The speed limit on Telegraph Road (M-24) changes from 45mph to 35mph, at the northside base of the bridge crossing the River Raisin. Thus speed north of the river is set at 45mph, while speed south of and upon the bridge is set to 35mph. Northbound traffic exceeding 35mph will be easily identified, as their inability to see the police vehicle will not allow them time to lower speed. Northbound traffic that has not lowered speed from 45mph while going over the bridge, will be met with a police officer sitting in a small driveway (which leads nowhere, thus was probably desiged for police use) just beyond the bridge’s threshold.