Triangle Engineering

1388 Haight Street #172

San Francisco, CA  94117

  1. (415)626-6972

duke@triangle-engineering.com

 
 

Hi.

I’m Duke Crestfield, P.E., and Triangle Engineering is my consulting engineering practice.


I specialize in existing buildings, including seismic upgrade, additions, alterations, and repairs.  Projects range from small projects at people’s homes to large multi-family and commercial buildings. 


I also provide Special Inspection services for jobs designed by other engineers.


My focus is on the practicality of the construction, in order to maximize value by giving the best building performance for the construction cost.




 
Services


Inspections & Reports



Structural Design & Construction Documents




Special Inspection & Testing



 
Files

Resume

RESUME-2010.pdf






Links

Structural Engineers Association of Northern California (SEAONC)

http://seaonc.org


Association of Bay Area Governments (ABAG) Earthquake & Hazards page

http://quake.abag.ca.gov


ABAG Planset ‘A’ (prescriptive home seismic strengthening)

http://quake.abag.ca.gov/residents/planset/


ABAG Soft Story Wood Frame page

http://quake.abag.ca.gov/housing/softstory/


ABAG Retrofit Contractor List

http://quake.abag.ca.gov/residents/retrofitprof/contractors/






 

About Triangle Engineering