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<br />) <br /> <br />sections were established along the Gunnison River, and five were established along the <br />Colorado River. <br /> <br />Tasks 10 & 11 - Topographic Survey of Green, Colorado, and Gunnison River sites - <br />Topographic surveys were perfonned at all sites, endpoints were located, tops of banks <br />were defined, and any channels or flooding features were identified. Maps of the sites with <br />2-foot contours were generated for each site. Note: Mapping for three sites on the Green <br />River has not been completed. The Slaugh site was surveyed near the end of the fiscal <br />year, and the Snow and Brady properties were surveyed after the end of the fiscal year. <br />In addition, the two Colorado River sites were also surveyed at the end of the fiscal year. <br /> <br />Task 12 - Hydrologic Analysis of the Gunnison and Colorado Rivers - An initial hydrologic <br />analysis has been completed for the Gunnison River. A hydrologic analysis has not yet <br />been completed for the Colorado River at this time. <br /> <br />Task 13 - Floodability of the Green River Sites - The f100dability analysis for the <br />Rasmussen site has been completed and the results transferred to the Fish and Wildlife <br />personnel. The flood ability of the three Green River sites surveyed in the late summer and <br />fall have not yet been completed. <br /> <br />Task 14 - Floodability of the Colorado and Gunnison River Sites - This task has been <br />completed for the two Gunnison River sites. This task has not been completed for the <br />Colorado River sites. A hydraulic model will need to be developed for the Colorado River <br />sites which were surveyed in the fall. <br /> <br />Task 15 - Transfer of Results - A short letter report has been written to Dave Saker and <br />other FWS land acquisition personnel which documents the flood ability assessment at <br />each site done during runoff season 1997. The sites which were surveyed this fall have <br />still not been completed. At some of the sites, assistance from a BR surveying crew may <br />be necessary to document the location of property boundaries for the purpose of <br />assessment. <br /> <br />FLO Proiect #10600.4 Tasks. Carryover from 1996: <br />Task 7 - Construction Oversight - FLO Engineering, Inc. provided construction oversight <br />at three sites on the Green River. The Bonanza Bridge site and Stirrup site on BLM lands <br />near Vernal, Utah. Appropriate flooding elevations were checked throughout the <br />construction phase and the proper placement of spoils materials, etc. was monitored. <br />Photo documentation and construction notes are available upon request. <br /> <br />Task 8 - Post Construction Surveys - Post construction surveys were conducted at each <br />of the three modified bottomland sites. In addition, permanent cross sections with <br />monuments were established at each bottomland opening for future monitoring of erosion <br />and sedimentation. Initial results indicated deposition of up to two feet near the mouth of <br />the Bonanza Bridge bottomland and up to one foot near the mouth of the Stirrup <br />bottomland. This deposition was enough to increase the initial flooding elevation at both <br /> <br />3 <br />