Scroll down or use the menu to see a few of the hundreds of exciting projects AFT has been involved in over the past 20 years.
Current and Major Projects
Honolulu High Capacity Transit Corridor, Hawaii
Photo Credit Honolulu Authority for Rapid Transportation (HART)
Client: Kiewit Infrastructure West Co.
Stretching 20 miles across the island of O'ahu, the Honolulu High Capacity Transit Corridor or simply Honolulu Rail is set to be fully operational in 2019. With 20 fully automated trains operating at a top speed of 55 miles per hour, the rail is designed to ease the heavy congestion along Interstate H1. AFT has been on site before the very first test shaft in West Oahu in 2010 helping to guarantee the success of this ambitious, $3 billion project. AFT has performed Mini-SID inspection, CSL testing, and Post Grouting services on over 400 non-redundant drilled shaft foundations (and counting!) along the guideway.
Learn more about the Honolulu Rail project at http://www.honolulutransit.org/
I4 Ultimate, Orlando, Florida
Client: SGL Constructors (Skanska-Granite-Lane JV)
This 21-mile expansion of the major corridor through metropolitan Orlando is a signature project featuring four additional express lanes, thirteen widened bridges, 74 bridge replacements, and 53 new bridges. The $2.3 billion public private partnership is the largest single project in FDOT history.
AFT's ongoing role during the construction process centers around PDA and remote vibration monitoring services for the Skanska-Granite-Lane (SGL Constructors) build team. The biggest construction project in the history of the State is also one of the fastest moving: an early study conducted by FDOT estimated a 27 year project while the I4 Mobility Partners are scheduled to complete the project in just 7 years.
The skilled engineers and technicians of AFT are helping the build team meet their deadlines and keep Orlando moving.
Learn more about the I4 Ultimate project at http://www.i4ultimate.com/
Photo Credit Florida Department of Transportation (FDOT)
Gerald Desmond Bridge, Long Beach, California
Photo Credit American Road & Transportation Builders Assn
Client: Shimmick, FCC, Impregilio (SFI)
New $650 million dollar signature cable-stay bridge at the Port of Long Beach supported on over 350 base grouted Cast In Drilled Hole (CIDH) pile (drilled shafts) with diameters of 5, 6 and 8 foot and up to 188 feet in length.
AFT was invited to the project as an expert base grouting consultant partially through the ongoing load test program. AFT's extensive experinece and contributions ultimately made the base groutng and load test program a huge success. AFT designed an award winning tip grout distribution plate used on the project that received the William C Bermingham Award for Innovation. Our responsibilities included, developing tip grouting procedures, technical special provision writing, design of grouting systems, shop drawings and plan drawings, advising on grouting equipment, providing automated grouting instrumentation, advising on field grouting operations, analysis of grouting data and engineering reports on the tip grouting results.
Tappan Zee Bridge Replacement, New York
Photo Credit American Road & Transportation Builders Assn
Client: Tappan Zee Constructors (Fluor Enterprises, American Bridge Company, Granite Construction Northeast, Traylor Bros. JV)
In 2012, the New York State Department of Transportation conducted a Design Phase test pile program prior to moving ahead with the design build project to replace the existing Tappan Zee Bridge on Interstate 287. Project costs are estimated at $5.2 billion dollars.
AFT's involvement in the test pile program included Cross-hole Sonic Logging (CSL), Shaft Inspection Device (SID), and STATNAMIC™ load testing. Our main scope of work included axial Statnamic load testing to 5,000 tons on a 48-inch diameter steel pipe pile with a driven length of 300 feet. AFT utilzed our proprietary external strain gages and mounting system at multiple subsurface levels as deep as 280 feet underground. AFT obtained highly successful and relaible strain measurements during the STATNAMIC™ load testing which allowed high quality load distrubution data on very long piles.
California High Speed Rail
Client: Becho, Inc.
Phase 1 of the California High Speed Rail Project will connect Los Angeles to San Francisco at a blistering top speed of 220 mph. At $68.4 billion, it is the largest public works project in the history of the United States. With completion of Phase 1 projected at 2029 and Phase 2 not yet planned, it is likely that AFT will see continued involvement in the massive transportation project.
