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Waller Creek Flood-Management and Water Quality Improvements

Summary

A 1996 study developed a flood-management plan for the lower Waller Creek watershed (E. 15th to Town Lake). A water quality master plan for the entire Waller Creek watershed was also prepared. Architectural review of the proposed improvements was conducted to ensure compatibility.

Status

Funding for the project was approved by Austin voters on May 2, 1998. On September 25, 1998 the City issued a Request for Qualifications for selection of the project design engineer. Evaluation of the eight qualification statements received and interviews of five of the applicants have been completed. The Austin City Council awarded the engineering services contract to the Brown & Root, Inc. / Espey Padden, Inc. Joint Venture on January 20th. The LCRA has withdrawn its offer to provide project management services. The project will be managed by the City of Austin.

Description

The tunnel will be 22 feet in diameter, 5,500 feet long and will intercept creek flows in Waterloo Park below 15th Street and discharge to Town Lake. The project will remove 42 commercial and residential structures and 12 roadway crossings from the 100-year floodplain.

The natural baseflow (the sustained flow in a stream) of Waller Creek will be preserved and augmented by re-circulation of water through the tunnel, a water quality benefit. The diversion of flood flows will allow development along the banks which is currently prohibited by floodplain ordinance.

In addition, the project will include stabilization of eroding stream banks from Fifth Street to Town Lake to protect properties and also improve water quality.

The proposed tunnel is expected to take approximately twentyfour months to plan and design and two years to construct.

Basic Data

Project Contact: Gary M. Kosut, P.E., Watershed Protection Utility, 499-3374
Estimated Project Cost: $25,378,000

Revised January 15, 1999

Back to the January 1999 Contents


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