Northbound Dallas Parkway faces $7.5 million overhaul before toll road opens
Prosper officials signed a $10 million deal with Mario Sinacola & Sons to upgrade frontage roads in anticipation of the Dallas North Tollway expansion.
By Arjun Weber ·
$7.5 million. That is the total cost of the upcoming repairs to northbound Dallas Parkway in Prosper, a figure that includes the main construction contract and associated design and testing fees. The town council approved this spending at an Oct. 27 meeting, setting the stage for major infrastructure work in the coming months.
Hulon T. Webb Jr., the town’s director of engineering services, stated that these repairs are necessary to prepare the frontage road for the increased traffic volume expected from the future Dallas North Tollway. The newest segment of that tollway, running from US 380 to FM 428, is scheduled to open in late 2027 according to the North Texas Tollway Authority.
The council authorized a $10 million contract with Mario Sinacola & Sons Excavating. This firm is already constructing the DNT extension. Of that total, $7.2 million is allocated specifically for the Dallas Parkway construction. Town documents show that an additional $98,700 will cover design services and $113,035 will pay for construction materials testing.
Construction crews will target sections of Dallas Parkway near intersections with First Street, Prosper Trail, and Frontier Parkway. Webb confirmed that while work will occur near these crossroads, east-to-west traffic flow will remain unaffected.
The remaining $2.8 million of the Sinacola contract addresses improvements to Frontier Parkway near the DNT underpass. This follows previous coordination with Collin County and the city of Celina to widen the road east of Dallas Parkway. That section now features four lanes plus an extra westbound lane at the Dallas Parkway intersection.
Prosper officials must widen the portion of Frontier Parkway west of Dallas Parkway to utilize the expanded underpass built by the tollway authority. An additional $45,000 design contract brings the total cost for the Frontier Parkway improvements to $2.9 million.
Town officials expect work to begin in late January or early February of 2027. The project has a 120-day timeline. Officials are still determining whether to stagger the closures or close all affected sections simultaneously. Webb described the goal as completing the work quickly with minimal disruption.
