Laserfiche WebLink
<br />. <br /> <br />community monitoring in the river from 1999 and 2005 indicates that the health of the river is good <br />to excellent. <br /> <br />Habitat availability in the Blue River through the Mt. Powell Ranch during low flow periods is now <br />excellent as estimated by trout habitat rating$ and river cross sections. Pool quality in the Blue River <br />through the Mt. Powell Ranch as dermed by Width has increased from 5%-10% of the bankfull width <br />to pools being 20%-70% of the bankfull w~dth after restoration. Mean depths of the Blue River <br />through the Mt. Powell Ranch have improved as indicated by river cross sections, especially during <br />periods of low flow. Pool quantity of the Blue River through the Mt. Powell Ranch has improved <br />from one pool every 2-3 bankfull width to a minimum of one pool every bankfull width and some <br />areas more frequent than this. Channel stability ratings of the Blue River through the Mt. Powell <br />Ranch also substantiate that irriprovements have occurred. Anchor icing, which forced migration <br />of fish into other areas of the river and to areas downstream in Green Mountain Reservoir during <br />winter, has been alleviated in the project area. A primary benefit of the Blue River Fish Habitat <br />Improvements has been creation oflong term, stable fish habitat that provides resident fish with the <br />necessary habitat that allows them to reside at high standing crops during all seasons in the reach of <br />the Blue River through the Mt. Powell Ranch without seasonal migration. Observations ofKokanee <br />spawning runs prior to this project indicates that few fish made it through the reach of the Blue River <br />on the Mt. Powell Ranch. Fall fishery sampling since completion of the Blue River Fish Habitat <br />Improvements has identified large congregations of Kokanee salmon in areas on the upper end of <br />the Blue River on the Mt. Powell Ranch near Slate Creek. . <br /> <br />It is reasonable to deduce from monitoring that as a result of the Blue River Fish Habitat <br />Improvements the Blue River is capable of supporting the resident biota and environment to a <br />reasonable degree at flows lower than those predicted and adjudicated to the Colorado Water <br />Conservation Board in its Instream Flow Decree (Case No. 87CW298) for this reach. Furthermore, <br />due to increases in riparian/fishery habitat availability, increases in riparian vegetative diversity <br />(oxbow ponds and wetlands), and re-connection of the river with floodplain habitats; that if operated <br />with a reasonable flow-sharing agreement the Colorado Water Conservation Board's ability to <br />protect the environment to a reasonable degree is enhanced by this project. <br /> <br />Page 10 of 10 <br /> <br />. <br />