The Missouri DOT(MoDOT) added a splash of color to numerous state landmarks in an effort to remind motorists to use caution in highway work zones. Water in Kiener Plaza's fountain, in the shadow of the famous Arch in downtown St. Louis, was dyed orange. Also, the four columns in front of MoDOT Headquarters in Jefferson City were lit to honor the four state highway workers killed in 2006.

The event marked the start of the first construction season since the state's August 2006 enactment of tougher penalties for reckless driving through work zones.

Visit www.modot.org.