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The Science Behind Radial Gate Tensioning

Posted by Dillon Hogan on November 27, 2018

At Brennan, we have worked on many dams of various sizes and functions. As very few new dams are built each year, most of our work consists of rehabilitation and repairs. Dams are built to last for long periods of time, however certain components will require periodic repairs and replacements. For instance, radial gates are some of the most common components that need attention. In our experience, we have found certain best practices that will increase the lifespan of these gates, as well as increase their functionality. 

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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.

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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.

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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.

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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.

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