As you drive north on I-494 approaching County Hwy 6 in Plymouth, there is very often a Plymouth Police Officer running a trap at the end of the on ramp, from Hwy 6 onto I-494. There is a downhill slope approaching this area, and as you near the overpass of Hwy 6, you are suddenly exposed to him (from behind the overpass) on the right side of the road, where the traffic from Hwy 6 merges to I-494. The posted limit there is 60mph, however, they seem to let traffic blow by regularly at nearly ten over the limit.