The Watershed Protection Department is coordinating the response to a slope failure or landslide. The landslide occurred along Shoal Creek just north of Pease Park. We anticipate starting a construction project in July.
Find out more at a pubic meeting at 6 p.m., Thurs., July 19, 2018, at City Hall, 301 W. Second St. The meeting will be in Council Chambers.
Restore the streambank of Shoal Creek and its capacity to handle floodwaters in this area.
Improve stability of the hill for the protection of public parkland, roadways and infrastructure.
Restore the wastewater line under the damaged trail.
Stabilize the hill to allow for phased trail replacement. The initial hill stabilization will serve as a first phase for providing trail connectivity.
The Shoal Creek Greenbelt will be closed from 24th St up to and including the parking lot on Shoal Creek Blvd. and the parking lot entrances on Lamar Blvd.
The detour of the Shoal Creek Trail will be expanded due to the closure of the greenbelt.
Trees will be removed from the area damaged by the landslide. This is necessary both for construction access and to stabilize the terrain. We will be working out a revegetation plan during the design-build process.
Temporary Wastewater Repairs
A temporary pumping system has been set up in the park near the landslide to divert wastewater from the broken wastewater line to an undamaged line. Austin Water started work on an improved temporary repair on June 19, 2018. Gaston Avenue at Shoal Creek Blvd. and a portion of the Shoal Creek Trail will be closed for this work. In addition, two lanes on Lamar Blvd. are expected to close mid-July. You can find additional details in the construction notice in the documents section below.
The map shows where the landslide occurred and the trail detour. Click on the map to see a larger, printable version.
The City is using a special type of contract, called “design-build,” to allow construction to begin as soon as possible. With design-build, plans are being developed and refined while construction occurs. Initial site clearing to obtain design data may begin as early as July 16, 2018. We anticipate it will take at least six months to complete this project, weather permitting. As with any construction project, there may be unexpected issues that could prolong the project.
On Friday, May 4, 2018, there was a landslide on a cliff that overlooks Shoal Creek. No one was injured, but there was significant damage to public and private property.
Part of the Shoal Creek Trail was destroyed.
Debris is partially blocking Shoal Creek. This makes it more likely that Shoal Creek will flood Lamar Boulevard between 24th and 29th Streets. We have removed some vegetation to help offset this risk.
A wastewater line was broken.
Some homes lost large sections of their backyards.
What caused the landslide?
The natural geology of the area is prone to slope failures. Fractured limestone sits on top of a clay layer that weakens when it gets wet. A combination of groundwater and rainfall likely initiated the large failure on May 4.