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Laguna Treatment Plant

  In Santa Rosa, CA, as is true in many cities, it’s important to maintain and upgrade infrastructure to meet the demands of a growing city. One of these needed upgrades was the replacement of a nearly 25-year-old UV disinfection system at the Laguna Treatment Plant to provide a more sustainable and efficient system. The…

Big Creek Bridge Restoration

Big Creek Bridge is an open spandrel concrete arch bridge on California’s coast in Monterey County. The bridge was built with funding from the New Deal in the 1930’s, ultimately opening in 1938. Measuring 589 feet long and 24 feet wide, the bridge spans 65…

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Award Winning Shoring Key to Success

In recognition for the successful collaboration and the innovative shoring design, this project was awarded the 2020 Scaffolding & Access Industry Association (SAIA) Shoring Project of the Year.   Originally built in 1962, Climate Pledge Arena (originally known as Key Arena) is located in the heart…

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Chicago Office Opening

D.H. Charles Engineering, Inc. has a long-standing tradition of servicing clients in the State of Illinois since obtaining our IL SE license, and has developed close relationships with contractors, IDOT and CDOT OUC over the past twenty years working in the area. Even though we’ve…

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Temple Galaxia – Burning Man

Burning Man is an annual gathering held for one week every year in the harsh and unforgiving Black Rock Desert of Nevada where a community comes together to construct a temporary city filled with art installations and camps dedicated to radical self-expression and self-reliance. Participants…

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Paseo Colorado

In 2017, DHC was contracted by Commercial Scaffolding, Inc. to provide engineered designs for the Paseo Colorado outdoor mall, in Pasadena, CA. DHC’s scope of work consisted of the structural shoring of existing columns and beams to allow for the installation of (4) new shear…

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Engineering Solutions – Enclosed Scaffold on High Profile Bridges

Enclosed scaffold systems on bridges can expose some of the most complex erection and engineering challenges to face the scaffold industry today. Extreme heights, elaborate bridge profiles, severe wind speeds and other complications regularly drive scaffold contractors and engineers to develop state-of-the-art solutions. The following…

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Support Under Distress

The 6.0 magnitude Napa Earthquake struck on August 24, 2014,  and caused substantial damage to many structures in this popular tourist destination. DHC received many calls during the aftermath of the earthquake, as the damage was widespread and structures were in need of temporary support.…

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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…

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NCSEA – Award

DHC is proud to have been awarded the National Council of Structural Engineers Associations 2015 Excellence in Structural Engineering Award, for work on the Ballard Drive Bridge, in Seattle, WA.   Click here to read published article on the project.   The Ballard Drive Bridge is…

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