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ThrU Turns in Missouri

What are ThrU Turns?

ThrU Turns are a type of signalized intersection that helps improve traffic flow for individuals turning left.  The basic concept is that the vehicle drives through the intersection, makes a U-turn at a signal that is a few hundred feet past the intersection and then drives back to a right turn off the main roadway.

The concept is similar to that of a driver who is trying to turn left out of a business onto a busy road.  Because traffic levels are high, they choose to turn right, make a U-turn and then follow the roadway back.  These types of intersection are safer than a typical left-turn, as the chance of a side or "T-bone" crash is greatly reduced. 

Here's a brochure on ThrU Turns (pdf)

How to get to each side of the Route 141 ThrU Turns

Getting from northbound Route 141 to Vance (pdf)

Getting from northbound Route 141 to Meramec Station (pdf)

Getting from southbound Route 141 to Forest Ave (pdf)

Getting from southbound Route 141 to Marshall Road (pdf)

 
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