SR 240 continues across the Yakima River Delta as a fully grade-separated freeway, fronted to the west by a branch of the Union Pacific Railroad and the east by the Sacagawea Heritage Trail. The freeway narrows to six lanes at an interchange with the Columbia Park Trail in the Richland Wye and to four lanes at a partial cloverleaf interchange with Columbia Center Boulevard, located north of the Columbia Center Mall and the Toyota Center. SR 240 enters Kennewick after the interchange and continues along the south side of the Columbia River and Columbia Park, passing north of suburban neighborhoods and the Vista Field airport, which closed in 2013.
SR 240 is a freeway that runs across the Yakima River Delta, with grade separations at key points. It's bordered by the Union Pacific Railroad to the west and the Sacagawea Heritage Trail to the east. The freeway narrows down to six lanes near an interchange with Columbia Park Trail in the Richland Wye and then to four lanes at a cloverleaf interchange with Columbia Center Boulevard, which is located north of the Columbia Center Mall and Toyota Center. SR 240 continues through Kennewick after this point, running along the south side of the Columbia River and Columbia Park, passing by suburban neighborhoods and the closed Vista Field airport in 2013.