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<br />,\ <br /> <br />) <br /> <br />Pro' ect <br />Increasing stream gaging efficiencies by the application of new stream flow measurement <br />technologies - Acoustic Doppler Current Pro filers <br />It is critical that the existing network of USGS and DWR stream gages continue to be operated <br />nd maintained. In addition, new gages will be needed in the future for flood monitoring and <br />warning, instream flow protection, and data purposes for decision support systems and modeling <br />efforts. However, there is currently a lack of funding for opcration & maintenance of gages and <br />an insufficient number of FTEs to address all of thc gaging needs in Colorado. Furthermore, the <br />USGS is currently undergoing a prioritization process in their Gaging CO-OP program that will <br />likely result in the loss of gages over the next few years. In addition, all state hydrographers are <br />currently being fully utilized on existing gages, and therefore do not have the capability to add <br />additional gages to the existing network. <br /> <br />One strategy for addressing the cost associated with Operation and Maintenance of gages, and <br />the need for additional gages for CWCB purposes, is to research and implement new streamflow <br />measurement technologies in an effort to save the hydrographer time in making streamflow <br />measurements. Timesavings could then be utilized for the operation and maintenance of new <br />gages. <br /> <br />One such technological development is the Acoustic Doppler Current Profiler (ADCP). The <br />USGS has used ADCPs in other parts of the country, and it has been shown that this new <br />equipment can improve streamflow-measurement accuracy and efficiency in many locations. <br />However, it is uncertain how widely ADCPs can be used in Colorado streams that have shallow <br />depths, high velocities, and low sediment concentrations. An evaluation is proposed to examine <br />how widely ADCPs could be used in the streamgaging programs operated by the USGS and the <br />Division of Water Resources in Colorado. This cooperative project would utilize equipment and <br />personnel from both agencies to evaluate the potential for improved operations of gaging <br />stations based on the use of ADCPs. The project will also involve the purchase of two or more <br />DCPs for the Division of Water Resources. In addition, once efficiencies are quantified, <br />agreements with the SEO and possibly the USGS, will be developed for operation and <br />maintenance of new a es that will benefit CWCB oals. <br />Slate River Dye Dilution Tracer Gage Installation <br />This is a proposal for the installation of a fully operational dye dilution tracer gage on the Slate <br />River for the purpose of administration of the Board's Instream Flow rights. The Board recently <br />entered into a stipulation with the Upper Gunnison Water Conservancy District to mitigate the <br />impacts of numerous subdivisions in the Crestc~ Butte area with direct augmentation water from <br />Meridian Lake. Although an existing USGS gage can be used for summer administration, <br />winter administration is problematic as a result of ice conditions and inaccurate or absent data. <br />Over the past three years, the Board has cooperated with the USGS to develop dye dilution <br />gaging technology for applications in Colorado. This proposal covers installation, operation and <br />maintenance for one ear. <br />Flow Alert System utilizing existing satellite gages. <br />This is an on-going project that was initiated in FY 2002. It involves coordination with the <br />DWR and USGS, as well as IT programming to automatically alert CWCB staff when either low <br />or high flow conditions exists. This funding request is to further refine the capabilities of the <br />system, add additional alert gages to the system, and provide minimal operating expenses for <br />hone-based and e-mail alerts. <br />Flood hardening and flood warning systems. <br />Over the past four years, CWCB, DWR and USGS staff began a process to upgrade gage <br />installations throughout the state so that they could continue to be operated and survive during <br />high flow events. This effort has been referred to as "flood hardening." Each year, gages from <br />master list, that was developed in 2001/ 2002, will be evaluated on an individual basis and <br />nded for flood hardenin throu h this ro ram. In addition, flood-warn in s stems ma be <br /> <br />Flood Protection. Water Project Planning and Financing. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br /> <br />Estimated Cost <br />$85,000 <br /> <br />$ 25,000 <br /> <br />$5,000 <br /> <br />$ 50,000 <br />