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Brenna Rantala

Geotechnical Engineer

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Brenna Rantala works on a variety of projects involving traditional geotechnical engineering designs such as shallow and deep foundations, slope stability, seepage, bearing capacity, and settlement. Her work involves specifying, implementing, and interpreting soil and rock investigations, including data from drilling, cone penetrometer soundings, and in-situ testing; instrumentation installation and monitoring; and overseeing on-site and laboratory testing. Brenna also provides general fieldwork services for geotechnical investigations.


(218) 788-6360


Barr Engineering Co.
325 South Lake Avenue
Duluth, MN 55802

Phone: 218-529-8200
Fax: 218-529-8202
Toll free: 800-786-5830