Joliet consulting engineering firm celebrating 75 years

The company has offices in 10 locations across seven states and 450 employees nationwide

Strand Associates, an award-winning consulting engineering firm, is celebrating 75 years of “providing professional consulting engineering services to the public and private sectors,” according to a news release from the company.

Strand Associates was founded in 1946. Strand opened an office in Joliet 34 years ago, in 1987, and has 50 employees, the news release said.

The company has offices in 10 locations across seven states and 450 employees nationwide, the news release said.

One project that helped improve the sewer system on the east side of Joliet has won awards from various levels of “local, state, and national American Public Works Association and American Council of Engineering Companies chapters for its innovative engineering, the release said.

The project, which included an 865-foot tunnel under the Des Plaines River and wet-weather treatment additions, improved Joliet’s sewer system. Joliet can now treat up “117 million gallons per day of combined sewage and significantly reduce stormwater runoff to the river, the release said.

Strand has also served as a consultant to forest preserve districts in the Greater-Chicago area, the Illinois Department of Transportation and Illinois Tollway and many communities and counties, the news release said.

The company’s service specialties include “municipal/general civil, wastewater, water supply, transportation, electrical, mechanical, structural, and aviation engineering; green infrastructure solutions and sustainable design; energy evaluation; and financial assistance through grants and low interest loan programs,” according to the news release.

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