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Case
Studies
GRL Engineers offer a wide range of deep foundation testing and consulting services, nationwide. Most GRL Engineers have achieved Advanced Level or higher on both the PDCA/PDI Dynamic Measurement and Analysis Proficiency Test.
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Featured
Offshore Wind Farms in New Jersey
![](https://www.grlengineers.com/wp-content/uploads/2023/11/Kennedy-Space-Center-527x318.jpg)
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NASA Vehicle Assembly Building
![](https://www.grlengineers.com/wp-content/uploads/2022/12/IMG_4301web-527x318.jpg)
Featured
Replacement Bridge Over Buffington Road and NFS Railroad
![](https://www.grlengineers.com/wp-content/uploads/2022/12/Picture1-405x318.jpg)
![](https://www.grlengineers.com/wp-content/uploads/2022/12/IMG_4301web-527x318.jpg)
Replacement Bridge Over Buffington Road and NFS Railroad
![](https://www.grlengineers.com/wp-content/uploads/2017/02/APPLE-InField-Testing-36-HighRes-e1579969510616-527x318.jpeg)
I-480 Valley View Bridge Deck Replacements
![](https://www.grlengineers.com/wp-content/uploads/2022/08/Boardwalk-Credit-527x318.png)
Lake Marion Greenway Trail Boardwalk
![](https://www.grlengineers.com/wp-content/uploads/2022/08/IMGP3817_cc-scaled-1-527x318.jpeg)
I-4 Ultimate
![](https://www.grlengineers.com/wp-content/uploads/2022/08/HarrisCty-Image1-527x318.jpeg)
Harris County Toll Road Authority SH 249
![](https://www.grlengineers.com/wp-content/uploads/2022/08/20191216_134252-scaled-1-527x318.jpeg)
Seattle Center Arena
![](https://www.grlengineers.com/wp-content/uploads/2022/08/20191126_095339-scaled-1-527x318.jpeg)
Mukilteo Multimodal Ferry Terminal
![](https://www.grlengineers.com/wp-content/uploads/2022/06/7-12-2019-Mile-Long-Bridge-Brian-Fritz-Photography-Web-527x318.jpeg)
Tri-State Tollway Mile-Long Bridge
In 2020, GRL Engineers were contracted to perform testing on the Mile-Long Bridge located in Willow Springs, Illinois. Various testing methods were performed to assess the concrete integrity including Crosshole Sonic Logging, Thermal Integrity Profiling, and Data Analyses.
![](https://www.grlengineers.com/wp-content/uploads/2022/06/IMG_1993_final-scaled-1-527x318.jpeg)
North Madison Substation
GRL Engineers took on an investigative project on the North Madison Substation in Wisconsin, to analyze acceleration and stresses in non-uniform piles during vibratory driving. The test involved Dynamic Pile Monitoring using a Pile Driving Analyzer (PDA) and the PDI-VIB Program.
![](https://www.grlengineers.com/wp-content/uploads/2022/06/20180411_134834-527x318.png)
1100 Broadway Avenue in Oakland
GRL Engineers were contracted to perform Dynamic Pile Monitoring with a Pile Driving Analyzer (PDA) and collect high-strain dynamic measurements using APPLE Load Testing. A CAPWAP Analysis was performed using the collected test data.
![](https://www.grlengineers.com/wp-content/uploads/2022/08/featured_image-527x318.jpeg)
Milwaukee 7Seventy7 Apartments
![](https://www.grlengineers.com/wp-content/uploads/2022/08/20190313_083307web-527x318.jpg)
Harbor River Bridge
![](https://www.grlengineers.com/wp-content/uploads/2022/08/NJ-CaseStudy-01-e1568982978816.jpeg)
New Jersey Floodwall
![](https://www.grlengineers.com/wp-content/uploads/2022/08/Cario-WV-2019w-527x318.jpg)
Cairo Bridge over the Fork Hughes River
![](https://www.grlengineers.com/wp-content/uploads/2022/08/LittleLakeHarris-03-527x318.jpeg)
SR-19 Over Little Lake Harris Bridge
![](https://www.grlengineers.com/wp-content/uploads/2022/08/BDSLT-InField-Install-01-HighRes-e1551716707548-449x318.jpeg)
Russell Street Bridge
![](https://www.grlengineers.com/wp-content/uploads/2022/08/NS-Bridge-Painesville-527x318.jpg)
Norfolk Southern Railroad
![](https://www.grlengineers.com/wp-content/uploads/2022/08/GRL-engineers-homepage-slider-1-527x318.jpeg)
Tappan Zee Bridge
![](https://www.grlengineers.com/wp-content/uploads/2022/08/thumbnail-corpus-christi-liquefaction-grl-engineers-527x318.jpeg)