Who Is ASI Constructors?


ASI Constructors, Inc. is a self-performing heavy-civil engineering contractor specializing in the construction and rehabilitation of dams (roller compacted concrete (RCC), earthfill, and conventional concrete), spillways, and other major water resource projects. We also offer many additional specialized services through our Marine Group including inspection, on-water/underwater construction, and maintenance.

Over the past 35-years ASI has constructed 145 new dam and dam modification projects, including 35 new dams and 110 dam modification and remediation projects completed. We are currently working on 12 new dam and dam modifications projects. ASI has completed more than 20 seepage cutoff walls in dam foundations, utilizing numerous specialty geotechnical construction methods, including the deep soil mix (DSM) cutoff wall technology. ASI has undertaken 12 of these projects in an ‘Early Contractor Involvement’ contractual arrangement.

ASI Constructors, Inc. provides our clients innovative and cost-effective solutions to their complex projects. Sophisticated engineering and construction technologies, an honest commitment to fair business dealings along with a partnering approach to our work, and a genuine culture of safety and quality management are the foundations that we build on in all of our projects. ASI maintains an operations-driven focus where performance defines success in all aspects of our business.

Some of the highlights of ASI’s achievements in dam construction include:

1. Completion of the largest RCC dam in United States, with approximately 3.25 million cubic yards of RCC and mass concrete (Taum Sauk Dam, 2010); 5. ASI has worked on dam projects in 27 states within the US and on six major international dam projects, spanning 6 of the world’s continents.

2. Construction of Australia’s two largest new dams since the 1960’s, including the Cotter Dam Enlargement Project, which is the largest RCC dam in Australia (Cotter Dam, 2013 and Wyaralong Dam, 2011);

3. Three time recipient of the United States Society on Dams Award of Excellence in the Constructed Project (2013, 2010, 2007); the highest award a dam project can receive in the US;

4. Construction of the first high-hazard dam in the United States through design-build contracting with a public agency (2005);

5. ASI has worked on dam projects in 27 states within the US and on six major international dam projects, spanning 6 of the world’s continents.


ASI General Contractors, Inc was founded in 1978 in Buena Vista, Colorado. The company was owned and managed by two partners and operated as a regional heavy-civil contractor, with a work portfolio that varied from small dams, tunnels, and industrial construction with annual revenues typically at $10 million. Buckhorn Dam

In 1984 the company constructed Middle Fork Dam in Parachute, CO. This was the second Roller Compacted Concrete (RCC) dam built in the United States. Throughout the mid 1980’s the company established itself as a leader in RCC dam construction.

In 1987 the company was reorganized as ASI RCC, Inc. with ownership maintained by one of the original principals and several minority partners. The company continued to operate as a heavy-civil contractor in the Rocky Mountain region and also maintained a leading position in the continually growing RCC dam construction market.

In 1997 the majority ownership of ASI RCC, Inc. was purchased by Patel Engineering, Ltd. and at that time two long-time shareholders assumed management responsibility for all company operations. Between 1997 and 2000 annual revenues were increased from $20 million to $50 million as the company expanded operations to both the Southeast and Pacific Northwest

Loch Raven DamASI Constructors, Inc. was incorporated in December 2005 in Colorado. In this corporate transition key management individuals purchased the majority of assets from the previous shareholders and re-established ASI Constructors as a domestic corporation.

The company remains privately owned by managing principals and key employees with proven track records for successful project delivery through a professional and hands-on approach to business and field operations.

ASI is headquartered in Pueblo West, Colorado and operates throughout the United States.


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. Wesley Seale Dam Spillway

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, and before 2020 this figure will increase to 80% of dams in the nation.

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 is a proven leader among contracting firms in this growing market segment with a 30 year history of successful project delivery.

Tom Miller DamASI Constructor’s principals have been responsible for the profitable management and construction of revenues that consistently ranks within ENR’s top 5 in dams since 2001, exclusively in dam construction and rehabilitation.

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.


ASI is a construction leader in the water resources industry, having successfully completed more than one hundred dam and dam rehabilitation projects and thirty new Roller Compacted Concrete (RCC) dams.

1850 E. Platteville Blvd.; Pueblo West, CO   81007
(719) 647-2821 phone     (719) 647-2890 fax