Austin, Minnesota Speed Traps
On the on ramp following exit 175 has enough room for them to hide behind the bridge while you pass past the on ramp.
On exit 177 they hide on the down ramp facing oncoming traffic and radar cars as they come around the corner or go past the bridge as to they are hidden unless this trap is known. They have been using this one very frequently I have saw at least two cops there this week.
I-90 East of Austin, MN. State Patrol uses instant on or pulse radar. Unmarked cars.