<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2068773736745421&amp;ev=PageView&amp;noscript=1">

Dillon Hogan

Recent Posts

7 Cost-Drivers of a Dredging Project

Posted by Dillon Hogan on November 13, 2018

Dredging projects are complex and involve many components and significant planning before operation. The intricacy of these projects means that pricing is often multifaceted. Here are seven common areas that drive overall costs on a dredging project.

Read More

Empowering Individual Safety with Technology

Posted by Dillon Hogan on October 30, 2018

There is nothing more important on a job site than safety. To prevent an injury, one must recognize the potential risk and take mitigative action beforehand. The challenge that companies like us face is not so much trying to figure out how an incident happened, but training employees to recognize the potential of injury before it happens. Once that mindset has been ingrained, team members must be empowered to address and escalate it without repercussion.

Read More

The Basics of Using Polymers on Dredging Projects

Posted by Dillon Hogan on October 16, 2018

Why Add Polymers?

 

One of the biggest challenges on a dredging project is managing the water that is excavated and transported with the sediment. On hydraulic dredging jobs where sediment and water are pumped through a pipeline as a slurry, water can account for 90+ percent of the volumetric flow. After the slurry reaches the disposal area, the water must be separated from the sediment, collected, and often clarified or treated. This process must happen as fast as the water is being pumped, which for a 12-inch cutterhead dredge could be 5,000 gallons per minute.

Read More

3 Critical (and Simple) Steps to Prevent Stray Current Corrosion at Barge Terminals

Posted by Dillon Hogan on October 02, 2018

Stray current corrosion is a common threat to water-based steel structures such as barge terminals. Though hard to identify the source, damage from stray current can be prevented by following 3 simple steps.

Read More

Cofferdams 101: Different Types and Construction Methods on Waterways

Posted by Dillon Hogan on August 21, 2018

Working around water poses a plethora of challenges. There are always two parts of a water-based project, the above and below water sections. Access to the above water section is easy, however when working below the waterline access is not that easy. One of the more apparent issues is what do you do when the water is in the way of your work? One solution is to build a cofferdam.

Read More

Fighting Scour With Articulating Block Mats

Posted by Dillon Hogan on August 07, 2018

Save Money with This Long-term Fix for Scour Problems

Scour poses a large threat to the stability of any structure that is partially or entirely underwater. It may develop slowly over time, or be brought on quickly by an intense rain event or seasonal flooding. In some cases, such as along a shoreline, scour can be very evident. In others, scour can go unnoticed for an extended period of time. Whether it is taking place around the footing of a bridge pier, along the base of a sheet pile wall, or along a tailrace on a dam, scour may not be evident until the structure begins to show signs above the water. At this point, the structure is beginning to fail and repairs must be done soon to avoid a total loss of integrity. Repairing scour and erosion issues that may be going unnoticed in any location is vital as it will save a lot of money in the long run, and extend the life of the structure.

Read More

4 Essential Steps of Wetland Restoration

Posted by Dillon Hogan on July 24, 2018

Our experience in wetland habitat restoration began decades ago with the Upper Mississippi River Restoration Program (UMRR), the largest restoration program ever undertaken on a major waterway worldwide.  Since then, restoring marshes, wetlands, and highly sensitive ecosystems along inland and coastal waters nationwide has been a main initiative.

Read More

Out of Sight, Out of Mind; The Importance of Underwater Inspections

Posted by Dillon Hogan on July 10, 2018

Lock and Dams, bridges, pipeline crossings, and barge terminals are all examples of water-based infrastructure. Ensuring that these structures maintain their integrity is essential to their continued operation, however water-based infrastructure presents an added challenge because a portion of the structure is underwater.

Read More

The AWO-RCP, Subchapter M, and ISO Certification

Posted by Dillon Hogan on June 12, 2018

A story of Total Quality Management for an inland marine company.

Read More

The Leverman's Challenge

Posted by Dillon Hogan on May 29, 2018

The Bureau of Labor Statistics classifies a dredge operator as a person who removes sand, gravel, or other material in order to excavate and maintain navigable channels in waterways. In the industry, we call the dredge operator a leverman. This is a historical remnant of the days when the pilothouse, or lever room, was full of mechanical levers that controlled various parts of the dredge. The levers eventually gave way to computerized control systems...

Read More