Three Charleston area companies grabbed honors from a statewide organization recognizing top-notch efforts from firms versed in municipal beautification master plans, road and bridge construction and local infrastructure.

The American Council of Engineering Companies of South Carolina singled out 15 projects and studies Feb. 2 at its annual Engineering Excellence Awards Gala at the Columbia Museum of Art. The gala dates to 1987.

Award-winning engineering projects and studies ranged in value from $500,000 to more than $10 million in engineering and construction costs, the group says.

“These projects are fine examples of the work South Carolina engineering firms do,” says Tom Jordan, the council’s South Carolina chair. The group “is proud to recognize excellence as exhibited by these projects. The organization has been honoring engineering projects and studies through this program for 30 years,” he says.

The following Lowcountry entities won Engineering Excellence awards:

• The Sheridan Corp. in Charleston, which engineered seawall repairs for its client, the city of Charleston. According to the engineering council, the company also won the small firm award, presented to the business scoring the highest among smaller entities. Sheridan is a one-person firm.

• Collins Engineers Inc., of Charleston, which handled a structural assessment for Patriot’s Point USS Yorktown on behalf of the Patriots Point Development Authority.

• Stantec Consulting Services in North Charleston. It drew up the Hutchinson Square master plan for the town of Summerville.

The leading statewide honor, The Palmetto Award, went to AECOM of Columbia for its work on the Camden Wastewater Treatment Plant expansion. The company represented the city of Camden and the value of the project was more than $10 million.

Reach Jim Parker at 843-937-5542 or jparker@postandcourier.com.