub population while also trampling grass seed into the ground promoting grass growth.
Grasses have a more extensive root system which reduces runoff aiding in the fan stability.
Then two other transects were done to the east on Fuller Road and Wade Street. Laser leveling, as seen to the right, was done along all three of these transects in order to compensate for changes in the topography. Johnson Lane Wash, south of Johnson Lane Park GPR work was also completed at the Johnson Lane Wash, a channel that was cut by flood waters in the early 1990's. The flow of this channel has been altered by humans in an attempt to divert flood waters away from development. The GPR transect ran alongside the incised channel to locate older distributary channels.