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I I I I I I I I I I I I I I I I I I I Flood Control Master Plan and Local Pre-Disaster Flood Hazard Mitigation Plan . Town of Georgetown, Colorado . Buried Conduit. A preliminary reconnaissance in the field indicates that this is probably the most practical approach. Griffith and Park Streets are presently unpaved which would permit relatively inexpensive conduit installation. Additionally, the conveyance structures would not be visible to residents or tourists and so there would be no negative permanent aesthetic impacts. Construction cost will be an important obstacle to this alternative. Concept 6 . Temporary Bypass Conveyance This concept is an expansion of the flood fighting approach used by the Town in the past. Surcharge flows would be diverted down Griffith Street and through the ball field and train station parking lot to Clear Creek. In order to prevent overflows at Rose and Taos Streets as occurred in 1995, more flow would have to be diverted and bypassed. Flows could be confined to the streets, park and parking lot using temporary placement of concrete highway barriers ("Jersey rails"), inflatable fabric dams, or other methods to supplement traditional sandbagging. Advantages of this approach include: . Low capital investment (stockpile concrete barriers, inflatable dams, sandbags, etc.) . No improvements on private property . Draws on volunteer spirit of Town for implementation Disadvantages of this approach include: . Poor reliability . Would not mitigate very high flows (e.g., 1 OO-year flood) or basement flooding . Blocked access to residences on Griffith Street and other properties along the flow path . High post-flood maintenance costs . Public safety concerns ((II) MONTGOMERY WATSON . 2-6