Houston's freeway system is made up of 575.5 miles of freeways and expressways in a ten county metropolitan area. Its highway system uses a hub and spoke freeway structure serviced by multiple loops. The innermost loop is Interstate 610, which encircles downtown, the medical center, and many core neighborhoods with around a 10 mile diameter.
Beltway 8 and its freeway core, the Sam Houston Tollway, form the middle loop at a diameter of roughly 25 miles. A proposed highway project, State Highway 99 The Grand Parkway, would form a third loop outside of Houston. Currently, the completed portion of State Highway 99 runs from just north of Interstate 10, west of Houston, to U.S. Highway 59 in Sugar Land, southwest of Houston, and was completed in 1994. www.houstontx.gov |
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Houston also lies along the route of the proposed Interstate 69 NAFTA superhighway that would link Canada, the U.S. industrial Midwest, Texas, and Mexico. Houston auto ins. | county tax offices | answering service | TXDOT |
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