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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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Explore our impressive track record of achievements, awards, and professional affiliations, solidifying our position as recognized industry leaders.

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KY 11 Roadway

KY 11 Roadway

Saving lives and preventing roadway injury.

KY-11 is a state highway that runs nearly the entire length of Kentucky from north to south. A rural section of KY 11 in Powell County had a significant curve that saw a high rate of vehicular crashes, including one fatal collision. Many of these crashes were roadway departure crashes that occurred during wet roadway conditions on the narrow two-lane road with limited shoulders. This curve also had a lower design speed and smaller radius than adjacent curves, and sight distance was limited due to a steep backslope along the inside of the curve.

To decrease the potential for collisions, PRIME AE analyzed the curve and determined that water was running along the driving lanes due to deficient superelevation transitions. From there, we developed a range of options for realignment of the curve that met various design speeds while balancing construction cost, potential crash reduction, and utility and right of way impacts. The preferred scenario achieved a 45-mph design speed and cut back the slope inside the curve to increase sight distance.

Our team’s work supported a significant increase in safety for drivers along this dangerous stretch of road. In the three years prior to construction, there was an average of 16 total crashes per year along the corridor, with an average of four KAB (fatal, serious injury, and minor injury) crashes occurring per year. In the two years following construction, those numbers dropped to an average of five total crashes and 0.5 KAB crashes occurred per year, and the increase in safety for drivers is invaluable.

Client / Owner

KYTC District 10

Key Features

Key Feature
Curve Realignment
Safety Improvements
Superelevation Improvements
Drainage Design
Right-of-Way Plans
Signing Plans
Survey

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.

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