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ENGINEERING
SERVICES
Browse our services
PE & SE
LICENSES
View our stamping map
OFFICE
LOCATIONS
Find an office location
FEATURED PROJECTS
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…
Deception & Canoe Pass + San Rafael Bridge
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…
Willamette Water Supply Project
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…
Engineering the Pan American Games
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…
Bay Bridge Demolition – Pier E2
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 feet above Big Creek near its mouth at the Pacific…
Big Creek Bridge Restoration
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 walls and shear wall foundations on the P2-lower parking level….