The speed limit for frontage roads along SH 121 in Lewisville will be reduced to 50 mph beginning Aug. 17.
The roads currently have 60 mph and 55 mph speed limits.
The Texas Department of Transportation found that Lewisville had a high crash rate on the roads, according to a release from the city of Lewisville. There is also high driveway density along those roads.
The speed limits for frontage roads in Coppell, Carrolton and The Colony are also expected to slow to 50 mph, allowing for a consistent speed when entering or exiting Lewisville on the access roads, the city shared.