Blog

Suspended Platforms – Deception & Canoe Pass + San Rafael Bridge

December 27, 2022

Designing a suspended platform system presents unique challenges not commonly seen in other lines of engineering, which requires a different kind of in-depth plan behind each design. Like a well-constructed spider web, suspended platform systems typically consist of efficiently placed cables and chains working both together and against one another to create a balanced system…

Willamette Water Supply Project

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…

California High-Speed Train – Tule River Viaduct

DHC does not shy away from high profile projects, and in the state of California, High-Speed Rail is among the biggest and most anticipated projects the state has seen in decades. With the introduction of a high-speed rail system, the state could finally feel a little smaller, although construction of the rail has been riddled…

1850 Alice – Overcoming Challenges

Washing windows. It sounds straight forward – grab a squeegee, a bucket of soapy water, and start washing. Now how about washing windows on the outside face of a 12-story building? Things tend to get a little more complicated. The best time to implement a safe method of washing windows for a large building…

Engineering the Pan American Games

The Pan American Games is a multi-sport competitive event preceding the Summer Olympic Games by 1 year, every 4th year. Each event hosts thousands of the top athletes from the nations of the North and South American continents. Spectators flock to see the various events and the major cities that host these events must be…

The EPIC Phase II

DHC had worked with MDM on a 20’ cantilever design through Covid. There was a little back and forth, but we came up with a clean design that worked structurally and was feasible for that particular job. Fast forward a few weeks and we get a call that went something like this: “Hey do you…

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…

Bay Bridge Demolition – Pier E2

Dominating the Bay Area landscape since 1933, the Oakland-San Francisco Bay Bridge has stood as a monument to depression-era construction and as an iconic gateway to the port of Oakland for over a quarter of a century. But even icons can need some refurbishment, and when a new Eastern Span was completed in 2013, it…

Historic Bridgeport Covered Bridge

D.H. Charles Engineering brought home two SAIA awards this year for our work completed on the historic Bridgeport Covered Bridge – the Structural Shoring Project of the Year and the Industrial Collaborative Project of the Year. It was a challenging, yet rewarding project to be a part of, and it was the team of engineers…

Bay Bridge Rebar Cage

Such is the evolving world of construction that each time we pick up the phone at DHC, we expect there’s a chance we’ll be asked to do something we’ve never done before, or to support a construction practice or method that is pushing the boundaries of what has been done in the past. It is…