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At ASI, we take pride in our work and offer to you only today’s most sophisticated engineering and construction technologies, along with innovative and cost-effective solutions to complex projects. 

ASI is an industry leader in dam and water resource construction. ASI specializes in RCC dam construction, water transmission and water infrastructure rehabilitation. ASI has experienced, proven, professional construction managers, engineers, design-builders and skilled craftsmen. We are a company dedicated to innovation, excellence, and integrity in our work.

At ASI, we stress a genuine culture of safety and quality management, and foster a partnering approach within our work. These are the foundations that ASI is built off of, and what makes us your premiere choice.


Annual water resource construction in the United States has fluctuated between $2.6 and $3.1 billion since 2000. Continued strong population growth has created strong pressure to increase water storage and distribution system capacities throughout the nation. Dams and reservoir systems are the most economic means to store and distribute municipal and irrigation water, as well as providing for flood control, hydroelectric power generating capacity, and recreational use. These multiple benefits have created a stable and steadily growing market for new dam construction.

More than 79,000 dams have been built for water supply, power, irrigation, flood control, and recreation in the United States. Many of these fail to meet modern engineering standards and most pre-1960’s-era facilities do not meet current regulatory safety criteria. Existing dams have typically been designed for a service life of 50 years. Today, more than 30% of these structures have surpassed their original design life and require replacement or major rehabilitation.

Failures of aging dams can be catastrophic, with damage measured in lost lives, displaced communities, and multiple-millions of dollars. Recent dam failures throughout the country have brought the condition of our nations dams into the media and political spotlights, and many states have embarked on major upgrade requirements for dams. Dam construction and rehabilitation is a technically challenging division of the water resources construction market. ASI’s client base includes Federal government agencies such as the US Army Corps of Engineers, US Bureau of Reclamation, NRCS and Fish & Wildlife Service, various State and Municipal government agencies, regional and local water infrastructure districts, and private hydroelectric power generation utilities.


On March 27, 2017, ASI Construction LLC, (ASI) a wholly-owned subsidiary of Shaft Drillers International LLC (SDI), out of Mt. Morris, Pennsylvania, completed an acquisition transaction with ASI Constructors, Inc. of Pueblo, Colorado. As part this acquisition, ASI  purchased substantially all of ASI Constructors, Inc.’s equipment and hired a team of approximately 300 professionals, who remain in the same operational roles for ASI that they served while employed by ASI Constructors, Inc.