Native Planting for a Sustainable Interchange
The I-64, Kingshighway interchange has a traffic volume of up to 30,000 vehicles daily.
Signage was being updated at what is considered the entrance to Washington University’s Medical School campus at the intersection of Kingshighway Blvd. and Interstate 64. Signage is in large triangular islands surrounded by exit ramps from the highway. The existing landscape at the interchange included 25,000 sq. ft of turf with traditional planting beds of shrub-roses, daylilies, Russian sage, and clusters of holly trees in four traffic islands. The turf required weekly maintenance, and vehicles regularly crossed-over curbs damaging …