Columbus, Montana Speed Traps
Two consecutive traps around markers 394 and 406.
Around mm 394 construction zone with clearly marked reduced speed at entry, multiple signs, reduced to 1 lane traffic. In the middle of the down grade a single posting to 45. Patrol waiting below the sign.
A few miles closer to Columbus exit is again a construction zones with 1 lane traffic, in the case devolves to undivided highway. Entry is clearly marked as a speed reduction to 65 with clear alerts to the reduced speed ahead and posting of reduced speed.
Upon exiting of undivided section with oncoming traffic speed is reduced to 45 mph for the length of the crossing the bridge over county 78 (Sheep Dip Rd). Patrol sits on the far side of the bridge.
In both cases the drop to 45 is unexpected and only intended for enforcement, not to be observed.
Highway patrol, as well as City police, have been know to chase cars without lights or sirens to get them to speed.