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.

Project Status

As of June 24, 2020, the heavy construction work is finished and we are on track to complete the project by mid-July. The construction area may remain fenced off on a temporary basis after the project is complete to protect new vegetation and allow it to become established. The Shoal Creek Greenbelt Trail is still detoured to the sidewalk of North Lamar. The sidewalk will remain open throughout construction.

Project Details

The project will protect two heritage trees and prevent the loss of more parkland due to erosion. Since the landslide, the bank of Shoal Creek has eroded at least 20 feet. The project will also partially restore flood capacity of the creek. The project includes:

  1. Partial removal of debris from Shoal Creek
  2. Widening of creek to route water around the remaining material from the landslide
  3. Stabilizing the southeast bank of Shoal Creek to stop further loss of park land.
  4. Continued monitoring and removal of any additional material that slides into the creek.

This project helps address public safety issues that arose from the landslide and helps protect public property and infrastructure. It does not include a slope stabilization component.

Austin Water and Austin Parks and Recreation will also pursue separate projects to construct a permanent, new wastewater line and reconstruct a segment of the Shoal Creek Greenbelt Trail. Staff will seek community input for the trail.

Map

Map showing slope failure, trail detour and affected utility lines

The map shows where the landslide occurred and the trail detour. Click on the map to see a larger, printable version.

Background

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 Greenbelt 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.
  • An stormdrain outfall on Wooldridge Dr. was damaged.

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.

Public Meeting

A public meeting was held in July 2018.

Wooldridge Dr. Emergency Storm Drain Project

We have rerouted a storm drain system on Wooldridge Drive.

Documents

More Information

Please contact Stephanie Lott with questions. Stephanie can be reached through email or at 512-974-2799.