To date, AFT's scope of work has included lateral STATNAMIC™ load testing on three drilled shafts for the earliest parts of construction. The massive 8 and 10 foot diameter drilled shafts were located near Fresno and the San Joaquin River and were loaded laterally with forces of over 2500 kips over multiple load cycles.
Photo credit California High Speed Rail Authority
Port of Cristobal, Panama Canal Zone
Photo Credit Intercoastal Marine, Inc.
Client: Intercoastal Marine, Inc.
A Design/Build expansion of the Port of Cristobal on the Caribbean entrance to the Panama Canal presented numerous challenges for the contractor. The age of the existing structures was a constant issue: the port dates back to 1851 where it was used for the Transisthian Railroad construction! The reconstruction of Berth 10 in particular was designed around existing drilled shafts over a century old.
AFT performed Unknown Foundation Studies using Sonic Echo Impulse Response (SEIR) and Parallel Seismic Testing (PST) methods to nondestrucively analyze the existing 100+ year old drilled shafts. Interestingly, it was discovered that these shafts used leftover railroad track as their reinforcement!
For the new Berth construction, which AFT was heavily involved, drilled shafts and multiple types of driven piles were used. AFT performed CSL, PDA, CAPWAP® and WEAP services for the new foundation installations, provided pile driving criteria recommendations, and served as expert consultants for various foundation construction challenges.
Brickell City Centre, Miami, Florida
Photo Credit Simon Properties
Client: HJ Foundation
This $1.05 billion complex will consist of over 5,400,000 square feet of retail, office, condo, and hotel space when completed. Foundations included 24 inch and 36 inch diameter high capacity augercast piles used in a very innovative way. The augercast piles were installed in tight groups, known as tangent piles, to form a large bearing element with substantial resistance. When the question of how to load test this type of foundation element came up, STATNAMIC™ load testing was the only practical answer. AFT managed and implemented the foundation load test program consisting of seven (7) axial STATNAMIC™ load tests up to 5,000 tons. For the low rise structures on the project AFT conducted static load testing, both in compression and tension on conventional augercast piles.
An extensive instrumentation program was undertaken, to better understand tangent pile bearing element performance. This effort included strain instrumenting each individual pile in the tangent clusters. Up to 150 instruments were installed and monitored for a single load test. The complexity of the test program required highly sophisticated data acquisition and analysis, just the sort of job AFT is known for!
Flagler Memorial Bridge, West Palm Beach, Florida
Render Credit PCL Civil Constructors
Client: PCL Civil Constructors
A new $94 million Design/Build bridge connecting downtown West Palm Beach to the barrier islands realized significant cost savings and improved performance through the use of Post Grouting of Drilled Shafts. The designed bridge spans 1700 feet with a bascule span over the inracoastal waterway and is supported on 108 post grouted, 5 foot diameter, drilled shafts up to 120 feet in length. The use of post grouting allowed a shaft length reduction of 25 to 35 feet in the sandy soil
Besides post grouting. AFT also performed Mini-SID and CSL testing on all drilled shafts. Furthermore, the load test program consisted of two 5,000 ton STATNAMIC™ load tests. AFT has truly been key in the construction of the foundation of this signature bridge in one of the most challenging drilled shaft locations in the country.
John James Audubon Bridge, Baton Rouge, Louisiana
Photo Credit Audubon Bridge Constructors
Client: Audubon Bridge Constructors (Flatiron, Granite, Parson Transportation JV)
Connecting St. Francisville with New Roads north of Baton Rouge, Louisiana, this 1,583 foot cable-stayed bridge is the longest of its kind in North America. AFT was responsible for installing Strain Instrumentation in each main pylon shaft, design and fabrication of grouting systems, performance of Post Grouting of Drilled Shafts, monitoring the instrumentation during grouting and providing reports for 92 shafts. In addition AFT performed CSL testing on all shafts and also performed Mini-SID inspection of test shafts. AFT also performed extensive Static Load Testing, PDA testing, and CAPWAP® analyses of nearly 200 test piles for seven approach bridges on driven piles. AFT's experience and capability to perform a wide variety of functions in this landmark project provided the confidence and simplicity the client required when they needed it the most.
