By Mark Holan, editorial director, ARTBA

ARTBA member RS&H, a Florida-based architecture, engineering and consulting firm, has acquired Colorado engineering company Tsiouvaras Simmons and Holderness, Inc. (TSH).

The acquisition allows RS&H to expand its Aerospace, Defense, and Aviation service offerings in the Western U.S. to the Transportation sector, including transportation planning; highway, bridge, traffic and hydraulic design; as well as construction management and inspection, according to the company’s May 29 news release.

RS&H is currently performing construction assessments and independent assurance testing services as owner representative for the $2.2 billion Central 70 Public Private Partnership (P3) in Denver.  TSH is currently designing the I-25 Express Lanes project from Johnstown to Fort Collins in concert with the Kraemer-IHC joint venture, in addition to several other state and local transportation projects.