Starting at midnight tonight, the Grand Parkway bridge over I-10 will be closed as part of the ongoing Katy Freeway project. The closure should last several weeks:
The northbound and southbound frontage roads of SH 99/Grand Parkway will be reconstructed as part of the Katy Freeway Reconstruction Program.
In the new configuration, the frontage roads of SH 99 will go underneath the mainlanes of I-10.[snip]
From the north side of I-10 motorists destined for SH 99 southbound will be detoured via the I-10 westbound frontage road to u-turn at Katy-Fort Bend Road onto the I-10 eastbound frontage road to access SH 99 southbound.
From the south side of I-10, motorists destined for SH 99 northbound, will be detoured via the I-10 eastbound frontage road to Mason Road to turn back onto the I-10 westbound frontage road, to make a right on Westside Parkway, a left on Colonial Parkway and a final right onto SH 99 northbound.
