Block & Company, Inc., Realtors’ construction management division, has completed Project Infill, a large infrastructure and earthworks project on 7000 W Frontage Road in Merriam, Kansas.
This is the final development project in the Merriam Pointe Auto Mall.
The 4.04 acre lot is primarily located in the heart of Merriam Pointe, one of the largest Kansas City car dealership hubs in the metropolitan area. However, the property’s previous condition was nothing more than a non-income generating deep drainage ditch with depths greater than 40 feet below the surrounding surfaces.
The ultimate goal of the lot was to match the slope with the surrounding surface planes to turn the unusable lot into a prime location for a new car dealership. To achieve this, many environmental requirements would have to be met before earthworks can begin.
The first requirement was to contact an environmental engineering company for approval from the US Army Corps of Engineers. This permit is required under the US Clean Water Act and allows for on-site power to be diverted into a concrete box culvert that would have to be built.
The granting of the permit triggered a site clearance that had to be planned to avoid disturbing endangered species that may inhabit the site. After the clearing work was completed, the preparation of the subsoil for the box channel began. A 14 by 14 foot box canal was built that extended several hundred feet across the site and through a 20 foot retaining wall along the entire west end of the site. Upon completion, the filling activities were to begin. This required the import and placement of more than 100,000 cubic meters of technical filling material.
Another important part of the project was the replacement of more than 600 feet of a 24-inch diameter clay sewer with a new cast iron pipe. New manholes were added and existing manholes were in some cases raised to greater than 40 feet, requiring significant box support for earth retention and vacuum excavation to reach the bottom of the manholes.
Additional changes included moving, changing and upgrading water and power lines on site. After the improvements were completed, the site was finely graduated, sown and landscaped.