Atlantic LNG Facility, Point Fortin, Trinidad
Client: Pres-T-Con Limited
A major expansion of the Atlantic Liquified Natural Gas (LNG) facility in Point Fortin, Trinidad, this combination marine and land construction operation involved thousands of driven piles. Three variations of octagonal prestressed concrete piles and steel open ended pipe piles were used across the construction site. The land operations alone included tank structures founded on upwards of 2,000 piles.
AFT's role in this expansion included PDA, CAPWAP® analyses, and driving criteria recommendations. AFT also served as expert consultants on foundation construction challenges.
Christopher S. Bond Bridge, Kansas City, Missouri
Photo Credit Tommy Brison
Client: Hayes Drilling, Inc.
This $245 million Design/Build project included the iconic Christopher S. Bond Bridge over the Missouri River and reconstruction of interchanges to I-29/35 in Kansas City, Missouri. The main pylon was supported on 10.5 ft diameter drilled shafts, while the approaches were founded on 6.5 post grouted shafts 120 feet in length.
AFT was responsible for Post Grouting and Mini-SID operations, including design and fabrication of grouting systems, post grouting criteria recommendations, and strain instrumentation fabrication and installation in the first two production drilled shafts. AFT performed post grouting and Mini-SID inspection on 25 drilled shafts using advanced technology to give the client a competitive advantage.
Tampa International Airport, Tampa, Florida
Photo Credit Tampa Bay Times
Multiple Clients including Case Foundation Co., Skanska, Flatiron, RW Harris, Coastal Foundation Drilling Co.
With AFT's long presence in the Tampa area, it is not surprising that TPA and AFT have grown together. AFT has been involved with almost every major expansion of Tampa International Airport since the early 2000s. We have performed STATNAMIC™ load testing on parking structures as well as the airport hotel, CSL, PDA, and Mini-SID on the George L. Bean Parkway and award-winning SR60/589 Interchange, and even performed our very first AFT-Cell® bi-directional load test as part of the construction of the automated people mover guideway and consolidated rental car center. Being local has its advantages, and being as diverse as AFT has even more.
Schuyler Heim Bridge, Long Beach, California
Photo Credit Port of Long Beach Authority
Client: MCM Construction, Inc.
This new $210 million fixed bridge stretches over three quarters of a mile, replacing a 1948 lift span. The Schuyler Heim Bridge connects the Ports of Long Beach and Los Angeles and conforms to high seismic standards. The bridge is supported on 10 and 12 foot diameter drilled shafts 155 to 200 feet in length. Value Engineering Design for Post Grouted Drilled Shafts in main spans with input by the experts at AFT reduced shaft lengths by 35 to 50 feet, saving significant time and expense.
AFT served as the expert consultant through the design process and developed the Technical Special Provisions, Procedures, Submittals, Shop Drawings, and Post Grouting Criteria required for the post grouting process. AFT furnished and installed strain instrumentation as well as all grouting equipment including the largest grout plate in US history! Post grouting was accomplished with our proprietary GroutDAQ™ system to deliver a superior final product.
Hastings Bridge, Hastings, Minnesota
Photo Credit MnDOT
Client: Lunda Construction
The new Hastings Bridge is a 21st century landmark for the Hastings region. The most noticeable component of the new Bridge is the main Span with its two arch ribs. The Hastings Bridge is the longest free-standing tied-arch bridge in North America at 545 feet in length and 104 feet wide.
AFT performed two 3,600 ton axial STATNAMIC™ load tests to 3,600 tons on 42 inch diameter, 185 foot long steel pipe piles. Two 700 ton lateral STATNAMIC™ load tests were also perfomed and used the proprietary Downhole Lateral Motion Sensor (DLMS) developed by AFT. AFT also performed Mini-SID inspection, CSL testing, drilled shaft calipering, and drilled shaft inspection services on this iconic project.
