Pfefferkorn Engineering & Environmental

Welcome to our corner of the sandbox. Bringing infrastructure projects to fruition through our talented team of technical professionals.

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Pfefferkorn proudly partnered with Killough Construction and the Kansas Department of Transportation Iola office to deliver critical improvements along Kansas Highway 31. The project enhanced the pavement structural integrity of the corridor and improved safety for motorists traveling through southeastern Kansas.

This narrow route—characterized by limited or no shoulders and steep roadside grades in several areas—presented unique construction challenges. Although the contract included pavement patching, the volume and varying depths of individual repair locations required careful coordination and execution. Killough’s leadership and field crews approached each repair with attention to detail, ensuring every patch restored both the roadway’s integrity and long-term performance.

Pfefferkorn’s inspection and materials testing team worked closely with the contractor to support quality construction and efficient progress. Killough maintained safe traffic flow throughout construction and communicated proactively with residents and stakeholders along the corridor to minimize disruptions. Their team remained highly responsive to inspection staff and quality assurance personnel, fostering open communication and timely resolution of field issues.

Under the daily leadership of Field Foreman Wayland Meiers, the project maintained strong focus on both immediate field details and overall project objectives. The result is a safer, more durable roadway serving the Mapleton community and the broader southeastern Kansas region.