The second phase includes overpasses, making the road less congested and allowing drivers to spend less time in traffic, Texas Department of Transportation spokesperson Ryan Lafontaine said.
The third phase is still in the design phase, but construction is estimated to begin in 2021.
TxDOT started construction on US 380 to widen the roadway from five lanes to a six-lane freeway with eastbound and westbound access roads.
“As North Texas continues on this path of such rapid growth, each of these projects along US 380 are
vital to our goal of maintaining a safe and efficient highway system,” Lafontaine said.
According to the city of Frisco, US 380, along with the Dallas North Tollway and the Sam Rayburn Tollway, experience heavy traffic because the roadways provide regional mobility between different counties and cities.
The first phase of the project started in September 2014 and ended in fall 2016 from Custer Road to Lovers Lane.
TxDOT started construction on the second phase in March 2016, which is a 2.6-mile stretch from Lovers Lane to just west of CR 26. Construction includes overpasses at the Dallas North Tollway and Preston Road.
According to TxDOT, current construction includes applying structural concrete, paving and excavating the roadway.
The third phase of the project is an almost 15-mile stretch starting in Frisco just west of CR 26 to Loop 288 in Cross Roads, Texas.
Lafontaine said as construction continues on US 380, TxDOT works closely with the cities for any changes that may occur.
The cities operate the traffic signals on the roadway, and if there are traffic switches or closures, the cities will communicate with drivers through road signs or city websites.