C P & Y, Inc. Honored as
Engineering Excellence Award
John Kilpatrick Turnpike Widening Project
The John Kilpatrick Turnpike is a major thoroughfare in Oklahoma City that provides quick and easy access around the city for its residents. As the most travelled turnpike in the state, it is a key component to Oklahoma City’s overall transportation plan and provides over $29 million yearly in toll revenue to the Oklahoma Turnpike Authority.
The project would take the existing four lane divided facility to a six lane facility with continuous median barrier by widening into the median from MacArthur Boulevard to Eastern Avenue. The widening consisted of the design of 8 miles of roadway, 10 bridge widenings, inspection and repairs to 21 bridges, retaining walls, screen walls and a complicated traffic control plan.
The JKT widening addressed several complex problems with innovative ideas. One of the key elements to the success of this project was the unique reconfiguration of the Lake Hefner Ramp over JKT. The innovative solution involved reconfiguring a median bent to be oriented parallel to traffic along JKT. The bent configuration required combining a two span steel unit and single span steel unit, a conversion that was a first for Oklahoma. Additionally, the BNSF Railroad Overpass required complete reconstruction and a unique design due to the complexity of the track configuration below. Complex construction phasing was required during construction to maintain four lanes of traffic on JKT and BNSF traffic of 30 trains per day.
The CP&Y Team worked closely with the OTA throughout design and construction to ensure that the client’s needs were being met every step of the way. The design addressed safety needs throughout the project corridor, and construction practices minimized disruption to traffic along JKT and its cross streets. The CP&Y Team was asked to complete a large and complex project within half of the original design schedule. This aggressive schedule was met and the plans were well thought through with a constructible design. As such, the project came in on time and over $13M under budget. In completing this project within such a short timeframe, the burden on Turnpike customers was minimized.
There were a total of eight entries in the 2013 Engineering Excellence competition. In addition to the Grand Conceptor, the follow awards were presented:
• Crafton Tull: Tulsa Technology Center Owasso Campus
• Cobb Engineering Company: Port of Entry, Beckham County
• Garver: Falls Creek Water Treatment Plant
• Garver: MAPS 3 Oklahoma River Race Course Lighting
• H.W. Lochner: Phase I & II Environmental Site Assessment Skydance Pedestrian Bridge
• Garver: Sand Springs Pouge Airport Pavement Rehabilitation
• Crafton Tull: MacArthur Boulevard Street Widening