Deep Excavation Support Systems
Your Source for Excavation Support Designs, Consulting, and Management
Deep Excavation Support Methods Backed With Decades of Exceptional Results
Excavation projects in urban areas like Manhattan can present many challenges. Adjacent buildings, cross lots, neighboring structures, landmarks, underground tunnels, existing infrastructure, MTA requirements, and busy streets all add complexity to excavation areas. With over three decades of experience, FNA Engineering Services has the proven expertise to design practical, cost-effective, and permanent deep excavation support systems.
We have a long-standing reputation as a favored single-source excavation provider because we focus on delivering constructible, creative, and efficient designs to even the most demanding sites. FNA also specializes in planning and executing permanent support of excavation elements to act as foundation walls and deep foundations. Whether you need to use every inch of space along a nearby lot line or dig below groundwater, you can count on our team to design a superior solution.
Your Single Source for All Support of Excavation Services
At FNA, we pride ourselves on being a multidisciplinary firm with unparalleled knowledge of complicated deep excavations. Based on the unique specifications of your site, we plan and design an excavation support system most beneficial for your structure, budget, and timeframe.
Along with designing deep excavation support systems, FNA is your one-stop shop for temporary sheeting and shoring, top-down construction, and underpinning foundations. Our excavation wall support systems and retaining structures include:
- Pile walls
- Sheet piling
- Soil walls
- Soil nail walls
- Soldier piles and lagging
- Secant piles
Our efficient excavation support methods are an invaluable asset for projects that require the safe construction of shallow or deep foundations, one or more basements, and utilities. And as a value-added component, our solutions save cellar space and eliminate the cost of additional foundation walls.
The Importance of Excavation Wall Support
FNA designs excavation wall supports to minimize the footprint of your boring area, maximize the stability of deep excavation support systems’ sides, and eliminate the risk of movement negatively impacting nearby structures or utilities.
Navigating the Complexities of Rock Excavation
FNA is the leading geotechnical engineering firm for deep excavation support systems. We understand soil conditions and rock mass properties and how they affect the stability of retaining systems. Our rock excavation support is designed to ensure the structural integrity of a building and craft ways for developers to use natural resources to their benefit.
Real-World Results of Our Deep Excavation Support Methods
FNA engineered the deep excavation support systems and designed the deep foundation for 432 Park Avenue, the tallest residential building in the world and the second-tallest structure in New York. A project of this magnitude required superior planning, intricate designs, flawless execution, and innovative solutions to ensure safe and effective completion.
Despite being located in the heart of one of New York’s busiest areas, we are able to successfully maneuver through tight areas and uphold the structural integrity of the adjacent structures while excavating the site of a 1,396-foot skyscraper that is now home to some of the most valuable real estate in the world.
Explore Our Notable Projects
Learn the role FNA played and the solutions we provided for some of the most recognizable projects throughout the country.