General Info

Alden is an acclaimed leader in solving flow-related engineering and environmental problems. The firm provides physical and computational air, gas, and hydraulic modeling along with environmental engineering and flow meter calibration services. Founded in 1894, Alden is the oldest continuously operating hydraulic laboratory in the United States and one of the oldest in the world. From the early days of hydropower development and aviation, through World Wars I and II, and into the modern world defined by environmental needs, Alden has been a recognized leader in the field of fluid dynamics consulting. In the 21st Century, Alden is a vibrant, growing organization consisting of engineers, scientists, biologists, and support staff. Much of our work supports the power generating, manufacturing, and process industries. Located in the hills of Holden, Massachusetts, we occupy 32 acres of land on which sit numerous offices, laboratory buildings, and support facilities. Our on-site instrumentation, carpentry, and machine shops provide the specialty fabrication and data acquisition systems needed to support our wide range of complex and multifaceted projects. In Environmental and Engineering Services, we have over 30 years of experience in developing and evaluating innovative fish protection technologies and upstream and downstream fish passage facilities, as required by CWA