The quarter-mile portion of Stonebrook Parkway between Dallas Parkway and Parkwood Boulevard, closed for months, will be passable for traffic in late August.

Jason Brodigan, the city of Frisco's engineering division manager, said there will be access to Frisco High School on Stonebrook from the east and west when school starts.

The engineer said city staff is not sure how many lanes will be open, but Stonebrook will be passable even as the third phase of construction continues to widen the road to six lanes.

"The remainder of the lanes should be completed in September as long as the franchise utility conflicts are cleared in the next few weeks as expected," Brodigan said.

Phase 2, from Parkwood to Preston Road, is also in progress, but various lanes remain open as they have been throughout the phase.

Construction phases 2 and 3, expected to be completed in September, will widen Stonebrook Parkway to six lanes from the Dallas North Tollway to Preston Road. A

36-inch water line running the length of the section will also be completed.

The fourth phase, a short section of Parkwood west of Dallas Parkway, is under construction to extend and widen turn lanes, along with additional paving projects between Dallas Parkway and Parkwood. It will complete the $12.1 million city of Frisco project and is expected to be finished in May 2014.

Phase 1 of the project, which included construction of westbound dual left turn lanes on Rolater Road just east of Preston Road, was completed in November 2012.

Additional Stonebrook project

An additional Stonebrook Parkway project on the west side of the Dallas North Tollway is in progress.

The new section of road will connect Stonebrook from Fighting Eagles Lane to Longhorn Trail, meaning Stonebrook will be connected from FM 423 on the west side of Frisco east past Preston Road.

The section is scheduled to be completed spring 2015.The $15.75 million collaborative project is funded by the city of Frisco ($6.15 million) and the Texas Department of Transportation and the North Central Texas Council of Governments ($9.6 million).