EHRA Engineering is a civil engineering firm that offers a range of engineering design, surveying and construction management services. It has a staff of trained professionals that provides design and development, plan preparation, cost estimation and construction supervision services. The company undertakes commercial, residential and industrial projects. In business for over 75 years, EHRA Engineering (originally known as Edminster, Hinshaw, Russ, and Associates)offers land development services that feature site planning and design, water quality management and storm water retention, including Low Impact Development (LID). The company's construction management services include bid coordination, contract administration and inspection. Founded in 1936, EHRA Engineering maintains its corporate headquarters in Houston and is the city's second oldest civil engineering firm.