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SPC4D: Going Beyond 2030

“Not every building is an SPC4D candidate due to obsolescence or the cost prohibitive expense of systems upgrades. However, SPC4D may provide relief for 2030 compliance by extending the time to implement facility modernization plans and allowing high performing, functionally adequate pre-1973 buildings to remain."
- Daniel Zepeda,
Degenkolb Principal

SPC4D regulations have been formally adopted in the 2016 California Building Code on January 1, 2017.

Degenkolb has been at the forefront of this regulation. The following are highlights of some of the over 100 buildings on more than 30 campuses that we are currently evaluating or upgrading:

Loma Linda University Medical Center Steam Plant

Loma Linda University Medical Center, Steam Plant SPC4D/NPC 5 Retrofit
This was the first SPC4D project approved in the State of California. Degenkolb is the prime consultant for the SPC4D /NPC5 Seismic upgrade of this 1964 steam plant serving the entire university and medical center campus. This facility needs to be seismically compliant beyond the year 2030 and serve the new acute care hospital. Upgrading the plant saved the owner $60 Million over the replacement option. Construction began in June of


Dignity Health St. Bernarndine Medical Center

Dignity Health St. Bernardine Medical Center, Central Tower SPC4D Retrofit
Degenkolb is the prime consultant for the SPC-4D seismic upgrade of this six-story steel moment frame structure that was constructed in 1972. Innovative design consists of providing external viscous damper frames, minimizing the disruption to the building. The building will remain operational during construction, which is to start in early 2017.


Scripps Mercy Hospital

Scripps Mercy Hospital, SPC4D Evaluation
We evaluated and confirmed the feasibility of SPC-4D upgrades for seven buildings at Scripps Health’s San Diego and Chula Vista campuses. Our scope included developing material testing programs, geotechnical report requirements, advanced structural analysis criteria, and preliminary drawings outlining the expected extent of retrofit work that will be required. We are currently conducting more detailed nonlinear analyses on the buildings that have “passed” the preliminary (screening) phase.


For further information regarding SPC4D compliance or evaluations, Please contact:
Daniel Zepeda at: or 213-596-5014
Or Michael Braund at: or 619-814-7008

Filed Under: Community, Degenkolb, Earthquake, Engineering, In The News, Seismic
Posted by allisonacosta on February 2, 2017 5:07 PM
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