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Roads Good to know

SH 99 Grand Parkway Runs Through the County

Montgomery County Cars & Driving

The SH 99 Grand Parkway is a toll road that loops around the greater Houston area. It passes through the southern part of Montgomery County and connects to major freeways. For commuters, it offers an alternative to congested US 59 and I-45 corridors.

TxDOT designates SH 99 as part of the regional hurricane evacuation network for the Houston area. If a storm threatens the Gulf Coast, this road may be part of contraflow or directed evacuation plans. Check drivetexas.org for real-time road conditions before and during any weather emergency.

Content last revised 2026-07-11

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Place pages in Montgomery County

ClevelandConroeCut and ShootHoustonMagnoliaMontgomery

Nearby county shelves

San Jacinto (6) Walker (14) Harris (64) Grimes (10) Waller (19) Liberty (21)