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At PRIME AE, our team members discover fulfilling and impactful work that makes a difference in their lives.

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Restricted Crossing U-Turn (RCUT)

Restricted Crossing U-Turn (RCUT)

Innovative intersection improvements drive traffic safety and efficiency.

Three Kentucky intersections—one in Marshall County and two adjacent intersections in McCracken County— suffered from a high percentage of angle collisions. To protect the safety of those on the road and decrease crashes, the state of Kentucky called on PRIME AE to design a solution. Relying on a long-standing and trusted relationship, Kentucky awarded our team with the third Highway Safety Improvement Program (HSIP) contract to convert the intersections to Restricted Crossing U-Turn (RCUT) intersections, also known as J-turn intersections.

The complexity of the project required a multi-faceted design solution to keep traffic flowing while curtailing collisions. Because of free-flowing mainline traffic and additional sight distance required for heavy vehicles using the intersection, more time was needed for trucks to complete the U-turn maneuver and reach a safe speed. For the two intersections in McCracken County, the U-turns also needed to be located so that sight distance for both was not impeded by the adjacent U-turn point. We designed the loons with radii to accommodate heavy vehicles while allowing all work to be completed within existing right of way.

Median islands were designed to accommodate large vehicles, while still providing channelization to prevent vehicles traveling in the wrong direction through the RCUT. Striping, signing, and drainage design rounded out the RCUT plans.

The highly complex project was assigned at the end of September, the preliminary review meeting was held in early December, and final plans were submitted the following April — a span of only six months. Construction was completed and all three RCUTs were opened to traffic only two years after initial assignment, making drivers in Marshall and McCracken counties safer on the road.

Client / Owner

KYTC District 1

Key Features

Key Feature
Traffic Analysis
Innovative Intersections
Drainage Design
Traffic Engineering—Signing and Pavement Markings
Utility Coordination
Survey and Inventory

Project Achievements

Every project we undertake serves as a wellspring of knowledge and experience, feeding our collective growth and paving the way to optimize outcomes, leverage efficiencies, foster collaboration, and advance innovation. Throughout the journey of this project, these accomplishments have been instrumental in its overall success and have fortified our collective expertise.

We’re Excited For The Future We Can Build Together

For more than a decade, we’ve been delivering solutions for the places we live, learn, laugh, and grow. Give us a call to learn how we can help you.