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7 tional height of riprap in their la~e adjacent to the river? Ron Rossmiller of WWE replied that model tests have shown that the existing USACE dam crest remains the hydraulic control for all flows in the river, so depths upstream of the crest will remain the same as they are now after completion of the proposed construction. Englewood personnel were as~ed if they preferred the barrier or the solid wall for the inta~e channel. Mi~e Woi~a replied that this is a CWCB project, he is not an hy- draulics expert and wants the experts to tell him which is better. The City is satis- fied with the present operation of the inta~e. He does not want to be in the position of a "partner" in the decision; so if something goes wrong afterwards, he will have someone to blame. The experts need to model the solid wall to obtain data. Ben Urbonas of the UD&FCD stated that we should not rely on gate settings or human controlled items for boater safety, we should have physical barriers. It was recommended that prototype tests be done of gate setting versus sand move- ment in the inta~e channel during the Spring runoff period in the river. None has ever been done - the gate is just opened wide when sediment is a problem. A pro- gram needs to be set up between Englewood and the USBR to do this. They and WWE will meet after the meeting to set up such a program. Ken Wright of WWE recom- mended that a permanent manual of gate openings and sediment accumulation and transport be set up. Gary Lacy and Jim Curnes of Sheridan discussed the possibility of having a shorter safety screen with a flat angle across the sluiceway ( upstream inta~e channel). Ben Urbonas suggested fine tuning with the gate setting or flushing at night. John Ebling of the USGS commented on their plans to install a low flow gaging station about 200 feet upstream of Union Avenue and about 100 feet downstream of the Dry Cree~ confluence in the next 2 or 3 wee~s. They need a line of roc~ for a weir to create a pond for accurate gaging of low flows in the zero to 30 cfs range. A stable streambed Is needed for gag1ng. The roc~s wl11 be angled across the entire river.