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FLOOD07477
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Last modified
1/25/2010 7:11:53 PM
Creation date
10/5/2006 3:01:13 AM
Metadata
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Template:
Floodplain Documents
County
Statewide
Basin
Statewide
Title
1996 Colorado Flood Report
Date
1/1/1996
Prepared For
CWCB
Prepared By
CWCB
Floodplain - Doc Type
Flood Documentation Report
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<br />Monitoring and Documentation of Specific 1995 Flooding Events; <br />Evaluation and Preparation of Flood Conveyance Systems <br />- Advance Measures <br />- Estimating Channel Capacities <br />- Determination of the Role of Flood Control and Non Flood Control Reservoirs <br />- Determination of the Role ofIrrigation Diversions <br />Requests for Assistance in the Preparation of Local Mitigation Plans <br /> <br />Flood Insurance and Community Participation <br /> <br />See Attachment No. V for News Release <br /> <br />Flood Couvevauce Measures <br /> <br />In 1995 flood damages were prevented at many location due the mitigation measures that <br />were constructed following the 1983, 1984, 1993 floods. In addition, many locations enjoyed <br />flood control benefits because of the improved management of reservoirs in 1995. 1995 was also <br />marked by better advance preparation by local governments. Through the efforts of the Colorado <br />Flood Task Force, the word about the potential runoff got out to the flood-threatened areas. <br />That word enabled the local governments to better implement "advance measures" to prepare for <br />any flooding. The communities of Frisco, Summit County, Grand Junction, Delta, Delta County, <br />Gunnison, Gunnison County, Georgetown, Clear Creek County, Routt County, Garfield County, <br />Basalt, Pitkin County, Aspen and Redstone, the various communities in the Rio Grande Valley <br />and other communities all implemented "advance measures". Those "advance measures" included <br />prepositioning sandbags, mobilizing contractors for emergency work, reallocating funds for <br />floodfighting, setting up floodcasting stations and implement mitigation plans. <br /> <br />Knowing the "channel capacities" was a very important piece of information in flood <br />management and preparedness. By knowing the existing channel capacities and receiving a <br />reasonably accurate floodcast, it was possible for the local government officials and property <br />owners to determine what level of emergency flood protection was adequate. They could identity <br />potential breakout points, critical bridges and culverts and buildings in need of special protection. <br />The Division of water resources stream gaging network played a very important role in the <br />monitoring of spring snowmelt flooding. <br /> <br />Reservoir Operations <br /> <br />Chatfield, Bear Creek, Reudi and the Colorado Storage Project <br /> <br />During the 1995 snowmelt runoff and spring flood, the flood control and "non-flood <br />control" reservoirs played a role in the detention of floodwaters and the reduction of flood flows. <br />This was evident is in the Gunnison and South Platte River basins. However, we learned that <br />there is a need to better coordinate the operations and releases of the reservoir pools during the <br />spring runoff season. The Board and Office of Emergency Management staffs are in <br />communication with the Corps of Engineers, Bureau of Reclamation, Denver Water Board, and <br />private reservoir companies regarding future operations. <br />
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