MTJ Roundabout Engineering provided the roundabout analysis, final horizontal design, and peer review for these closely spaced roundabouts. They are located at CTH CB and STH 15 (north) intersections and CTH CB and W. Greenville Dr./CTH GV (south). Additionally, we provided horizontal designs, vertical design recommendations, and signing and pavement markings. WIDOT contracted MTJ for the north roundabout and OTIE for the south roundabout.

MTJ’s design recommendations provided capacity for the interim to long-range. The north roundabout was built to a long-range design.

MTJ’s experience played a pivotal role in designing this roundabout solution that provided an excellent service with safe and optimal business access and circulation for the adjacent businesses.