Collin County has recently completed construction of two south bound lanes along future North Dallas Pkwy. Residents can now use two lanes on each side from US 380 to FM 428.
Phase 4A - The overpass at DNT and US 380 is currently under construction, while main lanes from US 380 to FM 428 are currently under design and are expected to be completed and open to traffic by 2025.
Phase 4B - NTTA has started construction on two lanes from FM 428 to Grayson County Line, and this project should be complete by late 2022 / early 2023.