This was seen in action as both TerraCross bridges were quickly moved into place with standard matting equipment and set up in a few short hours. One of the critical design features of the TerraCross is the ease of installation. Because of the heavy truck volume required to complete the work on site, two TerraCross bridges were installed, one for inbound and one for outbound traffic. #PIPELINE CROSSING AIRBRIDGE INSTALL#The Sterling team based out of Lufkin, Texas, was mobilized to install the TerraCross bridges on site. TerraCross is a bridging solution that uses structural steel beams and TerraLam® CLT mats to span up to 35 feet while supporting up to 100-tons. DynaGrid turned to Sterling and the engineered TerraCross™ bridge to get the project moving forward. By creating an air bridge, a clear span is created above ground to prevent damage to the underground pipeline as vehicles pass over it. Damaging the pipelines would create a significant safety hazard along with significant costs related to project delays, mitigating the environmental damage, and repairing the damaged pipeline.ĭynaGrid had two options: delay the project until Southcross Energy could rebury the pipes or create an “air bridge” over the lines. However, shallow-buried high-pressure pipelines prevented them from accessing the project site.Ĭonstruction could not proceed because equipment and trucks could not pass directly over the high-pressure lines. In order to begin construction on a new AEP substation in Sinton, Texas, DynaGrid needed to gain temporary site access to the 15-acre job site. TerraCross™ bridges were quickly installed to keep the project moving forward.ĭynaGrid is a Dallas-based, nationwide power utility contractor focused on delivering subgrade work associated with substations, switch stations and transmission lines.ĪEP (American Electric Power) is a leading nationwide electric utility delivering electricity to more than five million customers in 11 states.
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