Interstate 45 (I-45)

Dallas, TX to Galveston, TX via Houston

Interstate 45

Dallas, TX to Galveston, TX via Houston

Interstate 45 is the primary corridor between Dallas and the Gulf Coast, passing through Houston — one of the largest and most congested freight hubs in the United States. The stretch through Houston's urban core, particularly near the Ship Channel and the I-45/I-610 interchange, consistently ranks among the deadliest highway segments in the US by absolute fatality count. Extreme congestion, aggressive driving, construction zones, and a driver population accustomed to high speeds create an environment where commercial vehicle accidents are frequent. I-45 is also the primary Hurricane evacuation route for Houston and the Gulf Coast, creating periodic extreme-density emergency traffic conditions.

Length
286 miles
Risk Rating
HIGH
Risk Factors
Extreme Houston urban congestion — one of US's deadliest corridors Aggressive high-speed driving culture Hurricane evacuation route — extreme periodic congestion Flood risk in low-lying Houston sections and near Galveston Dense construction zone network I-45/I-610 interchange complexity
Notorious Segments
  • I-45 through Houston Ship Channel area
  • I-45/I-610 interchange (North Loop)
  • Galveston causeway approach (I-45 south of Texas City)
Connected Hubs
Houston Dallas
Regions
United States South Texas