DESTIN — The massive $75 million expansion of U.S. Highway 98 remains on schedule, according to the Florida Department of Transportation.

How much all that funding will improve traffic flow — particularly during the summer months — remains to be seen.

Currently, two sections of U.S. 98 are being widenend.

The Walton County expansion, from Emerald Bay Drive in Destin east to Tang-O-Mar Drive in Miramar Beach, costs $42 million and is scheduled to be finished by mid-2020.

The second project area, from Airport Road in Destin east to the Okaloosa-Walton County line, costs $33.5 million and is expected to be finished by early 2021.

FDOT spokesman Ian Satter said construction is going smoothly for the most part.

"Minor weather issues have been the only minor concern, but the project is continuing to move along quite well," Satter said.

Construction along the north side of the highway between Airport Road and Matthew Boulevard has been completed and includes new sidewalks, curbs and gutters.

During much of the project, both eastbound and westbound lanes have either been shifted or rerouted to make way for construction.

"(On) Nov. 5, crews shifted the eastbound travel lanes to the north, between (the) western boundary of Henderson Beach State Park and Matthew Boulevard," Satter said. "This traffic shift provides a work zone on the county side of the roadway to construct the new eastbound travel lanes, bicycle paths and sidewalks."

From Ken Way Circle east to the county line, crews are building a new drainage system and a temporary lane through the median. Eastbound and westbound lanes have been moved to the outside of the original highway during the drainage construction.

All temporary routes are expected to continue into 2019.

"(These) projects will deliver transportation and economic development benefits that include increased capacity, reduced congestion, improved safety and support for regional economic development initiatives," Satter said.

For more information on the U.S. 98 work, visit nwflroads.com/currentprojects.