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NTTA Board Approves Schematic Design and Environmental Evaluation for the DNT Extension The northern expansion of the Dallas North Tollway moved one step closer to becoming a reality on June 15 when the NTTA Board of Directors approved the schematic design and environmental evaluation for Phase 4B/5A, which will extend from FM 428 to FM 121 in Collin, Denton and Grayson counties.
Although the actual timing of the design and construction has yet to be determined, the DNT Phase 4B/5A project includes the following elements:
- Construction of a six-lane tollway with three northbound lanes and three southbound lanes
- Construction of six lanes of non-tolled frontage roads, including three lanes in each direction
- Pairs of entrance and exit ramps at 19 locations along the roadway
- Construction of new bridges over Little Elm Creek and its tributaries
- All necessary drainage, signage and striping, illumination, and toll infrastructure
Two stakeholder working groups were formed in 2009 comprised of technical- and executive-level representatives from area governmental agencies. The NTTA also developed a comprehensive outreach plan that included five technical stakeholder work group meetings, four executive stakeholder work group meetings, two public meetings in March 2010 and presentations to several others. Members of the various work groups represented the four cities and four counties in the study area.
Approximately 75 North Texas residents attended a public hearing on April 19 in Celina to learn details and provide comments about the extension project. The purpose of the public hearing was to present planning information, including the proposed schematic design and the environmental evaluation, for the proposed tollway.
Project information, schematic maps and the environmental evaluation are available at www.ntta.org.
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