CNC Foundations is a finalist for the Associated General Contractors (AGC) of Missouri Keystone Award for two major projects. The Keystone Awards recognize construction projects that display top innovation and quality results by Missouri contractors. Read on to learn more about the two projects CNC received nominations for.
We recently completed ground improvement on Phase 2 of Ballpark Village, a 700,000 square foot residential and retail complex.
We installed top feed vibratory stone columns (VSCs) for ground improvement to meet the necessary load and settlement requirements. The VSCs were used to minimize future settlements and increase the soil’s bearing capacity. The subsurface soils varied from soft silts to clays with varying depths, with the deepest being 20 feet. Due to urban fill from a previous structure, we couldn’t drive the VSCs through the soils to the required depth. We used a drill rig to pre-auger the holes, and the VSCs were installed at a minimum depth of 30 feet to ensure they extended through the urban fill. Our installers completed the project on time and under budget.
We used our onboard computer monitoring system throughout the project. Our VSCs are outfitted with monitors that show the number of piles, the time it took to install, and the bar pressure achieved on every lift. Our computer monitoring system provides checks and balances throughout the project, allows efficient operations, and is unique to the foundation drilling marketplace. All employees complied with the standard safety regulations required by the general contractor and OSHA.
Here is what the Project Manager had to say about his partnership with CNC:
“CNC Foundations was a valuable partner on the project at Ballpark Village. There were some challenging site conditions and extensive drilling that had to be completed. CNC Foundations worked diligently to complete the project on time and within budget. They gave the owner a product that we and the owner could be confident with. We would highly recommend CNC Foundations and have used them on other projects as well.”
CNC Foundations completed deep foundation work on the new St. Louis Aquarium constructed at the historic Union Station.
The new structure and water tanks required a deep foundation solution. Overhead height restrictions and piles from the existing building made traditional deep foundation techniques not feasible. We were consulted early in the process to evaluate specialty deep foundation solutions that would overcome the challenges. Ultimately, we decided that micropiles were the most cost-effective option for support due to their high load-carrying capacity, limited access installation capability, and ability to be installed through existing obstructions.
We designed the micropiles around the existing deep foundations of the original structure, which required several layouts before finalizing the project’s scope. Our experts developed several types of micropiles to meet the varying compression and lateral loads. We manufactured the micropiles with different casing lengths and rock socket lengths to ensure the most cost-effective method in bedrock.
We designed and installed two compression load and lateral load tests to protect the sensitivity of the water tanks. We developed a spoils management program that managed the drilling and limited waste on the project. Our employees complied with the standard safety requirements of the general contractor and OSHA. We used multiple installation crews to meet the project schedule and reduce costs.
Here is what the Project Manager, had to say about the solution we provided:
“CNC Foundations was a valuable partner at the St. Louis Aquarium project. Their expertise in micropile design and construction allowed for the most efficient micropile plan for the project. They worked diligently to complete the project safely, on time, and within budget. I would highly recommend CNC Foundations as a geotechnical construction expert on future projects.”
CNC Foundations is a family-owned company that, for over three decades, has established a reputation as a premier geotechnical subcontractor. Our team provides a variety of construction solutions engineered to supply quality results and work within your budget. Contact us today if you’re seeking innovative solutions for your deep foundation problems.