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• generally show through the vegetation. A review of the cross-section shows that this azea <br />has been very stable over time and has, in fact, improved since the original spring 1992 <br />measurement. <br />Cross-section 2 This area has vegetation on the side slopes and on the bottom of the <br />channel. Rock in the base azea of the feature vazies from 1 to 5 inches in diameter. <br />Monitoring to date indicates this channel section is stable. <br />Cross-section 3 Vegetation is established on the side slopes and on the bottom of the <br />channel. Rock fragments in the channel bottom vary from 1 to 9 inches in diameter and <br />aze providing good armoring. Vegetation in the flow azea of this section was in place and <br />undamaged showing only slight degradation from previous yeazs. <br />Cross-section 4 This area is noticeably steeper than the channel above and is on the <br />lower edge of the bonded strip. Flow in the channel appears to be concentrating into a <br />single deeper channel. Although the channel deepened slightly according to survey data, <br />visual evidence at the cross-section does not show heavy erosion. In fact, the sides and <br />bottom of the channel in this area aze better vegetated than in yeazs past. <br />Cross-section 5 This cross-section of the channel is located on an extremely steep section <br />of hillslope on bond released land and is being monitored only to predict how this area <br />• might affect that of the bonded portion. Vegetation is present on the side slopes of the <br />channel and some was noticed in the bottom. Rock size in the channel varies from 2 to <br />12 inches in diameter and the channel generally appears well armored. The broadening of <br />the channel on the south side is the result of an ancillary flow path whose confluence <br />occurs at this location. The area did exhibit significant deepening which is believed to be <br />caused by some downslope movement of the channel bottom armor. The stretch of <br />channel immediately above the cross-section location does not appear to be "head- <br />cutting". <br />Based on the data collected from the five cross-sections and a general survey of the area <br />this concentrated flow feature does not appear to be experiencing excessive erosion. Therefore, <br />no mitigative measures are proposed for this concentrated flow feature at this time. <br />GOAT TRAIL EXTI' CHANNELS <br />Transects were measured at the three constructed exit channels along the Goat Trail. The <br />location of these outlets are shown on Exhibit 1, Sheet 2 of 2. The channels were measured <br />across monuments placed in 1993 and compared to evaluate erosion activity. The survey results <br />are shown graphically in Appendix B. Each of the three drainage areas had cross-section <br />measurements taken at two locations. <br />• <br />18 <br />