Erosion Control Issues at Multiple Sites (May 20, 2018)
The following videos and photos of 11 sites with erosion control issues were taken on May 20, 2018 toward the end of a rain event. The rain event was recorded as 0.90 inches in the neighborhood. The LCRA Hydromet station at West Bouldin Creek (1301 Oltorf St) recorded 0.64 inches. Most of the erosion occurs during the middle of the event but much of the evidence of erosion is swept away by the end.
Video of 2105 Ashby - This video shows the muddy runoff coming off 2105 Ashby. This site is in the Barton Springs Zone.
Video of 1113 Azie Morton - This property is in the Barton Springs Zone. The silt fence is not functioning. Muddy water is flowing right through a gap or tear in the silt fence. From here it flows about 300 feet down the road where it drains into Little Zilker Creek which almost immediately crosses the recharge zone.
Video of 2010 Goodrich - Muddy water is cascading down the driveway and then flows to the storm drain.
Video of 1705 Juliet - Runoff is leaving the property through the eroded channels that have been cut. The runoff is fairly clear at this point as eroded sediment has already left the site and the flow is slowing down.
The first six photos along Ashby Avenue demonstrate this and are particularly instructive. The first five photos show the muddy runoff occurring during the rain because of missing erosion controls. The last photo on the page shows how virtually all evidence of the sediment leaving the site is gone. It has all been swept down the gutter and into the storm drain.