Laserfiche WebLink
<br />RESULTS <br />site Characteristics <br />Little Dry Creek flows in a relatively small valley incised <br />into bedrock and filled with alluvium. Bedrock confines the <br />stream, but Little Dry Creek has cut a wide enough valley that <br />alluvial fill several feet thick and tens of yards wide occurs. <br />The width of the valley fill system varies and bedrock is exposed <br />on the stream banks and stream bed in several locations. <br />The stream banks in many locations rise vertically several <br />feet above the creek. One or two small terraces or sloping <br />surfaces occur and many of the larger trees are growing on land <br />that is 3 to 5 feet above the stream channel. <br />The riparian zone is generally narrow, ranging from <br />approximately 30 to 80 feet wide. Homes on small acreages occur <br />in the area of interest. <br /> <br />HVdroloqv <br />On my first visit to the study area I observed that the <br />stream channel was incised, in many areas it had a bedrock bottom <br />and bedrock was exposed in several areas along the banks. I <br />hypothesized that Little Dry Creek was incised completely in <br />bedrock and that little connection between the ground and surface <br />water systems would be found. However, the data collected on- <br />site do not support this hypothesis. <br />The three staff gauges shown in Figure 2 have similar <br />hydrographs responding simultaneously to two large runoff events, <br />one in early June and one in late August. A smaller event in <br />early July also was recorded at all stations as well. What is <br />striking about these hydrographs is how quickly the water levels <br />rise and fall. Storms cause water levels to rise for only one <br />day. <br /> <br />4 <br /> <br />e <br /> <br />e <br /> <br />e <br />