Offices


LenexaGeolocation: 38.9543, -94.746

Terracon's Lenexa office provides a full range of geotechnical, environmental, construction materials, and facilities engineering services throughout the Kansas City metro. With more than 35 years of experience with offices in Kansas City, our employees are knowledgeable about local geologic conditions, construction materials procedures and codes, and environmental policies, regulations and concerns. We have a fully equipped, American Association of State Highway and Transportation Officials (AASHTO) and United States Army Corp of Engineers (USACE) certified laboratory, supported by the largest field technician crew and equipment fleet in the metropolitan area. Lenexa Office History:

  • 1978: Lenexa office opened its doors in the Kansas City area as Soil Testing Services of Kansas.
  • 1980: Soil Testing Services of Iowa and Soil Testing Services of Kansas united as Terracon Consultants, Inc.
  • 1999: The Lenexa office moved to its current location.
  • 1999: Lenexa office expanded to include a full services satellite location in Lee's Summit, Mo., to provide more responsive and convenient service to our Missouri clients.
  • 2011: Dressler, a building forensics (investigative services and roof consulting) engineering firm founded in 1974, joined the Terracon group of companies and relocated from Overland Park to the Terracon Lenexa office building.

Key Projects


87th Street / I-35 Highway System EnhancementGeolocation: 38.9706, -94.7149
Increasing congestion on 87th Street, an urban arterial in the cities of Lenexa and Overland Park prompted a design team including Terracon to find a solution. In 2001, the design team was awarded two projects with a combined construction cost of $110 million.  These projects have three clients; the Kansas Department of Transportation (KDOT), the City of Lenexa and the City of Overland Park. Widening 87th Street from four to six lanes with reconstruction of the 87th Street overpasses at I-35, U.S. 69 and the BNSF railroad into a single point urban interchange was determined to be both…

Arrowhead StadiumGeolocation: 39.0997, -94.5786

In 2008, Terracon was retained to provide geotechnical services to help renovate and expand Arrowhead and neighboring Kauffman Stadium in Kansas City. The Arrowhead expansion and renovations included a new four to five-story concrete structure with below grade areas to be added around the existing stadium. The new foundations were drilled piers bearing on rock, and spread footings bearing on rock where possible. The design also included a possible rolling roof to be added in the future. Terracon's geotechnical services included design recommendations, groundwater mitigation, construction…


BNSF Railway Logistics Park Kansas City AreaGeolocation: 38.7822, -94.9663
The $250 million BNSF Logistics Park Kansas City (LPKC) Inter-modal Facility was designed to accommodate the growing demands of freight rail transportation in the Kansas City region. The Inter-modal facility encompasses 433 acres and will have an initial capacity of 500,000 truck containers and trailers per year, with the ability to expand to 1.5 million units. The LPKC facility has six 8,000-foot tracks for loading and unloading inter-modal trains and more than 1,800 parking spaces and will have 4,300 container stacking spots at full build-out. It is equipped with five wide-span, electric,…

Embassy Suites Hotel and Convention CenterGeolocation: 38.9394, -94.7966
The Heart of America Group completed building a 10-story, 200 room hotel, and 25,000 square foot conference center that opened in the summer of 2015. The $51 million new Embassy Suites & Conference Center is Heart of America's third hotel property in Olathe, Kansas. The hotel includes a pool and fitness center, a restaurant and bar, and a large commons area. The 25,000-square-foot conference center can hold about 1,000 people. Terracon was retained by the Heart of America Group to perform the geotechnical consulting and engineering, materials inspections and testing, structural steel…

Ft. Levenworth Ridge Top ApartmentsGeolocation: 39.2798, -94.8943
Several old Department of Veterans Affairs (VA) domiciliary buildings in Leavenworth, Kansas, that had been vacant since 1995 are once again housing veterans. The 125-year-old structures on the grounds of the Eisenhower VA Medical Center have been renovated into apartment buildings. The renovations for the Ridge Top Apartments project involved six buildings including: four domiciliary buildings, a residential house used by hospital staff and a detached single-car garage. The development preserved features of the historic buildings, including original windows and terrazzo flooring. The large…