Goethals Bridge Replacement, New York, New Jersey
Photo Credit NY Daily News
Client: Kiewit-Weeks-Massman AJV
The Goethals Bridge Replacement is a $1.5 billion Public-Private Partnership (P3) between the Port Authority of New York and New Jersey and NYNJ Link Developer, LLC to replace the originial 1928 steel truss bridge. The striking design of the replacement bridge follows in the same theme as other proposed bridge replacments between New York and New Jersey.
AFT performed lateral STATNAMIC™ load tests up to 1,200 tons in four seperate cycles on two test shafts, one 6 feet in diameter and one 9 feet in diameter. Instrumentation included up to 8 levels of embedded strain gages per shaft and AFT's proprietary Downhole Lateral Motion Sensor (DLMS). Lateral load test results were analyzed and compared to analytical models of the shafts' behavior. AFT also supplied two AFT-SID™ systems to the construction team that are used for inspection of all production shafts.
Mercedes-Benz Stadium, Atlanta, Georgia
Photo Credit HOK
Client: ABE Enterprises, Inc.
Beginning in 2010, the Atlantic Falcons Football Club expressed interest in building a replacement for the Georiga Dome. Three months after the May 19, 2014 groundbreaking ceremony, AFT was on site performing Mini-SID inspection services, CSL testing, Low strain integrity testing, and a 5,000 ton STATNAMIC™ load test.
The $1.4 billion Mercedes-Benz stadium is set to be one of the most sustainable and iconic stadiums in the country and home to many high profile sporting events. AFT is proud to have been a part of the early construction efforts.
Pont de Northfield, Gracefield, Québec
Photo Credit Pomerleau
Client: Pomerleau, Inc.
AFT conducted an axial load test utilizing its 40 MN STATNAMIC™ device on the frigid waters of the Gatineau River in December of 2014. The new bridge connecting Northfield and Gracefield, Québec, Canada replaces an aging steel truss structure placed under load restriction in 2012. The new bridge is built using pieux de caisson (pipe pile piers), a relatively new design for Québec. The new bridge is designed to contend with the geological and meterological conditions of the area and perhaps serve as a model for replacement bridges for the aging infrastructure providing access to nearby Montréal.
The test caisson measured nearly 10 feet in diameter with a wall thickness of 1.5 inches and an overall length of 166 feet. Using STATNAMIC™, AFT was able to provide a 1,700 ton load test with minimal equipment and infrastructure brought to the job site.
See the video courtesy of Pomerleau, Inc.
Kentucky Lakes Load Test Program, Kentucky
Client: Massman Construction
Following the ship impact, collapse, and subsequent repair of the main span of the Eggner Ferry Bridge, the Kentucky Transportation Cabinet intiated plans for its eventual replacement. Part of the design phase included an extremely comprehensive load test program, of which AFT served as the primary load testing firm.
Prior to load testing, AFT served as the specialty engineer performing extensive pre-test planning and design. This work included numerous wave equation studies, vibration studies and pre and post test program crack surveys on the existing adjacent bridge.
AFT performed remote vibration monitoring, PDA, CAPWAP®, static load test monitoring, and both lateral and axial STATNAMIC™ load testing thorughout this expansive project. The test piles included H-piles and various diameter steel pipe piles with lengths of over 200 feet. Static load testing was performed to 3000 tons and STATNAMIC™ load testing was performed to 5000 tons.
The sheer scope and diversity of this load test program resulted in many academic studies in the use of steel piles in the US and numerous published journal papers.
Gilmerton Bridge, Portsmouth, Virginia
Client: PCL Civil Constructors
A new $158 million dollar lift span bridge over the Southern Branch of the Elizabeth River to replace the existing double-leaf bascule bridge that was constructed in 1938. The new bridge will be 1,908 foot long. The two main vertical lift span piers (Pier 9 and Pier 10) are supported on 12 foot diameter post grouted drilled shafts. Each pier has 4 shafts with a length of approximately 112.5 feet. AFT was responsible for design and fabrication of post grouting systems, grouting operations, instrumentation and monitoring of all the post grouted drilled shafts. AFT provided two independent grout plants during grouting operations. Post grouting was implemented as a Value Engineering alternate.