Construction of the second phase of the Dallas Parkway widening project begins this month. The project will add a lane to the southbound and northbound frontage road at Lebanon Road. The third and fourth phase of the project will also begin this year and will add lanes at Eldorado and Panther Creek parkways. Timeline: January 2017-September (Phase 2), July-December 2019 (Phase 3 and 4) Cost: $11.9 million (Phase 1 and 2), $5.1 million (Phase 3), $2.3 million (Phase 4) Funding sources: city of Frisco, Collin County, TxDOT