Barr project work offers challenges as well as opportunities for learning and growth
working at Barr

contact information for our corporate headquarters:

Barr Engineering Company
4300 MarketPointe Drive, Suite 200
Minneapolis, MN 55435

Phone: 952-832-2600

Fax: 952-832-2601
Toll free: 800-632-BARR (2277)
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challenging project

Barr has assisted Cooperative Minerals Resources in northern Minnesota with environmental permitting, engineering, and community outreach for testing a new technology to mine the largest known high-grade deposit of manganese in North America. The borehole mining process uses a water-injection technique that requires no chemicals or major excavation to recover the mineral, which is used to make batteries and strengthen steel.

For the feasibility trial that precedes commercial-scale mine development, we installed a state-of-the art robotic survey station to monitor surface subsidence and a second system to monitor movement or caving underground. The equipment collects data and sends that to project  websites that we can monitor remotely. The system can also trigger remote and onsite alerts if significant movement is detected. In addition, we visit the site biweekly to check the manually-read instruments. Our geotechnical subsidence monitoring will continue for about a year after operations at the site stop.