Kansas State University Vanier Athletic FacilityGeolocation: 39.204, -96.5936
“Kansas State University's Bill Snyder Family Stadium is in the midst of a transformation. With the new Vanier Family Football Complex, the Wildcats more than doubled the amount of space for student-athletes and coaches, providing access to world-class resources, equipment and facilities and creating a more cohesive and efficient experience to train, study and compete. The new training complex, attached to the stadium, includes expansive spaces, bold graphics and state-of-the-art equipment. A grand 4-story atrium leaves a memorable first impression and is accessible from all levels,…

 Terracon provided independent geotechnical review of the River Bridge geotechnical reports and evaluations.
kcICONGeolocation: 39.0997, -94.5786
kcICON is a $245-million "interstate connections" project upgrading I-29/35 to 6 lanes, from just north of the Route 210 / Armour Road interchange to Independence Avenue in Kansas City, Mo. The project includes an additional southbound lane, reconstruction of numerous on-ramps and off-ramps, and several interchangereconfigurations. An "iconic" cable-stayed bridge, expandable to 8 lanes and capable of accommodating a future bicycle/pedestrian facility, is the key feature replacing the existing Paseo Bridge. As the geotechnical consultant for the kcICON project, Terracon drilled more than 200…

Keystone XL TransCanada PipelineGeolocation: 29.718, -94.995

Terracon was retained to provide geotechnical engineering and drilling services for the Keystone XL TransCanada Pipeline project. Phase 1 of the project consisted of 12 pump stations and two terminals from Steele City, Neb. to Nederland, Texas. To complete the project in the time required, all projects were performed simultaneously using engineers and drill-rig crews from Terracon's Lenexa, Lincoln, Oklahoma City, Tulsa, and Lufkin offices. While in the process of completing Phase I, Worley Parsons awarded Terracon the second phase of geotechnical work for the major petroleum pipeline.…


North Kansas City HospitalGeolocation: 39.1495, -94.5515
North Kansas City Hospital has invested $18 million in its emergency room (ER) expansion to serve the North Kansas City community better. With over 10,000 square feet of additional space, the ER now encompasses 30,000 square feet, increasing capacity from 65,000 to 80,000 emergency visits a year. The new design allows more space and privacy in each of the 42 rooms, including three trauma rooms. The expansion enhances the Hospital’s existing Level II trauma center services and brings additional care and convenience to patients and families. Terracon provided materials observation and…

Shawnee Mission Health – Blue Valley CampusGeolocation: 38.8335, -94.6682
To fulfill their goal to be seen as more than a hospital and to build a network of healthcare facilities and providers working to exceed expectations in delivering quality care, Shawnee Mission Health (SMH) chose a location in southern Overland Park, Kansas to build their new Blue Valley Campus that will house an emergency department, imaging center and laboratory. The new buildings will collectively create a campus-like environment with proportions and scale to the surrounding community.   Terracon was retained by the client because we were familiar with the geological and…

Stanley Storm Drainage ImprovementsGeolocation: 38.8537, -94.6618
The City of Overland Park, Kansas has plans for the construction of a public flood control project to reduce flooding and benefit various properties adjacent to a subdivision in southern Johnson County. The improvements consist of storm sewer improvements consisting of excavation, storm sewer and inlet installation, grade control measures, roadway repairs, restoration, utility relocation, retaining wall construction, design and inspection, and easement acquisition. These improvements replace the existing natural channel and remove the adjacent areas from the 100-year…

Switzer Road – 151st Street to 159th StreetGeolocation: 38.8637, -94.7045
The City of Overland Park, Kansas, planned to establish a horizontal and vertical alignment for 151st Street from Quivira Road to Antioch Road, Quivira Road from 151st Street to 159th Street and Switzer Road from 151st Street to 159th Street as part of a Thoroughfare Street Improvement Program. Impacts on existing developments and infrastructure, as well as major storm drainage improvements were determined during the preliminary engineering analysis.   Terracon performed geotechnical engineering services for the Switzer Road Improvements from 151st Street to 159th Street. The plan…