This is a short bypass of approximately 5 miles. However, there are six turnouts for law enforcement and 4 traffic cams. Speed limit from Brentwood is 55 mph but about a mile west, it becomes 65 mph. California Highway Patrol regularly monitors this small section of freeway using radar (not sure what kind, however). On some days there are at least 3 patrol cars in the area. The wise driver watches the speed limit signs both ways since it is easy to miss them and find oneself in a lower speed limit zone making it easy for traffic enforcement officers to pull one over.