Highland Park Lakeside Drive Wastewater and Roadway Improvements Project
In 2022, the Town of Highland Park and University Park will be rehabilitating approximately 3,400 linear feet of 30-inch wastewater pipeline under Lakeside Drive from Armstrong Avenue to Beverly Drive. The project will include the reconstruction of Lakeside Drive along with some waterline improvements. A separate project will include landscaping improvements to Lakeside Park.
About the Project
Built in the 1930s, the Turtle Creek Wastewater Interceptor is a 30-inch diameter pipeline that runs through the central part of the Town. The pipeline collects and conveys flow from SMU, University Park, and the Town. It runs through the Dallas Country Club and along Turtle Creek where flow is ultimately discharged into the Dallas Water Utilities Wastewater Collection System south of Wycliffe Avenue.
Recently, the Town and City conducted a multi-sensor inspection (MSI) on the pipeline. A raft with laser and sonar instruments was sent through the pipeline between manholes to measure corrosion and identify infiltration points, wall thinning, and sediment debris levels. Based on the data collected, the Town has identified the section along Lakeside Drive from Armstrong Avenue to Beverly Drive as the first pipeline segment to be rehabilitated or replaced. Groundwater infiltration throughout the pipeline has caused settling and pavement failures within Lakeside Drive. As a result, Lakeside Drive will be fully reconstructed.
The design for this project was divided into two phases.
Phase I included:
- Overall survey
- Base mapping, which includes underground line locating and photographs
- Preliminary Engineering report to evaluate alternatives
- Workshops with Town staff and University Park to review and recommend alternatives
The Town evaluated multiple wastewater rehabilitation or replacement options on a variety of criteria including:
- Hydraulic Capacity
- Expected Life Cycle
- Construction duration and visibility
- Impact to Residents
After weighing the options, the Town and City agreed to select Cured in Place Pipe (CIPP) rehabilitation for the existing main. CIPP rehabilitation is a method in which a contractor inserts a liner into the existing pipe. The new liner cures inside the host pipe. Even though it uses the existing pipe as a form, once cured, the new liner acts as a structurally independent, monolithic pipe.
Phase II includes:
- Engineering design of wastewater rehabilitation, roadway reconstruction, and waterline replacement in Lakeside Drive from Armstrong Avenue to Beverly Drive
- Bidding and construction
Based on engineering assessments, the sections of line north of Beverly Drive and south of Armstrong Avenue will be considered for improvements in future years.