With increased traffic volumes and speeds along Scotch Ridge Road in front of the Carlisle Middle School, the City of Carlisle was looking for options to slow the speed of traffic as well as provide an efficiently corridor at this location. McClure was hired to aid the City in the development of the project, including performing a traffic study and guiding a panel of citizens through a series of meetings to provide feedback to the City. Through the traffic study, the McClure team was able to identify operational issues along the corridor and provided recommendations to mitigate these problems. Additionally, pedestrian accommodations were of particular concern because of the existing Carlisle Middle School on Scotch Ridge Road and the location of a high number of projected residential housing developments on the opposite side of Scotch Ridge Road. The queuing of parent drop-off and pick-up from the school onto Scotch Ridge Road was an important consideration during the study process as different alternatives were evaluated.

Through the panel discussions and traffic study recommendations, the City of Carlisle settled on the single lane roundabout at the entrance/exit of the school, which includes a slip-lane for right-turn entrance into the school property. Additionally, the project identified the need for new traffic signals at the intersection of Scotch Ridge Road and Iowa Highway 5, advanced warning flashing beacon on Iowa Highway 5 to alert advancing motorists of pending red-light activation at upcoming signal, new sidewalks and trails along Scotch Ridge Road and crossing of Iowa Highway 5, school sign relocation, right-of-way acquisitions, signing, and detailed staging. McClure worked with the Des Moines MPO to receive additional funding for the project and was responsible for the design of the project.