Excavation Shoring


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Willamette Water Supply Project

December 9, 2022

The Willamette Water Supply Project is a $1.6 billion water conveyance pipeline project in Oregon.  Pipeline construction began in 2016, and when substantially complete in 2026, will provide fresh drinking water, capable of meeting current and future needs, while ensuring resiliency, protection of public health, and quick recovery during natural disasters and emergencies.  Improvement of…


Tunneling Engineering 101

At DHC, we try our best to be the construction engineers that you can come to for any design on a construction site. So, when a contractor comes to us to design a jack and bore shoring system, we can help you make sure your casing and carrier pipe are installed safely. From start to...


Steel Culvert Rehab

DHC has recently completed multiple designs of arch and elliptical shaped steel casings for culvert rehab projects for InfraSteel. Structural load and stress calculations on the new casing sections were performed and submitted, to prove that the steel segments can safely support the full intended loading of the existing deteriorated culverts. Once certified and approved by the...


Gaining Knowledge – Trench & Shoring Safety

The excavation shoring industry is consistently faced with the age-old challenges of working in unstable & changing soil conditions, managing groundwater, and protecting adjacent structures/utilities, while attempting to complete their work in a safe manner and remaining profitable.  With projects getting progressively larger and more complicated, coupled with laws and specifications outlining very strict design,...


MD Brace System Aids Cast-In-Place Job Off Lake Michigan

By: Tommy Marciniak – SPECIAL TO CEG   Completing a cast-in-place project that measures 46 ft. (14 m) wide by 39 ft. (11.9 m) long by 35 ft. (10.7 m) deep near the shores of Lake Michigan is a challenging project in and of itself. Now add in the challenge of being in the middle...


Mega Brace Shoring Provides Unique Solution for Water Project

This article was originally published in Underground Construction Magazine in December 2010.   Projects requiring excavation are recognized as among the most dangerous in construction, and protecting personnel who must work in trenches and surrounding areas from cave-ins is a priority with life and death implications.   For small jobs, trench protection may be as simple...