Gail Delaughter/Houston Public Media

The Grand Parkway between Interstate 10 and U.S. 290 will be expanded from two to three lanes in each direction to help ease traffic congestion in a part of Harris County that is being rapidly developed.

Leo Flores, a spokesperson for the Texas Department of Transportation (TxDOT), said the $157 million project is funded through toll revenue collected on the Grand Parkway, also known as State Highway 99.

"I think the big question is, is my toll going to increase?" Flores said Thursday during an appearance on Houston Matters . "And the answer is no, the tolls are not going to increase as a part of this project. The funds have already been allocated."

Improvements to existing infrastructure along the stretch of toll road, which runs between the Cy

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