The USA Parkway I-80 interchange at the Tahoe Reno Industrial Center will open 11 a.m. Thursday.
The four-lane parkway is the main road through the 104,000-acre Storey County business park about seven miles east of Sparks.
The $25 million project includes a bridge over the Truckee River at the former Tracy-Clark exit.
Builders are about halfway done with the 18-mile road that will eventually intersect with Highway 50 in Lyon County.
Roger Norman is the developer for the project and Lance Gilman is the broker.